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Oxalate Degrading Microbes: Reconsidering Pathogenesis

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An exciting new paper was published recently which should turn the oxalate world upside down. The authors hunted public databases and compiled a list of microbes that possess variations of a gene called oxalyl CoA decarboxylase. That gene makes a protein that degrades oxalate.

Oxalate is an ion used by microbes for communication between fungus and bacteria, but it is found at varying levels in plant food. Our bodies also manufacture oxalate during a stress response. Everybody makes some amount of oxalate in their bodies and eats sometimes huge amounts of oxalate in foods like spinach, beets, nuts and seeds, and also (alas!) chocolate. When oxalate in our bodies gets too high, it causes dysbiosis and becomes dangerous, tangling with mineral metabolism, and delivering harsh changes to mitochondrial function, adding in distressing levels of oxidative stress.

Humans lack any oxalate-degrading gene in our own genome. That means we cannot degrade oxalate using our own talents. Instead, we are reliant upon our microbes in the gut to degrade oxalate. From studying isolated human beings who have never seen an antibiotic, scientists have realized that like them, our ancestors had plenty of oxalate degrading microbes in the gut (termed oxalotrophic microbes). The job of these microbes was to keep oxalate from food from getting into the inside of their bodies. That system worked well even when the diet was high in oxalate, but things changed when our microbiome began to be damaged by antibiotics and antifungals, and other hits.

In this discussion, I would like to examine findings from this recently published study from China:  Abundance, Functional, and Evolutionary Analysis of Oxalyl-Coenzyme A Decarboxylase in Human Microbiota where they identified the microbial species that possess one of the two genes that we know are used to degrade oxalate in our intestines. We will also examine some other issues that this new knowledge unwraps.

Oxalate Degradation Is Dependent upon Thiamine and Is Impaired by Antibiotics

The protein oxalyl coenzyme A decarboxylase is dependent upon thiamine. It requires thiamine that is in other forms to be converted into thiamine diphosphate (TPP). Scientists have told us that this is the primary form of thiamine that microbes will make and use.

Some of us have inborn errors in our thiamine chemistry. Those errors might limit our delivery of thiamine to the inside of our gut so that our oxalate degrading microbes can use it. Another issue is that some antibiotics kill bacteria by attacking those microbes with a direct hit to their thiamine chemistry.

I had my own tangle with these issues very many years ago. Back in 1967, I was given two rounds of chloramphenicol, an antibiotic that attacks the thiamine chemistry in bacteria. In March of the following year, four months after I stopped taking the antibiotic, I developed bone marrow failure and almost died. The same blood disease, called aplastic anemia, has been found on occasion in primary hyperoxaluria, which is a genetic disease where the body makes fatal levels of oxalate coming mostly from producing oxalate in the liver.

Chloramphenicol was taken off the market in the US in 1968 because so many people died from blood problems that came on slowly like mine. Another antibiotic that attacks thiamine chemistry is Alinia and it is used broadly by functional medicine doctors. There may be even more antibiotics that would also cause this problem, but no one has done a systematic review of vitamin deficiencies caused by antibiotics. If someone would do this type of analysis of all licensed antibiotics, then doctors would have a list of antibiotics to avoid if their patients had a genetic weakness or a deficiency in thiamine or other vitamins. Also, some viral infections may purposefully impair thiamine chemistry to weaken the host. Polio is an example. That is why after certain infections, someone may actually develop a new oxalate problem.

Oxalate Degrading Species May Not Be Pathogenic

In the paper mentioned above, the researchers found 1739 Oxalate degrading species in humans. All of the different species they identified were equipped with oxalyl-Coenzyme A decarboxylase that allows microbes like oxalobacter formigenes to degrade oxalate. You may be surprised to learn that you have probably never heard of most of these species. Because I was curious about their identity, I looked for how many oxalate degrading bacteria show up on the GI Microbial Assay Plus (GI-MAP) test from Diagnostic Solutions Laboratory, or were found on the comprehensive-digestive-stool-analysis-(CDSA) from Genova Diagnostics. These are tests frequently ordered by functional medicine doctors or naturopaths. I have noticed how often these tests are ordered when a patient has some sort of GI distress because I routinely review that sort of lab work during consults and find out from the patient what his doctor prescribed after seeing the results of the test. Most often, the patient was given antibiotics. Of course, which antibiotic the doctor chose varied significantly.

Included in the list of bacteria that degrade oxalates, were many species that are believed to be pathogens because they were elevated on tests that were ordered at a time of increased symptoms. It is natural to assume these microbes were the primary cause of the symptoms, however, I cannot help but wonder if the relationship between these bacteria is what we thought it was. If oxalate is a communication method between microbes, how many of those symptoms could have been caused by the elevated oxalate or the effect of that oxalate on intestinal microbes? If oxalate is a favored food for these types of microbes, might they expand their population whenever oxalate is increased? This might be similar to how ants or flies may show up in numbers when you uncover food at a picnic. Flagging the increased count of these species on lab tests might have persuaded the doctors to treat with antibiotics, and there was no other game plan. Would reducing oxalate have helped solve the problem without antibiotics?

Oxalobacter Formigenes: An Oxalate Obligate

Within the oxalate field, a great deal of attention has been given to the microbe oxalobacter formigenes.  The man who discovered this microbe, Dr. Milt Allison, had a lot to do with inspiring me to start looking more carefully at oxalate in autism and other conditions, and that grew to include pain conditions, autoimmunity, and gastrointestinal distress.

The uniqueness of oxalobacter formigenes, as far as we know, has been that it is the only microbe that requires oxalate to survive. Its dependency on oxalate is why scientists call it an oxalate obligate. This trait is why this microbe has received the most attention from scientists and became the launching point of this Chinese paper.

In a different study that I have reviewed before in the TLO Research Corner on the Trying Low Oxalates Facebook group, scientists looked at the differences in the diversity of microbes that survive in a very high oxalate condition (which in this case was chronic kidney stones) and compared that to normal controls. These scientists found out that oxalobacter doesn’t tolerate a high oxalate environment very well. Please note that their title implies that oxalate causes dysbiosis and not the reverse.

In the last two decades, a company called Oxthera and its predecessor have spent millions of dollars trying to develop oxalobacter as a drug for primary hyperoxaluria.  Sadly, they still have no product on the market. Oxalobacter formigenes may have been the wrong microbe to pursue because the paper on dysbiosis found that this microbe really doesn’t like extremely elevated oxalate.  This may be like humans having a hard time eating a hundred hamburgers in one sitting. This Chinese paper shows that scientists now have many more choices of oxalate-degrading microbes to study for research.

What Might Cystic Fibrosis Teach Us About Oxalates?

I have talked to our TLO group about this before, but cystic fibrosis is a genetic condition very important for oxalate research. This condition involves a broken intracellular regulator which governs the secretion of oxalate and sulfate among its other duties. This is why people with cystic fibrosis are elevated in oxalate. If someone has this gene defect, the mucus becomes very thick in the lungs and it is prone to infection. People with CF often live from cradle to grave with antibiotics. Pseudomonas aeruginosa often becomes their most common infection, and yes, this microbe showed up on the Chinese list of microbes that degrade oxalate. Might pseudomonas aeruginosa be growing too high levels and turning pathogenic just because it is responding to oxalate as its favorite food?

We are used to watching with distress as flies and ants discover our food at a picnic. Does oxalate become a picnic for certain microbes?

Have we made other mistakes assuming the worst about microbes when they were actually providing a benefit to us? I recently reviewed a paper in the TLO Research Corner that showed that intestinal infections with candida protected mice from systemic infections, including systemic infections with candida.  Using antifungals destroyed that protection. Have we been confused about what was going on in microbial communities, putting black hats on microbes that might be trying to protect us from something worse?

Counting Microbial Species In Cystic Fibrosis

I used PubMed to discover that many of the oxalate degrading microbes identified in the Chinese paper have been commonly reported as infections in cystic fibrosis. This is what I found:

  • Pseudomonas – 7838
  • Burkholderia – 1624
  • Mycobacteria – 708
  • Achromobacter –  206
  • Klebsiella – 118
  • Pandoraae – 59

Is there a chance that excess oxalate in cystic fibrosis patients (which is known to occur) could be attracting and feeding these microbes in the lungs? Might the antibiotics used to kill these microbes be accomplishing something equivalent to killing the policeman or fireman who is trying to get rid of the flames to save your house? Could we have been making similar kinds of mistakes by not knowing which issues (like oxalate) were encouraging particular microbes to prosper?

Because of this Chinese paper, scientists may now have a very new direction to pursue.  Unfortunately, this direction may be politically risky for them because antibiotics have been the main thrust of treatment for decades and are considered to be lifesaving in cystic fibrosis.

