Cholesterol esters and steroidogenesis in pig corpora lutea
نویسندگان
چکیده
منابع مشابه
Comparison of induced corpora lutea from prepuberal gilts and spontaneous corpora lutea from mature gilts: in vitro progesterone production.
Prepuberal (P) gilts were induced to ovulate with pregnant mare serum gonadotropin followed 72 h later by human chorionic gonadotropin (hCG). Three P gilts and three mature (M) gilts each were ovariectomized on d 10, 14, 18, 22 and 26 (d 0 = day of hCG for P gilts and onset of estrus for M gilts). Gilts ovariectomized on d 14, 18, 22 and 26 were hysterectomized on d 6 to ensure maintenance of t...
متن کاملFormation and maintenance of corpora lutea in laboratory animals.
T HE past decade has witnessed a revival of interest in the mammalian corpus luteum. The availability of new techniques is in part responsible but a more important factor has been the increasing use of cows, sheep, pigs and even women as experimental species. The use of these mammals has uncovered, to a much greater degree than was expected, a diversity in the physiology of the corpus luteum, a...
متن کاملComparison of induced corpora lutea from prepuberal gilts and spontaneous corpora lutea from mature gilts: hydroxysteroid dehydrogenase activity.
The activity of hydroxysteroid dehydrogenases was histochemically quantified in corpora lutea (CL) from prepuberal gilts induced to ovulate and mature gilts. Prepuberal (P) gilts, 120 to 130 d of age were induced to ovulate with 1,500 IU pregnant mare serum gonadotropin (PMSG) followed 72 h later by 500 IU human chorionic gonadotropin (hCG). Three P gilts and three mature (M) gilts each were ov...
متن کاملSterols 1. Cholesterol and Cholesterol Esters
In animal tissues, cholesterol (cholest-5-en-3β-ol) is by far the most abundant member of a family of polycyclic compounds known as sterols (see also our web pages on plant sterols, oxysterols, etc.). It can also be described as a polyisoprenoid or a triterpene because of its biosynthetic origin. It was first recognized as a component of gallstones as long ago as 1770, while the great French li...
متن کاملThe relationship between day of formation and functional life span of induced corpora lutea in the pig.
Corpora lutea induced in pigs on Day 6 regressed with the naturally formed corpora lutea towards the end of the cycle. Hormonal induction of corpora lutea on Days 8, 10 or 16 significantly prolonged the cycle despite involution of the original corpora lutea about 16 days after ovulation. The interval between the exogenous administration of hcg and the appearance of the next oestrus varied with ...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1971
ISSN: 0014-5793
DOI: 10.1016/0014-5793(71)80562-8