PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8462454-1 1993 We have investigated the mechanisms by which insulin and insulin-like growth factor-I (IGF-I) regulate the synthesis of progesterone by swine ovary granulosa cells. Progesterone 120-132 insulin Sus scrofa 45-52 8462454-2 1993 Analysis of the cell density dependence of the effects of insulin and IGF-I showed that the induction of progesterone synthesis by these growth factors is consistent with an autocrine or paracrine model of action, which involves the insulin- and IGF-I-stimulated release of a soluble factor(s) into the culture medium. Progesterone 105-117 insulin Sus scrofa 58-65 8462454-2 1993 Analysis of the cell density dependence of the effects of insulin and IGF-I showed that the induction of progesterone synthesis by these growth factors is consistent with an autocrine or paracrine model of action, which involves the insulin- and IGF-I-stimulated release of a soluble factor(s) into the culture medium. Progesterone 105-117 insulin Sus scrofa 233-240 8462454-6 1993 Pertussis toxin treatment, shown to inhibit the generation of inositol phosphoglycans in other systems, was found to inhibit the effects of insulin on progesterone synthesis in granulosa cells. Progesterone 151-163 insulin Sus scrofa 140-147 8462454-7 1993 Finally, the stimulatory effects of insulin and IGF-I on progesterone synthesis by intact granulosa cells were markedly inhibited by the addition of antiinositol phosphoglycan antibodies to the culture medium. Progesterone 57-69 insulin Sus scrofa 36-43 8462454-8 1993 Based on these observations, we propose that the release of inositol phosphoglycans into the extracellular medium plays an important role in the signaling mechanisms by which insulin and IGF-I regulate the synthesis of progesterone in swine ovary granulosa cells. Progesterone 219-231 insulin Sus scrofa 175-182 1649742-6 1991 At the latter time, TNF alpha significantly suppressed insulin- and insulin- plus FSH-stimulated progesterone accumulation, with respective ID50 values of 0.08 +/- 0.008 and 0.06 +/- 0.014 nM, but did not affect basal progesterone accumulation or DNA content. Progesterone 97-109 insulin Sus scrofa 55-75 1649742-14 1991 Granulosa cells are susceptible to the inhibitory actions of TNF alpha on FSH- and insulin-supported progesterone biosynthesis and cAMP accumulation. Progesterone 101-113 insulin Sus scrofa 83-90 3516657-1 1986 Insulin synergistically amplified the stimulatory effect of low density lipoprotein (LDL) on progesterone biosynthesis by primary cultures of swine granulosa cells. Progesterone 93-105 insulin Sus scrofa 0-7 3516657-3 1986 We conclude that insulin and LDL synergistically enhance progesterone biosynthesis by swine granulosa cells via specific mechanisms that depend upon 1,2,-cyclohexanedione-sensitive residues within LDL apoprotein. Progesterone 57-69 insulin Sus scrofa 17-24 24790602-5 2014 The gonadotrophin/insulin-induced release of progesterone from granulosa and theca interna cells and the release of oestradiol and androstenedione from theca cells was also modified by adiponectin. Progesterone 45-57 insulin Sus scrofa 18-25 3917908-1 1985 To characterize the nature of insulin action on ovarian cells, an in vitro system of swine granulosa cells was developed in which 3- to 50-fold stimulation of progesterone production was observed in response to insulin under serum-free or sparsely (1%) serum-supplemented conditions. Progesterone 159-171 insulin Sus scrofa 30-37 3917908-1 1985 To characterize the nature of insulin action on ovarian cells, an in vitro system of swine granulosa cells was developed in which 3- to 50-fold stimulation of progesterone production was observed in response to insulin under serum-free or sparsely (1%) serum-supplemented conditions. Progesterone 159-171 insulin Sus scrofa 211-218 3917908-4 1985 The mechanisms subserving insulin action were explored further by testing the capacity of insulin to 1) increase progesterone accumulation in response to exogenously provided pregnenolone, and 2) stimulate pregnenolone biosynthesis