Glutathione(GSH)
and Undenatured Whey Protein in HIV-AIDS
Copyright
© 2002 1Whey2Health
Reproduction Prohibited
How do Glutathione (GSH) and whey protein help in HIV-AIDS ?
Free
radicals have been linked to much of the immune system destruction
caused by HIV.
A
wide range of antioxidants have been shown to protect immune function,
and nutrients that maintain cellular levels of glutathione are
especially important in preventing or slowing the progression
of HIV infection.
►
HIV
depletes the cells of Glutathione
It
is now widely understood that AIDS is associated with a deficiency
of glutathione that leads to the generation of enormous levels
of oxidative stress that damage and kill otherwise-healthy cells
throughout the body (1).
HIV
has been shown to induce cellular depletion of glutathione. Low
glutathione may be especially important in HIV, as there is evidence
that the Tat protein produced by this virus can abnormally reduce
glutathione levels (2).
This
is associated with free radical injury to numerous immune-system
components. T-helper lymphocytes require adequate levels of glutathione
to function normally, and HIV induces oxidative stress that depletes
T-helper cells of glutathione (3).
Numerous
studies reveal that the lack of glutathione causes lymphocytes
to become weak in their immunological "efficiency," thereby contributing
to the immune cell impairment characteristic of AIDS (4).
►
Glutathione (GSH) can protect the immune
system from oxidative stress
Numerous
findings have supported the theory that oxidative stress is
critical to the pathogenesis of HIV infection. (5).
When
your body comes in contact with a pathogen or disease organism,
it stimulates the development of an immune response. This
oxygen-requiring process produces free radicals as the by-products
of metabolism, and depletes the glutathione (GSH) in lymphocytes
(mononuclear or white blood cells responsible for mounting an
immune response).
The intact
immune system appears to require a delicate balance between pro-oxidant
and antioxidant conditions, maintained by a limited and well-regulated
supply of cysteine. This balance is obviously disturbed in HIV
infection and may contribute to the pathogenesis of AIDS. (26)
Glutathione...is
the major defense of CD4 T-cells cells against oxidative
stress. Depletion of intracellular GSH (Glutathione)
has also been shown to decrease the proportion of CD8+ cells (i.e.
increases the CD4/CD8 ratio) and inhibit cytotoxic T lymphocyte
(CTL) activity (5).
Oxidative
stress may lead to enhanced HIV replication in infected cells
and may also aggravate the immunodeficiency by reduction of cellular
immunity and possibly by increased programmed cell death (apoptosis)
of lymphocytes (6).
This
suggests that supplementation with nutrients to boost cellular
glutathione is crucial to protect against a primary mechanism
by which HIV destroys immune function.
Undenatured
whey protein provides the components that rapidly replinish
the glutathione (GSH)
in lymphocytes during this GSH-depleting development of the
immune response. Less hampered by oxyradicals, the lymphocyte
can thus fully react with an optimal immune response to the disease
organism (or antigenic stimulus).
Oxidative
stress has also been implicated in HIV-related muscle wasting
and weight loss, as well as dementia and neuropathy. It may also
play an important role in the genesis of cellular DNA damage and,
in this context, may be related to HIV-associated malignancies
and disease progression (7).
►
Glutathione
(GSH) inhibits HIV replication and decreases viral load
High
levels of cellular glutathione severely limit any virus or bacteria's
ability to enter cells and replicate. The infection is subsequently
flushed from the system by normal means, which reduces viral load.
A
number of studies have shown that high levels of glutathione in
mononuclear cells can inhibit HIV replication. Glutathione (GSH)
has been shown to interfere with late stages of virus replication
(8).
Glutathione was also shown to inhibit the reverse transcriptase
(RT) process of HIV-1(9), and to inhibit the expression
of induction of HIV-1 (p-24) antigenic proteins required to form
the viral coat. (10).
Clinical
data and the in vitro demonstration that undenatured whey protein
inhibits the HIV virus while increasing GSH synthesis strongly
suggest that an antagonistic relation exists between the virus
and cellular GSH (11).
Undenatured
whey protein was also seen to inhibit the formation of synctia
(the cellular "bridges" that allow the virus to be transmitted
between immune cells), thereby preventing transmission of the
virus between infected and non-infected cells (12).
