lupron adverse reactions

Lupron, Thyroid Disease, and the Broken Scales of Justice

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Even though women being prescribed Lupron (leuprolide) have, understandably, no clue about its adverse thyroid effects, it is no secret that Lupron adversely affects the thyroid gland. (The same could be said for adverse effects from Lupron on many other organs and bodily systems, but the focus here will be on the thyroid.) For decades, a wide variety of adverse thyroid effects during or following this drug have been reported to the FDA: according to RxISK.org’s compilation of Lupron FDA Adverse Event Reports (‘AERS’, for the years 2004 – 2014), Thyroid cancer, Hypothyroidism, Thyroid disorder, Thyroidectomy, Hyperthyroidism, Thyroid neoplasm, Thyroid function test abnormal, Autoimmune thyroiditis, Thyroid cyst, Blood thyroid stimulating hormone increased, Blood thyroid stimulating hormone abnormal, Blood thyroid stimulating hormone decreased, Anti-thyroid antibody positive, Thyroid cancer metastatic, Biopsy thyroid gland abnormal, Follicular thyroid cancer, Thyroiditis, and Thyroiditis subacute have all been reported (search “thyroid” in “Side effects reported” here; also Open Vigil, which contains FDA AERS for the years 2003 – 2013, can be searched.)

Different Warnings for Different Countries

For decades foreign labels for Lupron have identified “thyroid enlargement” as an adverse event ( i.e. 1998 Australian label for “Lucrin [Lupron]”, MIMS Annual 1998, Australian Edition, page 9-804; also 2010 Danish label – Danish Medicines Agency, Product Resume for “Procren [Lupron] Depot”). As early as 1986 the US product label for the initial formulation of Lupron (5 mg/mL vial, administered as 1 mg daily subcutaneous injections) identified “thyroid enlargement” as an adverse event (1986 Package Insert No. 3626, “Lupron/leuprolide acetate 5 mg/mL. Manufactured for TAP Pharmaceuticals by Abbott Laboratories, Rev[ised] Nov. 1986”; 1992 Physicians’ Desk Reference [PDR] , “Lupron/leuprolide acetate 5 mg/mL”, p. 2310). The US product label for the intramuscular injection of monthly Lupron Depot 3.75 mg (and other depot dosages) likewise identified warnings for thyroid enlargement (i.e., 1995 PDR, “Lupron Depot 3.75 mg.”, p. 2506; 1996 PDR – “Lupron Depot 3.75 mg”, p. 2558.) Between 2004 and 2012, there were 22 reported cases of thyroid cancer, and Lupron was considered “highly suspect” by a number of physician opinions, and according to RxISK.org’s FDA AERS database, there’s been 6 more cases (search “thyroid cancer” in “Side effects reported” here).

But, despite this history, all thyroid adverse events have been removed from the current labels of US Depot formulations of Lupron, and no thyroid warnings have been identified since the mid-2000’s – i.e., the current Lupron 3.75 mgs product label as well as the current labels for other depot dosages no longer contain any mention of thyroid adverse effects. The daily 1 mg formulation of leuprolide continues to identify warnings of thyroid enlargement and thyroid nodule, and foreign labels for Lupron continue to identify adverse thyroid effects, but the labels for US Lupron Depot formulations (which are prescribed the most for women with endo and fibroids) are devoid of any warning.

In the Courts

It is worthwhile here to revisit the atrocities committed during the only Lupron lawsuit to make it to trial (Karin Klein v. TAP/Abbott, Case 2:08-cv-00681-RLH-RJJ, 2011) – many prior lawsuits having been quietly settled with secrecy agreements. Karin Klein, at age 17, was prescribed Lupron Depot 3.75 mgs in 2005 when Lupron’s label no longer contained the prior-listed warnings about adverse thyroid events. Karin developed, among others, chronic autoimmune Hashimoto’s thyroiditis. Belatedly learning of Lupron Depot 3.75 mgs’ prior US label warnings of adverse thyroid effects, as well as the prior and current similar warnings in foreign labels, Klein sued for failure to warn.

