thiamine deficiency - Page 5

Sleep Requires Energy

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sleep requires energy

It is widely believed that almost no calories are used during sleep. That is incorrect: while the body rests during sleep and energy consumption is not high, it is a long way from zero. A convenient way to measure energy use is known as the “metabolic equivalent” (ME). This is defined as the rate of energy used by a person sitting and awake, the “resting metabolic rate”.  A person riding a bicycle may be using five MEs; a runner, nine or more. A sleeping person uses about 0.9 MEs, so we burn calories when we are asleep about 90% as fast as while sitting on the couch watching television.

Energy conservation is important in sleep, but it’s expenditure is still required. It has been proposed that sleep is a physiological adaptation to conserve energy but little research has examined this proposed function. In one study, the effects of sleep, sleep deprivation and recovery sleep on the whole-body, total daily energy expenditure was examined in seven healthy participants aged 22+/-5 years.  The findings provided support for the hypothesis that sleep conserves energy and that sleep deprivation increases total daily energy expenditure. I read somewhere that an enthusiastic young astronomer decided that sleep was unnecessary and used his telescope for 13 nights without sleeping during the day. He became extremely ill, thus showing the importance of sleep in survival. The recognition that sleep is one of the foundations of athletic performance is vital.

Research in the general population has highlighted the importance of sleep on neurophysiology, cognitive function and mood. In a post on Hormones Matter, we reported several young people who had a post Gardasil vaccination crippling condition that turned out to be due to thiamine deficiency. All of them had been exceptional athletes and students before the vaccination. We concluded that the brain energy requirement for exceptional people put them at greater risk of succumbing to stress if their capacity for MEs was limited, either for genetic or nutritional reasons. We assumed that their thiamine deficiency before vaccination was marginal and either asymptomatic or producing trivial symptoms ascribed to other “medically more acceptable” causes.  The stress of the vaccination required an energy dependent adaptive response that precipitated fully symptomatic thiamine deficiency.  You might say that they were “weighed in the balance and found wanting” as the proverb says.

The Stages of Sleep

Sleep is a complicated process. The first sensation is known as “sleep latency” and registers the time taken from eye closure to falling asleep. The sleep cycle is then divided into five stages, each cycle lasting approximately 90-120 minutes. Stage one is known as light sleep. In stage 2 the brain is resting the parts used when awake. Stages 3 and 4 are deeply restorative. Stage V is known as rapid eye movement (REM) sleep and may be the most important part. Movement of the eyes behind closed lids is observed. The autonomic nervous system is activated for unknown reasons. It is in this stage when we dream and most sleep disorders occur.

Circadian Rhythm

The word circadian means “about 24 hours”. The circadian clock is a complex, highly specialized network in the brain that regulates its day/night metabolism and is a key for metabolic health. It is modulated by behavioral patterns, physical activity, food intake, sleep loss and sleep disorders. Disruption of this clock is associated with a variety of mental and physical illnesses and an increasing prevalence of obesity, thus illustrating that it is dependent on energy balance (production/consumption). Reduced sleep quality and duration lead to decreased glucose tolerance and insulin sensitivity, thus increasing the risk of developing type 2 diabetes. In other words there is a close link between circadian rhythm and available energy . I have seen patients who were unable to take the night shift at work because they were unable to adapt. The increase in obesity has been paralleled by a decline in sleep duration but the potential mechanisms linking energy balance and the sleep/wake cycle are not well understood. An experiment was reported in 12 healthy normal weight men. Caloric restriction significantly increased the duration of deep (stage 4) sleep, an effect that was entirely reversed upon free feeding.

Sleep Apnea

This condition is fairly common in the United States and is probably generally fairly well-known by most people. The patient stops breathing during sleep and may repeatedly awaken with a start. The disease was discovered because a woman reported that her husband kept waking up with a start because “he was affected by an evil spirit”. Fortunately, the physician took her seriously and it led to the studies that determined its cause. Many patients with, or at risk of, cardiovascular disease have sleep disordered breathing (SDB). These can be either obstructive because of intermittent collapse of the upper airway, or central because of episodic loss of respiratory drive. SDB is associated with sleep disturbance, hypoxemia, hemodynamic changes and sympathetic activation. Brainstem dysfunction combined with heart disease is the hallmark of the thiamine deficiency disease, beriberi.

What that means is that there are two types of sleep apnea. In the obstructive type, the tongue falls back into the pharynx and blocks the airway. In the one where there is loss of respiratory drive, the centers in the brain stem are compromised. It is these centers that completely take over the control of breathing when we are unconscious as in sleep. If their supervisory mechanisms fail, breathing ceases. Carbon dioxide concentration increases and stimulates the brain controls that restart breathing. Occasionally these mechanisms are so sick that breathing does not restart. Hence a form of  nocturnal sudden death follows. When we are awake we can override these centers and control our breathing voluntarily. Obesity and obstructive sleep apnea have a reciprocal relationship depending on the regulation of energy balance. When I was in practice I treated several patients with sleep apnea using large doses of thiamine. Because of this I hypothesized that the association of dysautonomia with so many different diagnoses is because of loss of oxidative efficiency and subsequent disorganization of controls that are mediated through the limbic system and brainstem. I came to the conclusion that energy deficiency in the brain was the core issue.

I recently had a letter from the parents of a then five-year-old child who came under my care 35 years ago. She has a genetically determined disorder that affects energy balance and I had treated her by dietary restriction and providing non-caloric nutrients. They informed me that she was doing very well. The condition is known as Prader Willi syndrome, a terminology that indicates that nothing was known about its cause when it was initially described. Today, 10 studies have provided evidence that total energy, resting energy,  sleep energy and activity energy expenditure are all lower in individuals with this syndrome. Dietary discipline and nutritional supplementation had paid off.

An Explanatory Analogy

You may think that comparing the human body with an automobile is manifestly absurd, but the principles that I will use in the analogy are simple.

Fuel

First of all, both use fuel: gasoline is the fuel for a car, but it must be calibrated to the design of the engine, giving rise to the gasoline choices at the pump. Although different forms of human food may be compared to gasoline choices, the primary fuel for our cells is glucose and this is particularly true for the brain. Glucose, a carbohydrate, can be synthesized in the body from other components in the diet and different diets are sometimes used therapeutically. Unlike the car, the human body must derive its “spark plug”  from the food and is the basic reason why organic, naturally occurring, food is a necessity. The food industry cannot imitate or replace it.

Engine

The engine in a car burns gasoline to create energy. It requires spark plugs to ignite the gasoline and waste gases are eliminated through an exhaust pipe.

Every cell in the human body has an “engine”. Without going into details this is known as the Krebs cycle (named after its discoverer). Its objective is to produce energy and glucose has to be “ignited” (oxidized). The oxidation process, while releasing energy, gives rise to carbon dioxide (the “ash”) that is eliminated in the breath. Energy is stored in an eletrochemical form known as adenosine triphosphate (ATP).The nearest parallel would be a battery. It releases an electrical form of energy that is then used for function. Whether we like to recognize it or not, we are electrochemical machines and the only way that we can preserve or retrieve health is by furnishing the complex of ingredients that enable food to be converted into energy.

To continue the analogy, when you put your car in the garage and turn off the ignition the car is technically “dead”. Obviously, we are unable to do that with the human body, but let us make a simple comparison. Supposing for some reason it was desirable to keep the car “alive” when it was in the garage. The engine would continue to run and it would be consuming fuel. Because the body requires energy to remain alive, the “engines” have to continue running, even when we are asleep. This does make sense for the consumption of energy when we are asleep———it keeps us alive !

Transmission

The energy developed from burning gasoline has to be transmitted to the wheels in order to produce the normal function of the car, which is the ability to move. The transmission is a series of levers that are interconnected.

The same is true in the human body, but it is biochemical in nature. A series of energy consuming enzymes use the protein, fat and carbohydrate to build the diversity of tissues that make up the body. Throughout life, cells are destroyed and replaced, so this is a continuous process of energy consumption and repair. Every physical movement, every thought and emotion, consumes energy. Like the transmission in the car, the energy produced by the citric acid cycle engine is consumed in every movement of the body, every thought occurring in the brain and every emotion.

Chassis

The body of a car is just a container on wheels designed to carry around human beings. Its sole function is to move and until we have driverless cars a human being must be the driver.

