Results 51 to 60 of about 131,508 (302)

Cyclic AMP signalling in pancreatic islets

, 2010
Cyclic 3'5'AMP (cAMP) is an important physiological amplifier of glucose-induced insulin secretion by the pancreatic islet β-cell, where it is formed by the activity of adenylyl cyclases, which are stimulated by glucose, through elevation in ...
Nigel J. Pyne, Pyne, Nigel J., Brian Furman, Wee Kiat Ong, Furman, Brian L., Ong, Wee Kiat, Ong, W.K., Furman, Brian   +7 more
core   +1 more source

2-Ketoisocaproate transport in insulin-secreting cells

Bioscience Reports, 1992
The transport of the nutrient secretagogue 2-ketoisocaproate (KIC) was studied in isolated rat pancreatic islets and in the HIT-T15 insulinoma cell line using an oil-filtration technique. In both islets and HIT-T15 cells, KIC uptake was a slow process, not reaching equilibrium within 10 min KIC transport was not dependent upon Na+ in the medium, was ...
L, Best, R, Trebilcock, S, Tomlinson
openaire   +2 more sources

Genetically Engineered Islets and Alternative Sources of Insulin-Producing Cells for Treating Autoimmune Diabetes: Quo Vadis?

International Journal of Endocrinology, 2012
Islet transplantation is a promising therapy for patients with type 1 diabetes that can provide moment-to-moment metabolic control of glucose and allow them to achieve insulin independence. However, two major problems need to be overcome: (1) detrimental
Feng-Cheng Chou, Shing-Hwa Huang, Huey-Kang Sytwu   +2 more
doaj   +1 more source

Loss of AMP-activated protein kinase alpha 2 subunit in mouse beta-cells impairs glucose-stimulated insulin secretion and inhibits their sensitivity to hypoglycaemia [PDF]

, 2010
AMPK (AMP-activated protein kinase) signalling plays a key role in whole-body energy homoeostasis, although its precise role in pancreatic beta-cell function remains unclear.
Withers, DJ, Ashford, ML, Smith, Mark A., Al-Qassab, H, Piipari, K, Piipari, Kaisa, Al-Qassab, Hind, Smith, Mark A, Viollet, Benoit, Ashford, Michael Lj, Viollet, B, Beall, Craig, Smith, MA, Withers, Dominic J, Parker, N, Carling, David, Parker, Nadeene, Withers, Dominic J., Ashford, Michael L. J.; id_orcid, Beall, C, Carling, D   +20 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

In Vitro Proliferation of Porcine Pancreatic Islet Cells for β-Cell Therapy Applications

Journal of Diabetes Research, 2016
β-Cell replacement through transplantation is the only curative treatment to establish a long-term stable euglycemia in diabetic patients. Owing to the shortage of donor tissue, attempts are being made to develop alternative sources of insulin-secreting ...
Guoguang Niu, John P. McQuilling, Yu Zhou, Emmanuel C. Opara, Giuseppe Orlando, Shay Soker   +5 more
doaj   +1 more source

Insulin-stimulated phosphorylation of endothelial nitric oxide synthase at serine-615 contributes to nitric oxide synthesis [PDF]

, 2009
Insulin stimulates endothelial NO (nitric oxide) synthesis via PKB (protein kinase B)/Akt-mediated phosphorylation and activation of eNOS (endothelial NO synthase) at Ser-1177.
Boyd, Alasdair R., Stuart A. Ritchie, Ian P. Salt, Salt, Ian P., Kohlhaas, Christine F, Yalla, Krishna C, Kohlhaas, Christine F., Boyd, Alasdair R, Krishna C. Yalla, Walsh, Kenneth, Ritchie, Stuart A, John M. C. Connell, Christine F. Kohlhaas, Kenneth Walsh, Ritchie, Stuart A., Connell, John M.C., Connell, John Mc, Salt, Ian P, Alasdair R. Boyd, Yalla, Krishna C.   +19 more
core   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Calbindin-D9k Ablation Disrupt Glucose/Pancreatic Insulin Homeostasis.

PLoS ONE, 2016
It has been proposed that cellular Ca2+ signals activate hormone secretion. In pancreatic β cells, which produce insulin, Ca2+ signals have been known to contribute to insulin secretion.
Changhwan Ahn, Dongoh Lee, Jae-Hwan Lee, Hyun Yang, Beum-Soo An, Eui-Bae Jeung   +5 more
doaj   +1 more source

Ca2+, NAD(P)H and membrane potential changes in pancreatic beta-cells by methyl succinate: comparison with glucose

, 2007
The present study was undertaken to determine the main metabolic secretory signals generated by the mitochondrial substrate MeS (methyl succinate) compared with glucose in mouse and rat islets and to understand the differences.
Schultz, Vera, Deeney, Jude T., Corkey, Richard F., Shirihai, Orian, Yaney, Gordon C., Luc, Esthere, Corkey, Barbara E., Liu, Lihan, Heart, Emma, Smith, Peter J.S., Tornheim, Keith   +10 more
core   +1 more source