The judge at trial refused to allow the jury to learn of Lupron Depot’s pre-2005 US labels warning of adverse thyroid effects; the judge refused to allow the jury to learn of Lupron’s past and current foreign labels identifying adverse thyroid events; and the judge refused to allow the jury to learn of published medical literature identifying Lupron’s adverse thyroid effects (See Judge’s rulings, “Document 265, filed 07/25/11, page 13 of 40”, which can be found on p. 101 in this document). The judge would only allow the jury to learn of the 2005 US label. Moreover, Abbott’s mendacious defense medical “expert” stated under oath that “it was absolutely biologically impossible for Lupron to affect the thyroid gland. No textbook, no article has ever supported that contention. It’s simply biologically impossible.” (See “Page 20 of 131” here). A simple PubMed search shows this “expert statement” to be absolutely false – and this is without-a-doubt perjury (here, here, here and here). The first published report that “demonstrate[d] the association of thyroid disorder with leuprolide” occurred in 2000 – five years prior to Klein’s Lupron Depot prescription. Rhetorically speaking, exactly how does a paid “medical expert” get away with outright perjury concerning Lupron Depot’s – or any other drug’s – known risks?

This court’s curious restriction of limiting disclosure to only the 2005 Lupron Depot label (devoid of any thyroid warning) created the illusion for the jury that there were NO thyroid adverse effects from Lupron Depot for Klein to have been warned about — and so by a legal sleight of hand, Klein’s claim of “failure to warn” was made to disappear. The jury, unknowingly dis-informed and ‘educated’ in misinformation only, believed that it was ‘biologically impossible for Lupron to affect the thyroid gland’, and the jury found against Klein and found in favor of the drug company.

An appeal – bewilderingly – resulted in the Circuit Court making false statements and misstating facts. As argued on appeal by Klein’s attorneys:

“[Klein was] entirely shackled in the evidence she was allowed to present. It is particularly galling to have qualified (and expensive) expert witnesses on hand to testify, only for them to be shut down before the jury and precluded from offering competing expert opinions. The pattern shown by the record [of the Klein trial] is deeply disturbing. Virtually every discovery and evidentiary ruling, and other orders of significance, went for one party [TAP/Abbott and never for Klein]. … Such a one-sided proceeding was not the fair trial our system demands.” The multitude of rulings against Klein’s request for admission of evidence can be found delineated the afore-mentioned in “Document 265, filed 7-25-11”.

But the Circuit Court, in a 2-day deliberation, concluded: “… The district court did not abuse its discretion in excluding the challenged Lupron labels because they all contained information regarding the side effects of different formulations of Lupron, rendering them insufficiently relevant, unduly prejudicial, and likely to confuse the jury.” Here the Circuit Court misstates facts and conveys the opinion that “the pre-2005 US Lupron Depot 3.75 mg label for endometriosis” is a “different formulation” from “the 2005 US Lupron Depot 3.75 mg label for endometriosis”. This is utter hogwash from a high court – “Lupron Depot 3.75 mgs” is identical to “Lupron Depot 3.75 mgs” regardless of the year of the label. And it should not be terribly difficult for anyone (including the Court) to comprehend that the drug comprising the initial 1 mg. daily-injected subcutaneous Lupron was subsequently put into a “depot” (“long-acting”) ‘delivery form’, allowing one intramuscular injection to slowly deliver the same drug — Lupron – over the course of one (or three) month(s). The courts had access to the 2010 Danish label (Klein v. TAP/Abbott, Document 175, filed 06/12/11) in which it is stated “Leuprorelin [leuprolide] acetate is released at a constant rate over a period of 4 weeks (3.75 mg) or 12 weeks (11.25 mg) … which is equivalent with what is seen with a daily injection of 1 mg leuprorelin acetate.” (To date, I have not located that same statement in a US Lupron label.) This appellate court concludes that “Klein has not even remotely established that the district court exhibited such a high degree of favoritism or antagonism as to make fair judgment impossible.”