In comparison, the body of a human being is merely a chassis that carries the brain around. It might be said that the brain can be compared with the car driver and every function of the body is under the command of the brain. Another analogy that I have used is an orchestra where the brain is the conductor and the organs are banks of instruments in which the cells come under the command of the conductor.

Putting It All Together

The 2019 Nobel prize has just been awarded to three scientists who have discovered how our body cells respond to low concentrations of oxygen (hypoxia). The reaction of medical scientists is very positive since this discovery will certainly be applied to the treatment of many diseases. Apparently scientists are already trying to find drugs that will influence this effect. For example, it has long been known that hypoxia will introduce inflammation. My forecast is that the use of nutrients will often correct the genetics by epigenetic mechanisms and this is already under way.

I found the Nobel prize extremely interesting because of a little-known phenomenon that was described by the early investigators of the vitamin B1 deficiency disease, beriberi. They had found in this disease that the arterial concentration of oxygen was low while the venous concentration was relatively high. Arterial blood carries oxygen from the lung to all the tissues of the body. It has to be unloaded into the cells that then use it to produce energy. The venous blood then returns to the lung to be loaded again with oxygen. A relatively low arterial oxygen reflects an inadequate loading at the lung tissues, while a relatively high venous oxygen indicates poor utilization by the cells to which it is delivered. This means that thiamine (vitamin B1) is an essential catalyst in the delivery of oxygen to the tissues. Its deficiency induces gene expression similar to that observed in hypoxia and has been referred to as a cause of pseudo-hypoxia (false hypoxia).

The heading of this article is that sleep requires energy, but I am making the case that being alive and well simply means that oxygen is being consumed efficiently, as long as the “blueprint” of DNA is healthy. It strongly suggests that hypoxia and/or pseudo -hypoxia are the underlying causes of disease and may explain why thiamine and its derivative are such important therapeutic agents.

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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 October 14, 2019. 

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Beriberi: The Great Imitator

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Because of some unusual clinical experiences as a pediatrician, I have published a number of articles in the medical press on thiamine, also known as vitamin B1. Deficiency of this vitamin is the primary cause of the disease called beriberi. It took many years before the simple explanation for this incredibly complex disease became known. A group of scientists from Japan called the “Vitamin B research committee of Japan” wrote and published the Review of Japanese Literature on Beriberi and Thiamine, in 1965. It was translated into English subsequently to pass the information about beriberi to people in the West who were considered to be ignorant of this disease. A book published in 1965 on a medical subject that few recall may be regarded in the modern world as being out of date and of historical interest only, however, it has been said that “Those who do not learn history are doomed to repeat it”. And repeat it, we are.

Beriberi is one of the nutritional diseases that is regarded as being conquered. It is rarely considered as a cause of disease in any well-developed country, including America. In what follows, are extractions from this book that are pertinent to many of today’s chronic health issues. It appears that thiamine deficiency is making a comeback but it is rarely considered as a possibility.

The History of Beriberi and Thiamine Deficiency

Beriberi has existed in Japan from antiquity and records can be found in documents as early as 808. Between 1603 and 1867, city inhabitants began to eat white rice (polished by a mill). The act of taking the rice to a mill reflected an improved affluence since white rice looked better on the table and people were demonstrating that they could afford the mill. Now we know that thiamine and the other B vitamins are found in the cusp around the rice grain. The grain consists of starch that is metabolized as glucose and the vitamins essential to the process are in the cusp. The number of cases of beriberi in Japan reached its peak in the 1920s, after which the declining incidence was remarkable. This is when the true cause of the disease was found. Epidemics of the disease broke out in the summer months, an important point to be noted later in this article.

Early Thiamine Research

Before I go on, I want to mention an extremely important experiment that was carried out in 1936. Sir Rudolf Peters showed that there was no difference in the metabolic responses of thiamine deficient pigeon brain cells, compared with cells that were thiamine sufficient, until glucose (sugar) was added. Peters called the failure of the thiamine deficient cells to respond to the input of glucose the catatorulin effect. The reason I mention this historical experiment is because we now know that the clinical effects of thiamine deficiency can be precipitated by ingesting sugar, although these effects are insidious, usually relatively minor in character and can remain on and off for months. The symptoms, as recorded in experimental thiamine deficiency in human subjects, are often diagnosed as psychosomatic. Treated purely symptomatically and the underlying dietary cause neglected, the clinical course gives rise to much more serious symptoms that are then diagnosed as various types of chronic brain disease.

  • Thiamine Deficiency Related Mortality. The mortality in beriberi is extremely low. In Japan the total number of deaths decreased from 26,797 in 1923 to only 447 in 1959 after the discovery of its true cause.
  • Thiamine Deficiency Related Morbidity. This is another story. It describes the number of people living and suffering with the disease. In spite of the newly acquired knowledge concerning its cause, during August and September 1951, of 375 patients attending a clinic in Tokyo, 29% had at least two of the major beriberi signs. The importance of the summer months will be mentioned later.

Are the Clinical Effects Relevant Today?

The book records a thiamine deficiency experiment in four healthy male adults. Note that this was an experiment, not a natural occurrence of beriberi. The two are different in detail. Deficiency of the other B vitamins is involved in beriberi but thiamine deficiency dominates the picture. In the second week of the experiment, the subjects described general malaise, and a “heavy feeling” in the legs. In the third week of the experiment they complained of palpitations of the heart. Examination revealed either a slow or fast heart rate, a high systolic and low diastolic blood pressure, and an increase in some of the white blood cells. In the fourth week there was a decrease in appetite, nausea, vomiting and weight loss. Symptoms were rapidly abolished with restoration of thiamine. These are common symptoms that confront the modern physician. It is most probable that they would be diagnosed as a simple infection such as a virus and of course, they could be.

Subjective Symptoms of Naturally Occurring Beriberi

The early symptoms include general malaise, loss of strength in knee joints, “pins and needles” in arms and legs, palpitation of the heart, a sense of tightness in the chest and a “full” feeling in the upper abdomen. These are complaints heard by doctors today and are often referred to as psychosomatic, particularly when the laboratory tests are normal. Nausea and vomiting are invariably ascribed to other causes.

General Objective Symptoms of Beriberi

The mental state is not affected in the early stages of beriberi. The patient may look relatively well. The disease in Japan was more likely in a robust manual laborer. Some edema or swelling of the tissues is present also in the early stages but may be only slight and found only on the shin. Tenderness in the calf muscles may be elicited by gripping the calf muscle, but such a test is probably unlikely in a modern clinic.

In later stages, fluid is found in the pleural cavity, surrounding the heart in the pericardium and in the abdomen. Fluid in body cavities is usually ascribed to other “more modern” causes and beriberi is not likely to be considered. There may be low grade fever, usually giving rise to a search for an infection. We are all aware that such symptoms come from other causes, but a diet history might suggest that beriberi is a possibility in the differential diagnosis.

Beriberi and the Cardiovascular System

In the early stages of beriberi the patient will have palpitations of the heart on physical or mental exertion. In later stages, palpitations and breathlessness will occur even at rest. X-ray examination shows the heart to be enlarged and changes in the electrocardiogram are those seen with other heart diseases. Findings like this in the modern world would almost certainly be diagnosed as “viral myocardiopathy”.

Beriberi and the Nervous System

Polyneuritis and paralysis of nerves to the arms and legs occur in the early stages of beriberi and there are major changes in sensation including touch, pain and temperature perception. Loss of sensation in the index finger and thumb dominates the sensory loss and may easily be mistaken for carpal tunnel syndrome. “Pins and needles”, numbness or a burning sensation in the legs and toes may be experienced.

In the modern world, this would be studied by a test known as electromyography and probably attributed to other causes. A 39 year old woman is described in the book. She had lassitude (severe fatigue) and had difficulty in walking because of dizziness and shaking, common symptoms seen today by neurologists.

Beriberi and the Autonomic Nervous System

We have two nervous systems. One is called voluntary and is directed by the thinking brain that enables willpower. The autonomic system is controlled by the non-thinking lower part of the brain and is automatic. This part of the brain is peculiarly sensitive to thiamine deficiency, so dysautonomia (dys meaning abnormal and autonomia referring to the autonomic system) is the major presentation of beriberi in its early stages, interfering with our ability for continuous adaptation to the environment. Since it is automatic, body functions are normally carried out without our having to think about them.