Is it too late in this game for a shift of focus to happen?

Pathogenic Bacteria in Stool Tests: Maybe Not

I went through the list from this Chinese paper and identified microbes that showed up on the standard stool-sample-based test that a lot of doctors are now ordering rather routinely. Here is the count of bacterial species that are covered on these tests but which the Chinese paper identified as being microbes capable of degrading oxalate. The number of species is coming from the oxalate paper and not from the lab tests.

  • Escherichia – 252
  • Mycobacterium – 221
  • Lactobacillus – 70
  • Shigella – 46
  • Bifidobacterium – 38
  • Proteobacteria – 6
  • Salmonella – 6
  • Klebsiella – 4
  • Enterobacter – 3
  • Pseudomonas – 3
  • Yersinia – 2
  • Bacillus – 1
  • Bacteroides – 1
  • Citrobacter – 1
  • Clostridium – 1
  • Prevotella – 1

I discovered that this list of microbes from stool tests covered 48% of the species that the Chinese study identified. Other species they found that degrade oxalate will be less familiar to everyone.

Probiotics and Oxalate Degradation

The Chinese study found that 78 species of lactobacillus and 38 of bifidobacteria possess the oxalyl-coA carboxylase that degrades oxalate. These two types of bacteria are included in most probiotics, and now we know why this sort of probiotic has been so helpful maybe for centuries. Of course, our ancestors who began to use yogurts and kefirs certainly had no idea that a chief mode of their action was degrading oxalate. Were people with this habit the people who routinely ate potatoes or beets or Swiss chard? The following article on kefir also helped to identify the bacteria from kefir that the Chinese article found could degrade oxalate: acetobacter and pseudomonas as well as lactobacillus and bifobacteria.

Rethinking Our Relationship with Bacterial Oxalate Degraders

What do we know about other species they mentioned and when those species might show up? Did this list of species expand in the intestines in people after those people became high in oxalate? Might the bacteria also have increased when oxalate was leaving tissues where it had been stored during a phenomenon that our oxalate project calls dumping? This involves a sudden increase of blood and urine oxalate when previously stored oxalate comes out of tissues in a kind of rush.  Scientists have described this happening but never named it.

Could a mobilization of stored oxalate also have happened when someone was fasting while getting ready for surgery, or maybe fasting for their health? How do these bacterial populations shift when someone goes carnivore, and do we know if and when and how such a change may induce dumping?

Many previously unnoticed populations of microbes could have expanded because someone recently took an antibiotic that either killed the competitors of these microbes, or perhaps killed other oxalate-degrading microbes. Do we have any idea how these microbes would share an oxalate burden? Do we know under which circumstances one of them, versus another, would increase their population to meet that challenge?  Scientists suddenly have so many questions they need to answer.

The most glaring question is whether the symptoms that prompted a doctor to order a lab test, instead of being a response to “overgrowth”, were instead caused by the disturbances made by the way elevated oxalate affected both our microbes and our intestinal cells. Could the symptoms have arisen due to the conversations taking place between our microbes and our intestinal cells about a distressing level of raised oxalate?

Urinary Tract Infections: E. Coli

It didn’t take long for me to recognize that the genus the Chinese paper reported as the most largely represented among the oxalate degraders was E. coli, with a record number of 252 species identified. Did you know that E. coli is the most frequent microbe identified in urinary tract infections? Of course, the urinary system is where oxalate can reach a critical concentration that may provoke kidney stones. Is the E. coli showing up there in order to protect us from the oxalate in urine?

Many doctors routinely do urine tests to identify bacteria in urine during well woman visits. If they find bacteria present like E. coli, they may prescribe an antibiotic. Most frequently, this will be Cipro, a fluoroquinolone that may especially target oxalate-degraders, but it also likes to damage tendons. Previously, I have reported in the TLO Research Corner that scientists found that when doctors prescribe antibiotics for non-symptomatic urinary tract infections, it actually leads to a worsened patient outcome. That becomes glaringly obvious after a future symptomatic infection takes place after the microbes that were targeted by the antibiotic became antibiotic resistant. There is much here to think about.

Oxalate and Dysbiosis

I am listing next the species that were found to be present at higher levels in those with kidney stones versus controls in a paper I reviewed. That paper boldly stated that oxalate causes dysbiosis, rather than the reverse. Recently I looked again in their supplementary materials and found their list of species that were much more prevalent in those with kidney stones than in their control population. Those kidney stone patients had greatly elevated oxalate compared to controls. I looked for which of the microbes from that list had been identified in the Chinese paper as oxalate degraders, and these microbes made the cut:

  • Bacteroidales
  • Bacteroides
  • Bifidobacterium
  • Burkholderiales
  • Clostridia
  • Enterobacteriaceae
  • Gammaproteobacteria
  • Prevotella

Please note that many of these oxalate-degrading microbes are also on the tests for microbial overgrowth.

Are you, like me, gnawed by the question of whether these microbial populations increase merely because they found excesses of oxalate to degrade? When your doctor or practitioner orders a stool test, if these species seem to be in overgrowth compared to their reference population, will your doctor think about first suggesting that you try a low oxalate diet or identify other sources of oxalate in you BEFORE he considers the use of antibiotics?  Might addressing oxalate first be safer for your long-term intestinal health? We have learned that antibiotics might make your situation worse by perpetuating your issues with a longer term dysbiosis. Unfortunately, no one knows how to restore the anaerobic bacteria you lose with antibiotics. Probiotics won’t help you there since probiotics are cultured where air is present.

Rethinking the Role of Thiamine

We have all been in the habit of thinking that vitamins were in our diet just for our own benefit. It is a bit odd to think of vitamins also being there to nourish and equip our microbes. A new paper recently made it more certain that microbes in our colon actually make vitamins that can nourish our own colon cells and I am talking about the cells called colonocytes.

Other scientists have identified yet another thiamine requiring gene in a type of bacteria that generates acetic acid, which is a substance most of us know better as vinegar. This other protein is called oxalate oxidoreductase. They explain that the protein called oxalate oxidoreductase (OOR) metabolizes oxalate using thiamine pyrophosphate (TPP). The reaction generates two molecules of CO2 and two low-potential electrons. The gene is there to help the bacteria make acetic acid from oxalate.

This simple but elegant mechanism explains how oxalate, a molecule that humans and most animals cannot break down, can be used for growth by acetogenic bacteria.

So oxalate is good for those particular microbes, but only because they have this special gene that is only found in this type of bacteria.

A Giant Rethink Is In Order

If we have misunderstood the purpose of so many microbes, perhaps it is time that we change our thinking!

In much of the world this last year some of us learned that there were prejudices we were taught that gave us different points of view about many groups that we thought we understood. We learned that many of us needed to listen to people from other groups to find a different perspective. Groups we had belonged to had taught us to define ourselves by membership within their ranks, but those groups also perpetuated our having a narrow point of view.

Similar human influences have shaped what scientists and the public and even doctors were able to notice within scientific findings. Instead of realizing that microbes were a beneficial part of our bodies, we instead assumed they were dangerous. Why? We didn’t understand what exactly the microbes were doing with their superset of genes that outnumbered our genes by at least 140 to one. We had no tools to recognize ways that they were doing good things for us.

Now we are learning how they degrade oxalate and we are learning that their job of ridding us of oxalate is apparently a lot more important to human life than anyone ever knew before. We also learned that their task was accomplished by a much more diversified team of players than we thought. Scientists are diligently working to understand relationships that were unknown to us before.  These relationships are being revealed as we rid ourselves of some major assumptions.

So much of what we learned through these scientists deserves a giant rethink…like so many things that have happened to us this past year.

We Need Your Help

More people than ever are reading Hormones Matter, a testament to the need for independent voices in health and medicine. We are not funded and accept limited advertising. Unlike many health sites, we don’t force you to purchase a subscription. We believe health information should be open to all. If you read Hormones Matter, like it, please help support it. Contribute now.

Yes, I would like to support Hormones Matter. 

Photo by CDC on Unsplash.

This article was published originally on June 7, 2021. 

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Juvenile Rheumatoid Arthritis: An Unusual Treatment

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Case example 6.13 on page 248 of our book, Thiamine Deficiency Disease, Dysautonomia and High Calorie Malnutrition, is the story of a child with the conventional diagnosis of juvenile rheumatoid arthritis. The case is so important that I want to discuss it in detail, pointing out the reasons and the rationale for the treatment that was used.

