For
the last few months, discussion of steroids has dominated
sports columns. While there is good reason to be concerned
about the misuse of “steroids” as performance-enhancing
substances, using the term steroids indiscriminately is
misleading. Most people have
used a steroid at some time in their life, whether it was
cortisone for a rash or an inhaler containing a steroid
for the treatment of asthma, and have not used a performance-enhancing
steroid. There are many different types of steroids, and
they all have different effects on the body and appropriate
uses in medical treatment. This review serves to name the
three main groups of steroids, describe their uses/misuses,
and important side effects.
WHAT
ARE THE DIFFERENT TYPES OF STEROIDS?
Corticosteroids
Produced naturally by the adrenal
glands, this group of hormones has many different functions
which influences metabolism, fluid and salt balance, and
the bodies' response to inflammation and stress [1].
Estrogens
and Progestogens The group of hormones
that are important for sexual maturation in women, maintaining
the female reproductive system, and in pregnancy [1].
Androgens
The androgens, also called the anabolic-androgen
steroids or simply “ anabolic steroids
”, include testosterone and synthetic substances
related to testosterone. This group is the most notorious
of the three groups discussed here because of their unapproved
use in sports. The term anabolic-androgen refers to the
two main effects that testosterone and its synthetic relatives
have. Anabolic refers to the drug's effects
on building skeletal muscle. Androgenic refers
to the drug's effects on the growth and development of the
male reproductive tract and the development of secondary
sexual characteristics like facial hair and deepening of
the voice [2].
WHY
DO PEOPLE USE …?
Corticosteroids
The most common use of this group
is in reducing the inflammatory response seen in conditions
such as rheumatoid arthritis, osteoarthritis, asthma and
certain skin conditions. Corticosteroids can be used briefly
or chronically depending on the condition.
These
steroids are found in creams and ointments for the treatment
and/or control of rashes and itching (i.e. hydrocortisone).
They are also found in oral forms such as prednisone and
injectable forms such as decadron and solumedrol. Inhalers
used in the treatment of asthma and emphysema may contain
a corticosteroid (i.e. fluticasone or beclomethasone) [1].
Estrogens
and Progestogens The most
common use of this group is in providing contraception while
it is also used frequently in postmenopausal hormone therapy
and in treating osteoporosis. Replacement therapy in patients
deficient in either hormones is also common [1].
Androgens
Testosterone is the most common form
of this group and is approved by the FDA (Food and Drug
Administration) for use in men who cannot produce the steroid
on their own and in certain types of female breast cancer.
Testosterone is commonly given as a cream or patch that
is applied to the skin.
The
non-approved uses of anabolic-androgenic steroids are centered
on athletic performance enhancement and cosmetic reasons.
The desire to obtain more muscle mass is common in many
sports and increasingly seen in younger individuals. The
preparations used for muscle gain can be given as an injection
into muscle, applied as a cream or given by mouth.
WHAT
ARE THE SIDE EFFECTS?
Corticosteroids
With brief use there may be difficulty
sleeping (insomnia) and there may be an elevation in blood
sugar and/or blood pressure. Chronic use may result in more
significant side effects including weight gain, muscle weakness,
decreased resistance to infections, and osteoporosis [1].
Estrogens/Progestogens
The most common side effects include
breast tenderness and weight changes while the more serious
and less frequent side effects include blood clots, cardiovascular
disease, and hastening the progression of breast and/or
endometrial cancer [1].
Androgens
The side effects of anabolic-androgenic
steroid abuse are numerous as the doses commonly used for
muscle growth are far greater than those used in replacement
therapy. The side effects include undesirable body changes
such as breast development and genital shrinking in men,
masculinization of the body in women, and acne and hair
loss in both sexes.
Use
of anabolic-androgenic steroids may be associated with psychologic
and behavioral changes, including significant mood swings,
aggressiveness, and paranoid delusions [2] .
Because
of their illegal nature, there are few studies investigating
the risks of anabolic-androgenic steroids. However, isolated
reports have suggested that there is a higher risk of heart
attacks, strokes, and liver disease associated with these
steroids [2]. Anabolic-androgenic steroid users who share
needles when they inject steroids are at risk for contracting
infectious diseases such as HIV/AIDS, hepatitis B and C.
ARE
THERE ANY SPECIFIC SIDE EFFECTS OF ANABOLIC-ANDROGENIC STEROIDS
IN CHILDREN?
They
may include early closure of the growth plates in long bones,
early puberty, and damage to the reproductive organs including
the testicles [1].
Brian
Bast, D.O.
Dept.
of Physical Medicine and Rehabilitation
Mount
Sinai Medical Center
References:
- Lippincott's
Illustrated Reviews: Pharmacology , Second Edition.
Mary Mycek, R. Harvey, and P Champe. Lippincott-Raven
Publishers, Philadelphia, PA 1997.
- Thiblin, I and
Peterson A. Pharmacoepidemiology of anabolic androgenic
steroids: a review. Fundamental and Clinical Pharamacology
2005;19(1):27-44.
For
more information on this and related topics please review
the following sites:
www.nida.nih.gov/
www.findarticles.com
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