There are two branches to the system: one is called sympathetic and the other one is called parasympathetic. The sympathetic branch is triggered by any form of physical or mental stress and prepares us for action to manage response to the stress. Sensing danger, this system activates the fight-or-flight reflex. The parasympathetic branch organizes the functions of the body at rest. As one branch is activated, the other is withdrawn, representing the Yin and Yang (extreme opposites) of adaptation.

Beriberi is characterized in its early stages by dysautonomia, appearing as postural orthostatic tachycardia syndrome (POTS). This well documented modern disease cannot be distinguished from beriberi except by appropriate laboratory testing for thiamine deficiency. Blood thiamine levels are usually normal in the mild to moderate deficiency state.

Examples of Dysfunction in Beriberi

The calf muscle often cramps with physical exercise. There is loss of the deep tendon reflexes in the legs. There is diminished visual acuity. Part of the eye is known as the papilla and pallor occurs in its lateral half. If this is detected by an eye doctor and the patient has neurological symptoms, a diagnosis of multiple sclerosis would certainly be entertained.

Optic neuritis is common in beriberi. Loss of sensation is greater on the front of the body, follows no specific nerve distribution and is indistinct, suggestive of “neurosis” in the modern world.

Foot and wrist drop, loss of sensation to vibration (commonly tested with a tuning fork) and stumbling on walking are all examples of symptoms that would be most likely ascribed to other causes.

Breathlessness with or without exertion would probably be ascribed to congestive heart failure of unknown cause or perhaps associated with high blood pressure, even though they might have a common cause that goes unrecognized.

The symptoms of this disease can be precipitated for the first time when some form of stress is applied to the body. This can be a simple infection such as a cold, a mild head injury, exposure to sunlight or even an inoculation, important points to consider when unexpected complications arise after a mild incident of this nature. Note the reference to sunlight and the outbreaks of beriberi in the summer months. We now know that ultraviolet light is stressful to the human body. Exposure to sunlight, even though it provides us with vitamin D as part of its beneficence, is for the fit individual. Tanning of the skin is a natural defense mechanism that exhibits the state of health.

Is Thiamine Deficiency Common in America?

My direct answer to this question is that it is indeed extremely common. There is good reason for it because sugar ingestion is so extreme and ubiquitous within the population as a whole. It is the reason that I mentioned the experiment of Rudolph Peters. Ingestion of sugar is causing widespread beriberi, masking as psychosomatic disease and dysautonomia. The symptoms and physical findings vary according to the stage of the disease. For example, a low or a high acid in the stomach can occur at different times as the effects of the disease advance. Both are associated with gastroesophageal reflux and heartburn, suggesting that the acid content is only part of the picture.
A low blood sugar can cause the symptoms of hypoglycemia, a relatively common condition. A high blood sugar can be mistaken for diabetes, both seen in varying stages of the disease.

It is extremely easy to detect thiamine deficiency by doing a test on red blood cells. Unfortunately this test is either incomplete or not performed at all by any laboratory known to me.

The lower part of the human brain that controls the autonomic nervous system is exquisitely sensitive to thiamine deficiency. It produces the same effect as a mild deprivation of oxygen. Because this is dangerous and life-threatening, the control mechanisms become much more reactive, often firing the fight-or-flight reflex that in the modern world is diagnosed as panic attacks. Oxidative stress (a deficiency or an excess of oxygen affecting cells, particularly those of the lower brain) is occurring in children and adults. It is responsible for many common conditions, including jaundice in the newborn, sudden infancy death, recurrent ear infections, tonsillitis, sinusitis, asthma, attention deficit disorder (ADD), hyperactivity, and even autism. Each of these conditions has been reported in the medical literature as related to oxidative stress. So many different diseases occurring from the same common cause is offensive to the present medical model. This model regards each of these phenomena as a separate disease entity with a specific cause for each.

Without the correct balance of glucose, oxygen and thiamine, the mitochondria (the engines of the cell) that are responsible for producing the energy of cellular function, cannot realize their potential. Because the lower brain computes our adaptation, it can be said that people with this kind of dysautonomia are maladapted to the environment. For example they cannot adjust to outside temperature, shivering and going blue when it is hot and sweating when it is cold.

So, yes, beriberi and thiamine deficiency have re-emerged. And yes, we have forgotten history and appear doomed to repeat it. When supplemental thiamine and magnesium can be so therapeutic, it is high time that the situation should be addressed more clearly by the medical profession.

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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Image: Print ad from 1930; Public Domain.

This article was published originally on November 4, 2015.

Dr. Derrick Lonsdale passed away on May 2, 2024. He will be missed. 

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A Case of Classic Beriberi in America

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A desperate mother sent me an email about her 23-year-old son and it was easy to recognize that this young man had full-blown beriberi. You may or may not know that beriberi is well known as a vitamin B1 deficiency disease. Because the medical profession is convinced that this disease never occurs in America, it is usually not recognized for what it is. He had seen many physicians without success. I want to record the majority of his symptoms to show that they are surprisingly common and are usually ascribed to a “more modern” diagnosis. I have christened beriberi as the “great imitator” and I am sure that the reader will readily recognize the common nature of these symptoms, presented below in the form of a Table. It is important also to understand that these symptoms can occur for other reasons, but thiamine deficiency is widespread.

 

collapsing fatigue confusion
panic attacks loss of balance
blurred vision cluster headaches
hair loss jaundice at birth
infantile colic migraines
poor intestinal motility bloating
severe calf pain joint pains
weakness salt craving
cold extremities chemical sensitivity
POTS severe pain sensitivity

 

I want now to describe some of the features reported by this mother that were extremely important major clues. She described her son, when in good health, as 6’2”,  175 pounds, extremely athletic with “amazing hand-eye coordination and finishing college with high honors”.

As a result of his undiagnosed illness, his weight had dropped to 133 pounds. Because thiamine governs energy metabolism, an intelligent brain consumes a great deal. Of course, compromised energy production can occur for reasons other than thiamine deficiency. But there were very strong clues for beriberi. The mother described how her son

“…went out drinking with friends. The next day he could barely sit up in the car or stand. We were all commenting on why he was having such an extreme hangover”.

Alcohol would certainly exaggerate an existing thiamine deficiency. It is a well-known association. The symptoms were intermittent, rising and falling “for no apparent reason”. For example, she said that he was

“able to play sports, then lose his balance, become weak and complain of blurred vision”.

The reason for this is because the physical activity was demanding energy that could not be supplied because of the thiamine deficiency. He had jaundice at birth, now known to be because of inefficient oxygen utilization. This would indicate poor maternal diet in pregnancy or a genetic mechanism involving thiamine absorption. So-called panic attacks are common in the modern world and are absolute indicators of poor oxygen utilization in the brain. Under these conditions the reflex known as fight-or-flight would be initiated and this is what is being called panic attacks. The blurred vision would go along with this too.

Beriberi Is a Form of Dysautonomia

We have two nervous systems. One maintains what we call willpower and is known as the voluntary system. The other one is known as autonomic and is entirely automatic and outside willpower. This system controls all the organs within the body. It explains why there are so many symptoms involving many parts of the body. This is because of the loss of signaling power between the organs and the brain. A lot of energy is required to run this system and explains why the autonomic nervous system is affected in beriberi. POTS is one variety of dysautonomia. This young man craved salt and that too is a form of dysautonomia is known as cerebral salt wasting syndrome, explaining the natural craving.

Thiamine deficiency beriberi in America

Is There a Help From the Laboratory?

The answer to this is no, as long as physicians refuse to recognize that beriberi is common in America. This unfortunate young man was diagnosed almost certainly as psychosomatic. The disease has a very long morbidity with symptoms shifting up and down according to the state of energy metabolism on a day-to-day, week-to-week and month-to-month basis. The laboratory has to look for it because the standard tests done only provide distant clues. It is the absence of the abnormal results that make it easy to conclude that this is “a psychologic disease”. For example, it was reported that this young man had an elevated vitamin B12 and a mildly elevated CRP. I cannot give the complex details here, but both are peculiarly related to energy metabolism and require understanding in order to fit them into the pattern of diagnostic clues. I have reported these facts elsewhere.

What Is the Hope of Normal Health in This Person?