Juvenile Rheumatoid Arthritis: A Case Study

An-eight-year-old Caucasian girl was first examined for juvenile rheumatoid arthritis, a diagnosis made elsewhere. She had been born prematurely with a birth weight of 1.6 kg. Early development was normal and she was receiving high scholastic grades. Six months previously her right knee became swollen and stiff. Fluid was aspirated and she received an intraarticular injection of corticosteroid. The laboratory tests showed no systemic effect and culture of the synovial fluid was sterile. Three months later the same knee became swollen and the joint was reported to be warm to the touch and tender. Laboratory tests were again reportedly negative. Appropriate doses of acetylsalicylic acid (aspirin) were started, which she was unable to tolerate because of nausea.

The first clue here is the premature birth. It had long been known that there was a legacy for premature birth and this has been confirmed recently  The second clue was that the laboratory studies were reportedly normal repeatedly, giving rise to speculation that this was an unusual example of  juvenile rheumatoid arthritis. The third clue, unlikely as it may sound, was the report of high scholastic grades. A well-endowed brain requires more energy than a less well-endowed brain. The nausea is a symptom produced by the brain, meaning that the aspirin had sent a signal into it, implying undue sensitivity of the cells receiving the signal. That kind of hypersensitivity reflects mild brain oxygen deprivation (hypoxia) or pseudohypoxia (inefficient oxidation)

Other symptoms were constantly cold hands, recurrent abdominal pain with nausea, easy fatigue, and pallor. Stiffness in the joint was more marked in the morning. Sleep requirement was noticeably increased compared with her two siblings and she was described as persistently irritable and bad tempered. On examination she was normal for height and weight and looked pale. Filiform papillae on the tongue were prominent. The heart rate was 140 bpm and the blood pressure 120/66 mm Hg. Both legs were mildly cyanotic (dusky blue) and the feet cold to the touch. Dermographic stimulation (with a fingertip) produced obvious blanching, which was more marked on the right leg. The right knee was swollen with some patellar tap (indicating fluid in the knee joint) and the circumference of the left thigh was measurably greater than that of the right. A qualified dietitian reported that her nutrient intake was adequate and she was counseled. Two weeks later she developed some swelling in the left knee. Examination revealed facial flush with circumoral pallor, overactive heart, audible femoral pulse by auscultation, unpredictable deep patellar knee reflexes varying from nonreactive to double in nature and mild cyanosis of the feet and hands together with well-marked hippus of the pupils (light stimulation produced alternate dilatation and constriction). Laboratory studies revealed an abnormal TPPE in red cell TKA, elevation of serum B12 and moderately increased ratio of creatine to creatinine in urine. There are a lot of clinical clues here, many of which I had discovered from experience over many years.

      • Increased sleep requirement. I had noticed that this was a reliable clinical test of energy deficiency. This has recently been confirmed .
      • Cold hands, recurrent abdominal pain with nausea, easy fatigue, fast heart rate, cyanotic legs and cold Without going into details, these symptoms are all due to oxidative dysfunction in brain cells.
      • Prominent filiform papillae on the tongue. These are part of the tongue surface structure. Although I do not know the mechanism, I have repeatedly observed this in children whose symptoms were resolved by the use of megadose thiamine. They look like little red spots because I assume that they are probably inflamed. The red spots disappear after the patient is reconstituted.
      • Demographic stimulation with a fingertip. Both children and adults can show this phenomenon. In the wake of the stroking action of the fingertip, a blanching occurs, producing a white figure on the skin. I have assumed that this is a local reflex affecting skin capillaries due to changes in autonomic nervous system controls. It does not appear in biochemically healthy people.
      • Flushed cheeks with circumoral pallor. This is something I have observed repeatedly in children affected by oxidative inefficiency of brain. This is reported in the medical literature as a typical appearance of streptococcal infection. My observations belie this and I think that it is simply a marker of stress and not unique to infection.
      • Audible femoral pulse. By placing a stethoscope over the inguinal ligament, the pulse was clearly audible. It is a characteristic described in the symptoms and signs of beriberi. In an adult case of beriberi the pulse can be audible without the use of a stethoscope.
      • Laboratory studies described. These are all typical of poor energy metabolism from thiamine deficiency.

Thiamine Treatment and Progression of Recovery

After informed consent of both the child and her parents, thiamine in the form of thiamine tetrahydrofurfuryl disulfide (TTFD), 150 mg per day, and a comprehensive high-potency multivitamin were started. TTFD is a synthetic derivative of allithiamine, a form of naturally occurring thiamine discovered in garlic. Its biologic action is that of thiamine but it has been found to have a greater biologic potency in animal studies and eventually in humans. Its action is that of megadose dietary thiamine  by stimulation of energy production.

Two Months

Two months later it was reported that there was no change in her knees but that her disposition was improved. Body weight had increased by 1kg. Recurrent cyanosis and coldness of the feet were still present. The right knee was swollen and there was about 5° of flexion deformity. No patellar tap could be elicited.

Three Months

Three months later she reported the disappearance of pain and stiffness and her activity included running and riding a bicycle.

Seven Months

After seven months she reported full physical activity without pain or stiffness and great improvement in personality. She looked well. There was mild livid mottling of the skin in the legs. Blood pressure was 100/60 mm hg and heart rate was normal. Thigh circumference was still greater on the left, but no deformity or swelling was detectable in either knee. Red cell TKA had increased and the TPPE had fallen to 1.8%. The dose of TTFD was decreased to 100 mg per day. In addition to the physical improvements, there was noted improvement in personality and behavior. I would like to suggest that irritability and bad temper is usually considered to be the personality of a child in pain and it might be, however, my experience with bad temper in children without arthritis is that the personality changes dramatically when they receive megadose thiamine. The expression of  normal personality is a function of a healthy brain, dependent on cellular energy.

A Relapse

In the next few months it was revealed that there had been some stresses within the family, although their nature was not discussed, and eight months after decreasing the dose of TTFD there was found to be some synovial effusion and swelling in the left knee. Urinary ratio of creatine to creatinine had again increased. The dose of TTFD was increased to 200 mg/day. Four months later TTFD was replaced by thiamine hydrochloride, 300 mg per day. General health was good and she was asymptomatic. Urinary creatine/creatinine ratio had decreased. At the age of 12 years when last examined, she was completely well and free from symptoms. It should be noted that the re-emergence of her symptoms was in direct relationship to the additional energy requirement brought on by the family stress. Stress is defined as any form of environmental attack requiring an energy dependent adaptive response, whether this is a prolonged mental struggle, trauma or infection. The reappearance of joint pathology suggests that the family stress had siphoned off adaptive energy for brain use: hence the decision to increase the dose of TTFD. Additionally, a higher than normal urinary ratio of creatine/creatinine is evidence of an energy deficit. When the high ratio decreased in this patient, it indicated an improvement in energy metabolism

Points of Consideration

A study of 225 juvenile idiopathic arthritis cases (JIA) and 138 playmate-matched controls has been reported. Compared to the controls, preterm delivery was associated with JIA (3). Premature infants constitute a risk group for thiamine deficiency. Thiamine diphosphate (TDP) was determined in whole blood in the first days of life and approximately every two weeks in 111 premature infants. TDP concentrations showed an age-dependent decline. Obviously, this raises the question of the long-term legacy because this patient was eight years of age. Without going into the details of the laboratory study, the effect of adding thiamine pyrophosphate in showing an acceleration in red cell transketolase activity proved that there was indeed thiamine deficiency. Glucose metabolism not only provides energy for physical activity that also mediates a variety of physiological processes through the formation of complex signaling networks. Recent studies have indicated that glucose metabolism plays an important role in the pathogenesis of rheumatoid arthritis. Since thiamine plays a vital part in glucose metabolism, it is not too big a jump to see why megadoses of thiamine had this remarkable effect. There is much evidence that energy metabolism plays an enormously important part in the etiology of many if not all diseases. Perhaps the use of TTFD should be explored in the treatment of other inflammatory diseases. The length of treatment, measured in many months, is a very strong indication that this was far from being a simple dietary phenomenon. There may have been a fundamental genetic abnormality, but it raises the question whether thiamine deficiency during pregnancy can give rise to a prolonged legacy that interferes eventually with the growth of the child.

We Need Your Help

More people than ever are reading Hormones Matter, a testament to the need for independent voices in health and medicine. We are not funded and accept limited advertising. Unlike many health sites, we don’t force you to purchase a subscription. We believe health information should be open to all. If you read Hormones Matter, like it, please help support it. Contribute now.

Yes, I would like to support Hormones Matter.

Photo by Lucaxx Freire on Unsplash.

This article was published originally on September 12, 2019. 

Rest in peace Derrick Lonsdale, May 2024.

