Category: D

Dual energy X-ray absorptiometry (DEXA) is used to estimate bone density and soft tissue composition. Bone density as a fraction of the fat free mass can be distinguished and quantitated using this method. The most complete and accurate imaging technique for measuring bone density. DEXA is a painless procedure that uses very small amounts of…

Heavy water contains two molecules of deuterium and one molecule of oxygen. An isotope of water in which hydrogen has been displaced by its isotope, deuterium. Its properties differ from ordinary water in that it has higher freezing and boiling points and is incapable of supporting life.  

A selective H1-preceptor antagonist that serves as an antihistamine.  

An enzyme that introduces double bonds into a newly synthesized fatty acid.  

Combination of substances with different sites of action and interaction between the components.  

A nucleoside containing cytosine (a pyrimidine) and deoxyribose.  

A nucleoside containing adenine (a purine) and deoxyribose.  

A saccharide (sugar) produced by replacement of an OH group by H.  

To disrupt the native conformation of a polymer. To eliminate the inherent characteristics of a substance or to refine its coarse texture. To make a substance unsuitable for human consumption.  

A metabolic intermediate in the pathway for testosterone synthesis. It is produced by the adrenals and the gonads. Dehydroepiandosterone (DHEA) is a metabolic steroid precursor to testosterone. As such, it has received a great deal of attention as a potential ergogenic aid that could elevate circulating levels of testosterone and produce increases in lean body…