It stands to reason that the first thing is proper diagnosis and a knowledge of the widespread symptomatology, including their fluctuation. As long as he continues to take alcohol and sugar, he will never get his health back even if he supplements with thiamine. He is in danger of developing the classical brain disease known as Wernicke’s Encephalopathy. This state of the disease almost certainly involves cellular damage that cannot be repaired. It is therefore very urgent to understand the self-responsibility that is required. He has to learn that alcohol is potentially lethal for him. There is undoubtedly a genetic relationship between alcoholism and sugar craving and it is probably true that a search for the genetic relationship would at least be helpful in understanding the nature of this disease.

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.

Image by NoName_13 from Pixabay.

This article was published originally on August 9, 2017. 

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Thiamine Testing in Clinical Practice

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In Thiamine Deficiency in Modern Medical Practice and Threats to Thiamine Sufficiency in the 21st Century, I introduced the concept that thiamine deficiency underlies many common conditions plaguing modern healthcare and identified exposures and mechanisms threatening thiamine stability. In Hyperglycemia and Low Thiamine: Gateways to Modern Disease, I summarized the pattern of metabolic changes associated with modern dietary practices that lead to thiamine insufficiency, hyperglycemia, diabetes, cardiovascular and Alzheimer’s disease. In this document, I will tackle thiamine testing.

Background

As discussed in the previous articles and elsewhere on this website, thiamine is a critical and rate-limiting nutrient for several of the cytosolic and mitochondrial enzymes responsible for the conversion of food into cellular energy or ATP. As such, decrements in thiamine ingestion imperil cell function systemically, leading to the onset, maintenance, and/or exacerbation of a host of illnesses.

Thiamine has a short half-life, 1-12 hours, and absent sufficient and/or regular consumption, thiamine reserves will be depleted entirely within 2-3 weeks. The risk of acute deficiency is common after an extended illness where consumption or absorption is reduced, while excretion or metabolism is increased. This includes any illness where nausea, vomiting, and/or diarrhea are present; where intestinal absorption is compromised, such as with Crohn’s, Celiac, constipation, dysbiosis, or gastric bypass; where excretion is increased such as with diabetes and kidney disease; where fever or the severity of the illness increases the demands of metabolism e.g. hypermetabolic states such as sepsis, burn patients, and in critical care cases more broadly where the metabolic demands of the illness itself and the anti-thiamine qualities of many medications overwhelm thiamine availability. Pregnancy, especially when hyperemesis is involved, should also be considered a hypermetabolic state where thiamine deficiency develops more frequently than recognized and is associated with common complications.

Of the studies that have investigated thiamine deficiency in critical care, the incidence range for deficiency varies by study criteria from 10% to 90% upon admission and increases steadily with each day in the ICU. This suggests that even if the patient is not thiamine deficient upon admission, he/she may become so as time progresses.

The progression to severe thiamine deficiency in the face of critical illness will be expedited if the patient’s premorbid health was challenged by chronic illness that included the use of thiamine-depleting medications, and/or where poor diet and chronic alcohol, drug, or tobacco use were present. Subclinical thiamine deficiency or insufficiency may characterize a majority of patients dealing with chronic illness. It is not well defined, but given the chemistry of thiamine against the backdrop of modern diets and medicines, it is logical to presume that many patients dealing with chronic illness consume insufficient thiamine relative to the demands of their metabolism and are but one crisis away from frank deficiency (see Threats and Hyperglycemia documents for details).

Ideally, the recognition and treatment of thiamine insufficiency would be considered before frank deficiency manifests. Unfortunately, current laboratory testing provides neither guidance on subclinical thiamine deficiency or insufficiency nor consistent definitions of what values constitute frank deficiency. As such, a patient tested at one lab may be considered deficient, while at another, may fall within the normative ranges, even if each lab uses the same methods. Similarly, depending upon the testing equipment and methods, the patient’s thiamine status may be more or less sensitive to recent thiamine intake or other confounding variables that skew the results towards sufficiency when in fact the patient is deficient.

Conventional Methods of Measurement

For clinical purposes, the most important thiamine analyte is thiamine pyrophosphate (TPP), also called thiamine diphosphate (ThDP/TDP). Additional phosphates can be added or subtracted to form thiamine triphosphate (TTP/ThTP) and thiamine monophosphate (TMP/ThMP), which are detectable by different laboratory measures, but as of yet, their utility in the clinic has not been fully extrapolated. It should be noted that the phosphorylation of free thiamine into TPP, requires magnesium and ATP, and so, among the factors that will affect TPP values is magnesium deficiency.

Thiamine may be tested from whole blood, erythrocytes, serum, plasma, and urine. From whole blood, all three derivatives of free thiamine can be obtained. Thiamine pyrophosphate accounts for almost 90% of circulating thiamine, 80% of which, is found in erythrocytes. Free thiamine, TMP, and TTP are found primarily in serum, plasma, and urine.

Whole Blood TPP

Whole blood measures of TPP utilize liquid chromatography-tandem mass spectrometry (LC/MS/MS) or high-performance liquid chromatography (HPLC). In the US, the reference ranges TPP from two major labs, Quest Diagnostics, and LabCorp, are 78-185 nmol/L and 66.5−200.0 nmol/L, respectively. Both use LC/MS/MS. Published reference intervals for whole-blood TPP vary widely across labs, however, from a lower limit of 63–105 nmol/L to an upper limit of 171–229 nmol/L. There is no consensus regarding what value constitutes deficiency and little recognition of what may constitute borderline or insufficient thiamine. Under some conditions, TMP, TTP, and total thiamine values will be reported. There are no consistent reference ranges for these analytes either.

Erythrocyte Tests

Erythrocyte tests derived from whole blood samples may measure TPP directly from isolated erythrocytes, such as with HPLC, or indirectly, such as in the case of the erythrocyte transketolase activation test (ETKA). TPP measured erythrocytes using HPLC requires additional laboratory steps, mostly done for research purposes. Reports suggest that HPLC whole blood TPP and HPLC erythrocyte TPP correlate. Similarly, the research suggests that HPLC whole blood TPP and ETKA tests correspond, but there is much debate regarding which one is more accurate.

Unlike the direct assessment of circulating TPP, the ETKA test measures both basal and thiamine-stimulated activity of the thiamine-dependent enzyme transketolase. Test values are reported as a ratio or percentage of enzyme activation. When thiamine concentrations are sufficient, the addition of thiamine will not activate the transketolase enzyme. When thiamine is insufficient or deficient, transketolase activity will increase proportionately to the deficiency. Higher values correspond with the severity of deficiency.

Although there is no consensus regarding what constitutes deficiency for this test either, the continuum of values supports a gradation of need, which may be more useful clinically, particularly with borderline cases and when clinical symptoms correspond. Accordingly, greater than 17% enzyme activation is indicative of thiamine deficiency clinically whereas experimentally, particularly when comparing the sensitivity of different laboratory tools, >25% activation is considered deficient. It should be noted that the ETKA may correlate better with clinical conditions in thiamine-replete patients but may be problematic in patients with magnesium deficiency or when transketolase protein levels are diminished due to liver disease or diabetes.

The EKTA test was considered the gold standard for 50 years, but it is a time and manpower-intensive test, with a high risk for inter-batch variability. As such, and despite its favorable clinical utility, it has fallen out of favor. Currently, the EKTA test is performed only by research institutions and in a few private labs.

Plasma, Serum, and Urinary Tests

Plasma/serum contains only a small fraction of circulating thiamine relative to the erythrocytes and is sensitive to recent intake. As such, tests using plasma or serum are considered less accurate diagnostically but some labs still offer these tests. The reference range for Quest is 8-30 nmol/L.  More commonly, plasma measures of thiamine are used for research purposes. Similarly, urinary measures of free thiamine, TMP, and other thiamine metabolites are used in research protocols involving excretion rates relative to medication, deficiency states, and/or dietary intake.

Challenge Tests of Old

In the late 1960s, a pyruvic acid challenge test was devised to assess thiamine sufficiency in healthy pregnant and pre-eclamptic women. Much like the testing for gestational diabetes where blood glucose is measured before and after consuming glucose, with the pyruvic acid challenge test, blood pyruvic acid concentrations were measured before and after dextrose ingestion. Pyruvic acid is inversely correlated with thiamine status such that when thiamine is low, pyruvic acid increases.