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Introducing a New and Improved Thiamine Testing Platform

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Introduction

It is my great to pleasure to introduce a new thiamine testing platform, the Erythrocyte Transketolase Activity Coefficient (ETKAC), offered by the Clinical Immunology Laboratory, in North Chicago, IL. ETKAC is a functional enzymatic test designed to evaluate the activity of the thiamine-dependent enzyme, erythrocyte transketolase, both in its resting/uninfluenced and activated state. Compared to other available thiamine testing assays, the ETKAC provides functional assessment of in-cell activated thiamine and evaluates potential abnormalities in thiamine-dependent enzymes. The test is currently available via physician request, but we hope to provide more direct access in the future.

What Is Thiamine Deficiency and Why We Need Better Testing

Thiamine (vitamin B1) is the precursor to the coenzyme thiamine pyrophosphate (TPP), also termed thiamine diphosphate (TDP/ThDP). It is an essential B vitamin in humans that is required for carbohydrate, fatty acid, and even protein metabolism. As such, it is critical for health and plays an important role in nerve function.

TPP, the bioactive component of thiamine, drives enzymes found in multiple metabolic pathways that include the pentose phosphate pathway, citric acid cycle, and glycolysis. In this way, thiamine contributes to the structure of the nervous system by inducing energy production (ATP), and synthesis of vital compounds such as lipids and acetylcholine. Without thiamine, mitochondrial respiration is suppressed and ATP capacity wanes.

Frank or severe deficiencies in thiamine result in Beriberi and Wernicke-Korsakoff Syndrome. These syndromes are well understood and, in some cases, can be attributed to alcoholism and malnutrition. Despite being well understood, frank deficiency may be missed clinically, especially in non-alcoholic and presumably well-nourished populations, but also in the early stages of the deficiency when symptoms may be attributed to other common disease processes. Some of the patient populations with underlying thiamine deficiency who may benefit from thiamine testing include those diagnosed or suspected of chronic fatigue syndrome, fibromyalgia, individuals who are diabetic, or who are experiencing neurocognitive or neuromuscular symptoms. Pregnant women should also be tested for deficiency, especially when hyperemesis gravidarum or pre-eclampsia are present. More information on patient populations affected by insufficient thiamine can be found here.

Unfortunately, traditional testing may miss subclinical, functional, and genetically-induced thiamine deficiencies. Plasma testing, for example, is highly susceptible to dietary fluctuations in thiamine. If an individual has recently consumed thiamine-rich foods, the test may indicate thiamine sufficiency, when in reality, the individual is truly deficient. Likewise, if the individual is deficient in magnesium, which is required to activate thiamine (phosphorylate free thiamine into the bioactive thiamine pyrophosphate or TPP) and/or the individual has a genetic defect that diminishes the activity of any portion of the thiamine metabolic pathway, plasma thiamine tests will appear normal even though the individual is deficient. With magnesium deficiency, free thiamine may be sufficient, but bioactive thiamine will be deficient. Similarly, with thiamine-related genetic variants, free thiamine and perhaps even TPP will be within range, but the ability to use thiamine effectively will be impaired.

Whole blood TPP testing, although more accurate than plasma-based assessment and not susceptible to fluctuations in dietary intake, is still problematic in some cases. It is susceptible to supplemental intake [Tietz Textbook of Clinical Chemistry and Molecular Diagnostics, pg 661], which means that if the individual is supplementing with thiamine either alone or in a daily multi-vitamin, and/or is on a thiamine-repletion protocol due to a recognized deficiency, the testing may falsely indicate that he/she is no longer deficient, despite symptoms to the contrary. Since whole blood TPP assess the bioactive form of thiamine, TPP, it is more sensitive to some functional deficiencies. Unfortunately, it is not sensitive to whether or not the individual has the capacity to use that TPP because of genetic abnormalities or chronic health issues.

Measuring Enzyme Activity to Assess Nutrient Status

Rather than measure the nutrient in circulation, a more accurate form of testing involves the measurement of enzyme activity in erythrocytes or red blood cells. Since enzymes depend upon specific vitamins for functionality, when we measure the enzyme activity both in its basal state (resting/uninfluenced) and in response to the nutrient, we can reliably assess nutrient status. This will more accurately portray tissue concentrations than circulating concentrations. In that regard, enzyme activity tests are considered functional assessments of nutrient status.

Enzyme activity tests have been used for decades to assess a number vitamins and minerals. For example, glutathione reductase activity is used to measure riboflavin (vitamin B2) status. Similarly, the enzyme transaminase is used to measure vitamin B6 activity. Minerals like zinc and magnesium are best evaluated intracellularly instead of just measuring circulating levels.

To measure thiamine, the erythrocyte transketolase test is used. It was initially developed around 1962 and further improved and utilized through the 1970s. However, as time passed, the assay fell out of use in favor of the quicker and more cost effective, though less clinically sensitive, plasma and whole blood measures.

Recognizing the increased incidence of modern thiamine deficiency and a need for more sensitive testing, the scientists at the Nutritional Biomarker Laboratory (NBL), in the University of Cambridge, have developed an improved erythrocyte transketolase activity coefficient, or EKTAC, test. A slightly modified form of the NBL assay has been validated and applied at the lab in which I co-direct,  Clinical Immunology Laboratory (CIL), in North Chicago, IL.

Evaluation of Thiamine via Erythrocyte Transketolase Activity

The transketolase enzyme is a TPP-dependent enzyme that can be found in the cytoplasm of a variety of tissues including blood cells and the liver. The Erythrocyte Transketolase Activity Coefficient (ETKAC) measures tissue level TPP as a function of transketolase ratio with and without the presence of exogenous TPP. That is, enzyme activity is assessed in its basal state and after TPP is added. If enzyme activity increases in the presence of TPP, it indicates deficiency. How much enzyme activity increases tells us how bad the deficiency is. Table 1. below shows the cutoff values between sufficiency and deficiency. The ETKAC range is well established in the literature and by the consensus of the clinical chemistry associations (AACC/ADLM).

Table 1. ETKAC reference ranges.

Thiamine Status ETKAC
Sufficiency <1.15 (less than 15% increase)
Insufficiency – Moderate Risk of Deficiency) 1.15-1.25 (15-25% increase)
High Risk of Deficiency >1.25 (more than 25% increase)

When a Normal Transketolase Test May Not Be Normal

While the measurement of the transketolase activity in response to thiamine is among the most sensitive and specific tests of thiamine deficiency at the tissue level and its results tell us whether the individual is able to use circulating thiamine effectively, there are caveats. There are instances where transketolase activity in response to thiamine will appear normal or near normal (ETKAC values close to 1.0), but clinical symptoms and basal activity of the enzyme suggest problems with thiamine. This is because enzyme kinetics have been altered either genetically or environmentally. Some examples of conditions that alter enzyme kinetics include:

  1. Genetic mutations: Some mutations in the transketolase enzyme cause a lower affinity of the enzyme to TPP. Here, the affected individual will show falsely normal ETKAC but low basal activity (i.e. without addition of exogenous TPP). In this case, the clinician can use this information to manage these individuals and potentially embark on genetic testing, when indicated by paying closer attention to enzyme basal activity.
  2. Reduced transketolase levels. Individuals with chronic low levels of thiamine can undergo reduction of transketolase levels. This may show up as normal ETKAC but low basal activity. This effect seems to correct upon repletion of thiamine. In this case, an individual will have a normal ETKAC (close to 1.0) that eventually increases as transketolase enzyme levels increase; thus the deficiency is unmasked. This happens because of the increased expression of apoenzyme (non-thiamine bound enzyme) without concomitant increases of sufficient thiamine concentrations. After this, as the patient is more replete with thiamine, ETKAC corrects back to true normal levels near 1.0.
  3. Increased ETKAC. Some patients with bronchial and breast carcinomas may have falsely elevated ETKAC. It is thought that this is likely due to conversion issues from thiamine to its TPP forms (active co-enzyme). Use of basal activity parameter in this case will assist in excluding the possibility of aberrant enzyme expression.
  4. Additional nutrient deficiencies. Other nutrient deficiencies may affect total enzyme levels. For example, Vitamin D has been shown to increase the expression of transketolase by close to 4 fold (400%) in some in vitro studies. Similarly, if zinc or other gene expression factors are needed for transketolase transcription, then the same effect from the above point would occur until these factors are first addressed.
  5. Clinical conditions and medications. There are known clinical conditions (e.g. liver disease, uremic neuropath, gastrointestinal dysfunction, polyneuritis, diabetes), and drugs that can reduce the levels of the apoenzyme.

It is for these conditions and potentially others, that assessing and reporting the basal activity of the enzyme, along with its activation quotient is useful.