Denied her right to a fair trial a second time, Klein petitioned the US Supreme Court. One would (and should) assume the Supreme Court would inherently recognize the serious ramifications and public health impact of a case (any case) where perjury of the known dangers of a drug was committed by a defense expert (effectively hiding this information from the jury and ensuring a defense ‘win’), and where a Circuit Court completely misstated facts (upon which it had relied to deny Klein’s appeal). But, in fact, the denial of a plaintiff’s right to a fair trial, the denial of a jury’s right to truthful and accurate expert medical testimony, and the denial of society’s right to expect that court rulings will be based on authentic factual information were all issues the US Supreme Court deemed unworthy of review.

Broken Justice: Precedent for Medication Adverse Events Cases

These circumstances resulted in a devastating miscarriage of justice – not just for Karin Klein, but for all Lupron victims – and to society at large as well. What kind of precedence could this Klein verdict have upon future litigation – with this or any other drug? In fact, lawyers throughout the US, with potential plaintiffs seeking redress post-Lupron, were closely following the Klein case, and had Klein prevailed the floodgates of litigation were poised to spring open. But by securing a defense ‘win’ via, in my opinion, a multitude of highly questionable actions, those floodgates were slammed shut. (In May 2015 an RN disabled post-Lupron filed a lawsuit, and this case is presently making its way through the court system.) At least a few ethical and powerful legal experts should be examining the events in the Klein case – it could (and should) become renowned as a classic case of injustice personified. (Links to additional court documents and further details on the Klein case can be found at bottom of page, left column).

What does it mean when a young woman’s health and life are irreparably damaged and there is no recourse? How does a disabled victim fight against a system that has clearly indicated it is obfuscating and is the antithesis of justice? How does a society ensure that truth prevails, and harmful effects of drugs are exposed rather than shielded?

Recently, in attempts to achieve transparency in clinical trial data, many drug companies have put their clinical trial data online. The endometriosis clinical trial data for Lupron 3.75 mgs remains under a court seal – ensuring this data will never see the light of day.

There are many, many questions, and many, many victims, but as of yet – there are no substantive answers.

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This article was published originally on January 20, 2016.

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Lupron, Estradiol, and the Mitochondria: A Pathway to Adverse Reactions

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Leuprolide, more commonly known as Lupron, is the GnRH agonist prescribed for endometriosis, uterine fibroids, cysts, undiagnosed pelvic pain, precocious puberty, during infertility treatments, to treat some cancers, and a host of other off-label uses. It induces a chemical castration in both women and men. In women, Lupron stops menstruation and ovulation and crashes endogenous estradiol synthesis rapidly and completely, inducing menopause and menopause-associated symptoms like hot flashes, sweats and osteoporosis, to name but a few. In men, where it is used as a treatment for prostate cancer, it prevents the synthesis of testosterone, pharmacologically castrating its users and evoking a similar constellation of symptoms.

Lupron for Endometriosis: Questionable Research

Lupron’s widespread use for pain-related, female reproductive disorders, such as endometriosis or fibroids is not well supported, with little research indicating its efficacy in reducing pain and no research delineating its effects on disease progression. Conversely, evidence of safety issues have long been recognized, especially within the patient communities where reports of chronic and life-altering side effects are common. We have many case reports on our site alone. Although, class-action and marketing lawsuits have arisen, Lupron continues to be mis-prescribed regularly to diagnose or treat pelvic pain disorders like endometriosis, generating over $700 million in revenue in 2010 and 2011 for the manufacturers and an array of serious and chronic health issue for its recipients.

The reported side effects of Lupron are staggering both in the breadth of physiological systems affected and the depth of symptom severity experienced (a partial list). Indeed, everything from the brain and nervous system to the musculature, skeletal, gastrointestinal and cardiac systems are affected by Lupron, sometimes irreversibly. This is in addition to  thyroid, gallbladder and pancreatic side effects. How can one drug evoke so many seemingly disparate side effects? Is it possible that the magic of chemical castration is not as safe as we were led to believe; and that hormones regulate a myriad of functions beyond reproduction? It is.

