Neurotransmitters and neuropeptides in the differential regulation of steroidogenesis in adrenocortical-chromaffin co-cultures.

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：:Background: Evidence has shown that low thyroid hormone levels may lead to worse prognosis including a higher mortality rate in patients with heart failure (HF). Thyroid replacement increases cardiac output and exercise performance without causing significant adverse events. The purpose of this study is to compare lev...

journal_title：Endocrine research

authors： Yang T,Ruegger M,Colavecchia AC,Sadhu A,Patham B,Tatara A

更新日期：2020-02-01 00:00:00

abstract：:Comparison of binding of 125I-porcine FSH to porcine granulosa cells from small and large ovarian follicles indicated that binding is dependent on both time and temperature. At 37 C, binding of ligand is more than four times higher in cells from small follicles than in cells from large follicles within 30 minutes of t...

journal_title：Endocrine research

authors： LaBarbera AR

更新日期：1994-02-01 00:00:00

abstract：:The cdc2 kinase family is known to be one of the important factors for cell proliferation in both yeast and mammalian cells. By using polyclonal antibodies against PSTAIRE region of cdc2HS, we studied the amount of cdc2-related kinases in the rat thyroid cell line, FRTL-5, during the cell cycle. The immunoreactive pro...

journal_title：Endocrine research

authors： Takano T,Takada K,Tada H,Nishiyama S,Amino N

更新日期：1994-05-01 00:00:00

abstract：:Two distinct isoforms of 11 beta-hydroxysteroid dehydrogenase (11 beta-HSD) with respect to enzymatic activity were identified in the ovine liver and kidney. 11 beta-HSD1 (the hepatic isoform) was reversible and NADP(H)-dependent. By contrast, 11 beta-HSD2 (the renal isoform) was unidirectional and NAD-dependent. Ovin...

journal_title：Endocrine research

authors： Yang K

更新日期：1995-02-01 00:00:00

abstract：:We quantitated serial serum beta-hydroxybutyrate (beta-OHB) levels using the Ketosite method in 9 children with IDDM who were treated for diabetic ketoacidosis (DKA) and compared them to urinary ketone measurements by dipstick. Persistent elevations of serum beta-OHB were seen in six patients when the urine became cle...

journal_title：Endocrine research

authors： Nadgir UM,Silver FL,MacGillivray MH

更新日期：2001-02-01 00:00:00

abstract：INTRODUCTION:Charcoal- or resin-stripping of fetal bovine serum (FBS) or bovine calf serum (BCS) intended for supplementation of cell culture media is widely practiced to remove a variety of endogenous compounds, including steroid, peptide, and thyroid hormones. The possibility that stripping removes other biologically...

journal_title：Endocrine research

authors： Cao Z,West C,Norton-Wenzel CS,Rej R,Davis FB,Davis PJ,Rej R

更新日期：2009-01-01 00:00:00

abstract：:Combined partial deficiency of 17alpha-hydroxylase and 21-hydroxylase activities was first described in 1985; however the genes for P450c17 and P450c21 in these patients lack mutations. In 1986 we postulated that this disorder might be due to mutations in P450 oxidoreductase (POR), the flavoprotein that donates electr...

journal_title：Endocrine research

authors： Pandey AV,Flück CE,Huang N,Tajima T,Fujieda K,Miller WL

更新日期：2004-11-01 00:00:00

abstract：:Diabetes mellitus impairs ventricular function, which itself may be disparately influenced by gender. This study compared the impact of gender on cardiac contractile response in ventricular myocytes from wild-type FVB and calmodulin-induced diabetic transgenic (OVE26) mice at young (2 month) and older (11 month) age. ...

journal_title：Endocrine research

authors： Zhang X,Ye G,Duan J,Chen AF,Ren J

更新日期：2003-05-01 00:00:00

abstract：:The determination of DNA ploidy and the study of the cell cycle in adrenocortical tumoral cells could help in the distinction between benign and malignant lesions and also in the prediction of the biological behaviour of these tumors. We analysed 32 cases of adrenal tissue (8 normal adrenals--N, 12 benign adenomas--A ...

journal_title：Endocrine research

authors： Pignatelli D,Leitão D,Maia M,Schmidt F

更新日期：1998-08-01 00:00:00

abstract：:The steady state level of most cellular phosphoproteins is dependent on the relative catalytic activities of intracellular protein kinases and phosphatases. In adrenal cortex, ACTH acts through PKA activation and Ser/Tre phosphorylation. Phosphatases involved in this pathway are not completely described, particularly ...

journal_title：Endocrine research

authors： Cornejo Maciel F,Paz C,Neuman MI,Podestá EJ

更新日期：1998-08-01 00:00:00

abstract：INTRODUCTION:Adenosine deaminase (ADA), purine nucleoside phosphorylase (PNPase), S-adenosylhomocysteine hydrolase (SAHH), 5'-nucleotidase (5N), and deoxycytidine kinase (dCK) are involved in purine salvage metabolism. Changes of the activities of the above enzymes have been observed in blood cells in patients with imm...

journal_title：Endocrine research

authors： Karbownik M,Zasada K,Wyczechowska D,Lewiński A,Fabianowska-Majewska K

更新日期：2002-08-01 00:00:00

abstract：:T3 receptors are ligand-dependent transcriptional activators that can stimulate gene expression resulting in growth and development. In this study T3 binding sites on isolated liver nuclei are demonstrated in the teleost Anabas testudineus. The effect of hypothyroidism and feeding of polyunsaturated fatty acids (PUFA)...