►
Replenishing cysteine can
boost non-specific immune responses
HIV-infected
persons at all stages of the disease have, on the average, decreased
plasma cystine and cysteine and decreased intracellular glutathione
levels.
There is evidence
to suggest that the HIV-induced cysteine deficiency is not only
responsible for the 'cellular dysfunction' but also for the abnormal
activation which is exemplified by the lymphadenopathy syndrome
and abnormal antibody production. (25)
Macrophages
- the scavengers of the immune system - are another component
of the immune system which relies on glutathione. These large
immune cells protect the body by swallowing and destroying foreign
particles and cancer cells.
The
production of a substance called leukotriene C by macrophages
is essential for them to reach invading organisms. When glutathione
levels are low, the macrophages' production of leukotriene C is
inhibited, resulting in diminished macrophage function.
Clinical
trials have shown that the impairment of immunological functions
in HIV positive patients results at least partly from cysteine
deficiency (13). HIV-induced cysteine depletion is a
novel mechanism by which a virus destroys the immune defense of
the host and escapes immune elimination.
Supplementation
with a "cysteine-delivery system" could replenish the
body's requirements of cysteine and reconstitute immune function.
Glutathione
has also been shown to enhance the movement (locomotion) of white
blood cells called neutrophils to the site of injury or infection
and decrease the number of bacterial colonies present there, resulting
in improved survival.
(14).
Non-specific
immune responses are important in the immune system's defenses
against opportunistic pathogens.
►
Higher glutathione levels can improve survival
in HIV-AIDS
Studies
showing that low GSH levels both promote HIV expression and impair
T cell function suggested a link between GSH depletion and HIV
disease progression. GSH deficiency has been shown, in numerous
studies, to be a key determinant of survival in HIV disease.
A
study by Stanford University found
that for persons with a CD4 count under 200, an abnormally low
level of glutathione - inside CD4 T-cells in the blood - was remarkably
predictive of poor survival. The researchers at Stanford showed
that those who have lower levels of glutathione inside cells suffer
faster progression. (15)
Low
glutathione levels in CD4 T-cells mean increased risk of death.
The study "provides
the first clear indication that GSH deficiency plays a pivotal
role in determining how quickly the final stages of HIV disease
progress." Clinical
trials assessing impact of NAC administration on long-term HIV
patient survival are the next logical step in research on the
subject. (15)
Supplementation
with whey proteins was also shown to persistently increase plasma
glutathione levels in patients with advanced HIV-infection. It
is possible that this "biochemical efficacy" of whey proteins
may translate into a more favourable course of the disease (16).
►
Undenatured
whey protein improves muscle wasting, weight loss and fatigue
Many
people living with HIV/AIDS (PHAs) experience muscle loss or wasting.
This leads to weakness, weight loss, fatigue and thinning of muscular
areas of the body. Muscle wasting in HIV is still not well understood,
but it has been linked to abnormally low cysteine levels and loss
of sulfur.
Abnormally
low plasma cystine levels have been found in the late asymptomatic
stage of HIV infection and several other diseases associated with
progressive loss of skeletal muscle mass (4). The peripheral
tissue was confirmed as the site of massive cysteine loss in HIV
infection (Breitkreutz R et al.)
Whey,
a component of milk, is a popular diet supplement among AIDS patients
because it improves weight gain and provides a protein-rich energy
boost while containing little lactose. Whey protein, because of
its "biological efficacy," is an easily digestible source
of protein.
A
recent open label trial was conducted by Louisa Pacheco, M.D.
and her colleagues on the therapeutic use of an undenatured
whey protein with HIV/AIDS patients at the Tidewater AIDS
Crisis Task Force in Norfolk, Virginia. (18)
The
AIDS patients who were on the bioactive-cysteine rich nutraceutical,
gained an average of 11.9 lbs in 8 weeks. In contrast, the 20
matched non-participating patients experienced an average weight
loss of 8.5 lbs and remained non-adherent with anti-retroviral
therapy.
In
a pilot study, whey protein was shown to improve the nutritional
status of children with AIDS and wasting syndrome (19).
One
study in PHAs has shown that weight returned to healthier levels
after three months of whey protein supplementation. In another
study combining exercise, anabolic steroids, nutritional counselling
and whey protein, a significant increase in body cell mass (a
measure of muscle tissue) was seen.