Beyond Reproduction and Reproductive Disease

A major fallacy in medical science, and indeed medical research, is the total compartmentalization of physiological systems and by association an insoluble marriage of hormones to their respective reproductive organs, functions, and gender. Lupron, and drugs like it, were developed based upon this fallacy; that somehow suppressing estradiol and the other endogenous estrogens would affect solely the reproductive system. If only human physiology were that simple.

Hormones, even those inappropriately designated sex hormones, like estradiol and testosterone, regulate all manner of physiological adaptations in every tissue and organ in the body and they do so in conjunction with other hormones and by decidedly non-linear trajectories. That is, the dose-response functions are curvilinear where both too little and too much of a particular hormone can evoke serious negative consequences in body systems totally unrelated to reproduction. Chemical and surgical castration would fall into the ‘too little’ category.

Hormone Receptors are Ubiquitous

Hormones mediate these reactions via hormone receptors. Estrogen and androgen receptors are located throughout the brain and the nervous system, on the heart, in GI system, in fat cells, in immune cells, in muscle, the pancreas, the gallbladder, the liver,  everywhere. When hormones bind to these receptors, whether they are membrane bound, nuclear, or other types, the hormone-receptor complex activates or deactivates what are called signal transduction pathways, essentially message lines. Those messaging lines tell the cell to do something. Too much or too little of any one type of hormone sends mixed messages, skewing cell behavior just slightly at first and when there are only small changes in hormone concentration, but with more chronic or more severe hormone changes, the signals become increasingly more deranged and the compensatory reactions, meant only for short term, become more exaggerated and self-perpetuating. This is where problems emerge. Even if estradiol or more appropriately, estrogens (there are many estrogens) feed endometriosis, tanking estradiol concentrations is dangerous and sets into motion complex reactions that we are only now beginning to understand.

Hormones Influence Everything

Since the hormones and receptors are broadly located throughout the body, it doesn’t take a genius to figure out that if we kill off one or more hormones completely, as Lupron does with estradiol, there are going to be negative effects globally, and they are likely to be pretty serious. So, even a surface level evaluation of the safety of drug like Lupron, would suggest a strong possibility of negative outcomes in regions of the body not associated with reproductive function. And with just a little bit of endocrinology under one’s belt, it should be clear that negative outcomes would compound over time, as additional reactions meant to compensate for short term changes in hormone concentrations, become increasingly entrenched and self-perpetuating, and in many cases, increasingly damaging to the health of the cells – but it isn’t. Despite the range of serious side effects, Lupron is a commonly and cavalierly prescribed drug and newer versions of Lupron like drugs are expected to take the market by storm.

Estradiol Is Critical to Human Health

While the pharmacological mechanism of action for Lupron and drugs like it is clear, they override pituitary control of the tropic hormones that signal the ovaries or testes to synthesize new hormones, how these drugs induce the array of side effects, many of them long term and even permanent, has not been explored as seriously as it should be. Certainly, one can hypothesize the effects of estradiol elimination on different systems based upon receptor distribution within each tissue and the signaling pathways therewith, but the effects are diverse and sometimes contradictory or highly tissue specific. One has to wonder if there might be a final common pathway by which the elimination of estradiol could disrupt multiple physiological systems in a predictably discriminate manner. Indeed, there might be.

Estradiol Regulates Mitochondrial Function: Mitochondria Regulate Everything Else

If you’ve read any of our articles over the last year, you’re aware that we have become increasingly interested in mitochondria, particularly how drugs and nutrients or nutrient deficiencies, impact mitochondrial functioning. Mitochondria take nutrients from food we eat and convert them to the biochemical energy required to power cellular life – ATP. Without appropriate cellular energy all sorts of things go wrong. Energy is fundamental to life and so functioning ATP pathways are critical for cellular and organismal health (and so is proper nutrition!). A number of disease states emerge when the mitochondria are damaged or inefficient at producing ATP, from chronic fatigue, muscle wasting and autonomic system dysregulation to name but a few. Estradiol, and likely other hormones, (most of the research focuses on estradiol), influences mitochondrial functioning and the production of ATP via a number of mechanisms.

