Vitamins Offer Hope for Alzheimer's
In the United States, Alzheimer's disease is currently at epidemic
proportions, with 5.4 million Americans—including one in eight people
aged 65 and over—living with the disease, according to the Alzheimer's
Association's 2011 Alzheimer's Disease Facts and Figures1.
By 2050, this is expected to jump to 16 million, and in the next 20
years, it is projected that Alzheimer's will affect one in four
Americans, rivaling the current prevalence of obesity and diabetes.
There is still no known cure for this devastating disease, and very few treatments. Alzheimer's drugs are often of little to no benefit at all, which underscores the importance of prevention throughout your lifetime.
Research repeatedly suggests the best hope for patients lies in
prevention through optimal diet, exercise and staying socially and
mentally active. As recently reported by Forbes2:
“[A] new study in Science suggested that last
year’s ‘breakthrough’ pharmaceutical, bexarotene (Targretin) – a cancer
drug that had initially received wide publicity for helping break up the
plaques in Alzheimer’s – doesn’t seem to do this very well at all, and
can have significant adverse side effects for the patient.
‘Something happened in that initial report – either something
technically or otherwise, which we can’t put our hands on at this point
in time,” study author Sangram Sisodia told US News & World Report.
‘Something is seriously wrong.’
While memory loss
is common among Westerners, it is NOT a "normal" part of aging.
Research has shown that even mild "senior moments" are caused by the
same brain lesions associated with Alzheimer's disease and other forms
of dementia. These cognitive changes are by no means inevitable!
People who experience very little decline in their cognitive function
up until their deaths have been found (post-mortem) to be free of brain
lesions, showing that it's entirely possible to prevent the
damage from occurring in the first place. At the end of this article, I
share my best tips for maintaining healthy brain function well into old
age.
In recent years, researchers studying natural compounds have offered
new hope. For example, two recent studies suggest that compounds in
cinnamon, as well as vitamins B12, B6, and folate may delay the onset
and/or slow progression of the disease.
The Promise of Cinnamon and Vitamins in the Fight Against Alzheimer’s Disease
The first study in question, published in the Journal of Alzheimer’s Disease3,
found that cinnamaldehyde and epicatechin, two compounds found in
cinnamon, have an inhibitory effect on the aggregation of a particular
protein called tau. Tau plays a large role in the structure and function
of neurons.
But while a normal part of cell structures, this protein can begin to
accumulate, forming “neurofibrillary tangles” that are a hallmark of
Alzheimer’s disease. Both compounds were found to protect tau from
oxidative damage that can lead to dysfunction.
Donald Graves, adjunct professor in UCSB's Department of Molecular,
Cellular, and Developmental Biology and co-author of the study explained
the protective process to Medical News Today4:
"'Take, for example, sunburn, a form of oxidative damage. If you
wore a hat, you could protect your face and head from the oxidation. In a
sense this cinnamaldehyde is like a cap. While it can protect the tau
protein by binding to its vulnerable cysteine residues, it can also come
off,' Graves added, which can ensure the proper functioning of the
protein.”
It’s interesting to note that there’s a high correlation between type
2 diabetes and Alzheimer's disease. Some even believe Alzheimer’s may
be a form of brain diabetes.
Insulin and insulin receptors in your brain are crucial for learning
and memory, and it’s known that these components are lower in people
with Alzheimer’s disease.
In addition to the above findings, cinnamon has also been found to have beneficial effects on blood glucose management in type 2 diabetics. This is one of the reasons I include cinnamon in my healthy coconut candy recipe.
B Vitamins Again Show Promise in Alzheimer’s Prevention
The other study, published in Proceedings of the National Academy of Sciences5,
found that vitamins B6, B12, and folic acid may help slow the
progression of the disease, confirming and supporting previous studies.
As reported in the featured article6:
“The fact that B-family vitamins may play a significant role in
dementia, or more specifically in warding it off has been consistently
illustrated. What is news from the current study, however, is that
high-dose B-vitamin treatment in people at risk for the disease ‘slowed
shrinkage of whole brain volume,’ and especially reduced shrinkage in
areas known to be affected in Alzheimer’s disease.”