Many
anecdotal reports do tell of gains in muscle mass in PHAs taking
whey protein. According to the American buyers' club DAAIR (Direct
Access Alternative Information Resources), a number of clients
taking whey protein and glutamine have gained lean muscle mass
and experienced improvements in their symptoms of fatigue.
In
a small pilot study conducted by Dr Bounous and others with HIV-seropositive
men, there was a dramatic rise in the levels of GSH in the mononuclear
cells of all the study participants, and most participants reached
ideal bodyweight.(20)
The
increase in bodyweight is as important as the improvement in GSH
status because a loss in bodyweight is strongly related to higher
morbidity in AIDS patients and a decreased ability to fight off
opportunistic infections. (21,22)
►
Undenatured whey protein
regulates digestive function and improves adherence to HAART
in PHAs
Glutathione
plays an important role in maintaining cellular integrity throughout
the body, including the epithelial lining of the intestines.
In AIDS patients, chronic inflammation and elevated levels of
cytokines seem to be associated with reduced levels of glutathione
(GSH) (23).
Part
of HIV disease is not just the virus, but the damage done to
tissues by an overactive inflammatory response. The intestinal
impairment caused by glutathione deficiency often manifests
as inflammatory bowel disease, a common problem in AIDS patients
that prevents effective absorption of vital nutrients into the
body (24).
Undenatured
whey protein by some unknown mechanism, appears not only
to inhibit wasting syndrome but also to stop the life-threatening
diarrhea that AIDS patients so often develop. The removal of
lactose may be a particular advantage for PHAs, who are often
lactose intolerant.
In
a recent open label trial patients taking whey protein achieved
significant reduction in gastrointestinal side effects (diarrhea,
nausea, vomiting, impaired appetite), as well as improved energy
levels.
Additionally,
they were able to adhere to their HAART medications as prescribed,
which they had previously been unable to do. In fact, patients
using whey protein became 100% adherent to HAART by the end
of the 8- week trial. (18)
►
Undenatured whey protein is
a safe, effective way to provide glutathione precursors to PHAs
Although
a healthy diet is the best way to insure proper nutrient intake,
people with HIV frequently have depleted levels of many important
vitamins and antioxidants, and such individuals may well require
additional supplementation.
Cysteine
and glutathione supplements are mainly broken down in the gut,
are poorly absorbed into the bloodstream, and increase cell
glutathione only marginally. Even with intravenous administration,
these drugs do not significantly increase tissue glutathione
levels, and have side-effects and toxicity that severely limits
their usefulness in the treatment of chronic disease.
Pharmaceutical-grade
preparations such as N-acetyl-cysteine (NAC) have dose-limiting
toxic profiles, significant side effects, and a relatively short
half-life. If the liver is in a weakened state, it may not be
able to be convert NAC to glutathione. Taking NAC under these
conditions may further suppress lymphocyte functions.
But
the cysteine=cysteine dipeptide
called cystine in undenatured
whey protein enters the blood with no digestion, and donates
two cysteine molecules in the cells, where they are used to
create glutathione.
"Unlike
specific antiretroviral drugs which may induce mutation, hence
resistance of the virus to therapy, the normalization of the
the lymphocytic glutathione levels and redox status through
a cysteine selivery system, represents a totally different
approach through which the natural cellular defense system
is boosted and against which the virus cannot apparently build
up resistance by mutation."
- Dr. Gustavo Bounous
However,
as Dr. Bounous is clear to point out, he does not see whey
protein concentrate as an alternative to traditional treatments,
but as a very effective adjunct to traditional therapies for
a wide range of diseases.
Most people with AIDS suffer from malnutrition due to massive
doses of anti-viral drugs - if they don’t eat, their bodies
cannot absorb the drugs. Whey protein is a combination of
proteins that are relatively easy to digest for people living
with HIV-AIDS (PHAs).
Supplementation
with glutathione in the form of undenatured
whey proteins can return glutathione levels to normal
while improving the absorption of vital nutrients.
By
taking vitamin and mineral supplements aggressively, PHAs
substantially increase their chances for a longer life.