While healthy women exhibited within range values of pyruvic acid concentrations for both fasted and the dextrose challenged portions of the test, pre-eclamptic women, depending upon the severity of the disease process, showed markedly elevated pyruvic concentrations post challenge. The most severely ill women, those hospitalized, had elevated pyruvic acid both pre and post dextrose challenge. Although, to my knowledge this test has not been used in other populations or for anything other research purposes, it illustrates clearly how thiamine deficiency is a sugar sensitive disease.  Should this type of testing be developed more fully, it could identify pending thiamine deficiency before it becomes testable via other methods.

To Test or Not To Test

Thiamine testing is a complicated topic. On the one hand, laboratory confirmation of thiamine deficiency aids in treatment decisions, but on the other, current testing, such as it is, carries the potential for a high false negative rate and may fail to detect anything but the most severe deficiencies. Since there is no consensus on what constitutes deficiency, much less insufficiency relative to diet, illness, or other metabolic variables that contribute to and precede frank deficiency, thiamine testing in some populations may prove unenlightening. In light of these issues, it is tempting to forego testing altogether and proceed directly to treatment based on clinical symptoms. Insofar as thiamine is a safe and essential, water-soluble nutrient, clinical suspicion may suffice and should suffice in acute cases where time is critical. To the extent that medicine strives to be data-driven, however, regular testing, before and during treatment, in conjunction with symptom tracking, may afford much needed insight on the relative value of thiamine in health and disease and may aid in the expansion and refinement of clinical reference ranges.

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Treating Sensory Processing Disorder in Children

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On Tuesday, August 16, 2016, I read an article in the Wall Street Journal with this title: Treating Children for Sensory Processing Disorder. Since I have treated hundreds of these children, I am posting here some of the facts that I have learned. First of all let me provide some extracts from this article that is all about a diagnosis of “Sensory Processing Disorder” (SPD). The article says that SPD is believed to affect 5% to 16% of children in the United States.

I want to make it clear what we are talking about. This article describes a three-year-old child who, when accompanying his mother to the grocery store would have meltdowns. His mother was quoted as saying “he would literally bite me throughout the grocery store”. An occupational therapist determined that he had SPD: “a condition in which the body and brain have difficulty processing and responding to sensory stimuli in the environment”. The article goes on to say that “some people with SPD are hypersensitive to loud noises or different textured foods. Others may be agitated by the touch of a clothing tag”. The Director of Occupational Therapy (DOT) research at Cincinnati Children’s Hospital Medical Center was reported as saying

Occupational therapists treat dozens of SPD patients every week. It can affect just one sense, such as hearing, touch or taste, or multiple senses. Sensory processing problems can also affect the body’s vestibular system, creating difficulties with balance, or the proprioceptive system, leading to problems with clumsiness and body positioning.

The DOT “has worked with some children with SPD who are academically gifted and don’t have autism or ADHD. It is clear from the article that the method of treatment, entitled “sensory integration”, looks upon SPD as abnormal psychological behavior. This is  in spite of the fact that a professor of radiology and bioengineering at University of California, San Francisco stated that studies showed that children with SPD had less developed white matter mostly in the back of their brain, compared with typically developing children. This posterior region of the brain is where a lot of sensory processing takes place. This is a major clue as we shall see shortly.

Beyond the Bad Parenting Theory of Sensory Processing Disorder

Now I ask you dear reader, is it common sense to claim that this kind of disorder in 5% to 16% of our children is purely psychological from bad parenting, acceptably normal in a young child, or caused by genetic changes? Since the Wall Street Journal article claims that “adults can have SPD”, it is clearly not confined to children. To believe that any of these facts, or all of them together, can result in so much willful behavioral deviation is a reduction to absurdity. It is absolutely certain that Mother Nature never makes that kind of genetically determined mistake in so many individuals.

The article in the Wall Street Journal reports that “a common treatment at Cincinnati Children’s is called sensory integration, involving three sessions a week for about six weeks”. The founder of the STAR Institute for sensory processing disorder in Denver involves an intensive treatment program of some 31-hour sessions nearly every day for several weeks. The cost is about $175 per session.

When I was a consultant pediatrician at Cleveland Clinic Foundation, I saw many children who were referred because of “emotional problems”. The accepted cause at that time (and still is by many pediatricians) was lack of good parenting. In discussions with parents, I found that bad parenting was rare, but lousy diet was common, particularly because of the enormous overload of sugar, often started in infancy. In fact, sugar was used as an inducement to good behavior, not recognizing the fact that the sugar was the cause of the bad behavior in the first place. By doing a blood test on these children I repeatedly found evidence of thiamine deficiency. To me, the extension of the absurdity is that there is no mention at all in this article about the role of nutrition. I have posted a number of articles on this website concerning vitamins, particularly  vitamin B1 (thiamine). I have pointed out many times that overloading the diet with empty calories, particularly from sugar, automatically induces thiamine deficiency relative to the excessive calories. The scientific evidence for this has been known since 1936. Any attempt to depict thiamine deficiency by measuring its blood level in a person eating “empty calories” will be doomed to failure. The concentration of thiamine in the blood is only normal in relation to a normal calorie content of the diet. It is the calorie/thiamine ratio that counts.

Sugar, Thiamine, and SPD

By pointing out to the parents that they had to get rid of the sugar and providing the child with a supplement of thiamine and magnesium, all the symptoms of “psychological misbehavior”, no matter what pretty name was given to it, quickly resolved. For literally a few dollars and cents, this form of treatment is overwhelmingly simple and effective. The “posterior region of the brain where a lot of sensory processing takes place” is peculiarly sensitive to thiamine deficiency. It will affect balance and in its extreme form, can affect brainstem mechanisms where the control of heart rate and breathing is automatically conducted. This is why an excess of sugar is incredibly dangerous, not because the sugar is a poison in its own right, but because of the secondary effect on energy metabolism in that part of the brain that is essential to life itself.

What seems to be poorly understood is that thiamine deficiency produces the same effect in the brain as lack of oxygen and sensory perception becomes exaggerated. Pain is felt more intensely and may give rise to a phenomenon known as “hyperalgesia”(acute pain perception). Sound and light may be so much more perceived that the sufferer puts hands over his ears or closes his eyes, because the perception is offensive. Touch is grossly exaggerated and may even give rise to screaming by the child when being physically examined by a physician. Because of this poor understanding, the behavior of the child is regarded as “psychological”. Under such circumstances a mild injury to an ankle may give rise to severe pain in the leg. It used to be known as “acute sympathetic dystrophy”. The name has been changed to “acute regional pain syndrome” or “complex regional pain syndrome“. Let it be clearly understood that no matter what kind of injury, obvious inflammatory reaction or source of discomfort occurs in the body, the pain is perceived by the brain. If the mechanism of sensory perception is exaggerated, the pain will be more intense.

Conclusion

It is becoming abundantly clear that a diagnosis of sensory integration, ADD, ADHD, OCD and many other diagnostic refinements are not separate diseases at all. Like variations on a symphonic theme in music, the biochemical changes in the brain are responsible for creating the symptomatic expressions on a completely variable basis. It also explains in practical terms why many of the so-called SPD children in the Wall Street Journal article “were unusually gifted”. Like different models of cars with different horsepower, surely the more intelligent brain requires efficient energy metabolism to meet its “gifted” requirements. For those interested in further details of this concept, turn to the post on “Eosinophilic Esophagitis” on this website. There you will find that the unfortunate patient described with this disease was misdiagnosed for many years as psychosomatic. I will go further than this and say that if the symptoms that are commonly represented by changes in brain processing are neglected, and the malnutrition continues, we can expect damaging changes to take place. I would expect this to lead to a whole series of diseases that also go by different diagnostic nomenclatures, Parkinson’s disease, Alzheimer disease and various forms of dementia that represent the end point damage that has accrued over years. Are we collectively insane?

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This article was published originally on August 24, 2016. 

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Hyperglycemia and Low Thiamine: Gateways to Modern Disease

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Thiamine deficiency, hyperglycemia gateway to disease

In Thiamine Deficiency in Modern Medical Practice and Threats to Thiamine Sufficiency in the 21st Century, I introduced the concept that thiamine deficiency underlies many common conditions plaguing modern healthcare and identified exposures and mechanisms threatening thiamine stability. In this document, I will tackle the pattern of metabolic changes associated with the modern dietary practices leading to thiamine insufficiency, and resulting in, and sustaining hyperglycemia.

