Dynamics of glucose-induced localization of PKC isoenzymes in pancreatic beta-cells: diabetes-related changes in the GK rat.

abstract：:The endoplasmic reticulum (ER) plays a pivotal role in the regulation of cytosolic Ca(2+) concentrations ([Ca(2+)](cyt)) and hence in insulin secretion from pancreatic beta-cells. However, the molecular mechanisms involved in both the uptake and release of Ca(2+) from the ER are only partially defined in these cells, ...

journal_title：Diabetes

authors： Varadi A,Rutter GA

更新日期：2002-02-01 00:00:00

abstract：:To determine the role of prolactin in increasing junctional communication among islet beta-cells, we studied dye coupling in pancreatic islets exposed to elevated levels of prolactin in vivo and in vitro. Islets were isolated from rats immediately after lactation or from rats bearing mammosomatotropic tumors (MtTW15),...

journal_title：Diabetes

authors： Michaels RL,Sorenson RL,Parsons JA,Sheridan JD

更新日期：1987-10-01 00:00:00

abstract：:Recent studies have identified that the activation of protein kinase C (PKC) and increased diacylglycerol (DAG) levels initiated by hyperglycemia are associated with many vascular abnormalities in retinal, renal, and cardiovascular tissues. Among the various PKC isoforms, the beta- and delta-isoforms appear to be acti...

journal_title：Diabetes

authors： Koya D,King GL

更新日期：1998-06-01 00:00:00

abstract：:Although decreased levels of circulating insulinlike growth factor I (IGF-I) and hepatic IGF-I mRNA in diabetic animal models support a role for insulin in IGF-I regulation, it has been difficult to study the effects of insulin in vitro. Few immortal cell lines exhibit hormone-responsive production of IGF-I, and studi...

journal_title：Diabetes

authors： Phillips LS,Goldstein S,Pao CI

更新日期：1991-11-01 00:00:00

abstract：:Concentrations of glycosylated hemoglobin (GHb) are elevated in diabetes mellitus and are believed to reflect previous metabolic control. To better define possible determinants of GHb in man, we investigated the relationship between GHb and both fasting plasma glucose (FPG) and basal insulin (IRI) in 42 normal subject...

journal_title：Diabetes

authors： Graf RJ,Halter JB,Porte D Jr

更新日期：1978-08-01 00:00:00

abstract：:Complementary DNA encoding three catalytic subunits of protein phosphatase 1 (PP1 alpha, PP1 beta, and PP1 gamma) and the insulin-stimulated protein kinase 1 (ISPK-1) was analyzed for variations in the coding regions related to insulin-resistant glycogen synthesis in skeletal muscle of 30 patients with non-insulin-dep...

journal_title：Diabetes

authors： Bjørbaek C,Vik TA,Echwald SM,Yang PY,Vestergaard H,Wang JP,Webb GC,Richmond K,Hansen T,Erikson RL

更新日期：1995-01-01 00:00:00

abstract：:We tested the hypothesis that dysfunction of vascular endothelium, indicated by an increase in plasma level of von Willebrand factor (vWF), is present in patients with insulin-dependent diabetes mellitus (IDDM) who develop diabetic nephropathy (DN). DN was classified as absent (urinary albumin excretion [UAE] rate les...

journal_title：Diabetes

authors： Stehouwer CD,Stroes ES,Hackeng WH,Mulder PG,Den Ottolander GJ

更新日期：1991-08-01 00:00:00

abstract：:Fibroblast growth factor 1 (FGF1) has been shown to reverse hyperglycemia in diabetic rodent models through peripheral and central administration routes. Previous studies demonstrated that insulin is required for central and peripheral FGF1 metabolic improvements; however, it is unknown if FGF1 targets insulin secreti...

journal_title：Diabetes

authors： Tennant KG,Lindsley SR,Kirigiti MA,True C,Kievit P

更新日期：2019-07-01 00:00:00

abstract：:The phenomenon of a discrepancy between glycated hemoglobin levels and other indicators of average glycemia may be due to many factors but can be measured as the glycation gap (GGap). This GGap is associated with differences in complications in patients with diabetes and may possibly be explained by dissimilarities in...

journal_title：Diabetes

authors： Dunmore SJ,Al-Derawi AS,Nayak AU,Narshi A,Nevill AM,Hellwig A,Majebi A,Kirkham P,Brown JE,Singh BM

更新日期：2018-01-01 00:00:00

abstract：:We reported earlier that β-cell-specific overexpression of glutathione peroxidase (GPx)-1 significantly ameliorated hyperglycemia in diabetic db/db mice and prevented glucotoxicity-induced deterioration of β-cell mass and function. We have now ascertained whether early treatment of Zucker diabetic fatty (ZDF) rats wit...

journal_title：Diabetes

authors： Mahadevan J,Parazzoli S,Oseid E,Hertzel AV,Bernlohr DA,Vallerie SN,Liu CQ,Lopez M,Harmon JS,Robertson RP

