Translations:Lipid/26/en: Difference between revisions

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Message definition (Lipid)
Sterols are [[steroid]]s in which one of the hydrogen atoms is substituted with a [[hydroxyl group]], at position 3 in the carbon chain. They have in common with steroids the same fused four-ring core structure. Steroids have different biological roles as [[hormone]]s and [[signaling molecules]]. The eighteen-carbon (C18) steroids include the [[estrogen]] family whereas the C19 steroids comprise the [[androgen]]s such as [[testosterone]] and [[androsterone]]. The C21 subclass includes the [[progestogens]] as well as the [[glucocorticoid]]s and [[mineralocorticoids]].{{rp|749}} The [[secosteroid]]s, comprising various forms of [[vitamin D]], are characterized by cleavage of the B ring of the core structure.

Sterols are steroids in which one of the hydrogen atoms is substituted with a hydroxyl group, at position 3 in the carbon chain. They have in common with steroids the same fused four-ring core structure. Steroids have different biological roles as hormones and signaling molecules. The eighteen-carbon (C18) steroids include the estrogen family whereas the C19 steroids comprise the androgens such as testosterone and androsterone. The C21 subclass includes the progestogens as well as the glucocorticoids and mineralocorticoids.:749 The secosteroids, comprising various forms of vitamin D, are characterized by cleavage of the B ring of the core structure.