Hyperglycemia Through a Different Lens

Hyperglycemia, and the metabolic dysfunction it initiates, is a worldwide problem that has reached epidemic proportions. Due in part to overconsumption of sugary foods and in part to decrements in mitochondrial capacity that drive cravings for sugars, hyperglycemia fuels the metabolic derangements underlying obesity, type 2 diabetes, cardiovascular disease, and more recently, research suggests Alzheimer’s disease as well. These interconnected disease processes represent the top leading contributors to morbidity and mortality.

Conventional wisdom attributes these disease processes to over-nutrition and the solutions that follow involve the restriction of calories and/or the medical manipulation of the pathways initiated by hyperglycemia. Admittedly, excess caloric intake is a component, but this nomenclature suggests an overly simplified concept of nutrition; one where all that matters is calories consumed relative to calories burned. This view obfuscates the role of micronutrients in the conversion of these calories/foods into adenosine triphosphate (ATP), the energy source for all cells. It ignores the fact that the aberrant cascades so commonly associated with hyperglycemia, are merely adaptive responses to the lack of micronutrient availability and consequent reduction in ATP. Finally, through this lens, the entirety of the blame for overeating is placed upon the individual.

In reality, while the initial choices that precipitated the hyperglycemia may have been the individual’s responsibility, once these patterns become entrenched molecularly, the resulting decline in ATP drives the cravings for high-calorie foods to compensate. In a very real way, these patients are starving despite sufficient or even excessive caloric intake. It is high-calorie malnutrition, but malnutrition nevertheless. Viewed from perspective, hyperglycemia is not a disease of excess, per se, but rather, one of deficiency. As such, the opportunities for treatment are expanded beyond the typical trend to reduce, block, or otherwise override a particular pathway, and shifted towards a rebalancing of metabolic health. Here, the question is not so much which pathways should be blocked to stave off the associated deleterious effects of hyperglycemia, but rather, what does the patient need to more effectively metabolize foods into energy? What is missing from his/her diet that will reduce the body’s drive for sugars as its primary energy source? In other words, what does he or she need to be healthy?

To answer those questions, one has to look more closely towards bioenergetics and ask what micronutrients are needed to convert consumed foods into ATP and whether or not the patient’s diet provides those nutrients. Research suggests that the energy metabolism enzymes from the cytosol through the mitochondria require at least 22 micronutrients to utilize the macronutrients from consumed foods to produce ATP. Many of these micronutrients are in short supply with high carbohydrate diets (see Threats for details). Thiamine is top among them, and because of its gateway role in energy metabolism, thiamine insufficiency is a significant contributor to the disease processes currently attributed to hyperglycemia.

Thiamine, Sugar, and Energy Metabolism

Thiamine is a required and rate-limiting co-factor to five enzymes involved in energy metabolism, including those at the entry points for the glucose, fatty acid, and amino acid pathways (transketolase, pyruvate dehydrogenase complex [PDH], 2-Hydroxyacyl-CoA lyase [HACL], and branched-chain alpha-keto acid dehydrogenase [BCKAD] and alpha ketoglutarate dehydrogenase [a-KDGH]. Insufficient thiamine leads to poor glucose handling resulting in hyperglycemia. It also induces poor protein and fatty acid metabolism resulting in the elevated branch-chain amino acids and dyslipidemias common to patients with hyperglycemic metabolic syndrome.

Conversely, high carbohydrate diets increase the demand for thiamine, which, if left unchecked, ultimately leads to thiamine deficiency, hyperglycemia, disturbed protein, and fatty acid metabolism. In healthy, thiamine-sufficient adults, high carbohydrate consumption results in a significant reduction of mean plasma thiamine concentrations in just over three weeks. Over the longer term, a high carbohydrate diet initiates many changes in thiamine and energy metabolism that ultimately result in reduced thiamine availability, higher circulating glucose, and poor energy metabolism. Thus, whether by cause or consequence, low thiamine and hyperglycemia are inextricably intertwined. One eventually leads to the other.

Altered Metabolism and Mechanisms of Damage

Under normal glycemic conditions and where thiamine is sufficient, excess sugars from glycolysis are shuttled through the pentose phosphate pathway via the thiamine-dependent enzymes transketolase to PDH and onward through the mitochondria. Under conditions of high carbohydrate intake/low thiamine, however, these sugars are diverted away from the primary metabolic pathways used for ATP production, inducing a net decline in ATP, and away from the synthesis of ribonucleotides and NADPH, substrates for RNA/DNA, and fatty acid metabolism and ROS detoxification respectively, to secondary metabolic pathways, specifically, the polyol/sorbitol, hexosamine, diacylglycerol/PKC, advanced glycation end product (AGE) pathways. Research suggests the upregulation of these pathways underlie the macro-and microvascular cell damage attributed to hyperglycemia, related cardiovascular and neural damage, while the decrements in ATP drive the general metabolic dysfunction associated with obesity and a host of other inflammatory conditions.

The high carbohydrate/low thiamine diet disturbs amino acid and fatty acid metabolism as well. Elevated branched-chain amino acids (BCAA) are common with hyperglycemia. Indeed, elevated BCAA may predict impending diabetes. Underlying the elevated BCCA is impaired catabolism due to a genetic or environmentally triggered defect in the BCKAD enzyme. BCKAD is dependent upon thiamine and elevated BCCAs are a manifestation of deranged energy metabolism precipitated by thiamine insufficiency. Genetic aberrations of BKCAD display similarly elevated BCAA, though typically much earlier, and respond favorably to thiamine supplementation.

With chronic hyperglycemia, the increased branched-chain keto acids, a secondary effect of poor BCAA catabolism, lead to excess short and medium-chain acylcarnitines. Surplus acylcarnitines increase the flux of fatty acids through the b-oxidation pathway beyond its capacity. This results in incomplete fatty acid metabolism, the dyslipidemias noted with hyperglycemia, and the formation of the pro-inflammatory diacylglycerol and ceramides that reinforce insulin resistance.

All of this, of course, comes against the backdrop of declining ATP capacity. Under conditions of insufficient thiamine/hyperglycemia, ATP production may be reduced up to 70% depending upon the severity and chronicity of disordered metabolism, the organ or tissue in question, and the model used to test. Decrements in the brain and heart, because of their high energy demands are the most severe, while reductions in the GI system and musculature present most noticeably in the early stages. Fatigue, weakness, and GI disturbances are among the earliest and most common unrecognized symptoms of the initial stages of insufficient thiamine.

Correcting Metabolic Dysfunction With Micronutrients

Ideally, ill-health would precipitate dietary changes, but in the case of hyperglycemia, particularly when it is chronic, the altered metabolic pathways and reduced capacity to synthesize ATP from consumed foods make this prospect difficult to impossible for some. Based upon thiamine’s role in this process, a more amenable approach might be to address thiamine and other micronutrient deficiencies first. Research from multiple disciplines demonstrates the remarkable improvement in metabolic capacity with thiamine repletion suggesting that simply replenishing this and other micronutrients may slow or reverse the progression of disease in these populations. Below are a few of the hundreds of studies published on this topic.