Estradiol Is Needed for the Production of ATP

Though not a component of what is called the citric acid or TCA cycle or the electron transport chain (also called the mitochondrial respiratory chain), estradiol appears to be intimately involved in up – and down-regulating the enzymes and other proteins within those energy production cycles. Estradiol directly and indirectly modifies the types fuel used to produce ATP (glucose, fatty acids or proteins) and impacts the efficiency and flexibility with which ATP is produced. Essentially, estradiol impacts the substrate inputs and keeps the cogs in electron transport chain cycles moving. When estradiol is eliminated, fuel sources shift (by tissue) and those cogs, called complexes, begin to slow, become less efficient and send off more damage signals (reactive oxygen species – ROS) than can be effectively cleaned up. Since functioning mitochondria and sufficient ATP are required for cellular health in all cells, where energy demands are greatest, symptoms emerge: the brain and nervous system, the  heart, the GI system, muscles, and bone formation/turnover.

In the brain, we see serious cognitive deficits and derangement of mood and perception with damaged mitochondria relative to estradiol elimination. We also see autonomic instability that impacts mood (flipping between depression and anxiety) but also heart rhythm and balance.

In the heart, the estradiol directly impacts mitochondrial fuel preferences and availability by regulating cardiac glucose and fatty acid metabolism. Without estradiol, the machinery within the mitochondria are not as flexible in their ability to switch between glucose, fat or proteins for precursor fuels to make ATP. The lack of flexibility, particularly during other physiological stressors, leads to impaired cardiac functioning and increased inflammation in affected tissues.

Bone formation is particularly hard hit as estradiol is required bone growth, maturation and turnover. Estradiol deficiency leads to increased osteoclast formation and enhanced bone resorption – destruction of bone or osteoporosis. Proper bone formation is also highly dependent upon vitamin D concentrations. Vitamin D deficiency leads to bone loss. Vitamin D activates estradiol synthesis, while estradiol activates vitamin D receptors. Lupron tanks estradiol and by association vitamin D, a double hit to bone health. At the level of the mitochondria, the third hit, reduced ATP, further damages bone health.

Estradiol is an Antioxidant

Antioxidants scavenge ROS. Antioxidants are needed to keep ROS concentrations at bay as too much ROS, though a natural byproduct of ATP production, will damage the mitochondria and initiate a damaging, self-perpetuating cycle. The body has a number of anti-oxidants to temper ROS. Many nutrients are included in this category: Vitamins C and E, CoEnzyme Q10 and glutathione are among the most well known. It turns out that estradiol and progesterone are potent anti-oxidants as well. So chemically or surgically eliminating estradiol reduces the body’s ability to detoxify and eliminate damaging ROS, evoking further mitochondrial damage.

Estradiol Modulates Mitochondrial Hormone Synthesis

That’s right, the mitochondrial estrogen receptors impact what is called steroidogenesis – steroid hormone synthesis – for multiple hormones, not just those pesky ‘female’ hormones. Like a thermostat that turns on or off when the temperature changes, mitochondrial estrogen (and other hormone) receptors sense hormone changes and up or downregulate the synthesis of pregnenolone (and the use of cholesterol to make pregnenolone). Pregnenolone is the precursor for all steroid hormones. So when Lupron or ovariectomy tank estradiol, not only is the synthesis of estrogens affected, but so too is the synthesis of other steroid hormones.