How to Interpret Basal Activity Results

Although the cut-offs for basal activity are not as clearly understood as those for the ETKAC test, a value of 0.59 U/gHb or less has been shown to indicate thiamine deficiency across different patient populations. The Clinical Immunology Laboratory group has recently confirmed the lower limit of 0.59 U/gHb, and established an upper normal limit of 1.00 U/gHb.

Table 2. Proposed ranges for ETK basal activity tests.

ETK Basal Activity
Lower Cut-off 0.59 U/gHb
Upper Cut-off 1.00 U/gHb
Clinically Verified Cut-off for Thiamine Deficiency given Normal Enzyme Levels <0.59 U/gHb

Conclusion

Thiamine, in its active form TPP, functions as a rate-limiting co-enzyme in multiple pathways related to carbohydrate and energy metabolism. Deficiency of thiamine results in a host of seemingly unconnected symptoms that range in severity depending on the degree and duration of deficiency. It is not uncommon for frank and subclinical thiamine deficiency to be missed due to the cluster of seemingly unconnected symptoms, but also because of unavailability of sensitive and accurate testing. The ETKAC assay has an advantage to other thiamine assays due to it being a functional enzymatic test that can detect transketolase abnormalities, as well as thiamine status, as discussed above. In contrast, directly measuring plasma thiamine or whole blood TPP can lead to false normal results or miss a functional deficiency, respectively.

The ETKAC and Basal Activity assays have not been readily available in the United States for clinical testing until now. The Clinical Immunology group in North Chicago, a high-complexity CLIA-approved laboratory, has recently validated an affordable, and easy to order ETKAC assay. The test currently requires ordering through a physician; however the laboratory is planning on providing a direct-to-consumer service in the near future. CIL’s ETKAC assay provides both quotient and Basal Activity parameters in order to give patients and doctors the results they need for appropriate treatment. More information about the test, the requisition and sample shipping instructions can be accessed through CIL’s webpage. CIL can be contacted for questions regarding ETKAC ordering and/or interpretation. More information about ETKAC can be found on the laboratory’s website.

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Notes On Thiamine Status During Pregnancy

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Thiamine pregnancy

Currently, I am researching thiamine status during pregnancy for a series of articles to be published by the newly formed Thiamine Advocacy Foundation. Over the next few months, I will be publishing snippets of that research, and of course, when the project is finished, I will let everyone know and provide links to the articles. Today, I want to discuss a study published in 1980 about thiamine deficiency in pregnant and non-pregnant women.

For this study, the thiamine status of 60, presumably healthy, pregnant women was assessed across multiple times points (second trimester, third trimester, and in the immediate postpartum. Not all women completed all assessments. Food diaries were collected for three days preceding each test time to identify thiamine intake and a lifestyle survey to assess contraceptive use, smoking and alcohol history was given. Samples and diaries from 20 non-pregnant women were collected as well.

To determine thiamine status the erythrocyte transketolase test with thiamine pyrophosphate activation was used. This is among the reasons I found this study useful. It is only one of only a few studies of this population using the transketolase test. Recall from Dr. Lonsdale’s discussion Understanding the Labs (and here), the transketolase test is arguably a more accurate measure of thiamine status than plasma, serum, and some measures using whole blood.

Using the transketolase test, researchers found that 30% of the non-pregnant women were deficient in thiamine as were 28-39% of the pregnant/postpartum women depending upon the phase of pregnancy. Importantly, not all women were deficient at all test times. This means that the deficiencies likely waxed and waned relative to other variables like intake and stressors. Intake was considered sufficient in all but 10 of the women and for those 10 women it was only minimally below the RDA. Additionally, the researchers reported that previous oral contraceptive use had no apparent effect on thiamine status during pregnancy but that there was a trend for an increased risk of deficiency with previous pregnancies.

While this was a small study, the percentage of women who were deficient in thiamine was striking, especially the non-pregnant controls. If thiamine is deficient before pregnancy, the risk of severe health issues across pregnancy increases. Here though, none of the women who were deficient in thiamine displayed the classical symptoms of thiamine deficiency, although details were lacking. Moreover, all of the women delivered presumably healthy children, or at least healthy weight children, as other parameters were not measured. Again, this finding is important because it suggests that either 1) what we expect to see with deficiency during pregnancy is not completely accurate, 2) that the persistence or chronicity of the deficiency matters, and/or 3) that it is not simply a deficiency in thiamine that causes some of the more severe complications of thiamine deficiency during pregnancy.

I have written previously about the mismatch between classically defined symptoms of thiamine deficiency and what we are more likely to see with modern diets and stressors. I suspect this applies to pregnancy as well. I have also written about how thiamine status is likely to change relative to intake and demand. Rodent studies have shown that the typical neurological symptoms of deficiency do not appear until there is 80% decline of thiamine stores. Since we store a little over two weeks of thiamine, one would have to completely eliminate intake for more than a week before those symptoms might emerge, and even then, it might be a while before they were recognized. This is certainly a factor with hyperemesis gravidarum, the severe vomiting that some women experience during pregnancy but perhaps not in non-HG related pregnancies.

It is important to note, however, HG and thiamine deficiency go hand in hand. Thiamine deficiency, along with other deficiencies, may trigger HG (think gastrointestinal beriberi) in the first place, and once the vomiting begins, will easily deplete thiamine stores. None of the women in the current study developed HG, however, or other complications, so that leads me to believe, that we need additional triggers and we need persistent or chronic thiamine deficiency before noticeable complications arise.

In this study, all we have are indications of deficiency at specific points in time. We have no evidence of how long those deficiencies were present or whether other variables were somehow buffering maternal and fetal health such that the typical complications associated with thiamine deficiency were not observed. Even so, a finding that upwards of 30% of a test population of women, both non-pregnant and pregnant thiamine deficient speaks to how common this deficiency may be and how close to the precipice of more severe health issues a percentage of the population resides. Although observable changes in health were not reported or perhaps even recognized in this report, knowing what we know about thiamine’s role in energy metabolism, it is not unlikely that there were many negative metabolic patterns brewing just below the surface.

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More people than ever are reading Hormones Matter, a testament to the need for independent voices in health and medicine. We are not funded and accept limited advertising. Unlike many health sites, we don’t force you to purchase a subscription. We believe health information should be open to all. If you read Hormones Matter, like it, please help support it. Contribute now.

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This article was published originally on November 29, 2023.

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The Exquisite Simplicity of Health and Illness: Mitochondria and Energy

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For years I have struggled to get people to understand the relative simplicity of what causes us to get sick. Our medical model implies that each disease has a specific cause, and therefore, has a specific treatment. If you look seriously at what makes us tick, there are several obvious factors involved. Yes, we are provided with a “blueprint”, given in code called DNA, by our parents. Since the discovery of DNA, medical research has emphasized almost to exclusion of other factors, that genetics is the primary research area. The most amazing recent finding is that our cellular genes (the blueprint) can be manipulated by our diet and lifestyle.

Diet and Stress

Even though the great Hans Selye studied the effects of physical stress on animals, we have neglected it in relationship to human health. He said that humans were suffering from what he called the diseases of adaptation. What he meant by that was that any form of “stress” has to be met by an adaptation that requires a huge amount of energy. The brain causes the body to go into a defensive mode when we are attacked by a microorganism and it should not be surprising that it requires energy. Sometimes a severe form of stress is associated with fever that should be regarded as an automated defensive action. In fact, I knew of a patient in whom the cause of her persistent fever could not be determined by standard laboratory methods. It was written off as “psychosomatic”, because of personality factors.

The idea, however, seems to me to be a reduction to absurdity based on collective ignorance of the underlying mechanism. The symptoms that we develop are caused by all the actions that make up the defensive mode and we call that the disease. For example, fever is part of the defense because it renders the attacking organism less efficient. Hence, the attacking organism is a “stressor”. Perhaps prolonged mental stress can produce fever in a metabolically abnormal brain because of causative misinterpretation by the brain.

It has long been time-honored that we bring the temperature down artificially as part of the treatment for infection, thus losing an important part of the defense. It wasn’t the flu virus that caused Reye’s syndrome, a disease that caused the death of many children. It was the aspirin given by the mothers to bring their child’s temperature down.

Energy Deficiency and Mitochondria

When you read a telegram giving you bad news, when you ride a bicycle, when you run cross country or shovel snow, we take it for granted that the energy will be forthcoming, that is if we think about it at all. Energy deficiency in the heart muscle could easily explain the “drop-dead” phenomenon occasionally experienced by elderly people in the winter when shoveling snow, usually written off as a heart attack from coronary disease that could easily be part of the event. Could that death have been prevented by analyzing the state of nutrition for that individual?