The 156 study participants, all of whom were over the age of 70, were
diagnosed with mild cognitive impairment. This, along with midlife
hypertension, midlife obesity and diabetes, is a known risk factor for
Alzheimer’s. One group of participants received a placebo while the
other received high-dose B-vitamin treatment consisting of:
- 0.8 mg folic acid
- 20 mg vitamin B6
- 0.5 mg vitamin B12
It is important to note that vitamin B12 comes in many forms and it
is typically injected because it is not absorbed well by most people,
especially in the elderly who need it most. This is due to it being one
of the largest vitamins known. The most common form is cyanocobalamin
but a better from would be methylcobalamin. A better alternative to B12
injections would also be sublingual sprays, which are absorbed very
similarly to the injections.
The treatment effectively slowed shrinkage of the whole brain volume
over the course of two years. It also reduced, by as much as seven-fold,
the cerebral atrophy in certain brain regions that are particularly
vulnerable to damage associated with Alzheimer’s disease. Another major
boon: The supplements cost less than 50 cents a day and are readily
available in pharmacies and health-food stores. In the placebo group,
higher homocysteine levels at baseline were associated with faster
atrophy in these same regions. According to the researchers7:
“We... show that the beneficial effect of B vitamins is confined
to participants with high homocysteine... and that, in these
participants, a causal Bayesian network analysis indicates the following
chain of events: B vitamins lower homocysteine, which directly leads to
a decrease in gray matter atrophy, thereby slowing cognitive decline.
Our results show that B-vitamin supplementation can slow the
atrophy of specific brain regions that are a key component of the AD
process and that are associated with cognitive decline.”
Dr. A. David Smith, professor emeritus of pharmacology at Oxford
University, founding director of the Oxford Project to Investigate
Memory and Ageing, and senior author of the study told Bloomberg News8 that this B-vitamin treatment is “the first and only disease-modifying treatment that’s worked. We have proved the concept that you can modify the disease.”
This shouldn’t come as a surprise to anyone who understands that
without proper nutrition and exercise, your brain will be increasingly
vulnerable to damage with age...
Vitamin B Cocktail Already Used for Dementia Prevention in Sweden
Three years ago, the same group of researchers showed that the
atrophy rate in patients’ whole brains was reduced by about 30 percent
in those taking the vitamin cocktail9.
The atrophy rate was even higher—53 percent—in those who had elevated
homocysteine levels, a benefit that was reconfirmed in the featured
study. According to Bloomberg10:
“The studies, known as Vitacog, were funded by seven charities
and government agencies and vitamin maker Meda AB of Solna, Sweden.
Smith is an inventor on three patents held by Oxford University for B
vitamin formulations to treat Alzheimer’s disease... Vitamin B12 is
found in liver, fish and milk and folic acid in fruit and vegetables.
Deficiency of folate and B vitamins is already linked to dementia...
Doctors in Sweden began measuring homocysteine in people who report declining memory about two years ago, said [Johan] Lokk [professor
and head physician in the geriatric department at Karolinska University
Hospital in Sweden, who wasn’t involved in the study]...
Swedish patients with high homocysteine are given folic acid and B
vitamins, even if they aren’t deficient. ‘We think the increased
homocysteine level could be deleterious to the brain,’ Lokk said. ‘We
wanted to be on the offensive in diagnosing and treating patients. In
our opinion, it is harmless and cheap.'”
General Anesthesia Could Increase Risk of Dementia in Elderly by 35 Percent
Related research suggests that being exposed to general anesthesia can increase the risk of dementia
in the elderly by as much as 35 percent. The research was presented at
the annual congress of the European Society of Anesthesiology (ESA). As
reported by Medical News Today11:
“Postoperative cognitive dysfunction, or POCD, could be
associated with dementia several years later. POCD is a common
complication in elderly patients after major surgery. It has been
proposed that there is an association between POCD and the development
of dementia due to a common pathological mechanism through the amyloid β
peptide. Several experimental studies suggest that some anesthetics
could promote inflammation of neural tissues leading to POCD and/or
Alzheimer's disease (AD) precursors including β-amyloid plaques and
neurofibrillary tangles.”
Participants aged 65 and over were followed for a total of 10 years.
