Anabolic steroidOne major class of lipids is the steroids, which have structures totally different from the other classes of lipids. The main feature of steroids is the ring system of three cyclohexanes and one cyclopentane in a fused ring system as shown below. There are a variety of functional groups that may be attached. The main feature, as in all lipids, is the large anabolic steroids chemistry of carbon-hydrogens which make steroids non-polar. Steroids include such well known compounds as cholesterol, sex hormones, birth control pills, cortisone, and anabolic oral turinabol bd 10 mg. The best known and most anabolic steroids chemistry steroid in the body is cholesterol.
The male hormone testosterone, a steroid, is repsonsible for the build up of muscles in men. Since this is a well known fact, athletes try to take extra testoserone or other similar substances which will presumably hence this effect. Testosterone can not be taken orally, but must be injected; and has several other undesirable side effects.
Testosterone - Chime in new window. Anabolic steroid use can lead to a number of dangerous side effects including, lowered levels of high-density lipoprotein cholesterol, which benefits the heart, and lowered levels of harmful low-density lipoprotein; stimulation of prostate tumors; clotting disorders, and liver problems. Psychologically, anabolic steroids can make a person more aggressive. Cosmetic changes may include baldness, increased body hair, acne, and breast growth in men.
For these reasons, anabolic steroids which are synthetic derivatives of the naturally occurring male hormone, testosterone, have been developed. Substances that mimic the male sex hormones known as androgens. There are more than different anabolic steroids which vary in structure, duration of action, relative effects and toxicities.
Steroids require prescriptions for medical use. However due to the illegal distribution from US pharmacies, smuggling from other countries, and synthesis in US laboratories, anabolic steroids can be easily obtained for abuse. Another way to increase testosterone concentration is to use a prohormones which the body converts to testosterone.
One such prohormone is 4-androstenedione, also known as "andro". Androstenedione was first developed in the 's by East German scientists to try to enhance their athletes' Olympic performances. These prohormones are legally available and do not have the same side effects as the anabolic steroids. Anabolic steroids and andros are banned in the Olympics, professional football, and college athelitics. Mark McGwire has used andro, which is allowed in baseball.
See also Sex Homones. Testosterone - Chime in new window Anabolic steroid use can lead to a number of dangerous side effects including, lowered levels of high-density lipoprotein cholesterol, which benefits the heart, and lowered levels of harmful low-density lipoprotein; stimulation of prostate tumors; clotting disorders, and liver problems.
Click for larger image. Structures of Anabolic Steroids: Some examples of the anabolic steroids are given in the graphic on the left. Which functional groups are in testosterone? Which chemical reaction at C 17 would change "andro" into testosterone? Answer Reduction is the reaction to change a ketone into an alcohol.