Estradiol Tempers Mitochondrial Ca2+ Homeostasis

Ca2+ balance is a complicated topic, a bit beyond the scope of this paper but is an important function modified by mitochondrial estrogen receptors. Ca2+ influx into cells is excitatory and turns on the cellular machinery. As one might expect, too much or too little Ca2+ activity could be damaging. Too much Ca2+ is cytotoxic or neurotoxic (if in the brain), killing the cells. The mitochondria are largely responsible for controlling the influx of Ca2+, sequestering Ca2+ when there is too much in order to save the cells. So when mitochondria become damaged or inefficient by any mechanism, Ca2+ homeostasis becomes an issue and cell death, tissue and organ damage become very real outcomes. Estradiol influences the mitochondria’s ability to sequester and temper Ca2+, so that the cells don’t become too turned on or over-active and die. (This is an interesting mechanism because estradiol itself is an excitatory hormone, increasing the activity of the cell when bound to the cell membrane or nuclear receptors but when bound to receptors on the mitochondria, estradiol tempers that excitation.)

Estradiol Regulates Immune Function

Estradiol bound to the estrogen receptors on immune and other cells activate and deactivate a number of signal transduction pathways that turn on/off inflammation and other immune responses. The mitochondria also regulate immune function via ROS signalling. Depletion of estradiol, particularly at the mitochondrial level, guarantees disrupted immune function and hyper inflammation by way of mitochondrial structural damage, derangement in function, and the loss of estradiol mediated anti-oxidant abilities. So by multiple mechanisms Lupron, drugs like it, and ovariectomy, damage mitochondria and initiate cascades of ill health.

Lupron, Maybe Not Such a Good Idea

Estradiol bound to mitochondrial receptors, controls a whole host of functions in the mitochondria, which then control cellular health throughout the brain and body. Without estradiol, the mitochondria become misshapen and dysfunctional and eventually die a messy death (necrosis), but not before inducing mutations in next generation mitochondria (mitochondrial life cycles include the regular birth of new mitochondria and the necessary death of old and damaged mitochondria). As the damage and mutations build and the ratio of healthy to damaged mitochondria shifts, cell death, tissue/organ damage and disease develop. Lupron, other drugs that tank estradiol, and ovariectomy, initiate mitochondrial damage. The mitochondrial damage represents a possible final common pathway by which Lupron induces the myriad of side-effects and adverse reactions associated with this drug.

A question that remains, is whether this damage can be offset by supporting mitochondrial machinery by other mechanisms. This is particularly important since millions of women have been exposed to Lupron and/or have had their ovaries removed. Other hormones and a myriad of nutrient factors are necessary for the enzymes within the mitochondrial machinery to work properly. Could we offset the damage evoked by too little (or too much) hormone by maximizing the efficiency of the other reactions. I think it is possible, at least theoretically and at least partially. That will be addressed in a subsequent post. For now, however, I think we ought to reconsider the use Lupron, other GnRH agonists, antagonists and the surgical removal of women’s ovaries. The damage evoked by eliminating estradiol is likely far greater than any potential benefit in an ill-understood disease process like endometriosis.

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. 

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This article was first published on January 16, 2015. 

Adverse Reactions, Hashimoto’s Thyroiditis, Gait, Balance and Tremors

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One of the things I most love about social media and health research is the opportunity to identify patterns of illness across different patient groups. Here is an example of finding research from one patient group, ThyroidChange, that likely spans many others (Gardasil injured, post Lupron Hashimoto’s, and Fluoroquinolone reactions – to name but a few) and offers clues to a perplexing array of symptoms. The research, is about a little known association between movement and balance disorders and Hashimoto’s thyroiditis: Ataxia associated with Hashimoto’s disease: progressive non-familial adult onset cerebellar degeneration with autoimmune thyroiditis.  Some background.

Hashimoto’s Disease

Hashimoto’s is the most common causes of hypothyroidism afflicting women at a rate of 10 to 1 compared to men. It is an autoimmune disorder in which antibodies attack the thyroid gland and destroy its ability to maintain normal thyroid hormone concentrations. The most common symptoms include: fatigue, muscle pain, weight gain, depression, cognitive difficulties, cold intolerance, leg swelling, constipation, dry skin. If left untreated, goiter – a swollen thyroid gland, appears. If left untreated for an extended period, cardiomyopathy (swelling of the heart muscle), pleural (lung) and pericardial (heart) effusion (fluid), coma and other dangerous conditions develop.

