abstract：:Pertussis toxin (PT) and cholera toxin (CT) have been shown to modulate lactogenic hormone-stimulated Nb2 cell mitogenesis, a lactogen-dependent cell line. As both toxins have been shown to alter guanylate cyclase activity in other cell systems, cyclic guanosine monophosphate (cGMP) analogs, 8-bromo or dibutyryl cGMP,...

journal_title：Endocrine research

authors： Larsen JL

更新日期：1992-01-01 00:00:00

abstract：:The presence of vasoactive intestinal peptide and neuropeptide Y in thyroid nerves and their effects on thyroid blood flow are well known. However, the effects of these two neuropeptides on the various processes involved in thyroid hormone biosynthesis and release have not been fully explored. We have now tested these...

journal_title：Endocrine research

authors： Pietrzyk Z,Michalkiewicz M,Huffman LJ,Hedge GA

更新日期：1992-01-01 00:00:00

abstract：:This study was performed on 18 postmenopausal female volunteers in order to examine changes in sex hormone binding globulin (SHBG), high density lipoprotein cholesterol (HDLC), total cholesterol (TC) and serum triglyceride (TG) levels in a period of four months of moderate physical exercise. While SHBG decreased signi...

journal_title：Endocrine research

authors： Caballero MJ,Maynar M

更新日期：1992-01-01 00:00:00

abstract：:In the guinea pig adrenal the cells of the outer zone secrete high levels of steroid and respond to ACTH with increased synthesis of cholesterol and steroid. The outer zone consists of two cell types: zona fasciculata (ZF) and zona glomerulosa (ZG). To determine the relative contribution of ZF and ZG to the outer zone...

journal_title：Endocrine research

authors： Brody RI,Black VH

更新日期：1991-01-01 00:00:00

abstract：:A 30-residue peptide corresponding to the amino acid sequence of steroidogenesis activator peptide (SAP) from rat Leydig tumor cells has been synthesized by the solid-phase method using Boc protection. SAP is the putative cycloheximide-sensitive, cAMP-regulated mediator of ACTH-stimulated conversion of cholesterol to ...

journal_title：Endocrine research

authors： Glass DB,Robertson DG,Xu TS,Bowman EP,Lambeth JD

更新日期：1991-01-01 00:00:00

abstract：:The liver is known to be sensitive to dietary challenge and to reduction in its functional mass. To investigate the influence of the vitamin D endocrine system on the hepatic growth response, liver DNA synthesis (S phase of cell cycle) was primed by dietary manipulation (high carbohydrate/protein-free diet x 3 d follo...

journal_title：Endocrine research

authors： Ethier C,Goupil D,Gascon-Barré M

更新日期：1991-01-01 00:00:00

abstract：:Atrial natriuretic peptide (ANP) is released from the atria and acts to regulate blood volume and pressure. The release of ANP appears to be stimulated by atrial distension, initiated by stretch on the cardiocytes. The purpose of the present study was to develop an assay that would allow for the detection of ANP relea...

journal_title：Endocrine research

authors： Miller HA 3rd,Southerland CM

更新日期：1990-01-01 00:00:00

abstract：:The effect of clomiphene on nuclear estrogen receptors of the Fallopian tube during ovum transport in the rabbit has been studied. Nuclear binding capacity was observed in ampulla (A), ampullary-isthmic junction (AIJ), isthmus (I), uterine-isthmic junction (UIJ) and uterus (U). Receptor concentration decreased in all ...

journal_title：Endocrine research

authors： Gupta JS,Roy SK

更新日期：1989-01-01 00:00:00

abstract：:The Ca2(+)-ATPase of plasma membranes from a variety of tissues is subject to stimulation in vitro, and apparently in vivo, by physiological concentrations of iodothyronines regarded as biologically active in other bioassay systems. This calmodulin-dependent action of thyroid hormone is nongenomic, that is, directly o...

journal_title：Endocrine research

authors： Davis PJ,Davis FB,Lawrence WD

更新日期：1989-01-01 00:00:00

abstract：:The question of whether ethanol's (ETOH's) known suppressive effect on serum luteinizing hormone (LH) could be mediated directly at the anterior pituitary level was addressed by examining the effects of ETOH in vitro on release of LH from cultured male rat pituitary cells. The impact of added ethanol concentrations ra...

journal_title：Endocrine research

authors： Emanuele MA,Tentler J,Emanuele NV,Reda D,Kirsteins L,Lawrence AM

更新日期：1989-01-01 00:00:00

abstract：:Steroid 21-hydroxylase deficiency is the most frequent cause of congenital adrenal hyperplasia, an inherited inability to synthesize cortisol. Mutations causing this disorder have been characterized by hybridization analysis of patient DNA samples using cDNA and oligonucleotide probes, and by cloning and sequencing of...

journal_title：Endocrine research

authors： White PC

更新日期：1989-01-01 00:00:00

abstract：:Pretreatment of confluent human fibroblast cultures for two days in dexamethasone, serum free medium increased 10-20 fold the sensitivity of the cells to insulin-like growth factor I (IGF I) stimulation of amino acid uptake using the amino acid analog alpha-aminoisobutyric acid (AIB). This increased sensitivity result...

journal_title：Endocrine research

authors： Heath-Monnig E,Daughaday WH

更新日期：1989-01-01 00:00:00

abstract：:A study was conducted to provide information on the characteristics of skeletal muscle glucocorticoid receptors and to determine the response of serum cortisol and thyroxine secretion to colostrum feeding in the neonatal calf. Twenty-four calves (12 males and 12 females) were obtained immediately postpartum and random...

