Comparison of alpha- and beta-cell secretory responses in islets isolated with collagenase and in the isolated perfused pancreas of rats.

abstract：:Previous studies have indicated that individuals with type 2 diabetes have an increased resting metabolic rate (RMR) but decreased insulin-induced thermogenesis (IIT) compared with those with normal glucose tolerance (NGT). When and by which mechanisms these abnormalities occur during the development of diabetes remai...

journal_title：Diabetes

authors： Weyer C,Bogardus C,Pratley RE

更新日期：1999-08-01 00:00:00

abstract：:The pancreatic and duodenal homeobox factor-1 (PDX-1), also known as IDX-1/STF-1/IPF1, a homeodomain-containing transcription factor, plays a central role in regulating pancreatic development and insulin gene transcription. Furthermore, even in adults, PDX-1 is associated with islet neogenesis and differentiation of i...

journal_title：Diabetes

authors： Noguchi H,Kaneto H,Weir GC,Bonner-Weir S

更新日期：2003-07-01 00:00:00

abstract：OBJECTIVE:Insulin stimulates glucose transport in skeletal muscle by GLUT4 translocation from intracellular compartments to sarcolemma and t-tubules. We studied in living animals the recruitment of GLUT4 vesicles in more detail than previously done and, for the first time, analyzed the steady-state recycling and subseq...

journal_title：Diabetes

authors： Lauritzen HP,Galbo H,Brandauer J,Goodyear LJ,Ploug T

更新日期：2008-02-01 00:00:00

abstract：:To evaluate possible advantages of human insulin of recombinant DNA origin (HI) in the treatment of diabetic patients, we compared cellular and humoral immunoreactivities of HI and porcine insulin (PI). Anti-insulin IgE bound equal amounts of 125I-HI and 125I-PI. There was no difference between HI- and PI-stimulated l...

journal_title：Diabetes

authors： Kumar D,Alexander CM,Zeidler A,Rhodes JJ,Boarman CC,Hoopes MT

更新日期：1983-06-01 00:00:00

abstract：:Previous studies have demonstrated that the ventromedial hypothalamus (VMH) plays a critical role in sensing and responding to systemic hypoglycemia. To evaluate the mechanisms of defective counterregulation caused by iatrogenic hypoglycemia and diabetes per se, we delivered 2-deoxy-glucose (2-DG) via microdialysis in...

journal_title：Diabetes

authors： Borg MA,Borg WP,Tamborlane WV,Brines ML,Shulman GI,Sherwin RS

更新日期：1999-03-01 00:00:00

abstract：:Glucose-dependent insulinotropic polypeptide (GIP) and GLP-1 are incretins secreted by respective K and L enteroendocrine cells after eating and amplify glucose-stimulated insulin secretion (GSIS). This amplification has been termed the "incretin response." To determine the role(s) of K cells for the incretin response...

journal_title：Diabetes

authors： Zhang S,Wang S,Puhl MD,Jiang X,Hyrc KL,Laciny E,Wallendorf MJ,Pappan KL,Coyle JT,Wice BM

更新日期：2015-04-01 00:00:00

abstract：:In the transgenic mouse, a specific gene can be transduced or deleted to study its function and relation to human diseases. Recently, various lines of transgenic mice that overexpress or lack a specific gene have been established and are available to study the pathophysiology of human diseases, including atheroscleros...

journal_title：Diabetes

authors： Harada K,Shimano H,Ishibashi S,Yamada N

更新日期：1996-07-01 00:00:00

abstract：:Diabetes diagnostic therapy and research would strongly benefit from noninvasive accurate imaging of the functional β-cells in the pancreas. Here, we developed an analysis of functional β-cell mass (BCM) by measuring manganese (Mn(2+)) uptake kinetics into glucose-stimulated β-cells by T1-weighted in vivo Mn(2+)-media...

journal_title：Diabetes

authors： Meyer A,Stolz K,Dreher W,Bergemann J,Holebasavanahalli Thimmashetty V,Lueschen N,Azizi Z,Khobragade V,Maedler K,Kuestermann E

更新日期：2015-06-01 00:00:00

abstract：:Insulin signaling in vascular endothelial cells (ECs) is critical to maintain endothelial function but also to mediate insulin action on peripheral glucose disposal. However, gene knockout studies have reached disparate conclusions. Thus, insulin receptor inactivation in ECs does not impair insulin action, whereas ina...

journal_title：Diabetes

authors： Tsuchiya K,Accili D

更新日期：2013-05-01 00:00:00

abstract：:C57BL/6 (B6) mice develop glucose intolerance with age, whereas C3H/He (C3H) mice do not. In this study, we examined whether this differential glucose homeostasis was associated with differences of proteolytic activation of pancreatic prohormones. Radioimmunoassays showed comparable levels of fasting plasma insulin be...

journal_title：Diabetes

authors： Schmidt G,Sirois F,Anini Y,Kauri LM,Gyamera-Acheampong C,Fleck E,Scott FW,Chrétien M,Mbikay M