"If
there is one survival tool every HIV(+) person should consider
it is taking dietary supplements that increase glutathione
production." - Michael Mooney, Author, Built
to Survive
Media Reports on Glutathione and Whey Protein in HIV-AIDS
When Therapies Fail: One AIDS Activist's Fight for Better
Clinical Options
Neenyah Ostrom (July 11,
1999)
There
are a lot of people who can survive HIV for many years with
just nutraceutical support...... glutathione ratios in many
patients plummet. One of those other substances that Miller
has observed to produce important effects in AIDS patients
is a glutathione-boosting nutraceutical. Glutathione
acts as a powerful antioxidant...... If it's used with other
substances that stabilize the patient's metabolism, (it) can
save patients' lives, literally, because it helps stop them
from developing wasting and the whole host of problems that
accompany wasting syndrome.
Whey,
Immunity And AIDS
Life Extension Magazine
Bounous
is probably the most prolific and best known researcher in
the world today regarding the use of whey protein concentrate
for the prevention and treatment of cancer, AIDS
and immune suppression. He has found a substantial reduction
in virus activity in cells with an improved glutathione status
after the ingestion of whey protein concentrate. One case
in which
Bournous
used whey protein concentrate to treat AIDS involved an entire
infected family. The wife experienced a drop in viral load
from 19,000 to just 3,000 in a matter of months. Her CD4 helper
T cells-the immune cells most affected by the HIV virus-rose
slightly. The son in the family had a tenfold reduction in
viral load, while the husband seemed to be the only semi-nonresponder
in the family, with a slight drop in viral load and little
change in CD4 counts. The scientific study quoted the here
was also published in the book, Oxidative
Stress in Cancer, AIDS, and Neurodegenerative Diseases
edited by Luc Montagnier , René Olivier and Catherine Paquier
Get
High on Glutathione
POZ May 2000
Oxidative
stress, an ever-present problem in HIVers, can also be created
by a long list of stressors, including all kinds of drugs.
The more stressors you have, the more glutathione and
other antioxidants you need. Yet in most HIVers, these
nutrients are deficient because the body burns through them
to power its immune response, repair and replace damaged
and destroyed cells, and break down medications. Research
shows that low levels of glutathione promote CD4-cell suicide
(apoptosis). In addition, glutathione is the main detoxifier
used by the liver to break down anti-HIV meds, including
the Crixivan (indinavir), d4T (Zerit) and delavirdine (Rescriptor).
Inadequate glutathione can compromise that liver capacity.
Whey
to Go
POZ Magazine (02/97) P. 102; Burroughs, Carola
Whey,
a component of milk, is a popular diet supplement among
AIDS patients because it improves weight gain and provides
a protein-rich energy boost while containing little lactose.
Laboratory studies have shown that a new whey protein concentrate...
can inhibit HIV replication while also stimulating the production
of glutathione, an amino acid that helps control progression
of the virus. Small trials of the treatment in HIV-positive
children and adults have demonstrated its benefit.
Whey
Eyed As AIDS Blocker
The
Associated Press - 30 January 1996
Whey,
the watery dairy product best known from the tale of Little Miss
Muffet, might provide a new way to keep the AIDS virus from infecting
people during sex. A
modified version of a protein extracted from whey blocked the
AIDS virus from infecting cells in the test tube, researchers
report. For the new work, scientists modified a whey protein called
beta-lactoglobulin to produce a substance they named B69. They
found that B69 latched onto a protein structure called CD4 on
the surface of cells. That kept the AIDS virus from using CD4
as an entryway into the cells. Someday,
B69 might be put into an over-the-counter product, perhaps in
combination with a virus-killing compound, he said. Neurath said
preliminary work suggests B69 might block other cell sites that
have been proposed as alternative entryways for HIV.
Treatment
Models from India - Interview with Shashank Joshi, M.D.
John S. James, AIDS Treatment News Issue #339 March 17, 2000
"We
are planning to study a nutritional supplement derived from whey
protein, as a source of glutathione. It is believed that mitochondrial
toxicity, which the nucleoside analog drugs and hydroxyurea may
have, is mediated through the glutathione pathway. If you give
patients a natural source of glutathione, maybe this problem can
be prevented, and you may not see the liver toxicity, lactic acidosis,
or other problems which might otherwise occur. We want to see
if improved nutrition can improve the catabolic cachexia [wasting],
and also we want to look for any antiretroviral effect. I understand
that a small but significant number of patients has dropped their
viral load by a log, after treatment with nutritional regimens
designed to support the immune system."
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More
References:
Photograph
of HIV - Courtesy CDC/Dr. Edwin P. Ewing, Jr.