Prostaglandins and progesterone secretion in the in vitro perfused pseudopregnant rabbit ovary.

abstract：:3-Iodothyronamine (3-T1AM) is an endogenous thyroid hormone (TH)-derived metabolite that induces severe hypothermia in mice after systemic administration; however, the underlying mechanisms have remained enigmatic. We show here that the rapid 3-T1AM-induced loss in body temperature is a consequence of peripheral vasod...

journal_title：Endocrinology

authors： Gachkar S,Oelkrug R,Martinez-Sanchez N,Rial-Pensado E,Warner A,Hoefig CS,López M,Mittag J

更新日期：2017-06-01 00:00:00

abstract：:Ionic mechanisms play an important role in the regulation of hormone secretion. The GHRH-induced GH release by human GH-secreting cells is transmitted through protein kinase A (PKA), which activates nonselective cation current (NSCC) and induces membrane depolarization, intracellular Ca2+ increase, and GH secretion. T...

journal_title：Endocrinology

authors： Yasufuku-Takano J,Takano K,Takei T,Fukumoto S,Teramoto A,Takakura K,Yamashita N,Fujita T

更新日期：1999-05-01 00:00:00

abstract：:We sequenced the complementary DNA (cDNA) encoding guinea pig LHRH from an expression library derived from the preoptic area-anterior hypothalamus. Data from in situ hybridization and RNase protection assays verified that the cloned cDNA was complementary to guinea pig LHRH messenger RNA. The architecture of the deduc...

journal_title：Endocrinology

authors： Jimenez-Liñan M,Rubin BS,King JC

更新日期：1997-10-01 00:00:00

abstract：:FSH and IGF-I are both important determinants of testicular development and Sertoli cell function. The present studies were performed to determine the actions of FSH and IGF-I on PI3K/AKT protein kinase signaling in immature rat Sertoli cells. Primary cultures of rat Sertoli cells were prepared from 10-d-old rats. Aft...

journal_title：Endocrinology

authors： Khan SA,Ndjountche L,Pratchard L,Spicer LJ,Davis JS

更新日期：2002-06-01 00:00:00

abstract：:A serum-free, hormone- and factor-supplemented, defined medium was developed which maintains functional activity of primary cultures of adult islet cells and continuous islet cell lines. Medium supplements examined included proteose peptone (PP), transferrin (TrFe), insulin-like growth factor-I (IGF-I), an insulinotro...

journal_title：Endocrinology

authors： Clark SA,Chick WL

更新日期：1990-04-01 00:00:00

abstract：:Carbonyl cyanide trifluoromethoxyphenylhydrazone (FCCP), a protonophore, and methylamine, a weak base, agents that dissipate hydrogen gradients across cellular membranes, were used to probe the coupling of hydrogen gradients to the processing and secretion of the glycoprotein hormone hCG by human choriocarcinoma cells...

journal_title：Endocrinology

authors： Peters BP,Krzesicki RF,Perini F,Ruddon RW

更新日期：1986-07-01 00:00:00

abstract：:Hypoglycemia associated with diabetes management is a potential risk for cardiovascular diseases. However, the effect of hypoglycemic episodes including a surge of sympathetic activity on the progression of neointima formation after vascular injury remains largely unknown. In this study, insulin was injected intraperi...

journal_title：Endocrinology

authors： Yasunari E,Mita T,Osonoi Y,Azuma K,Goto H,Ohmura C,Kanazawa A,Kawamori R,Fujitani Y,Watada H

更新日期：2014-06-01 00:00:00

abstract：:Cyclin D1 encodes the regulatory subunit of a holoenzyme that phosphorylates and inactivates the retinoblastoma protein and promotes progression through the G1-S phase of the cell cycle. Amplification or overexpression of cyclin D1 plays pivotal roles in the development of a subset of human cancers including parathyro...

journal_title：Endocrinology

authors： Fu M,Wang C,Li Z,Sakamaki T,Pestell RG

更新日期：2004-12-01 00:00:00

abstract：:Term pregnancy human placenta contains hCG/LH receptor mRNA transcripts and immunoreactive receptor protein. Both the receptor transcripts and receptor proteins are present only in trophoblasts. These findings led us to investigate whether hCG can regulate its own synthesis in term pregnancy human placenta. Treatment ...

journal_title：Endocrinology

authors： Licht P,Cao H,Lei ZM,Rao CV,Merz WE

更新日期：1993-12-01 00:00:00

abstract：:The purpose of this study was to examine how the physical characteristics of light influence the short photoperiod-induced atrophy of the reproductive system. In the first experiment, groups of Syrian hamsters were exposed to a 14-h light, 10-h dark (14:10) photoperiod, a 11:13 photoperiod or a 11:13 photoperiod exten...