更新日期：2013-10-01 00:00:00

abstract：:Previously studied inhibitors of aldose reductase were largely from two chemical classes, spirosuccinamide/hydantoins and carboxylic acids. Each class has its own drawbacks regarding selectivity, in vivo potency, and human safety; as a result, the pathogenic role of aldose reductase in diabetic retinopathy remains con...

journal_title：Diabetes

authors： Sun W,Oates PJ,Coutcher JB,Gerhardinger C,Lorenzi M

更新日期：2006-10-01 00:00:00

abstract：:The development of autoimmune diabetes in NOD mice results from selective destruction of beta-cells by a T-cell-dependent autoimmune process. However, the mechanisms that control the generation of beta-cell cytotoxic T-cells in vivo are poorly understood. We recently established 8.3-T-cell receptor (TCR)-beta transgen...

journal_title：Diabetes

authors： Jun HS,Santamaria P,Lim HW,Zhang ML,Yoon JW

更新日期：1999-01-01 00:00:00

abstract：:Vascular endothelial growth factor receptor 2 (KDR) plays a critical role in mediating a variety of vasculogenic and angiogenic processes, including diabetic retinopathy. We previously demonstrated that the promoter activity of the KDR gene in retinal capillary endothelial cells (RCECs) was regulated in part by the re...

journal_title：Diabetes

authors： Sassa Y,Hata Y,Aiello LP,Taniguchi Y,Kohno K,Ishibashi T

更新日期：2004-05-01 00:00:00

abstract：:Hyperglycemia alters cardiac function and often leads to diabetic cardiomyopathy as cardiomyocyte apoptosis causes a hypertrophied heart to deteriorate to dilation and failure. Paradoxically, many short-term animal models of hyperglycemia protect against ischemia-induced damage, including apoptosis, by limiting Ca(2+)...

journal_title：Diabetes

authors： Pang Y,Hunton DL,Bounelis P,Marchase RB

更新日期：2002-12-01 00:00:00

abstract：:The effect of Ca2+ and calmodulin has been studied on adenylate cyclase activity in homogenates of rat islets of Langerhans. EGTA had a stimulatory effect on the enzyme in accord with the known inhibitory effect of Ca2+. In contrast, the addition of Ca2+ together with calmodulin is stimulatory and demonstrates the exi...

journal_title：Diabetes

authors： Sharp GW,Wiedenkeller DE,Kaelin D,Siegel EG,Wollheim CB

更新日期：1980-01-01 00:00:00

abstract：:Mice genetically deficient in the glucagon receptor (Gcgr(-/-)) show improved glucose tolerance, insulin sensitivity, and α-cell hyperplasia. In addition, Gcgr(-/-) mice do not develop diabetes after chemical destruction of β-cells. Since fibroblast growth factor 21 (FGF21) has insulin-independent glucose-lowering pro...

journal_title：Diabetes

authors： Omar BA,Andersen B,Hald J,Raun K,Nishimura E,Ahrén B

更新日期：2014-01-01 00:00:00

abstract：:A polymorphic region 5' to the human insulin gene has been associated with diabetes in earlier studies. This polymorphic region is composed of tandem repeats that fall into 3 general size classes, designated class 1 (600 base pairs), class 2 (1300 base pairs), and class 3 (2500 base pairs). Frequencies of these classe...

journal_title：Diabetes

authors： Elbein S,Rotwein P,Permutt MA,Bell GI,Sanz N,Karam JH

更新日期：1985-05-01 00:00:00

abstract：:A number of patients with type 2 diabetes are GAD antibody positive. A Diabetes Outcome Progression Trial (ADOPT) is a randomized, double-blind clinical trial in recently diagnosed drug-naive patients with type 2 diabetes that allows for the evaluation of GAD positivity in the context of anthropometric and biochemical...

journal_title：Diabetes

authors： Zinman B,Kahn SE,Haffner SM,O'Neill MC,Heise MA,Freed MI,ADOPT Study Group.

更新日期：2004-12-01 00:00:00

abstract：:Ghrelin, an endogenous ligand for growth hormone secretagogue (GHS) receptor originally isolated from the stomach, occurs in the hypothalamic arcuate nucleus and may play a role in energy homeostasis. Synthetic GHSs have activated the hypothalamic arcuate neurons containing neuropeptide Y (NPY), suggesting the involve...

journal_title：Diabetes

authors： Shintani M,Ogawa Y,Ebihara K,Aizawa-Abe M,Miyanaga F,Takaya K,Hayashi T,Inoue G,Hosoda K,Kojima M,Kangawa K,Nakao K

更新日期：2001-02-01 00:00:00

abstract：OBJECTIVE:Atherosclerotic cardiovascular disease is the leading cause of death among people with diabetes. Generation of oxidized LDLs and reduced nitric oxide (NO) availability because of endothelial NO synthase (eNOS) dysfunction are critical events in atherosclerotic plaque formation. Biochemical mechanism leading f...

journal_title：Diabetes

authors： Tanaka J,Qiang L,Banks AS,Welch CL,Matsumoto M,Kitamura T,Ido-Kitamura Y,DePinho RA,Accili D