Another great discovery is that we have a separate set of genes that preside over the functions of our mitochondria. These are the organelles within each of our cells that produce the energy that enables us to function. Sick mitochondria produce sick people, because energy consumed must be met by energy synthesized. We now know that mitochondria have their own genes completely separate from the “blueprint” genes. Mitochondrial genes are passed to the children by the mother. When damaged mitochondrial genes are passed on to children, it becomes a form of maternal inheritance. An obvious question is whether the damage to genes can be caused in adult life from malnutrition or whether the damaged genes passed on to the children are invariably inherited from grandma.

Energy synthesis depends upon an exquisitely complicated set of nutrients that are derived from what we eat, so nutrition becomes the third factor. It is therefore very likely that an element of each of these factors is always involved. Yes, it is true that a genetic mistake may be the primary cause, but a lot of genetic mistakes are really risk factors that begin to produce a given disease in relationship to “stress” and “nutrition”, both of which always play a part.

We now know that the induction of the first symptoms of beriberi, a well-known vitamin deficiency disease that has dogged mankind for centuries, can be fully initiated by sunlight exposure in a person with marginal deficiency. There may be mild symptoms attributed to other “more acceptable” causes or even no symptoms of vitamin deficiency prior to sunlight exposure. In the early investigation of beriberi, the appearance of symptoms in many individuals at the same time misled the investigators who concluded that it was due to a mysterious infection. We now have reason to believe that ultraviolet light imposes a “stress” in an individual whose metabolism is marginal, thus initiating the true underlying cause.

Healing Comes Naturally If We Let It

The human body, as we all recognize, is beautifully designed and healing is a natural phenomenon built into our system. The body knows exactly what to do, but like stress factors, healing requires energy. So, it seems to make absolute sense that we cannot possibly produce healing by the use of compounds that are completely foreign to our cellular system. Shouldn’t we be using methods that assist the healing process by stimulating mitochondria to produce the necessary energy? Surely, the only possible assistance must be through the use of nutrients. At present, we know that there are well over 40 separate non-caloric nutrients that we must get from our food to maintain health and this may not be a full complement.

Feeding the Body Fuel to Heal: Of Vitamins and Minerals

I give this as a forerunner to news that I came across quite recently. I am reasonably sure that it will be known by people who love American sports. Everyone knows the name of Bernie Kosar, the great quarterback of the Cleveland Browns back in the good old days. Bernie understood the highs and lows of football. He had hundreds of concussions, broken bones and torn ligaments over 8 ½ seasons. In retirement he suffered pounding headaches, sleepless nights, anxiety and increased weight. Speech slurring made people think that he was drunk. Amazingly, his family didn’t believe that he had genuine symptoms and thought that he was merely trying to gain attention. The slurred speech was thought to be due to alcohol, the weight gain from overeating. After his retirement, apparently he spent some time in Florida and he learned there of a physician who was using intravenous vitamins to treat the kind of symptoms of which he complained. He tried it and immediately began to feel better. In fact he was so impressed that when he came north to live in Ohio he looked for a physician who could continue this treatment. He was directed to a doctor Pesek, founding holistic physician and CEO of Vital Health in Cleveland, Ohio. Dr.Pesek uses holistic superfoods and megadose vitamins to treat his patients. Kosar gets two or three intravenous infusions of vitamins a month. His headaches have decreased, his sleep is improved and he has lost 60 pounds in weight. This is loss of accumulated water in the tissues, a signature of  mitochondrial disease, not loss of fat. In fact he is so impressed that he is going to bring it to the notice of the NFL concussion settlement. He wishes that he had started it earlier. He says that “he knows of guys who are older and some who are younger than me and it goes south quickly”.

Healing the Brain

Because the methodology is “out of the box”, it is likely that a common explanation would be the so-called placebo effect. But that effect has to have a mechanism and perhaps the approach with nutrients actually stimulates this effect. What we know about brain injury is that the damage upsets the normal balance of metabolism. It causes a release of oxygen radicals, a phenomenon that can be likened to the production of sparks in a fire. The damage is cumulative, eventually giving rise to the kind of symptoms experienced by Kosar and also by Mohammed Ali, who went on to suffer from Parkinson’s disease. Neglect the early symptoms, almost always mistaken for psychosomatic disease, and the damage slowly accumulates, eventually becoming irreversible and untreatable. I suggest that this is represented as one of the many neurodegenerative diseases such as Alzheimer’s or Parkinson’s. Under the present medical model, it might easily be assumed that intravenous vitamins are a specific treatment for the effects of concussion and should be reserved for that. The point is that there are many avenues to metabolic imbalance. For example, if type I diabetes was determined by a genetic effect, why do the symptoms not appear for many years?  If genes are solely responsible, diabetes should be present at birth. The answer is that other factors come into play including malnutrition and aging. In fact, in the state of genius, it might be that even the best possible diet does not provide sufficient energy, perhaps explaining the long-term illnesses of the historical figures, Mozart and Charles Darwin, both of whom suffered lifelong from symptoms that have often been regarded by historians mostly as psychosomatic.

We Need Your Help

More people than ever are reading Hormones Matter, a testament to the need for independent voices in health and medicine. We are not funded and accept limited advertising. Unlike many health sites, we don’t force you to purchase a subscription. We believe health information should be open to all. If you read Hormones Matter, like it, please help support it. Contribute now.

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This article was published originally on July 31, 2017.

Rest in peace Derrick Lonsdale, May 2024.

 

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Hormonal Birth Control Plus Poor Diet Is a Recipe for Disaster

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birth control side effects

I am a 29 year old female who began experiencing a decline in my health at 25 years old. This was in 2020. At that point, I had been on hormonal birth control for nearly 10 years. I suspected the birth control was contributing to my ill-health but my doctor disagreed and continued to prescribe different forms to alleviate my symptoms. That did not work and only made things worse. When Depo-Provera was added, I completely crashed and have not recovered, nearly two years later.

When I first began to experience extreme fatigue, abdominal bloating, irritability, restlessness, and massive amounts of hair falling out, I went to my primary care doctor who could find no reason for it on basic bloodwork, except for a low vitamin D level (27mg/mL). They checked CBC, CMP, autoimmune markers, B12, a complete thyroid panel, Lyme titers, mono titers, and iron levels. Since everything was basically normal, my primary care doctor blamed it on my stressful job. At the time, I was working in the emergency room on the night shift. I was not getting the best sleep, and not eating that well either. I was lucky to eat one meal a day and then maybe a snack especially on my busy shifts. On my days off, I was so exhausted that I would eat maybe twice a day. My diet consisted of easy meals like grilled chicken, salads, granola bars, processed cereals, pizza, chicken nuggets, chips, bananas here and there, and overall not a lot of fruits or vegetables.

Enter Depo-Provera

Fast forward to the fall of 2021, after these symptoms persisted, my doctor decided to switch my birth control to the Depo-Provera shot. After taking this shot, havoc was wreaked on my body and brought me down to a level of non-functioning that I never knew existed. Over the next couple months and after taking only one depo shot, I began to experience debilitating symptoms of headaches, fatigue, achy joints/all over body pain that eventually progressed into episodes of heart-racing anytime I would change position. I also experienced shortness of breath, chest pain, difficulty swallowing, a complete loss of appetite, GI issues, brain fog, severely decreased ability to concentrate, severe restless leg syndrome, insomnia, and neurological symptoms so extreme it felt like my brain was “short circuiting” for lack of a better word.

One side of my body would become extremely numb, tingly, and feel weak without any clear deficits. I experienced severe muscle weakness, where it would feel like my body was doing everything it possibly could to keep me upright and breathing. It was so bad, I felt as though I couldn’t even grip my phone and just talking on the phone to family felt like I was dying. I could barely concentrate. I developed severe visual issues, a condition called visual snow syndrome, and still am dealing with it with no improvement. I also developed tinnitus and have a constant high pitched ringing in my ear. I am unable to handle any type of stress, multi-tasking, or any emotional upset without truly feeling like my body is dying from severe neurological symptoms. I became scared to leave the house alone because of these debilitating symptoms. I lost over 30 pounds from feeling so awful and a complete loss of any desire to eat. I would have to force myself to put in fluids or food.

Over the course of many months, I saw multiple neurologists, neuro-ophthalmologist, cardiologist, electrophysiologist, primary care doctor, ENT, TMJ specialist, otologist, binocular vision specialist, rheumatologist, had numerous ER visits, two hospital admissions. I even participated in vestibular/neurological physical therapy over the course of several months. I had multiple head MRIs and CTs of my head and neck, MRIs of my spine, and so much bloodwork looking for autoimmune causes. I had a colonoscopy, a camera down my nose to look at my throat, an audiogram, a sleep study, a tilt table test, an echocardiogram, a stress-echocardiogram, and they even attempted a lumbar puncture on me as well. Conditions such as blood clots, multiple sclerosis, any type of cancer or tumor, etc., were ruled out and the only thing they came up with was a diagnosis of Postural Orthostatic Tachycardia Syndrome (POTS), a suspicion for “some type of migraine variant” and a deficiency in vitamin D and phosphorus on my bloodwork.