journal_title：Endocrinology

authors： Brainard GC,Vaughan MK,Reiter RJ

更新日期：1986-08-01 00:00:00

abstract：:The ability of a monoclonal antiidiotypic antibody (clone 1D5) directed against the binding site of a monoclonal antiestradiol antibody to interact with the estrogen receptor (ER) was investigated. The following lines of evidence indicate that clone 1D5 has the capacity of mimicking the actions of estradiol, and recog...

journal_title：Endocrinology

authors： Mor G,Amir-Zaltsman Y,Barnard G,Kohen F

更新日期：1992-06-01 00:00:00

abstract：:The signals that regulate cardiac myocyte maturation in the neonatal heart are not completely understood. In our study we examined the effects of 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3] on primary cultures of ventricular myocytes isolated from neonatal rat hearts. Our data show that 1,25-(OH)2D3 inhibited an increase ...

journal_title：Endocrinology

authors： O'Connell TD,Giacherio DA,Jarvis AK,Simpson RU

更新日期：1995-02-01 00:00:00

abstract：:To study the physiological regulation of the iodothyronine 5'-deiodinases (I-5'D), we have examined the effects of some thiol blockers and of thyroid status on I-5'D activities both in vitro and in vivo. At low (less than 5 mM) concentrations of dithiothreitol, propylthiouracil (PTU) inhibited I-5'D in the brain, pitu...

journal_title：Endocrinology

authors： Goswami A,Rosenberg IN

更新日期：1990-05-01 00:00:00

abstract：:The effects of electrical and chemical stimulations of the hypothalamus on the plasma levels of glucagon, insulin, and glucose were studied in undisturbed and free-moving rabbits. Electrical stimulation of the ventromedial hypothalamic nucleus (VMH) caused a marked increase in the circulating level of glucagon coincid...

journal_title：Endocrinology

authors： Shimazu T,Ishikawa K

更新日期：1981-02-01 00:00:00

abstract：:Tamoxifen, a partial competitive antagonist to the estrogen receptor, is a potent inhibitor of the proliferation of experimental mammary carcinoma in the rat and is widely used clinically in the treatment of breast cancer. Blockade of estrogen receptors present on neoplastic cells represents the classic mechanism of a...

journal_title：Endocrinology

authors： Tannenbaum GS,Gurd W,Lapointe M,Pollak M

更新日期：1992-06-01 00:00:00

abstract：:A model for the study of testicular function in experimental uremia induced by subtotal nephrectomy in mature male rats is described. Glomerular filtration rate was reduced by 87%, resulting in stable uremia for up to 13 weeks with characteristic biochemical changes and reduction in weight of testes, prostate, seminal...

journal_title：Endocrinology

authors： Handelsman DJ,Spaliviero JA,Turtle JR

更新日期：1985-11-01 00:00:00

abstract：:A healthy nutritional state is required for all aspects of reproduction and is signaled by the adipokine leptin. Leptin acts in a relatively narrow concentration range: too much or too little will compromise fertility. The leptin signal timing is important to prepubertal development in both sexes. In the brain, leptin...

journal_title：Endocrinology

authors： Childs GV,Odle AK,MacNicol MC,MacNicol AM

更新日期：2021-02-01 00:00:00

abstract：:Recent studies suggest that GH may modulate emotion, behavior, or stress response by its direct actions on the brain, and possible expression of the GH gene in the brain has been predicted. In this study we have investigated whether and where the GH gene is expressed in the brain and how it is regulated. Ribonuclease ...

journal_title：Endocrinology

authors： Yoshizato H,Fujikawa T,Soya H,Tanaka M,Nakashima K

更新日期：1998-05-01 00:00:00

abstract：:Morphoregulator genes like members of the Hox gene family regulate uterine development and are associated with endocrine-related processes such as endometrial proliferation and differentiation in the adult uterus. Exposure to neonatal endocrine disruptors could affect signaling events governed by Hox genes, altering t...

journal_title：Endocrinology

authors： Varayoud J,Ramos JG,Bosquiazzo VL,Muñoz-de-Toro M,Luque EH

更新日期：2008-11-01 00:00:00

abstract：:The present studies were conducted to further evaluate inositol phosphate formation and metabolism in prostaglandin F2 alpha (PGF2 alpha)-stimulated bovine luteal cells. Corpora lutea were dispersed with collagenase, and luteal cells were prelabeled for 3 h with [3H]inositol. Inositol phosphates produced in response t...

