ACAM, Medical Conference Report, October 2000, Salt Lake City
by Ivy Greenwell
Introduction
Several years ago I heard a holistic practitioner say, “If we prevent
inflammation, we can prevent Alzheimer's disease.” I was stunned. The mainstream
view was, “If you live long enough, you will develop Alzheimer's.” The
same went for cataracts and cardiovascular disease. Then last June Paul
Ridker, MD, a Harvard cardiologist, publicly stated, “We have to think
of heart disease as an inflammatory disease, just as we think of rheumatoid
arthritis as an inflammatory disease.” He asserted that it's inflammation
that leads to pieces of arterial plaque breaking off and causing heart
attacks, even in people with normal or low cholesterol. Recently headlines
announced that men regularly taking non-steroidal anti-inflammatories (NSAIDs)
such as ibuprofen lowered their risk of prostate cancer by 66%; some risk
reduction with NSAID use has also been reported for breast cancer and colon
cancer. On a minor but important note, Dr. Nicholas Perricone, an innovative
dermatologist, is now saying (or at least implying) that if we prevent
inflammation, we can prevent a lot of skin aging.
Because of our new awareness of the importance of inflammation, it is
not surprising that the most recent conference of the Academy for the Advancement
of Medicine (ACAM) had inflammation and infection as its main theme. Only
by understanding the mechanisms involved in the pathogenesis of diseases
such as AIDS, cancer or Alzheimer's disease can we develop effective therapies.
The growing understanding of the major role that oxidative stress and inflammation
play in the development and progression of various pathologies has brought
progress in devising more effective treatment protocols. In addition, the
conference also included lectures and workshops dealing with updates in
hormone replacement. Here are some of the highlights.
“The
brain on fire”—Inflammation as the key to neurodegenerative diseases
The brain in a state of chronic inflammation is, in Perlmutter's colorful
phrase, "the brain on fire." Current therapies "treat the smoke, but not
the fire."
David Perlmutter, a neurologist and director of the Perlmutter Health
Center in Naples, Florida, and the author of BrainRecovery.com — Powerful
Therapy for Challenging Brain Disorders, delivered an exciting lecture
on the nature, prevention and treatment of neurodegenerative diseases such
as Alzheimer's and Parkinson's. He concentrated on two factors: inflammation
and glutathione depletion. Once we understand the critical importance of
inflammation and glutathione depletion in brain diseases, we can take steps
to prevent or even reverse the damage.
First, Dr. Perlmutter presented evidence that the current mainstream
drugs such as Aricept are “essentially useless” in actually treating Alzheimer's
disease. Their effectiveness is minimal at best, while their side effects
include vomiting, dizziness and insomnia. These drugs do not correct the
underlying inflammation. The brain in a state of chronic inflammation is,
in Perlmutter's colorful phrase, “the brain on fire.” Current therapies
“treat the smoke, but not the fire.”
The first real breakthrough in the understanding and treatment of Alzheimer's
disease has been the discovery that the use of aspirin and NSAIDs such
as ibuprofen (Advil) has a very significant protective effect. In one large
study of those who used aspirin, NSAIDs or acetaminophen, NSAIDs reduced
the risk of Alzheimer's disease to only 40% that of nonusers. Aspirin reduced
the risk to 74%. Acetaminophen, however, raised the risk by 35% (this may
have something to do with a toxic metabolite of acetaminophen, which depletes
glutathione).
This finding is of tremendous importance to arthritis sufferers—they
must become aware that their choice of a pain reliever is crucial in determining
their risk of developing Alzheimer's disease. The effectiveness of ibuprofen
is likely to stem from its superior ability to inhibit Nuclear Factor kappa
B (NFkB), a transcription factor that switches on the production of inflammatory
cytokines that initiate the process of cell death. It also supports Dr.
Perlmutter's thesis that inflammation (“fire”) is at the core of Alzheimer's
disease, and may turn out to be far more important than the beta-amyloid
plaque.
We need to put out the fire in the brain—that is, reduce inflammation.
Fortunately, we have some knowledge about how to accomplish this goal.
For instance, we know that simply by taking nonsteroidal anti-inflammatories
on a preventive basis, we can cut the risk of developing the disease by
as much as 60%.
Can anti-inflammatories be used not only for prevention of neurodegenerative
diseases, but also as treatment? Indomethacin, a well-known nonsteroidal
anti-inflammatory, has been found to produce improvement in Alzheimer's
patients, Perlmutter pointed out. The improvement was modest, but dramatic
in the light of the fact that over the six-month course of the study the
placebo group continued to deteriorate. Currently there is also great interest
in the effect of selective COX-2 inhibitors (Celebrex, Vioxx) on the prevention
of Alzheimer's disease, Perlmutter said. A few participants were concerned
that “we may discover the price later on,” but for now we simply have to
wait for more research findings. The main point is there has been a revolution
in medical thinking. The gloomy dogma that nothing can be done to prevent
Alzheimer's is giving way to an increasing awareness that reducing inflammation
is powerful prevention. And now that we have those expensive COX-2 inhibitors,
with more underway, the drug companies are certainly interested.
