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Testosterone stearate, also known as testosterone octadecanoate, testosterone 17β-stearate, and androst-4-en-17β-ol-3-one 17β-stearate, is an injected anabolic-androgenic steroid (AAS) and an androgen ester – specifically, the C17β stearate (octadecanoate) ester of testosterone – which was never marketed.
The metabolic clearance rate of a steroid is defined as the volume of blood that has been completely cleared of the hormone per unit time. The production rate of a steroid hormone refers to entry into the blood of the compound from all possible sources, including secretion from glands and conversion of prohormones into the steroid of interest ...
The name mineralocorticoid derives from early observations that these hormones were involved in the retention of sodium, a mineral.The primary endogenous mineralocorticoid is aldosterone, although a number of other endogenous hormones (including progesterone [1] and deoxycorticosterone) have mineralocorticoid function.
The pharmacology of estradiol, an estrogen medication and naturally occurring steroid hormone, concerns its pharmacodynamics, pharmacokinetics, and various routes of administration. [ 1 ] [ 2 ] [ 3 ] Estradiol is a naturally occurring and bioidentical estrogen, or an agonist of the estrogen receptor , the biological target of estrogens like ...
Estradiol valerate is a synthetic estrane steroid and the C17β valerate (pentanoate) fatty acid ester of estradiol. [ 23 ] [ 24 ] It is also known as estradiol 17β-valerate or as estra-1,3,5(10)-triene-3,17β-diol 17β-pentanoate.
Abiomed's so-called recall of some models of its Impella Left Sided Blood Pumps, used in some high-risk heart procedures to provide short-term support, was because of the possibility they could ...
Esterification of steroids with fatty acids was developed to prolong the duration of effect of steroid hormones. [4] By 1957, more than 500 steroid esters had been synthesized, most frequently of androgens. [4] The longer the fatty acid chain, up to a certain optimal length, the longer the duration when prepared as an oil solution and injected. [4]
The general structure of a cardiac glycoside consists of a steroid molecule attached to a sugar and an R group. [4] The steroid nucleus consists of four fused rings to which other functional groups such as methyl, hydroxyl, and aldehyde groups can be attached to influence the overall molecule's biological activity. [4]