  • Thiamine reduced or reversed hyperglycemia-related activation of the secondary glucose pathways (polyol/sorbitol, hexosamine, diacylglycerol/PKC, AGE) via upregulation of the PDH enzyme. It improved cardiac contractility, reduced cardiac fibrosis and decreased the expression of the mRNA-associated proteins (thrombospondin, fibronectins, plasminogen activator inhibitor 1, and connective tissue growth factor), and prevented obesity in the overfed arm of an experiment using streptozotocin-induced diabetes in rats.
  • In streptozotocin (STZ)-induced diabetic rats, high-dose thiamine and benfotiamine (a synthetic S-acyl derivative of thiamine) therapy increased transketolase and PDH activity increasing ribose-5-phosphate and reduced microalbuminuria and proteinuria by 70-80%. PKC, AGE, and oxidative stress were all reduced significantly.
  • In STZ-induced diabetic/leptin mutant type rats, benfotiamine improved heart function and prevented hyperglycemia-induced, left ventricular end-diastolic pressure increase and chamber dilatation in both models.
  • Benfotiamine administration 150mg thiamine daily thiamine significantly reduced blood glucose within a month, in a randomized, placebo-control trial of 24 drug naïve T2D diabetics.
  • In a three-month randomized placebo controlled trial, 50 T2D patients in the experimental arm were given 3X 100mg thiamine per day. Thiamine therapy significantly improved microalbuminuria, glycated hemoglobin, while decreasing PCK levels. Markers of oxidative stress and fibrinolysis were non-significant.
  • After 45 days of benfotiamine and vitamin B6 supplementation, 19 of the 22 patients enrolled in the study saw statically significant reductions in pain, symptom scores, neurophysiological and biological markers of diabetic neuropathy.
  • A 6 month randomized trial with 60 T2D with medication-controlled blood sugar and 26 age – and BMI-matched controls found that 100mg thiamine daily, significantly corrected lipid profiles and creatinine levels.
  • One time administration of 100mg IV thiamine, improved endothelium-dependent vasodilatation in 10 patients with TD2 during an acute glucose tolerance test.
  • One week of IV thiamine administration at 200mg/day in six patients with heart failure (HF) and who were also receiving diuretics (diuretics deplete thiamine) improved left ventricular ejection fraction (LVEF) in four of those patients from 24% to 37%.
  • A randomized, double-blind, placebo controlled study of HF patients on diuretic treatment found that 300mg/day oral thiamine improved LVEF significantly.

Thiamine Insufficiency Versus Deficiency

Among the more common misperceptions about thiamine is that deficiency is delineated by laboratory testing. While this is true for severe deficiency and when the appropriate laboratory tests are utilized, far too often, the insufficiency syndromes that present months to decades before frank deficiency is detected, are missed completely. This owes in part to the variability of testing methodologies and in part to the very framework from which we determine sufficiency and deficiency. Thiamine testing, like the tests for many micronutrients, carries a high false-negative rate and fails to consider the nature of micronutrient deficiency relative to need. The next paper in this series will addressing testing methods.

As outlined above and in the Threats document, several environmental variables increase the demand for nutrients, a diet high in carbohydrates is top among them. The increased demand will not necessarily or immediately test positive for deficiency. Rather, it will present symptomatically and must be suspected based upon the symptoms of deranged energy metabolism. In these cases, thiamine supplementation is done to support and correct reduced enzyme activity so that consumed foods may be more efficiently metabolized and converted into ATP. This then reduces the use of the less efficient and generally deleterious secondary metabolic cascades linked to the constellation of negative health effects associated with hyperglycemia.

Consider Thiamine

Thiamine is a safe, non-toxic, essential nutrient that has become increasingly difficult to maintain in the face of modern dietary practices and chemical exposures. Thiamine sufficiency is fundamental to energy metabolism, mitochondrial capacity, and thus, health. Consider thiamine in your practice.

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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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Vitamin Therapy Paradox: Getting Worse Before Getting Better

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Does modern medicine accept the idea of vitamin therapy? The answer is a resounding no!  It has only been a little over 100 years since vitamins were synthesized. Of course, as everybody knows, all of these chemical substances were found to exist in natural food. They were very much part of the mystery of evolution. Essential to all animal life, they were there for the picking. Later, it was also found that a number of essential minerals were required. Both the vitamins and minerals need to be present in minute doses, covered under the eponym of recommended daily allowance (RDA). All we had to do was to obey the rules set out by Mother Nature. Our ancestors were classified as “hunter gatherers”. They hunted animals and gathered the bounty of nature. Yes, we were primitive savages and life was not the ideal by any means, but the food contained all that was necessary for life.

An Evolutionary Imperative To Eat Real Food

To ascertain what kind of food is required by an animal, you simply look at the teeth. We have front teeth called incisors for cutting, the pointed teeth called canine for tearing meat and the back teeth molars, used for grinding. Cows and horses are vegetarian and only have molar grinders. Human beings are omnivores (all foods edible) meaning that we are designed to eat meat, fruit and vegetables. Some of the vitamins are recycled through eating other animals. Others are recycled by being returned to the soil and passing into plants. That is why I have said to many people in answering the question as to what diet they should pursue, eat only nature made food and leave the man made food alone. Well, of course, you know that we didn’t do that.

We now have a food industry and it is quite unbelievable, at least to me, to see some of the stuff that passes as food, based solely on taste and appearance. Sometimes I find a person with these typical symptoms who is very careful with diet and does not practice taste hedonism, but because farming practices have changed in modern times, the produce does not have the same kind of non-caloric nutrient content. It may not be coincidental that such persons are almost invariably intelligent and physically and mentally active. It is reasonable to assume that their nutritional demand exceeds supply and they need non-caloric nutrients.

Sugar and the Vitamin Paradox

Now let me turn to the reason that I used “vitamin paradox” in the title. Anyone that wants to follow my reasoning can look back at previous posts on this website. You will find that there is a significant emphasis on the calamity of sugar ingestion and its association with vitamins, particularly thiamine. I am sure that I will look like a broken record to many people, but here is what happens to your health. Although it is obvious that all the vitamins and essential minerals are required, I am taking the example of thiamine because of its close association with the wide consumption of things called “goodies” or “sweets”.

All simple carbohydrate foods are broken down in the body to glucose. Research has shown that overloading the metabolism with sugar overwhelms the capacity of cellular machinery to burn (oxidize) it by producing a relative deficiency of thiamine, the vital catalyst that ignites (oxidizes) glucose to synthesize cellular energy for function. Recently it has been found that thiamine is required for the oxidation of fats, making the doughnut a perfect example of high calorie malnutrition. This is so important in the brain that I simply cannot overstate it.

High Calorie Malnutrition, Oxygen Deprivation and Brain Function

High calorie malnutrition is exactly equivalent to a mild degree of oxygen deprivation, so it is sometimes referred to as pseudo-hypoxia (false oxygen deprivation). If this is induced by poor diet where the pleasure of taste (hedonism) overrides appropriate nutrition, a curious thing happens! The lower part of the brain that deals automatically with your ability to adapt to a hostile environment becomes much more susceptible in its responsiveness.

I will give you one example: panic attacks, so extraordinarily common in our culture, are simply fight-or-flight reflexes that are triggered by pseudo-hypoxia. Messages go out to the body from this part of the brain, falsely initiated as though you were actually being “chased by a tiger”. Such an affected person will begin to experience the following symptoms as examples: palpitations of the heart, unusual sweating, a sense of anxiety or panic, irritable bowel syndrome, manifestations of allergy, emotional lability (emotions out of control) etc.  He or she will go to the doctor who will do a series of tests. If they are all normal, you will then be told that this is “all in your head” (psychosomatic). On the other hand, the doctor might find evidence for “mitral valve prolapse” (MVP), now known to be an early sign of “wear and tear” damage in the heart and the focus becomes “heart disease”(often used to explain heart palpitations) rather than its original cause, associated with nervous system dysfunction. I have seen MVP disappear in people from correcting their nutrition. It is rare for a patient to be asked about diet and rarer still to question the possibility of a vitamin deficiency.

Vitamin Deficiency: The Walking Sick

This kind of health situation may go one for a long time. The patient has symptoms but is not really a sick person. I refer to people like this as the “walking  sick”. Life continues as usual, but medications have failed to relieve the symptoms, or worse yet have introduced side effects. Over time, the loss of metabolic efficiency gradually leads to damage in cellular machinery (e.g. MVP) because the energy need to drive daily function is not being met. Thiamine activates the most important enzyme in energy synthesis and, in the early stages of nutritional deprivation, a thiamine plus multivitamin supplement would quickly abolish the symptoms. If neglected and the marginal malnutrition continues, it will be gradually more difficult to repair the damage.

Vitamin Therapy With Chronic Deficiency: Expect a Decline Before Improving

Physicians who practice Alternative Medicine have found that it is possible sometimes to retrieve function at this late stage of development by the use of a course of vitamins given intravenously. They have also learned that the symptoms of the patient actually get worse (paradox) in the initial stages of intravenous treatment but begin to get better following an unpredictable period of worsening. Naturally, the patient concludes that the treatment is bad or that it is causing side effects as in the use of vitamins. That is why I have christened it paradox, meaning that the unexpected happens.