Participants exposed to at least one general anesthetic over the
follow-up had a 35 percent increased risk of developing a dementia
compared to those who were not exposed to anesthesia. According to lead
researcher Dr. Francois Sztark12:
"These results are in favor of an increased risk for dementia
several years after general anesthesia. Recognition of POCD is essential
in the perioperative management of elderly patients. A long-term
follow-up of these patients should be planned."
Tips for Avoiding Alzheimer's Disease
The beauty of following my revised Nutrition Plan
is that it helps treat and prevent all chronic degenerative diseases,
from the common ones like heart disease, diabetes, obesity and
Alzheimer's to the ones you have never heard of or can't even pronounce.
So please read the Plan as soon as you can. It is divided into three
helpful sections, Beginner, Intermediate and Advanced to help you start
at the right level.
The plan is the first step in addressing Alzheimer's disease, which
is currently at epidemic proportions, with 5.4 million Americans –
including one in eight people aged 65 and over – living with the
disease.
Remember, while memory loss is indeed common among Westerners, it is
NOT a "normal" part of aging, and cognitive changes are by no means
inevitable. People who experience very little decline in their cognitive
function up until their deaths have been found (post-mortem) to be free
of brain lesions, showing that it's entirely possible to prevent the
damage from occurring in the first place… and one of the best ways to do
this is by leading a healthy lifestyle.
- Sugar and Fructose. Ideally,
you’ll want to keep your sugar levels to a minimum and your total
fructose below 25 grams per day, or as low as 15 grams per day if you
have insulin resistance or any related disorders.
- Improve magnesium levels. There is some exciting preliminary research strongly suggesting a decrease in Alzheimer symptoms with increased levels of magnesium in
the brain. Unfortunately, most magnesium supplements do not pass the
blood brain levels, but a new one, magnesium threonate, appears to and
holds some promise for the future for treating this condition and may be
superior to other forms.
- Optimize your vitamin D levels with safe sun exposure. Strong links between low levels of vitamin D
in Alzheimer's patients and poor outcomes on cognitive tests have been
revealed. Researchers believe that optimal vitamin D levels may enhance
the amount of important chemicals in your brain and protect brain cells
by increasing the effectiveness of the glial cells in nursing damaged
neurons back to health.
Vitamin D may also exert some of its beneficial effects on
Alzheimer's through its anti-inflammatory and immune-boosting
properties. Sufficient vitamin D is imperative for proper functioning of
your immune system to combat inflammation that is also associated with
Alzheimer's.
- Keep your fasting insulin levels below 3. This is indirectly related to fructose,
as it will clearly lead to insulin resistance. However other sugars
(sucrose is 50 percent fructose by weight), grains and lack of exercise
are also important factors. Lowering insulin will also help lower leptin
levels which is another factor for Alzheimer’s.
- Vitamin B12: In addition to the research presented above, a small Finnish study published in the journal Neurology13
also found that people who consume foods rich in B12 may reduce their
risk of Alzheimer's in their later years. For each unit increase in the
marker of vitamin B12, the risk of developing Alzheimer's was reduced by
two percent. Remember sublingual methylcobalamin may be your best bet
here.
- Eat a nutritious diet, rich in folate, such as the one described in my nutrition plan.
Vegetables, without question, are your best form of folate, and we
should all eat plenty of fresh raw veggies every day. Avoid supplements
with folic acid, which is the inferior synthetic version of folate.
- High-quality animal-based omega-3 fats, such as
krill oil. (I recommend avoiding most fish because, although fish is
naturally high in omega-3, most fish are now severely contaminated with
mercury.) High intake of the omega-3 fats EPA and DHA help by preventing
cell damage caused by Alzheimer's disease, thereby slowing down its
progression, and lowering your risk of developing the disorder.
- Avoid and eliminate mercury from your body.
Dental amalgam fillings, which are 50 percent mercury by weight, are one
of the major sources of heavy metal toxicity. However you should be
healthy prior to having them removed. Once you have adjusted to
following the diet described in my optimized nutrition plan, you can follow the mercury detox protocol and then find a biological dentist to have your amalgams removed.
- Avoid aluminum, such as antiperspirants, non-stick cookware, vaccine adjuvants, etc.