Pharmacological NSAIDs are not the only way to reduce inflammation.
Fish oil has been shown to be an effective natural anti-inflammatory. The
consumption of fish oil results in a different composition of cell membranes,
with less arachidonic fatty acid available for the production of pro-inflammatory
cytokines. Animal studies showed that diets containing fish oil profoundly
reduce the levels of pro-inflammatory chemicals such as tumor necrosis
factor alpha (TNF alpha) and various interleukins. Flax oil, a rich source
of short-chain omega-3 fatty acids, also appears to be anti-inflammatory,
though to a lesser degree. Epidemiological studies have amply demonstrated
that frequent fish-eaters enjoy much better health, including less cognitive
impairment and lower incidence of Alzheimer's disease, than those who eat
little or no fish.
In addition, all antioxidants are also anti-inflammatory. Alpha lipoic
acid and various flavonoids (such as those found in green tea and blueberries)
may be particularly effective. A diet that emphasizes fish and seafood
rather than meat, along with antioxidant-rich fruits and vegetables, can
be useful in preventing degenerative brain disorders. This type of anti-inflammatory
diet can make all the more difference with the right supplementation.
Perlmutter, however, placed special emphasis not on reducing inflammation
once it has already started, but on trying to prevent it in the first place.
“It's best to prevent inflammation from starting, rather than use drugs
to dampen it,” he said. He emphasized that inflammation in the brain is
particularly difficult to control. Cerebral inflammation tends to be self-perpetuating.
We know that head injury and strokes (including mini-strokes), as well
as various toxins and infections, produce inflammation and increase the
risk of neurodegenerative disease. But few people know about the role of
excess blood sugar in producing inflammation and thus contributing to the
death of neurons. Perlmutter observed that Ronald Reagan's notorious sweet
tooth might have contributed to the pathogenesis of his Alzheimer's disease.
A diet that emphasizes fish and seafood rather than meat, along with
antioxidant-rich fruits and vegetables, can be useful in preventing degenerative
brain disorders.
Perlmutter cited a Dutch study that found a more than quadruple risk
of dementia in type II diabetics who use insulin. On the other hand, calorie
restriction, which profoundly reduces blood sugar and insulin, is perhaps
the best dietary protection against age-related brain damage. Consuming
fewer calories translates into lesser production of free radicals. In addition,
glucose can damage proteins, modifying them to pro-inflammatory compounds
called AGEs (Advanced Glycosylation End Products). AGE -modulated beta-amyloid
is extremely pro-inflammatory. One way or another, Perlmutter kept returning
to the theme of reducing inflammation as a means of preventing, and possibly
even treating, Alzheimer's disease.
Apart from anti-inflammatory supplements, magnesium may also prove a
useful neuroprotector. One cause of neuron death is excess influx of calcium
ions. If magnesium is present in sufficient concentration, the resulting
“magnesium block” (magnesium is a natural calcium channel blocker) can
save the neurons.
People who have suffered head trauma, small strokes or infections affecting
the brain are especially likely to have the kind of low-grade cerebral
inflammation that makes them more susceptible to developing Alzheimer's
disease. These high-risk individuals should be made aware that they can
reduce their risk with fish oil, NSAIDs, lipoic acid, flavonoids and through
calorie restriction.
Those protective measures should be practiced by all of us. The dismal
prediction is that by the year 2030 there will be nine million Alzheimer's
victims in the United States. Some even predict that the economic burden
of Alzheimer's disease alone will be enough to bankrupt the medical system.
Such disaster can be averted through relatively simple means. It is time
to educate the public about the prevention of brain diseases.
Parkinson's
disease and “The glutathione miracle”
Perlmutter went on to discuss his approach to Parkinson's disease. It
is more than a brain disease, he said. Parkinson's is a systemic disease
as well, with the whole body involved. More specifically, Parkinson's patients
tend to be poor detoxifiers. They show low levels of glutathione not only
in the brain (especially in the dopamine-producing region of substantia
nigra), but also in the liver. This may be why exposure to pesticides and
herbicides can be so damaging to individuals with a genetic vulnerability
to Parkinson's. We all have to deal with a tremendous toxic burden, but
those who happen to be poor detoxifiers are at a special risk.
The central feature of Parkinson's is the progressive destruction of
substantia nigra, resulting in a profound deficiency of the neurotransmitter
dopamine. Mainstream treatment centers on the use of l-dopa, a precursor
of dopamine. This approach to increasing dopamine works for a limited time,
though not without severe side effects, including further brain damage.