journal_title：Endocrinology

authors： Duncan RA,Davis JS

更新日期：1991-03-01 00:00:00

abstract：:An estrogen-responsive uterine proenzyme of a proteinase in the immature rat uterus has been known for some time. Its mol wt is 77,000, its N-terminal amino acid sequence is the same as prothrombin's for 15 residues, it contains gamma-carboxyl glutamate residues, its biosynthesis is prevented by warfarin, it cross-rea...

journal_title：Endocrinology

authors： Henrikson KP,Jazin EE,Greenwood JA,Dickerman HW

更新日期：1990-01-01 00:00:00

abstract：:The enzyme glutamate decarboxylase-65 (GAD65) is a major autoantigen in autoimmune diabetes. The mechanism whereby autoreactivity to GAD65, an intracellular protein, is triggered is unknown, and it is possible that immunoreactive GAD65 is released by injured pancreatic islet beta-cells. There is a great need for metho...

journal_title：Endocrinology

authors： Waldrop MA,Suckow AT,Marcovina SM,Chessler SD

更新日期：2007-10-01 00:00:00

abstract：:The factors controlling the synthesis and degradation of the insulin-like growth factor-binding proteins (IGFBPs) during pregnancy are poorly understood. To clarify the roles of nutritional factors in the regulation of fetal and maternal IGFBP production, we examined the effects of fasting, refeeding, and glucose admi...

journal_title：Endocrinology

authors： Osborn BH,Fowlkes J,Han VK,Freemark M

更新日期：1992-10-01 00:00:00

abstract：:Activin is structurally related to polypeptide growth factors such as transforming-growth factor-beta, which may have paracrine and/or autocrine functions in the ovaries. We have investigated the action of activin on granulosa cell steroidogenesis in vitro in relation to preovulatory follicular development in vivo. Es...

journal_title：Endocrinology

authors： Miró F,Smyth CD,Hillier SG

更新日期：1991-12-01 00:00:00

abstract：:Ovarian surface epithelium (OSE) is the most conceivable cell origin of epithelial ovarian carcinomas. Unlike many other epithelial tumors, the precancerous lesion acquires expression of epithelial markers, e.g. E-cadherin and claudins, suggesting that OSE cells undergo mesenchymal to epithelial transition (MET) durin...

journal_title：Endocrinology

authors： Zhu Y,Nilsson M,Sundfeldt K

更新日期：2010-11-01 00:00:00

abstract：:We recently described a novel GnRH receptor signaling pathway mediated by the prostaglandins (PGs) F(2alpha) and PGI(2), which acts through an autocrine/paracrine modality to limit autoregulation of the GnRH receptor and inhibit LH but not FSH release. Here we further explore the cross talk between GnRH and the PG rec...

journal_title：Endocrinology

authors： Naidich M,Shterntal B,Furman R,Pawson AJ,Jabbour HN,Morgan K,Millar RP,Jia J,Tomic M,Stojilkovic S,Stern N,Naor Z

更新日期：2010-06-01 00:00:00

abstract：:We examined the effects of bombesin on rat pancreatic digestive enzyme gene expression using cloned complementary DNA probes for amylase, trypsinogen I, chymotrypsinogen B, and lysophospholipase. Rats were injected sc three times daily with 5 nmol/kg body wt bombesin. Pancreata were investigated after 6, 12, 24, 48, a...

journal_title：Endocrinology

authors： Rosewicz S,Liehr RM,Solomon TE,Riecken EO,Logsdon CD

更新日期：1992-03-01 00:00:00

abstract：:Protein synthesis in bovine pituitaries was measured by incubation of tissue slices with radioactive amino acids, followed by gel electrophoresis. PRL and GH syntheses were estimated by determining the amount of radioactivity comigrating with standards of these hormones. Pituitary tissue removed from adult animals dem...

journal_title：Endocrinology

authors： Baxter LA,Gorski J

更新日期：1981-08-01 00:00:00

abstract：:Depletion of hypothalamic norepinephrine (NE) and epinephrine by administration of diethyldithiocarbamate abolished the stimulatory effects of intraventricular (IVT) angiotensin II (AII) on LH release in ovariectomized rats pretreated with estradiol and progesterone. The increase in blood LH produced by IVT NE or iv L...

journal_title：Endocrinology

authors： Steele MK,Ganong WF

更新日期：1986-12-01 00:00:00

abstract：:We have compared the physicochemical properties of rat uterine nuclear estrogen receptors (ER) labeled with (E2) or the high affinity antiestrogen 4-hydroxytamoxifen [OH Tam; 1-[4-(2-dimethylaminoethoxy)phenyl]-1-(4-hydroxyphenyl) 2-phenyl-but-1-(Z)ene]. Nuclear ER labeled in vivo with either ligand had sedimentation ...

journal_title：Endocrinology

authors： Attardi B,Happe HK

更新日期：1986-08-01 00:00:00