更新日期：2006-02-01 00:00:00

abstract：:Calcium/calmodulin-dependent protein kinase (CaMK) activation induces mitochondrial biogenesis in response to increasing cytosolic calcium concentrations. Calcium leak from the ryanodine receptor (RyR) is regulated by reactive oxygen species (ROS), which is increased with high-fat feeding. We examined whether ROS-indu...

journal_title：Diabetes

authors： Jain SS,Paglialunga S,Vigna C,Ludzki A,Herbst EA,Lally JS,Schrauwen P,Hoeks J,Tupling AR,Bonen A,Holloway GP

更新日期：2014-06-01 00:00:00

abstract：:Glucose-dependent insulinotropic polypeptide (GIP) is an incretin hormone with extrapancreatic effects beyond glycemic control. Here we demonstrate unexpected effects of GIP signaling in the vasculature. GIP induces the expression of the proatherogenic cytokine osteopontin (OPN) in mouse arteries via local release of ...

journal_title：Diabetes

authors： Berglund LM,Lyssenko V,Ladenvall C,Kotova O,Edsfeldt A,Pilgaard K,Alkayyali S,Brøns C,Forsblom C,Jonsson A,Zetterqvist AV,Nitulescu M,McDavitt CR,Dunér P,Stancáková A,Kuusisto J,Ahlqvist E,Lajer M,Tarnow L,Madsbad S

更新日期：2016-01-01 00:00:00

abstract：:The T-type Ca2+ channel is an important determinant of electrical activity and of Ca2+ influx in rat and human pancreatic beta-cells. We have identified and sequenced a cDNA encoding a T-type Ca2+ channel alpha1-subunit derived from INS-1, the rat insulin-secreting cell line. The sequence of the cDNA indicates a prote...

journal_title：Diabetes

authors： Zhuang H,Bhattacharjee A,Hu F,Zhang M,Goswami T,Wang L,Wu S,Berggren PO,Li M

更新日期：2000-01-01 00:00:00

abstract：:Type 1 diabetes results from chronic autoimmune destruction of insulin-producing β-cells within pancreatic islets. Although insulin is a critical self-antigen in animal models of autoimmune diabetes, due to extremely limited access to pancreas samples, little is known about human antigenic targets for islet-infiltrati...

journal_title：Diabetes

authors： Michels AW,Landry LG,McDaniel KA,Yu L,Campbell-Thompson M,Kwok WW,Jones KL,Gottlieb PA,Kappler JW,Tang Q,Roep BO,Atkinson MA,Mathews CE,Nakayama M

更新日期：2017-03-01 00:00:00

abstract：:Altered proteoglycan metabolism may play a role in the development of diabetic glomerulopathy. This study was conducted to examine the effects of glucose on the production and physical characteristics of proteoglycans generated by rat mesangial cells in culture. Rat mesangial cells were exposed to elevated glucose med...

journal_title：Diabetes

authors： Silbiger S,Schlondorff D,Crowley S,Rosenberg L,Choi H,Hatcher V,Gordon P

更新日期：1993-12-01 00:00:00

abstract：:Diet-induced obesity is known to cause peripheral insulin resistance in rodents. We have recently found that feeding cod protein to high-fat-fed rats prevents the development of insulin resistance in skeletal muscle. In the present study, we have further explored the cellular mechanisms behind this beneficial effect o...

journal_title：Diabetes

authors： Tremblay F,Lavigne C,Jacques H,Marette A

更新日期：2003-01-01 00:00:00

abstract：:Obesity is a common problem in Western society and is associated with significant morbidity and mortality. Energy homeostasis is regulated by a complex system involving both peripheral signals such as leptin and a number of orexigenic and anorectic neuropeptides. Obesity can result from dysregulation of the peripheral...

journal_title：Diabetes

authors： Bradley RL,Kokkotou EG,Maratos-Flier E,Cheatham B

更新日期：2000-07-01 00:00:00

abstract：:Islet transplantation is a potential treatment for type 1 diabetes, but the shortage of donor organs limits its routine application. As potential donor animals, we generated transgenic pigs expressing LEA29Y, a high-affinity variant of the T-cell costimulation inhibitor CTLA-4Ig, under the control of the porcine insul...

journal_title：Diabetes

authors： Klymiuk N,van Buerck L,Bähr A,Offers M,Kessler B,Wuensch A,Kurome M,Thormann M,Lochner K,Nagashima H,Herbach N,Wanke R,Seissler J,Wolf E

更新日期：2012-06-01 00:00:00

abstract：:Isologous pancreatic islets were implanted into the portal vein of rats with streptozotocin-induced diabetes. At intervals of from one to 32 days after transplantation, the intrahepatic islet grafts were examined histologically and ultrastructurally, and their vascular supply was determined by later perfusion studies....

journal_title：Diabetes

authors： Griffith RC,Scharp DW,Hartman BK,Ballinger WF,Lacy PE

更新日期：1977-03-01 00:00:00

abstract：OBJECTIVE:Dipeptidyl peptidase-4 (DPP4) inhibitors lower blood glucose in diabetic subjects; however, the mechanism of action through which these agents improve glucose homeostasis remains incompletely understood. Although glucagon-like peptide (GLP)-1 and glucose-dependent insulinotropic polypeptide (GIP) represent im...