“The very drug that's used to treat the smoke increases the fire,” Perlmutter
stated. It turns out that l-dopa reduces detoxification. L-dopa also increases
the conversion of S-adenosyl-methionine (SAMe) to homocysteine, and thus
promotes vascular disease. At the same time, it's sometimes not possible
to take patients with advanced Parkinson's off l-dopa. It may be possible,
however, to counteract the drug's side effects and increase the patient's
motor ability through a relatively simple alternative treatment.
Within less than an hour of the injection, Parkinson's patients experienced
an almost complete restoration of the ability to walk, turn around and
move their arms.
Perlmutter's holistic approach is based chiefly on the need to increase
detoxification, and thus enhance glutathione levels. The most dramatic
part of Perlmutter's presentation consisted of slides showing a profound
improvement in Parkinson's symptoms after intravenous glutathione. Within
less than an hour of the injection, Parkinson's patients experienced an
almost complete restoration of the ability to walk, turn around and move
their arms. Perlmutter calls this “the glutathione miracle.” He uses 1200
mg of injectable glutathione at first, then lowers the dose to 600 mg per
injection. The injections are given two days apart. The effectiveness of
the treatment has been validated in a controlled study. Many holistic physicians
already use intravenous glutathione as part of their treatment for Parkinson's
disease.
If the treatment is discontinued, its benefits last for up to four months
after the end of the treatment. Besides acting as a detoxifier and lowering
oxidative stress, glutathione may also enhance the sensitivity of dopamine
receptors in Parkinson's patients, Perlmutter speculated. He also mentioned
that intravenous glutathione is immediately effective against irritable
bowel syndrome and diarrhea.
Is there a more convenient way to increase glutathione levels, for longevity
in general and as part of a preventive neuroprotective protocol? It turns
out that lipoic acid is the most effective supplement for raising glutathione—especially
if it is taken together with N-acetyl-cysteine (NAC) and vitamins C and
E. In addition, the amino acid glutamine is, like NAC, an important precursor
of glutathione. Silymarin (milk thistle extract) has also been shown to
increase glutathione in the liver.
In addition, lipoic acid is known to chelate iron. The elevated levels
of free iron in Parkinson's patients increase free-radical damage and the
destruction of neurons. And, like ibuprofen, lipoic acid inhibits NFkB
and thus the production of inflammatory cytokines.
Perlmutter mentioned other helpful supplements, including CoQ10, which
enhances mitochondrial function and is known to be low in the cerebral
mitochondria of Parkinson's patients (and, interestingly, also of their
spouses). Ginkgo biloba was also discussed. Ginkgo has been shown to have
many neuroprotective properties, including the protection of brain mitochondrial
glutathione against oxidation. Ginkgo also inhibits the enzyme monoamine
oxidase B (MAO-B), and thus helps protect dopamine against quick degradation.
The drug seleginine (Deprenyl) also acts as a MAO-B inhibitor.
Predictably, there also arose some controversy over coffee, recently
shown to be protective against the development of Parkinson's disease.
Raising cyclic adenosine monophosphate (cyclic AMP—a “second messenger”
that amplifies the hormonal message) has been shown to protect against
Parkinson's.
“Caffeine dramatically increases cyclic AMP and decreases the risk of
Parkinson's,” Perlmutter said. Caffeine also competes for receptors with
adenosine, an inhibitory compound. By displacing adenosine, caffeine indirectly
increases the action of dopamine.
Perlmutter condemned the use of long-term antibiotics. Certain antibiotics
are mitochondrial inhibitors. “If you increase antioxidants, you don't
need long-term antibiotics,” he stated. He also suggested that if a patient
is put on statins, s/he ought to take supplemental CoQ10 to try to compensate
for the CoQ10 deficiency induced by the drug. (Incidentally, a recent British
study has found that statins appear to reduce the risk of dementia. As
in the case of heart disease and stroke, this may be due to the anti-inflammatory
properties of statins.)
One conference participant, an MD from England, suggested that supplementing
with Vitamin B12 can be of enormous importance in treating dementia. He
described a patient of his whose dementia virtually disappeared after treatment
with B12. Many elderly are deficient in this vitamin, crucial for brain
function. B12 also increases the oxygen-carrying capacity of red blood
cells, and helps lower homocysteine. Dr. Perlmutter agreed that B12 should
be an important part of the treatment. He also discussed magnesium as protective
against excess calcium ion influx.
In summary, current research findings suggest the following: take lipoic
acid and other antioxidants, eat fish and/or take fish oil, drink coffee
(unless you can't tolerate it) and be happy. And forget about dessert.
Calorie restriction still appears to be the most potent brain saver.
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