- Exercise regularly. It's been suggested that exercise can trigger a change in the way the amyloid precursor protein is metabolized14,
thus, slowing down the onset and progression of Alzheimer's. Exercise
also increases levels of the protein PGC-1alpha. Research has also shown
that people with Alzheimer's have less PGC-1alpha in their brains11
and cells that contain more of the protein produce less of the toxic
amyloid protein associated with Alzheimer's. I would strongly recommend
reviewing the Peak Fitness Technique for my specific recommendations.
- Avoid flu vaccinations as most contain both mercury and aluminum, well-known neurotoxic and immunotoxic agents.
- Eat blueberries. Wild blueberries, which have
high anthocyanin and antioxidant content, are known to guard against
Alzheimer's and other neurological diseases. Like any fruit though,
avoid excesses here.
- Challenge your mind daily. Mental stimulation,
especially learning something new, such as learning to play an
instrument or a new language, is associated with a decreased risk of
Alzheimer's. Researchers suspect that mental challenge helps to build up
your brain, making it less susceptible to the lesions associated with
Alzheimer's disease.
- Avoid anticholinergic and statin drugs. Drugs
that block acetylcholine, a nervous system neurotransmitter, have been
shown to increase your risk of dementia. These drugs include certain
nighttime pain relievers, antihistamines, sleep aids, certain
antidepressants, medications to control incontinence, and certain
narcotic pain relievers.
Statin drugs
are particularly problematic because they suppress the synthesis of
cholesterol, deplete your brain of coenzyme Q10 and neurotransmitter
precursors, and prevent adequate delivery of essential fatty acids and
fat-soluble antioxidants to your brain by inhibiting the production of
the indispensable carrier biomolecule known as low-density lipoprotein.
Other Natural Treatments for Your Anti-Alzheimer's Arsenal
Finally, there are a few other nutritional recommendations worth
noting for their specific benefits in preventing and treating dementia.
So, although your fundamental strategy for preventing dementia should
involve a comprehensive lifestyle approach, you may want to consider
adding a few of these natural dietary agents to your anti-Alzheimer's
arsenal. These four natural foods/supplements have good science behind
them, in terms of preventing age-related cognitive changes:
- Coconut Oil: The
primary fuel your brain needs for energy is glucose. However, your
brain is able to run on more than a single type of fuel, one being
ketones (ketone bodies), or ketoacids. Ketones are what your body produces when it converts fat (as opposed to glucose) into energy.
The medium-chain triglycerides (MCT) found in coconut oil are
GREAT source of ketone bodies, because coconut oil is about 66 percent
MCTs. In fact, ketones appear to be the preferred source of brain food
in patients affected by diabetes or Alzheimer's.
- Astaxanthin
is a natural pigment with unique properties and many clinical benefits,
including some of the most potent antioxidant activity currently known.
As a fat-soluble nutrient, astaxanthin readily crosses your blood-brain
barrier. One study15 found it may help prevent neurodegeneration associated with oxidative stress, as well as make a potent natural "brain food."
The molecules of astaxanthin neutralize free radicals and other
oxidants without being destroyed or becoming pro-oxidants themselves in
the process. It's is a unique molecule whose shape allows it to
precisely fit into a cell membrane and span its entire width. In this
position, astaxanthin can intercept potentially damaging molecules
before they can damage your cells.
You can get some astaxanthin by taking krill oil, which is a
fantastic omega-3 fat supplement. But you can boost your astaxanthin
even MORE by adding a pure astaxanthin supplement to your nutritional
regimen. For optimal absorption, make sure to take krill oil and/or astaxanthin with a fat-containing meal, since both are fat-soluble.
- Gingko biloba: Many
scientific studies have found that Gingko biloba has positive effects
for dementia. Gingko, which is derived from a tree native to Asia, has
long been used medicinally in China and other countries. A 1997 study
from JAMA showed clear evidence that Gingko improves cognitive performance and social functioning for those suffering from dementia.
Research since then has been equally promising. One study in 2006
found Gingko as effective as the dementia drug Aricept (donepezil) for
treating mild to moderate Alzheimer's type dementia. A 2010
meta-analysis found Gingko biloba to be effective for a variety of types
of dementia.
- Alpha lipoic acid (ALA): ALA can stabilize cognitive functions among Alzheimer's patients and may slow the progression of the disease.
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