Hashimoto’s and Cerebellar Degeneration

A little known risk in Hashimoto’s is cerebellar degeneration. The cerebellum is the cauliflower looking section at the base of the brain that controls motor coordination – the ability to perform coordinated tasks such as walking, focusing on a visual stimuli and reaching for objects in space. The walking and balance disturbances associated with cerebellar damage or degeneration have a very distinct look, a wide gait, with an inability to walk heel to toe. Cerebellar ataxia looks like this:

In recent years, cerebellar involvement in attention and mood regulation have also been noted. The physicians reporting the Hashimoto’s – ataxia connection present case studies of six patients with Hashimoto’s disease, presumably controlled with medication and a progressive and striking shrinkage of the cerebellum (see report for MRI images) along with progressively debilitating ataxia (walking and balance difficulties) and tremors. Here’s where it becomes interesting.

Hashimoto’s: Medication Adverse Reaction and Misdiagnosis

Hashimoto’s disease is prevalent in our research into medication adverse reactions for Gardasil and Cervarix and Lupron, with some indications it may develop post Fluoroquinolone injury as well. The symptoms are difficult to distinguish from other neurological and neuromuscular diseases such as chronic fatigue syndrome, fibromyalgia, multiple sclerosis and an array of psychiatric conditions, and so Hashimoto’s often goes undiagnosed or is misdiagnosed and mistreated for some time.

Hashimoto’s, Demyelination and Cerebellar Damage

In some of the more severe adverse reactions to medications and vaccines that would lead to Hashimoto’s, the tell tale cerebellar gait disturbances have been noted and documented, along with a specific type of tremor (discussed below).

Research from other groups shows a strong relationship between thyroid function and myelin/demylenation patterns in nerve fibers in animals. Specifically, insufficient T3 concentrations demyelinates nerve axons, while T3 supplementation elicits myelin regrowth. Myelin is the white sheathing, the insulation that protects nerves and improves the electrical conduction of messages in sensory, motor and other neurons. Like co-axial cable in electrical wiring, when the protective sheathing is lost, electrical conductance is disrupted. The early symptoms of a demyelinating disease neuromuscular pain, weakness, sometimes tremors. These can be misdiagnosed as multiple sclerosis, fibromyalgia, chronic pain, when in reality, the culprit is a diseased thyroid gland.

Back to the Cerebellum

The cerebellum is a focal point of white matter axons – myelinated sensory and motor nerves. The cerebellum is where input becomes coordinated into motor movements or movement patterns. White matter damage in the cerebellum causes cerebellar ataxia, the movement and balance disorders displayed above. Hashimoto’s elicits white matter disintegration. Adverse reactions to medications and vaccines can elicit autoimmune Hashimoto’s disease. See the connection?

The Thiamine – Gut Connection

It gets even more interesting when we add another component of systemic medication adverse reactions – nutritional malabsorption, specifically thiamine deficiency. Almost across the board, patients with medication or vaccine adverse reactions report gut disturbances, from leaky gut, to gastroparesis, constipation, pain and a myriad of other GI issues that make eating and then absorbing nutrients difficult. Gut issues are common in thyroid disease too.

As we learn more, and as individuals are tested, severe nutrient deficiencies are noted, in vitamin D, Vitamin B1, B12, Vitamin A, sometimes magnesium, copper and zine. We’ve recently learned of the connections between Vitamin B1 or thiamine deficiency and a set of conditions affecting the autonomic nervous system called dsyautonomia or Postural Orthostatic Tachycardia Syndrome (POTS) linked to thiamine deficiency in the post Gardasil and Cervarix injury group. It may be linked to other injured groups as well, but we do not know yet.