Could This Be Thiamine Deficiency?

Fed up and worsening, I paid out of pocket to go to a natural medicine doctor who did heavy metal and mold testing on me along with hormone testing. Nothing really turned up there and so I took it upon myself to order a full vitamin and mineral panel paying over a grand out of pocket. This panel revealed that my serum thiamine was one point away from being flagged as low (8 nmol/L). I then returned to my primary care and two different neurologists to ask if a thiamine deficiency could be the problem or at least part of it, especially after my own research and the known research that birth control depletes many B vitamins. All of the doctors told me that there was no possible way I could have a thiamine deficiency since it is added to so many foods in the United States. They also told me that I could just take a B complex vitamin if I was worried. Even after I told them I was hardly eating because I felt so sick and that when I was eating it was mostly foods like processed toast, frozen chicken nuggets, cans of soup, and other things of that nature, they still dismissed the idea of thiamine deficiency.

May-Thurner Syndrome

On top of all of the debilitating POTS and neurological symptoms, throughout my time on birth control I had complained to my GYN about persistent left sided pelvic pain. It felt like my labia was swollen and at times like something was bulging into my pelvic area. In 2019, I had a CT scan of my abdomen and pelvis done due to some GI symptoms I was having. An incidental finding on it was suspicion for pelvic congestion syndrome (PCS). The report stated that I had very prominent peri-uterine vessels and a dilated left gonadal vein. I took these results to my GYN at the time who clearly stated “PCS is a fake diagnosis and you don’t need to do anything with that.” Since I was young, in my early 20s, I didn’t take it too seriously. Again as time went on, I continued to have the pain and over the years my GYN kept changing my birth control and mentioned endometriosis and small ovarian cysts as possible causes. The birth control would help a little bit for a while but then I would have irregular bleeding and the pain would always come back. It wasn’t until after I took the Depo shot and came off of the hormones that things became worse.

I began to have severe left pelvic pain that persisted for months. I had transvaginal ultrasounds every 6 to 8 weeks to monitor recurring small cysts that they swore were not the cause of my pain. I was tested for PCOS and was negative for that too. It wasn’t until the end of 2022, that I had another transvaginal ultrasound and this one read as having a hydro-salpinx. I had a new GYN at the time who referred me to get an MRI done of my pelvis. This MRI came back as also showing “likely hydro-salpinx” on the left. Since I was having such severe pain, I was referred to a GYN surgeon who said in extremely painful cases it is recommended to take out the tube and it was pretty much nonfunctional when it was as swollen as mine. I elected to proceed with the surgery, as the pain was so extreme. Funny enough, after the surgery when the pathology came back there was no hydro-salpinx and my surgeon said he did not see any endometriosis when he performed the laparoscopy. He said he believed my MRI may have been misread since he did not see any indication of hydro-salpinx during the procedure.

As if that wasn’t enough, after the procedure I had a severe neurological reaction to the scopolamine patch they put on me during the procedure. I had so much testing for this. I was even in the hospital for 5 days with what they thought was “scopolamine patch withdrawal” even though I only had the patch on for 3 days like they told me to wear it.

Fed up and still in pain, I let it go for a few more months thinking it was just “scar tissue” from the surgery or some other easy explanation. It wasn’t until my POTS doctor recommended me to wear an abdominal binder/compression device around my stomach that things worsened so much that I was forced to figure this out. I began having severe left pelvic, hip, and leg pain after wearing this device for only 3 days. I went to the ER because the pain was so bad, but they could only find a small ovarian cyst on my left ovary. They didn’t even consider doing any other work-up. I was then sent to an orthopedic to look at my hip and back to my GYN. Neither could really give an explanation for this pain. Finally enough was enough, I went to a vascular doctor on my own accord to get this PCS, which no one seemed to take seriously, looked at.

At the vascular surgeon’s office, they did a vascular scan of my pelvis and abdomen and were quickly shocked to find that my left iliac vein was almost completely compressed causing my peri-uterine vessels to get almost no blood flow. They diagnosed me with something called May-Thurner Syndrome and said that they usually only see severe cases like mine in women who have had “5 or 6 babies.” I was 28 at the time with one previous ectopic pregnancy many years ago. They quickly scheduled me to get a stent of my left iliac vein placed, as my left leg had begun swelling bigger than my right due to the limited blood flow.

On the day of surgery, my left leg was 2 inches bigger than the right and I was in severe pain. They did a venogram with internal ultrasound and were able to tell me my left iliac vein was 85% compressed. So basically, I was getting no flow through it and hardly any return through that vein up to my heart. They also informed me that the birth control was probably masking the problem but also could have been worsening it when I was on estrogen-containing birth control. They said I was extremely lucky that I did not develop a blood clot, especially when I had taken Beyaz for several years. Now, I am on blood thinners for several months post stent, while waiting to see if this helps with my POTS symptoms at all. So far, I have not seen any improvement except that my leg is no longer swollen.

Still Seeking Answers

I don’t know if thiamine deficiency could be causing my issues, but I have not received any answers other than POTS and my recently discovered May-Thurner Syndrome. I have seen so many doctors and spent so much money with no improvement in my health. This all severely worsened after I took the Depo shot. I have been unable to work for months, was bed bound for a long time, and was completely unable to eat during the worst of my symptoms. Now, I am at least able to move around more than I was and leave the house for doctor appointments, but I am still not working and I am still searching for answers. I would like to feel better and get back to some type of semi-normal life.

We Need Your Help

More people than ever are reading Hormones Matter, a testament to the need for independent voices in health and medicine. We are not funded and accept limited advertising. Unlike many health sites, we don’t force you to purchase a subscription. We believe health information should be open to all. If you read Hormones Matter, like it, please help support it. Contribute now.

Yes, I would like to support Hormones Matter. 

Photo by Kelly Sikkema on Unsplash.

This article was published originally on August 14, 2023.

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Notes on Folate Carriers, Anti-Folate Medications, and Thiamine Deficiency

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Folate Carriers, Anti-Folate Medications, and Thiamine Deficiency

A few years back, I wrote a paper about the anti-folate and anti-thiamine properties of a popular antibiotic called Bactrim. It is also sold under the trade names: Septra, Sulfatrim, Septrin, Apo-Sulfatrim, SMZ-TMP and cotrimoxazole. Bactrim is a formulation that combines two drugs, trimethoprim and sulfamethoxazole. Both drugs block folate, albeit via different mechanisms, but trimethoprim blocks thiamine too. The combination has a number of deleterious effects, not the least of which is the possibility for a drug-induced Wernicke’s encephalopathy.

Today, I would like take a closer look at the relationship between thiamine and folate status as it affects transporter activity. It turns out that there is a lot more to the story than simply the drug’s depletion of critical nutrients. There is an interaction at play that determines the potency of these drugs and the severity of the nutrient depletion. That is, the individual’s nutrient status before taking the drug, to a large extent, may determine its effects.

It makes sense, of course, that the individual’s nutrient status would affect drug response. Poor nutrient status in general would exacerbate any illness and increase the risk frank deficiency and drug-induced mitochondrial damage. Beyond these broad strokes, however, there wasn’t a clear mechanism that would account for why some people become so severely debilitated by certain drugs and while others do not.

With regard to anti-folate drugs, a study done over 20 years ago found that nutrient transporter trafficking and directionality may be related to thiamine status. A caveat, this was a cell culture study using murine cell lines, including leukemia cells, and extrapolation to vivo human, non-leukemia cells is necessary. More recent animal research involving the use of methotrexate in liver cancer demonstrates similar effects, although mechanisms are not discussed. High thiamine status reduces methotrexate uptake. Conversely, methotrexate induces thiamine and folate deficiency (here, here).

Returning to the cell study, thiamine concentrations before exposure to anti-folate drugs appears not only to determine how much of drug is taken up by the cell (low thiamine > more drug uptake) but also the degree to which folate and thiamine are depleted. In low thiamine states, the potency anti-folate drug like methotrexate, and I suspect other anti-folate drugs that were not tested, is magnitudes greater than with higher thiamine concentrations. What I found particularly interesting, was that this effect was mediated largely by changes in the folate transporter (RFC1), which controlled  not only the influx of folates and anti-folate drugs, but also, the efflux of thiamine pyrophosphate (TPP), the activated form of thiamine. The researchers found that when thiamine was low, more drug was taken up by the cell, while more TPP was spit out of the cell, essentially causing an intracellular deficiency of both folate and thiamine. Of note, a less active form of thiamine, thiamine monophosphate (TMP), appeared to be trafficked into the cell in exchange of the more active TPP.