更新日期：2009-10-01 00:00:00

abstract：:Mutation of tub gene in mice induces obesity, suggesting that tub could be an important regulator of energy balance. In the current study, we investigated whether insulin, leptin, and obesity can modulate Tub in vivo in hypothalamic nuclei, and we investigated possible consequences on energy balance, neuropeptide expr...

journal_title：Diabetes

authors： Prada PO,Quaresma PG,Caricilli AM,Santos AC,Guadagnini D,Morari J,Weissmann L,Ropelle ER,Carvalheira JB,Velloso LA,Saad MJ

更新日期：2013-01-01 00:00:00

abstract：OBJECTIVE:Progressive fibrosis in the diabetic kidney is driven and sustained by a diverse range of profibrotic factors. This study examines the critical role of microRNAs (miRNAs) in the regulation of the key fibrotic mediators, TGF-β1 and TGF-β2. RESEARCH DESIGN AND METHODS:Rat proximal-tubular epithelial cells (NRK...

journal_title：Diabetes

authors： Wang B,Koh P,Winbanks C,Coughlan MT,McClelland A,Watson A,Jandeleit-Dahm K,Burns WC,Thomas MC,Cooper ME,Kantharidis P

更新日期：2011-01-01 00:00:00

abstract：:Hepatic Notch signaling is inappropriately activated in obese/insulin-resistant mouse models. Genetic or pharmacologic inhibition of hepatic Notch signaling in obese mice simultaneously improves glucose tolerance and reduces hepatic triglyceride content. As such, we predicted that Notch signaling in human liver would ...

journal_title：Diabetes

authors： Valenti L,Mendoza RM,Rametta R,Maggioni M,Kitajewski C,Shawber CJ,Pajvani UB

更新日期：2013-12-01 00:00:00

abstract：:The influence of cyclic AMP (cAMP) and extracellular calcium on phosphoinositide (PI) hydrolysis in isolated islets was assessed and related to insulin output. Three stimulants were chosen to activate the beta-cell: sulfated cholecystokinin (CCK-8S, 200 nM), high-level glucose (20 mM), and the sulfonylurea tolbutamide...

journal_title：Diabetes

authors： Zawalich WS,Diaz VA,Zawalich KC

更新日期：1988-11-01 00:00:00

abstract：:Diabetes is associated with a loss of somatosensory and motor function, leading to impairments in gait, balance, and manual dexterity. Data-driven neuroimaging studies frequently report a negative impact of diabetes on sensorimotor regions in the brain; however, relationships with sensorimotor behavior are rarely cons...

journal_title：Diabetes

authors： Ferris JK,Inglis JT,Madden KM,Boyd LA

更新日期：2020-01-01 00:00:00

abstract：:Sodium-glucose cotransporter 2 (SGLT2) inhibitors are the most recently approved class of diabetes drugs. Unlike other agents, SGLT2 inhibitors act on the kidney to promote urinary glucose excretion. SGLT2 inhibitors provide multiple benefits, including decreased HbA1c, body weight, and blood pressure. These drugs hav...

journal_title：Diabetes

authors： Beitelshees AL,Leslie BR,Taylor SI

更新日期：2019-06-01 00:00:00

abstract：:We studied the cross-sectional relationship between HbA1c and cardiovascular disease (CVD) in the survivors of the original cohort of the Framingham Heart Study (n = 1045). HbA1c was significantly related to prevalent CVD among women but not men. HbA1c was also related to hypertension and to the ratio of total to high...

journal_title：Diabetes

authors： Singer DE,Nathan DM,Anderson KM,Wilson PW,Evans JC

更新日期：1992-02-01 00:00:00

abstract：:The effect of diabetes control on the activities of hydroxymethylglutaryl-CoA reductase (HMG-CoA reductase), cholesterol acyltransferase (ACAT), and phenol 2-monooxygenase, the major enzymes regulating cholesterol metabolism, was determined in alloxan-induced diabetic rabbits, and the results obtained were correlated ...

journal_title：Diabetes

authors： O'Meara NM,Devery RA,Owens D,Collins PB,Johnson AH,Tomkin GH

更新日期：1990-05-01 00:00:00

abstract：:We have applied cell-attached capacitance measurements to investigate whether synaptic-like microvesicles (SLMVs) undergo regulated exocytosis in insulinoma and primary pancreatic beta-cells. SLMV and large dense-core vesicle (LDCV) exocytosis was increased 1.6- and 2.4-fold upon stimulation with 10 mmol/l glucose in ...

journal_title：Diabetes

authors： MacDonald PE,Obermüller S,Vikman J,Galvanovskis J,Rorsman P,Eliasson L

更新日期：2005-03-01 00:00:00

abstract：:Effects of epinephrine (Epi) infusion on the absorption of subcutaneously injected 125I-labeled soluble human insulin (10 U) from the thigh or the abdomen were studied in 16 healthy subjects and from the thigh in 10 insulin-dependent diabetic (IDDM) patients. Epi was infused at 0.3 (high dose) or 0.1 (low dose; health...

journal_title：Diabetes

authors： Fernqvist E,Gunnarsson R,Linde B

更新日期：1988-06-01 00:00:00