Plasma gonadotrophins and progesterone concentrations during various degrees of underfeeding in pregnant mice
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منابع مشابه
Progesterone concentrations in peripheral plasma of non-pregnant and pregnant grey squirrels (Sciurus carolinensis).
Plasma concentrations of progesterone in non-pregnant female grey squirrels were never greater than 3.2 nmol/l and no significant differences were found between levels in anoestrous, pro-oestrous and oestrous animals. During pregnancy, plasma concentrations of progesterone increased significantly and reached a maximum level of 318 nmol/l at around day 35 of the 44 day period of gestation. After...
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Plasma levels of progesterone were determined from serial samples taken from 2 black bears over 3 consecutive fall periods. Each animal was pregnant during the 1st and 3rd years. Variations in progesterone levels were seen between animals and within each animal between pregnancies. Average baseline levels during the mid-to-late preimplantation period were 5.0-12.5 ng/ml and increased 2-3 fold a...
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Hysterectomized pseudopregnant mice had plasma progesterone concentrations on Days 6, 8, 10 or 12 after mating that were greater (P less than 0.05) than those of intact pseudopregnant mice and lower (P less than 0.01) than those of pregnant mice. Concentrations of 13,14-dihydro-15-keto-prostaglandin F-2 alpha on Days 6, 7, 8, 9 or 10 after mating were lower (P less than 0.05) in pregnant and hi...
متن کاملPlasma 170H-progesterone concentrations in newborn infants
Plasma concentrations of 170H-progesterone were determined in 60 normal newborn infants aged between 3 and 36 hours. Mean levels decreased rapidly during this time after removal of the placental contribution of this steroid. A further 70 normal infants, studied between ages 2 and 7 days, showed a mean plasma 170H-progesterone concentration of 3.5 nmol/l (1.2 ng/ml). By comparison, plasma concen...
متن کاملPlasma 17OH-progesterone concentrations in newborn infants.
Plasma concentrations of 17OH-progesterone were determined in 60 normal newborn infants aged between 3 and 36 hours. Mean levels decreased rapidly during this time after removal of the placental contribution of this steroid. A further 70 normal infants, studied between ages 2 and 7 days, showed a mean plasma 17OH-progesterone concentration of 3.5 nmol/1 (1.2 ng/ml). By comparison, plasma concen...
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ژورنال
عنوان ژورنال: Reproduction
سال: 1979
ISSN: 1470-1626,1741-7899
DOI: 10.1530/jrf.0.0560587