Since a good portion of the population is likely low in thiamine, this means the potential damage by these drugs is significant and under-recognized. Might some of the adverse effects associated with these medications be related to either folate and/or thiamine deficiency? Possibly, which means supplementation with these nutrients may help.

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More people than ever are reading Hormones Matter, a testament to the need for independent voices in health and medicine. We are not funded and accept limited advertising. Unlike many health sites, we don’t force you to purchase a subscription. We believe health information should be open to all. If you read Hormones Matter, like it, please help support it. Contribute now.

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Photo by Aaron Burden on Unsplash.

This article was published originally on March 28, 2023. 

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Childhood Seizures Precipitated by Thiamine Deficiency

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seizures thiamine deficiency

The seizures started for the first time with a frightened expression in my then 4 year old precious daughter’s eyes, and I thought she had seen a ghost. She held her chest, looked wide eyed, ran over to me and buried her head into my stomach where I felt her heart beating hard and fast. It lasted a few seconds and then I reassured her and on went on. She said it was like strong butterflies in her belly. It also was the morning after her lovely grandparents left after a 3-month visit back to Ireland and we were all very sad.

For approximately one year prior to this, she had been complaining of stomach aches, top and bottom, occasionally under her ribs. She had reduced appetite and a very worrying paleness. She also was very car-sick so we had to prepare for longer journeys. I had been to the ER after Christmas lunch when she had terrible stomach pain. She was checked to be ‘fine’ but I was advised to see a pediatrician to follow up.

Panic Attacks or Seizures?

Basic blood tests confirmed she was in ‘great health’, with the only thing they found in a stool test being h-pylori. So it was their opinion that she wasn’t having seizures but instead must be anxiety/panic attacks as she is a sensitive child. I was always skeptical, but in absence of any other data, we waited a long time for the referred psychologist. After 3 sessions, I realized they had no intel and were chasing the wrong dragon. I kept saying she looked somewhat unwell. The seizures were happening quite infrequently then, perhaps one episode a month, or every 2-3 weeks, but then when she started kindergarten they ramped up a little more frequently. She would stop, look to be catching her breath, hand twisting for a few seconds and then it was over. I thought it was a reaction to the food they fed her there that we didn’t have at home, or a recent childhood vaccination or that she hated being away from me there. I also noticed she reacted with bad behavior and potential episodes after certain foods- e.g. ice cream especially and any food dyes/flavors. So our already healthy diet went up a notch to exclude these. I also did gluten and dairy free on advice from naturopaths. It was strict and sad.

Then these episodes changed to resemble a seizure more directly, not a panic attack. I got rid of the useless pediatrician who was actively gaslighting me to try to minimize the symptoms or their own incompetence and I demanded to see a neurologist. It was again a very long waiting game. When the day came, we were very nervous but were looking forward to some potential answers. He was a neurologist at a prominent Children’s Hospital, so I had high expectations. I still had many questions and areas to workshop but after he ran through my extensive notes and a video I took, he said ”let me stop you, She has epilepsy and ‘NOTHING YOU DO WILL EVER MAKE A DIFFERENCE. She will need medication for life and if that fails an operation”. This was also via video link, as it was during a Covid lockdown. No physical examination and a script sent in the mail. I accepted these, as I know you don’t refuse unless you want trouble, but my intention was to never band-aid or experiment, especially not with a young child and my family’s history of sensitivity to medication. Thank god he lied so blatantly when he said ”there’s no side effects from the anti-seizure meds” to know we weren’t dealing with the truth or someone who could be trusted.

We did another two MRIs, but they were clear. They wanted a third with dye contrast but I refused that and as I learned more about her case, know why I felt so strongly about that.

A Parade of Doctors

We embarked on the alternative/functional medicine pathway, as that is something I am familiar with. I didn’t realize how challenging it was going to be. We went from one to the other. I was constantly seeking experts who possibly knew more than the last. I needed help to decode this horror. I know a healthy child doesn’t get a whisper of issues that then progress to a scream over years for no reason.

With each new practitioner, we did another test. This included blood tests, stool test, hair tests, OAT test, Pyrrole and extensive Genetic testing. She was found to have higher copper ceruloplasmin to be treated simply with zinc, which was always met with a seizure so we stopped that. She had high vitamin D and B12, but another test found that potentially wasn’t a true representation. It can be in the blood reading but not necessarily in her cell. This is where you really throw your hands-up and say what chance do we have if some test results can also be falsely represented!!!!!

The genetic testing provided the best clue that we weren’t dealing with an easy case- she had heterozygous compound MTHFR, and many other compromising genes that are not ideal on many pathways, especially detox. This also got me remembering how I haven’t felt optimal for years. I put it down to extreme stress with my daughter. A huge thing I always wanted to understand was why I was so incredibly sick with Hyperemesis Gravidarum the entire pregnancy with her. I have always believed this had to have impacted her somewhere but could never nail down a connection.

After 5 naturopaths and numerous consults from other medical professionals, listening to one bogus diet restriction after the next, many different versions of expensive supplements that basically all triggered her. Nothing was working. She was having seizures weekly or more particularly is she was sick or overly stressed. The closest theory I could deduce of was a type of MCAS or histamine intolerance and the symptoms were:

  • Crying out prior
  • Frequently occurring in sleep waking her bolt upright
  • Hyperventilation/can’t get air
  • Big scared eyes
  • Drooling, disorientated
  • Body shaking, head was twisting hard to the side like dystonia, arms curled, torso completely contorted.

This would last for about 30 sec-1 min. The horror of witnessing this is imprinted on my soul forever. She began to lose balance so we would have to grab and hold her and I would blow hard in her face to try to get it to finish. It started to become dangerous if we weren’t around to catch her.

I also simultaneously worked back one item at a time to try to fix every variable I could, including environmental. There was a mold spot in our house in the room she slept in the bathroom. It took a long time to get repaired, I pondered about that exposure and if the builder actually fixed the leak properly. Our awful neighbor had smoky barbeques numerous times a week on the fence-line using building offcut wood. The smoke permeated our house. We sold our house to see if that made a difference and moved to the country with my parents’ house in the green clean air.

Thiamine and Riboflavin Deficiencies With Genetic Underpinnings

I finally found a practitioner trained in epigenetics with a naturopath background as I wanted someone like Ben Lynch. His YouTube videos were the only things that made sense to break down a complex health issue. She was a blessing and truly eclipsed the level of detail of knowledge (and empathy) by all others. She looked at the OAT test (shown to 5 people previously) and saw immediately she had very high lactic acid and some other markers indicating thiamine deficiency, critically followed by a riboflavin (B2) deficiency. She advised to not give a B complex and work through one at a time.

When we tried to treat this with thiamine and a B2 capsule. I am sure she had a paradoxical reaction as she had 8 seizures in the night. It was horrifying. I wanted to abort this plan like so many other failed attempts, as I never prolong anything that’s not showing positive traction, but something told me to break it down and do one step at a time. I went back into her genetics myself and looked at the thiamine related genes. She had homozygous defects in a key thiamine transporter (SLC19A2) and an enzyme (thiamine pyrophosphokinase – TPK1) that turns free thiamine into its bioactive form thiamine pyrophosphate. She also had SNPs in several other key thiamine genes, in addition to SNPs in several other mitochondrial genes.

I also came across and watched Elliot Overton’s Thiamine videos on YouTube and how to correctly dose-up. I also read many insightful articles on the Hormones Matter website. I tried again with low dose of b1 (about 5mg), some magnesium and potassium-coconut water. The seizures, in the midst of a horrible flare, stopped immediately and didn’t return for over 2 months. I dosed twice a day and worked up to 50mg of thiamine in total, which is where she is currently. She also got much better color in her face. It truly felt like a miracle!

What Else Are We Missing?

The miracle, however, ended and the seizures have been creeping back in and I’m not sure why. They seem not quite as severe in presentation, however they still occur about once a week to every 2 weeks. I need to understand why and how to help her as my intuition screams at me to find the answer, and quick! She is now 8 years old and I am struggling to comprehend any more of her childhood being stolen.

We Need Your Help

More people than ever are reading Hormones Matter, a testament to the need for independent voices in health and medicine. We are not funded and accept limited advertising. Unlike many health sites, we don’t force you to purchase a subscription. We believe health information should be open to all. If you read Hormones Matter, and like it, please help support it. Contribute now.

Yes, I would like to support Hormones Matter. 

Photo by Noah Silliman on Unsplash

This article was published originally on September 11, 2023. 

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