5β-Pregnane is the parent of the progesterones, pregnane alcohols, ketones, and several adrenocortical hormones and is found largely in urine as a metabolic product of 5β-pregnane compounds. ==Pregnanes== Pregnanes are steroid derivatives with carbons present at positions 1 through 21. Most biologically significant pregnane derivatives fall into...
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http://en.wikipedia.org/wiki/Pregnane
Parent hydrocarbon of two series of steroids stemming from 5a-pregnane (originally allopregnane) and 5b-pregnane (17b-ethyletiocholane). 5b-Pregnane is the parent of the progesterones, pregnane alcohols, ketones, and several adrenocortical hormones and is found largely in urine as a metabolic product of 5b-pregnane compounds. For structure, see ste...
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http://www.encyclo.co.uk/local/20973
(preg´nān) a crystalline saturated steroid hydrocarbon; β-pregnane is the form from which several hormones, including progesterone, are derived; α-pregnane is the form excreted in the urine.
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http://www.encyclo.co.uk/local/21001
Type: Term Pronunciation: preg′nān Definitions: 1. Parent hydrocarbon of two series of steroids stemming from 5α-pregnane (originally allopregnane) and 5β-pregnane (17β-ethyletiocholane). 5β-Pregnane is the parent of the progesterones, pregnane alcohols, ketones, and several adrenocortical hormones and is found largel...
Found on
http://www.medilexicon.com/medicaldictionary.php?t=71817
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