journal_title：Diabetes

authors： Flock G,Baggio LL,Longuet C,Drucker DJ

更新日期：2007-12-01 00:00:00

abstract：:Key parameters of the endocrine pancreas, such as islet number, islet mass, beta-cell mass, and alpha-cell mass, were studied in different strains of inbred mice to investigate the impact of genetic background on the size and structure of the endocrine pancreas. Six mice from each of seven different strains of inbred ...

journal_title：Diabetes

authors： Bock T,Pakkenberg B,Buschard K

更新日期：2005-01-01 00:00:00

abstract：:Longitudinal electron-microscopic and morphometric studies of autonomic nerves containing predominantly parasympathetic fibers were undertaken in the spontaneously diabetic BB rat. Unmyelinated fibers of the diabetic vagus nerve and myelinated fibers of the penile nerve showed increased numbers of axonal glycogenosome...

journal_title：Diabetes

authors： Yagihashi S,Sima AA

更新日期：1986-07-01 00:00:00

abstract：:Previous studies of diabetic renovascular complications have measured morphologic changes in relatively few glomerular vessels by electron microscopy. The present study samples 20,000 to 80,000 glomeruli from each of ten nondiabetic and ten diabetic age- and sex-matched subjects. Glomeruli were isolated and fractionat...

journal_title：Diabetes

authors： Klein L,Butcher DL,Sudilovsky O,Kikkawa R,Miller M

更新日期：1975-12-01 00:00:00

abstract：:Type 1 diabetes is a major histocompatibility complex (MHC) class II-associated autoimmune disease mediated by beta-cell-specific T-cells and characterized by circulating autoantibodies to beta-cell molecules. In the BB/Wor diabetes-prone (DP) rat, type 1 diabetes develops spontaneously with an incidence of >90%. BB d...

journal_title：Diabetes

authors： Ellerman KE,Like AA

更新日期：1999-05-01 00:00:00

abstract：:Carbohydrate-responsive element-binding protein (ChREBP) is a glucose-sensing transcription factor required for glucose-stimulated proliferation of pancreatic β-cells in rodents and humans. The full-length isoform (ChREBPα) has a low glucose inhibitory domain (LID) that restrains the transactivation domain when glucos...

journal_title：Diabetes

authors： Zhang P,Kumar A,Katz LS,Li L,Paulynice M,Herman MA,Scott DK

更新日期：2015-12-01 00:00:00

abstract：:Clinical studies indicate that significant loss of functional islet mass occurs in the peritransplant period. Islets are injured as a result of detrimental effects of brain death, pancreas preservation, islet isolation, hypoxia, hyperglycemia, and immune-mediated events. In addition, recent studies demonstrated that i...

journal_title：Diabetes

authors： Contreras JL,Eckstein C,Smyth CA,Bilbao G,Vilatoba M,Ringland SE,Young C,Thompson JA,Fernández JA,Griffin JH,Eckhoff DE

更新日期：2004-11-01 00:00:00

abstract：:The antihyperglycemic drug dimethylbiguanide (DMB, also known as metformin) reduces the risk of cardiovascular complications in type 2 diabetes, although the mechanism(s) involved are unclear. DMB reduces glycosylation-related protein cross-linking, a process similar to fibrin cross-linking catalyzed by activated fact...

journal_title：Diabetes

authors： Standeven KF,Ariëns RA,Whitaker P,Ashcroft AE,Weisel JW,Grant PJ

更新日期：2002-01-01 00:00:00

abstract：:The possible influence of diabetes on the higher mnestic and cognitive functions has been investigated. The P300 wave latency, an endogenous electrophysiological event, was explored and compared with the multimodal short-latency evoked potential (EP) recordings (visual [VEP], brainstem auditory [BAEP], and median and ...

journal_title：Diabetes

authors： Pozzessere G,Valle E,de Crignis S,Cordischi VM,Fattapposta F,Rizzo PA,Pietravalle P,Cristina G,Morano S,di Mario U

更新日期：1991-08-01 00:00:00

abstract：:Neogenesis is crucial for the maintenance of beta-cell mass in the human pancreas and possibly for the outcome of clinical islet transplantation. To date, no studies have reported a stimulation of human beta-cell neogenesis in vivo. Therefore, we investigated whether human alpha-, beta-, and duct cell growth can be st...

journal_title：Diabetes

authors： Tyrberg B,Ustinov J,Otonkoski T,Andersson A

更新日期：2001-02-01 00:00:00

abstract：:Liver X receptors (LXRs) are important regulators of cholesterol and lipid metabolism and are also involved in glucose metabolism. However, the functional role of LXRs in human skeletal muscle is at present unknown. This study demonstrates that chronic ligand activation of LXRs by a synthetic LXR agonist increases the...

journal_title：Diabetes

authors： Kase ET,Wensaas AJ,Aas V,Højlund K,Levin K,Thoresen GH,Beck-Nielsen H,Rustan AC,Gaster M

更新日期：2005-04-01 00:00:00