Pregnadienediols. Dihydroxypregnadienes . Doubly unsaturated pregnane derivatives with two hydroxy groups substituted anywhere on the rings or side chains. . 0.80
Pregnadienetriols. Trihydroxypregnadienes . Doubly unsaturated pregnane derivatives substituted with three hydroxy groups anywhere within the ring structure or side chains. . 0.78
Pregnanes. Saturated derivatives of the steroid pregnane. The 5-beta series includes PROGESTERONE and related hormones; the 5-alpha series includes forms generally excreted in the urine. . 0.69
Pregnancy. Pregnancies . Gestation . The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. . 0.61
Pregnanediones. Dioxopregnanes . Diketopregnanes . Pregnane derivatives in which two side-chain methyl groups or two methylene groups in the ring skeleton (or a combination thereof) have been oxidized to keto groups. . 0.58