journal_title：Endocrine research

authors： Shameena B,Renuka TR,Varghese S,Paulose CS,Oommen OV

更新日期：2001-08-01 00:00:00

abstract：AIM:To determine whether hyperuricemia is associated with the early phase and late phase of insulin release in apparently healthy non-obese subjects with normal glucose tolerance. MATERIALS AND METHODS:A population-based cross-sectional study was performed. Apparently healthy individuals aged 20 to 65 years were eligi...

journal_title：Endocrine research

authors： Simental-Mendía LE,Simental-Mendía E,Rodríguez-Morán M,Guerrero-Romero F

更新日期：2017-02-01 00:00:00

abstract：:The zonal distribution of aldosterone synthase cytochrome P450 (P450aldo) in the adrenal cortex of male hamsters was investigated by immunofluorescence and electron microscopy, using an anti-P450aldo peptide antibody. On cryostat sections the immunolocalization of P450aldo was confined to the zona glomerulosa cells. O...

journal_title：Endocrine research

authors： LeHoux JG,Martel D,LeHoux J,Ducharme L,Lefebvre A,Brière N

更新日期：1995-02-01 00:00:00

abstract：:In general, growth hormone acts as a factor promoting cell proliferation in the positive direction and suppresses apoptosis. No report has described growth hormone (GH)-induced structural luteolysis. The present studies showed that GH induced structural luteolysis in rats after the induction of functional luteolysis b...

journal_title：Endocrine research

authors： Kiya T,Endo T,Henmi H,Goto T,Kitajima Y,Manase K,Takahashi S,Kudo R

更新日期：1999-05-01 00:00:00

abstract：:We report a novel mutant of the luteinizing hormone receptor (LHR) in a case of familial Leydig cell hypoplasia and pseudohermaphrotidism. The proband was homozygous for two missense mutations, T1121C and C1175T, causing substitutions I374T and T3921. The molecular effects of the mutations were investigated by heterol...

journal_title：Endocrine research

authors： Pals-Rylaarsdam R,Liu G,Brickman W,Duranteau L,Monroe J,El-Awady MK,Gad YZ,Shenker A

更新日期：2005-01-01 00:00:00

abstract：:Total collagen and its soluble fraction as well as water content were determined in late pregnancy in the uterine cervix in a population of 36 rats treated with progesterone (n = 10), mifepristone (n = 13) and controls (n = 13). In both treated groups there were no signs of delivery on the 21st day of gestation. Water...

journal_title：Endocrine research

authors： Bieńkiewicz A

更新日期：1995-08-01 00:00:00

abstract：:Recent evidence supports the hypothesis that sympathetic neurons play a significant role in the regulation of adrenocortical cell proliferation and steroidogenesis. Co-cultures of rat adrenocortical and sympathetic ganglion cells have been established to study sympatho-adrenal interactions. In these studies we have co...

journal_title：Endocrine research

authors： Wu CH,Holzwarth MA

更新日期：1996-11-01 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：: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：:There is controversy concerning the effects of progestins on bone. Norethindrone acetate (NETA) is synthetic progesterone that also has estrogenic and androgenic effects. We tested its effects on hormone levels, lipids and biochemical markers of bone turnover in postmenopausal women who were on estrogen replacement th...

journal_title：Endocrine research

authors： Onobrakpeya OA,Fall PM,Willard A,Chakravarthi P,Hansen A,Raisz LG

更新日期：2001-11-01 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

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：: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：:Plasminogen activator inhibitor-1 (PAI-1) levels were found to be associated with obesity, indicating that adipocytes might influence PAI-1 plasma levels. In addition, the 4G/5G promoter polymorphism of the PAI-1 gene possibly modulates PAI-1 gene transcription and, as a consequence, PAI-1 plasma levels. Metabolic par...

journal_title：Endocrine research

authors： Zietz B,Buechler C,Drobnik W,Herfarth H,Schölmerich J,Schäffler A

更新日期：2004-08-01 00:00:00

abstract：:Purpose: Testotoxicosis is an autosomal dominant form of limited gonadotropin-independent precocious puberty in boys. It is caused by a heterozygous constitutively activating mutation of the LHCGR gene encoding the luteinizing/hormone receptor (LHR). Some twenty mutations of the LHCGR gene have been reported. Most of ...

journal_title：Endocrine research

authors： Daussac A,Barat P,Servant N,Yacoub M,Missonier S,Lavran F,Gaspari L,Sultan C,Paris F

更新日期：2020-02-01 00:00:00

abstract：:The CYP11B2 gene encodes aldosterone synthase, a cytochrome P450 (P450aldo) expressed in high levels in the adrenal zona glomerulosa. While the primary physiologic regulators of aldosterone production are circulating angiotensin II (Ang II) and potassium (K+) the action of these agents on CYP11B2 gene transcription ha...

journal_title：Endocrine research

authors： Clyne CD,White PC,Rainey WE

更新日期：1996-11-01 00:00:00

abstract：:The sexual dimorphism of life span and caloric restriction effects in numerous species suggest that estradiol (E2) is protective against oxidative damage. The only direct test of E2's protective effect in mice against in vivo oxidative stress to date may have been confounded by E2's direct chemical action as an antiox...

journal_title：Endocrine research

authors： Bokov AF,Ko D,Richardson A

更新日期：2009-01-01 00:00:00

abstract：:Islets derived from patients with persistent hyperinsulinemic hypoglycemia of infancy, PHHI, show a significant capacity to proliferate in vitro without the addition of growth factors. However, as with other differentiated cells, PHHI-derived islet cells show a loss of differentiated function with repeated subculture....

journal_title：Endocrine research

authors： Webb M,James RF

更新日期：2005-01-01 00:00:00