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DHEA
WHAT IS DHEA?
Dehydroepiandrosterone
(DHEA) is a hormone produced by the adrenal glands. A hormone is
a chemical produced in one part of the body that is carried to another
part of the body where it has a specific effect. The adrenal glands
are located on top of the kidneys.
DHEA
is a steroid, which means that it has a particular chemical structure
that looks like connected rings. DHEA has not demonstrated the same
effects as anabolic (muscle-building) steroids, but the Food and
Drug Administration has already examined the possibility of classifying
DHEA as a Schedule III drug. If this happens, it will be extremely
difficult to get DHEA.
DHEA
is the most common steroid in humans. It can be transformed in the
body into testosterone (the primary male sex hormone), estrogen
(an important female sex hormone), or other steroids.
In
normal adults, DHEA levels are highest at about age 20, and then
decrease steadily.
WHAT ARE THE
BENEFITS OF DHEA?
People
with various diseases have levels of DHEA that are unusually low.
DHEA has been used in the last thirty years or so to treat obesity,
diabetes, and lupus. It has also been found to improve sleep. Many
people who have taken DHEA report improved energy levels and a better
sense of well being.
WHY DO PEOPLE
WITH HIV USE DHEA?
Some
people with HIV take DHEA in amounts designed to restore normal
levels. This might help improve their energy levels. Several studies
have found that DHEA increases levels of IL-2, a chemical messenger
that increases the production of CD4+ (T-helper) cells. DHEA also
improves the ability of CD8+ (T-killer) cells to destroy infected
cells. DHEA may help normalize the immune system.
HOW IS DHEA
USED?
DHEA
is available in "regular" form or as DHEA-S (DHEA sulfate). The
body can convert DHEA into DHEA-S and back again.
A
blood or saliva test can measure the amount of DHEA in your blood.
This can help determine how much DHEA to take and whether your level
is where you want it to be. DHEA levels vary during the day, so
you should do each test at the same time of day.
We
do not know the best doses of DHEA for women, and it has not been
studied in children or adolescents with HIV.
WHAT ARE THE
SIDE EFFECTS?
There
are no documented side effects of DHEA at doses up to 2,500 mg per
day, except for an increase in acne, especially in women.
Some
studies suggest that people with HIV and Kaposi's sarcoma (KS) have
very high levels of DHEA. Taking more DHEA might be harmful for
these people. Check your blood or urine levels before you take DHEA.
HOW DOES DHEA
INTERACT WITH OTHER THERAPIES?
There
are no documented interactions of DHEA with other therapies. Because
DHEA occurs naturally in the body, interactions are unlikely. It
is possible that DHEA could affect the processing of drugs by the
liver, but this has not been studied.
HOW DO WE KNOW
IT WORKS?
There
is increasing scientific interest in DHEA, with well over 100 scientific
articles written in each of the last four years. However, there
have not been many studies that document health benefits in humans,
and some initial good results have not been confirmed in follow-up
studies. There is not good scientific support for taking DHEA supplements
(that is, getting more than normal amounts in your body). However,
some doctors recommend DHEA replacement, which means taking enough
DHEA to bring your levels back into the normal range.
THE BOTTOM LINE
DHEA
is a steroid hormone produced by the body. DHEA levels go down with
age, and go down even faster with some illnesses including HIV.
DHEA may help with immune function or with patients' energy levels.
It
may be helpful to take enough DHEA to bring levels up to the normal
range. This is called "replacement" therapy. Before you take DHEA,
check your blood or saliva levels.
At
this point, there are no research studies that support taking DHEA
supplements (amounts that would give you higher than normal levels).
You must check with your Doctor before starting any treatment
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