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NOTE:   The studies we will review are tagged with citation numbers like this: [2]
If you “click” on that red number, you will be transported to the actual study.
Many of the graphics can also be enlarged by clicking on them.

Nutrition and Neurodegenerative Diseases

Neurodegenerative diseases (NDDs) are a spectrum of disorders that attack brain and nervous tissue, interfering with coordinated muscle control and/or the ability to learn, think clearly, manage our emotions, or to access our memories. [1]

This group of neurologic disorders includes the

demyelinating disorders   [2] like Multiple Sclerosis,
movement and cerebellar disorders     [3]   like Parkinson's disease,
and the dementias,     [4]   which mostly includes Alzheimer's disease.

Their incidence rates in America are:

    Multiple Sclerosis      947,000  [5]
    Parkinson's Disease   1,200,000  [6]
    Alzheimer's Disease   5,800,000  [7]

Although each one of these diseases target different portions of the brain, there are numerous similarities in the decline of those tissues, and in how they begin to form fatty-protein tangles which interrupt nerve function.

Our first (2008) review of NDDs [8 A] discussed a meta-analysis [8 B] of 59 different randomized clinical trials that assessed the five FDA-approved drugs for treating Alzheimer's. That study revealed that all five drugs currently in use to manage Alzheimer's all failed to provide “clinically important improvements” for the patients who took them. [9]

The reviewers also advised that: “Clinicians must take into account the adverse effects of these drugs, and balance that potential harm against the modest potential benefits.” [9]

The five approved medications include the cholinesterase inhibitors donepezil, galantamine, rivastigmine, tacrine and the neuropeptide-modifying agent memantine. Since 2013 several other Phase II drug trials have also failed to provide any measurable benefits.

Our second (2013) newsletter [10 A] provided an updated overview of Alzheimer’s (AD), reviewing the dramatic impact that the pharmaceutical industry has on the direction of research, and also examined the evolving theory that insulin insensitivity appear to be a major contributor to AD development, leading some researchers to now refer to AD as “Type 3 diabetes”.   [10 B]


The Chicken or the Egg?

When someone dies of a neurodegenerative disease like Parkinson’s or Alzheimer’s, it is possible, with modern technology, to study their brain tissue, [11] and to run extensive lab analyses, to determine how those diseased cells differ from “normal” brain tissue. [12], [13]

Those observations have revealed that:

  • Dramatic changes occur in cellular architecture:   These include damage to, or even complete disintegration of the microtubules [14] that control intracellular transportation, provide general structural support, and choreograph cell division.

  • Extensive disruption of cellular energy production:   Mitochondrial dysfunction and damage reduces cell function while also increasing oxidative damage, causing a vicious and self-perpetuating cycle of damage that ultimately leads to neuron death.   [15]

  • Lower nutrient levels in damaged brains:   Deficiencies of antioxidants, trace minerals, flavonoids, vitamins, and omega-3 fatty acids are commonly found in damaged brain tissues.   [16],     [17]

  • Proliferation of bizarre proteins and modified fatty acids:   Chief among these are amyloid plaques and advanced glycation end products (aka AGE proteins) that disrupt nerve transmission.   [4],     [18]

All these revelations raise the “chicken or egg” conundrum. Which one came first? Do nutrient deficiencies from birth onwards cause the disease, or is the disease process somehow suppressing nutrient levels? Is oxidative stress THE cause, or is it a result of insufficient antioxidant protection?

Every research group promotes their own pet theory. The National Institute of Health (NIH) is the largest source of funding for medical research, with a 2015 budget of $30.3 Billion dollars. [19] They have funded studies exploring genetic predisposition, bacterial or viral contribution, drug interactions, and nutrient deficiencies. Sadly, prevention still remains low on the list of priorities. That’s because competition for research funding at the 27 different Institutes at the NIH is fierce. Meanwhile, in the background, pharmaceutical manufacturers continue to siphon off researchers to provide support for their own drug treatment protocols.


The Elephant in the Room

My personal observation is that nutrient deficiencies over prolonged periods of time are the real culprit in starting the cascade of neural degeneration. That theory is well supported by data provided by the National Health and Nutrition Examination Survey database (NHANES). Created by the Centers for Disease Control back in the 1960s, NHANES conducts periodic health surveys, designed to assess general nutritional status and its impact on health and disease prevention.   [20]


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