Thiamine and Cell Survival

Thiamine or vitamin B1, is necessary for cellular energy. It is a required co-factor in several enzymatic processes, including glucose metabolism and interestingly enough, myelin production (the Hashimoto’s – cerebellar connection). We can get thiamine only from diet. When diet suffers as in the case of chronic alcoholism, where most of the research on this topic is focused, or when nutritional uptake is impaired, thiamine deficiency ensues. Thiamine deficiency can elicit cell death by three mechanisms:

  1. Mitochondrial dysfunction (reduced energy access) and cell death by necrosis
  2. Programmed cell death – apoptosis
  3. Oxidative stress – the increase in free radicals or decrease in ability to clear them

Thiamine deficiency in and of itself can elicit a host of serious health symptoms. The cell death and disruption of cellular energy balance can be significant and lead to a totally disrupted autonomic system.

Thiamine and Myelin Growth

Add to those symptoms, the fact that thiamine is involved in the growth myelin sheathing around nerves, and we have a whole host of additional neuromuscular symptoms masking as fibromyalgia, multiple sclerosis, chronic fatigue. Like with MS, limb and body tremors are noted in dysautonomic syndromes such as POTS. (Video of POTS tremors, note the uniqueness of the POTS tremor and the similarity between it and the foot tremor shown above along with cerebellar ataxia).

Let thiamine deficiency continue unchecked for period and we get brain damage, as white matter – the myelin disintegrates in the brainstem, the cerebellum and likely continues elsewhere. One of the most prominent areas of damage in thiamine deficiency, is the cerebellum, and hence, the cerebellar ataxia (movement disorders) noted in chronic alcoholics who are thiamine deficient, but also observed post medication or vaccine adverse reaction.

The Double Whammy on Myelin and Cerebellar Function

In the case medication or vaccine adverse reactions, particularly those that reach the systemic level, we have a double whammy on myelin disintegration: from a diseased thyroid gland and a diseased gut. Hashimoto’s and the reduction of thyroid hormones, particularly T3, impairs nerve conduction by shifting from a constant and healthy remyelinating pattern to one of demyelination, while the lack of thiamine further impairs myelin regrowth, because it is a needed co-factor. Both deficiencies affect peripheral nerves, but both also hit the brainstem, the cerebellum and likely other areas within the brain.

Take Home Points

The science of adverse reactions is new and evolving and much of what I am reporting here remains speculative. However, it has become abundantly clear through our research that to address medication adverse reactions or vaccine adverse reactions in a simplistic fashion, by region, or in an organ specific manner, is to miss the broader implications of the compensatory disease processes that ensue. Moreover, to look for symptoms of adverse reactions simply by the drug’s mechanism of action and/or by the standard outcome variables listed in adverse event reporting systems, again misses the complexity of the human physiological response to what the body is perceiving as a toxin. I believe that the entire framework for understanding the body’s negative response to a medication must be shifted to a much broader, multi-system, and indeed, multidisciplinary approach. In the mean time, we will continue to collect data on adverse reactions and offer our readers points of consideration in their quests for healing. I should note, that finding these connections is entirely contingent on the input our community of patients and health activists, both via the personal health stories that so many of you have been willing to share and the data we collect through our research. You know more about your health and illness than we do.

What we Know So Far – Tests to Consider

If you have had an adverse reaction to a medication or vaccine and neuromuscular difficulties, like pain, numbness, motor coordination problems, tremors etc., consider testing for Hashimoto’s thyroiditis. Also, consider thyroid testing when fatigue, depression, mood lability (switching moods), constipation, attentional and focus difficulties are present. In fact, I would consider thyroid testing, specifically for autoimmune thyroid disease like Hashimoto’s, as one of the first disease processes to rule out.

If you have had an adverse reaction to a medication that includes gut disturbances, consider the possibility that you are deficient in key micronutrients such as Vitamin D, the B’s, Vitamin A, magnesium, copper, zinc. And given the modern diet, consider that you were probably borderline deficient even before experiencing the adverse reaction. These nutrients are critically important to health and healing (and no, I do not have an association with vitamin companies or testing companies). Some tests for these nutrients are more accurate than others, so be sure to do your homework first.

If you have symptoms associated with autonomic systems dysregulation such as those associated with POTS, dysautonomia and its various permutations, consider thiamine testing, especially, transkelotase testing.

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Postscript: This article was published originally on Hormones Matter on October 15, 2013.