in the presence of trilostane, an inhibitor of pregnenolone metabolism. Progesterone 113-125 insulin Sus scrofa 26-33 3917908-4 1985 The mechanisms subserving insulin action were explored further by testing the capacity of insulin to 1) increase progesterone accumulation in response to exogenously provided pregnenolone, and 2) stimulate pregnenolone biosynthesis in the presence of trilostane, an inhibitor of pregnenolone metabolism. Progesterone 113-125 insulin Sus scrofa 90-97 3917908-5 1985 The effects of insulin were to increase the biosynthesis of progesterone from available pregnenolone and increase the production of pregnenolone from endogenous sterol substrate. Progesterone 60-72 insulin Sus scrofa 15-22 3917908-9 1985 Moreover, our studies indicate that insulin exerts significant actions at several levels of progestin biosynthesis, including the production of pregnenolone, progesterone, and 20 alpha-dihydroprogesterone by granulosa cells. Progesterone 158-170 insulin Sus scrofa 36-43 6370258-2 1984 Insulin-receptor antiserum but not control serum significantly (greater than 85%) attenuated insulin"s stimulation of progesterone biosynthesis. Progesterone 118-130 insulin Sus scrofa 0-7 6370258-2 1984 Insulin-receptor antiserum but not control serum significantly (greater than 85%) attenuated insulin"s stimulation of progesterone biosynthesis. Progesterone 118-130 insulin Sus scrofa 93-100 6193139-4 1983 Purified porcine insulin significantly augmented the biosynthesis and secretion of progesterone by cultured granulosa cells. Progesterone 83-95 insulin Sus scrofa 17-24 6193139-6 1983 Under serum-restricted conditions, insulin also significantly amplified the capacity of estradiol and 8-bromo cyclic AMP to stimulate progesterone production. Progesterone 134-146 insulin Sus scrofa 35-42 6193139-8 1983 The stimulation of progesterone production by insulin was attributable to increased biosynthesis of pregnenolone, rather than diminished catabolism of progesterone to its principal metabolite, 20alpha-hydroxypregn-4-en-3-one. Progesterone 19-31 insulin Sus scrofa 46-53 6193139-9 1983 Insulin also enhanced progesterone production in the presence of a soluble sterol substrate, 5-cholesten-3beta,25-diol, which readily gains access to the mitochondrial cholesterol side-chain cleavage system. Progesterone 22-34 insulin Sus scrofa 0-7 6193139-12 1983 Insulin"s augmentation of progesterone production reflected a selective action on progestin biosynthesis, since insulin significantly suppressed estrogen biosynthesis by granulosa cells.Thus, our investigations indicate that insulin acts on ovarian cells selectively to stimulate pregnenolone (but not estrogen) biosynthesis. Progesterone 26-38 insulin Sus scrofa 0-7 6193139-12 1983 Insulin"s augmentation of progesterone production reflected a selective action on progestin biosynthesis, since insulin significantly suppressed estrogen biosynthesis by granulosa cells.Thus, our investigations indicate that insulin acts on ovarian cells selectively to stimulate pregnenolone (but not estrogen) biosynthesis. Progesterone 26-38 insulin Sus scrofa 225-232 33189079-3 2021 Therefore, this study aimed to investigate the in vitro effect of chemerin on basal and luteinizing hormone/follicle-stimulating hormone- and/or insulin-induced secretion of progesterone (P4), androstenedione (A4), testosterone (T), estrone (E1) and estradiol (E2) by the porcine ovarian cells during the estrous cycle and early pregnancy. Progesterone 174-186 insulin Sus scrofa 145-152 11133694-0 2001 Feed restriction and insulin treatment affect subsequent luteal function in the immediate postovulatory period in pigs: progesterone production in vitro and messenger ribonucleic acid expression for key steroidogenic enzymes. Progesterone 120-132 insulin Sus scrofa 21-28 11133694-6 2001 Inherent differences in luteal function therefore appear to mediate latent effects of nutrition and insulin treatment on circulating progesterone concentrations in the critical postovulatory period in gilts. Progesterone 133-145 insulin Sus scrofa 100-107