Over the years of administering intravenous vitamin therapy for all kinds of conditions, irrespective of conventional diagnosis, I quickly learned to inform a patient about paradox before instituting treatment. Surprisingly, this paradoxical response usually heralds a good outcome. I do have some ideas about the cause of paradox, but it is so technical that I cannot attempt it here, perhaps in future posts. Intravenous vitamins are tremendously effective in the improvement of most chronic diseases, an effect that is almost impossible to achieve with the standard treatment of drugs as used in modern medicine today.

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Thiamine Deficiency in Modern Medical Practice

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thiamine deficiency in modern medical practice

Modern medical practices are plagued with patients who present with chronic, complex, and seemingly treatment resistant illness; illnesses that defy most laboratory testing and abound current diagnostic categories. Some data suggest that 25-75% of symptoms experienced by these patients fall under the umbrella of ‘medically unexplained symptoms’.

What if some of those symptoms were not only explainable but treatable and the expression of these illnesses manifested not from some complicated new disease but from a simple but forgotten nutrient deficiency? What if this nutrient was uniquely critical to mitochondrial competence such that its insufficiency would derail energetic capacity, affect cellular function broadly and diversely, and produce many of the symptoms currently ascribed as medically unexplained? Wouldn’t this be worthy of investigation in your patient population?

That nutrient is thiamine or vitamin B1 and it is essential to mitochondrial energetics – the conversion of food into adenosine triphosphate (ATP). This process is the backbone of all health, and absent sufficient thiamine, it grinds to a halt producing many of the diseases processes vexing modern medicine.

Thiamine is a critical and rate-limiting cofactor to five key enzymes involved in this process, including those at the entry points for the glucose, fatty acid, and amino acid pathways. It has a very short half-life (1-12 hours), limited storage capacity, and is susceptible to depletion and degradation by a number of products that epitomize modern life.

When thiamine is insufficient to overcome these variables, oxidative metabolism falters and the ability to generate molecular energy declines. Over time, aerobic respiration turns anaerobic, oxidative stress increases, and cellular, tissue, and organ function dependent upon steady state energetics deteriorates.

Anaerobic glycolysis, the telltale sign of everything from general metabolic dysfunction to cancer, is, at its root, an adaptive response to insufficient micronutrients like thiamine. Replenish thiamine, recover mitochondrial capacity, and aerobic metabolism and health improve.

Critically Ill Versus Walking Sick: Gradations of Insufficient Thiamine

Conventionally, thiamine deficiency syndromes have been described relative to overt, and often later stage illness in the hospital setting. The most common designations include: Wernicke’s encephalopathy marked by nystagmus, ataxia, and cognitive deficits; wet beriberi or high output cardiac failure with edema and dry beriberi, central and peripheral nervous system and cardiovascular disturbances without edema. More recently, sensorimotor polyneuropathy or neuritic beriberi, gastrointestinal dysmotility syndromes, and the dysautonomias have been included in the spectrum, but recognition is lagging.

These designations give the false illusion of a disease process that happens acutely and one that can be categorized by the afflicted organ system. Neither is accurate. While overt thiamine deficiency is certainly a medical emergency and may sometimes develop acutely, the vast majority of cases represent a culmination of years, if not decades, of insufficient thiamine intake relative to need. Until fulminant, these disease processes are marked by low mortality, but high, chronic, and polysymptomatic morbidity. This suggests ample opportunity to treat and prevent more serious illness, improve the patient’s quality of life, and possibly even regain health. Even in overt and emergent cases, where symptomology is obvious, resolution is possible with thiamine repletion.

Thiamine Depleting Factors

Thiamine deficiency is most commonly associated with food insecurity and chronic alcoholism; a narrow view that risks missing early signals of accruing disease across patient populations. Contributors to this deficiency are far more prevalent in first world countries with westernized food production than is recognized. Among the key dietary contributors to insufficient thiamine:

  • Alcohol
  • Tobacco
  • High carbohydrate, highly processed foods
  • Coffee, tea, energy drinks

Additionally, the regular use of common medications and/or exposures to environmental chemicals independently and synergistically provoke thiamine deficiency. Every medication and environmental chemical depletes thiamine directly or indirectly by a number of mechanisms including blocking thiamine uptake, increasing its degradation, preventing synthesis in gut microbiota, increasing excretion and/or by inducing mitochondrial damage by other means that then necessitates a higher thiamine intake to compensate. Some of the most commonly used medications are the biggest offenders:

Sadly, poor dietary habits trigger thiamine insufficiency independently, leading to the prescription of many of these medications, which then further derail thiamine status and mitochondrial capacity. It is an illness spiral that can only be resolved by addressing diet and mitochondrial nutrients like thiamine.

Genetic Contributors to Thiamine Deficiency

While thiamine deficiency diseases are predominantly attributable to diet and lifestyle variables, a number of common genetic polymorphisms in the solute carriers responsible for thiamine uptake, and in enzyme activity involved in thiamine metabolism, increase the demand for thiamine intake. In these cases, disease expression, particularly later in life, represents a latent genetic vulnerability triggered by environmental or lifestyle stressors. Many medication and vaccine reactions fall into this category.

Prevalence Across Patient Groups

Inasmuch as thiamine status is not regularly evaluated in clinical care, it is difficult to know how pervasive thiamine deficiency is within the general population. Moreover, there are no universally accepted cutoffs demarking the progression from suboptimal to frank deficiency. Of the data that do exist, it is likely far more common than recognized across a broad swathe of patient populations.

Strikingly, diabetes confers one of the largest risks for thiamine deficiency across patient populations. This is largely do to metabolic derangements (to be discussed in a subsequent post) initiated by the hyperglycemia. These include the increased excretion of thiamine, and interestingly, the endogenous production of the anti-thiamine molecule oxythiamine.

Thiamine Testing

Laboratory assessment of thiamine status varies in sensitivity and specificity, with some tests carrying a high false negative rate (standard serum and plasma), particularly when thiamine status is marginal and with recent intake of thiamine. The two most sensitive tests are whole blood HPLC and the erythrocyte transketolase activity/thiamine pyrophosphate effect combination, neither of which is readily available. Urinary organic acid tests, while indirect, may provide useful patterns for determining the need for thiamine and other mitochondrial nutrients.

How To Recognize Thiamine Insufficiency

In light of the difficulties associated with laboratory testing, clinical acumen is required. Given its role in energy metabolism, lack of energy, in multiple manifestations, is a cardinal indicator of insufficiency.

  • Chronic fatigue, muscle weakness, or pain
  • Hypersomnia or anorexia
  • Dysautonomic reactions – exaggerated, ill-timed, or inadequate autonomic responses to stressors, most notably in the brain, heart and/or GI system

Office observations to support thiamine insufficiency:

  • Subtle changes in gait, stability, muscle tone, speech, decrements cognitive or affective acuity or stability
  • Asymmetrical pulse pressure, postural hyper- or hypotension, general tachycardia (early stage), bradycardia (later stage)

Standard labs pointing to problems with energy metabolism:

How to Treat

While clinical practice guidelines exist for overt thiamine deficiency in hospital, which include the use of IV thiamine and additional nutrients at a range of doses dependent upon severity, there are no established guidelines for out-patient thiamine deficiency or insufficiency syndromes. This is partly due to its lack of recognition and partly due to the fact that individual need for thiamine, other mitochondrial co-factors, and response to repletion, varies considerably.

There are no known toxicities to high doses, however, there can be negative reactions in the initial phases of thiamine repletion for a subset of patients. These reactions can occur at any dose. In some cases, the reaction involves the specific formulation of thiamine. In other cases, electrolyte disturbances and/or other micronutrient deficiencies unmasked by thiamine are at fault. To mitigate these reactions, thiamine should always be given with magnesium (~50% of the population consumes less than the RDA and magnesium is required to activate thiamine), a clean, lower dose multi-vitamin and a potassium rich diet. It should be noted that additional calcium may also be needed (here, here), especially when dietary calcium has been low for an extended period. Hypophosphatemia may develop as well in patients with recent or extended GI illnesses and/or have a history of low protein consumption and sodium disturbances are also common.

Consider Thiamine

Thiamine is a safe, non-toxic, essential nutrient that has become increasingly difficult to maintain in the face of modern dietary practices and chemical exposures. Thiamine sufficiency is fundamental to energy metabolism, mitochondrial capacity, and thus, health. Consider thiamine in your practice.

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