journal_title：Endocrine research

authors： Waggoner DK,McCarthy FD,Akers RM

更新日期：1988-01-01 00:00:00

abstract：:Activation of calcium-activated, phospholipid-dependent protein kinase C by phorbol esters such as 12-O-tetradecanoyl-phorbol-13-acetate (TPA) has been shown to mediate release of hormones in many systems. To investigate the role of protein kinase C in the mechanism of pituitary ACTH release, we studied the effect of ...

journal_title：Endocrine research

authors： Sobel DO

更新日期：1988-01-01 00:00:00

abstract：:Neuropeptide Y (NPY) and calcitonin gene-related peptide (CGRP) are both intrapancreatic neuropeptides that are known to inhibit stimulated insulin secretion. In the present study, we examined their influences on basal and stimulated glucagon and insulin secretion in the mouse. Either NPY or CGRP was injected intraven...

journal_title：Endocrine research

authors： Pettersson M,Lundquist I,Ahrén B

更新日期：1987-01-01 00:00:00

abstract：:Basal serum concentrations of prolactin (PRL) and the elevation of serum PRL concentrations induced by the serotonergic agents, quipazine and 5-hydroxytryptophan (5-HTP) were suppressed in rats treated acutely with dexamethasone. Acute dexamethasone treatment did not alter the stimulation of PRL release produced by th...

journal_title：Endocrine research

authors： Passaro EA,Meltzer HY,Gudelsky GA

更新日期：1987-01-01 00:00:00

abstract：:In order to clarify the roles of cholinergic and serotonergic neurotransmission in the mediation of exercise-induced growth hormone (GH) release, normal young volunteers of both sexes were studied. Exercise was for 20 minutes at 800 kpm for the men and 500 kpm for the women. Pretreatment with 0.4 mg atropine 1 hour pr...

journal_title：Endocrine research

authors： Brillon D,Nabil N,Jacobs LS

更新日期：1986-01-01 00:00:00

abstract：:Addition of cAMP (as the dibutyryl compound) to a primary culture of mouse Leydig cells caused the accumulation of a protein, i(b), with the same dependence on cAMP concentration as the increase in testosterone synthesis. Stimulation of both protein i(b) and testosterone production were inhibited by cycloheximide. Add...

journal_title：Endocrine research

authors： Pon LA,Epstein LF,Orme-Johnson NR

更新日期：1986-01-01 00:00:00

abstract：:The effect of crowding on the pituitary-gonadal axis was studied in adult male rats. Crowding reduced body weight gain, did not alter relative adrenal weight and increased relative testis weight. Neither basal levels of corticosterone nor its response to acute stress were altered by crowding. Likewise, LH secretion wa...

journal_title：Endocrine research

authors： Armario A,Lopez-Calderón A

更新日期：1986-01-01 00:00:00

abstract：:Tumor-promoting phorbol esters are believed to affect cell functions by activating a Ca+2-and lipid-dependent protein kinase (protein kinase C). 12-0-Tetradecanoyl phorbol-13-acetate (TPA) inhibits LH stimulation of progesterone (P) accumulation in rat granulosa cells. To determine the mechanisms by which TPA inhibits...

journal_title：Endocrine research

authors： Kawai Y,Clark MR

更新日期：1986-01-01 00:00:00

abstract：:Four hundred micrograms of synthetic thyrotropin releasing hormone (TRH) were given intravenously to 4 normal men and 4 normal women, and four weeks later, 1000 micrograms of TRH were administered intravenously to 4 of the 8 individuals and oxytocin (OT) was measured in plasma on both occasions. Following injection of...

journal_title：Endocrine research

authors： Amico JA,Johnston JM

更新日期：1985-01-01 00:00:00

abstract：:The effects of forskolin on the regulation of steroidogenesis and growth were examined in the Y1 adrenocortical tumor cell line, and the roles of cAMP and cAMP-dependent protein kinase in these actions of forskolin were evaluated. Forskolin, like corticotropin, stimulated steroidogenesis 3-fold and inhibited growth by...

journal_title：Endocrine research

authors： Schimmer BP,Schulz P

更新日期：1985-01-01 00:00:00

abstract：:The rat adrenal cortex possesses at least two mechanisms for uptake of extracellular lipoprotein cholesterol; one is receptor mediated endocytosis and the second is a non-endocytotic pathway. The latter was revealed by the ability of lipoproteins such as HDL which do not possess apo B or apo E to enhance steroid hormo...

journal_title：Endocrine research

authors： Gwynne JT,Hess B,Hughes T,Rountree R,Mahaffee D

更新日期：1984-01-01 00:00:00

abstract：:A method is described for the preparation of high yields of viable, dissociated cells from porcine theca interna and corpus luteum and from human and bovine endometrium. The tissues were dissociated by incubation at 37 degrees C in a mixture of 0.5% collagenase, 0.1% hyaluronidase and 0.1% pronase in balanced salt sol...

journal_title：Endocrine research

authors： Marcus GJ,Connor L,Domingo MT,Tsang BK,Downey BR,Ainsworth L

更新日期：1984-01-01 00:00:00

abstract：:An analysis of the glucocorticoid receptor population of skeletal muscle and liver from dystrophic and control mice was performed. These data demonstrate that the cytosol of muscles from dystrophic animals contain a significantly higher concentration of glucocorticoid receptors (approximately 100%) relative to the cyt...

journal_title：Endocrine research

authors： DuBois DC,Almon RR

更新日期：1984-01-01 00:00:00

abstract：:Congenital adrenal hyperplasia due to 21-hydroxylase (21-OH) deficiency is HLA-linked. The haplotype HLA-(A3);Bw47;DR7 is strongly associated with 21-OH deficiency and always carries a null allele at the complement C4A (Rodgers) locus. It seemed likely that this haplotype carries a deletion encompassing both the C4A a...

journal_title：Endocrine research

authors： White PC,Dupont B,New MI

更新日期：1984-01-01 00:00:00