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- W2987292023 abstract "Abstract AMP-activated protein kinase (AMPK) is present in different kinds of metabolically active cells. AMPK is an important intracellular energy sensor and plays a relevant role in whole-body energy homeostasis. AMPK is activated, among others, in response to glucose deprivation, caloric restriction and increased physical activity. Upon activation, AMPK affects metabolic pathways leading to increased formation of ATP and simultaneously reducing ATP-consuming processes. AMPK is also expressed in pancreatic β cells and is largely regulated by glucose, which is the main physiological stimulator of insulin secretion. Results of in vitro studies clearly show that glucose-induced insulin release is associated with a concomitant inhibition of AMPK in β cells. However, pharmacological activation of AMPK significantly potentiates the insulin-secretory response of β cells to glucose and to some other stimuli. This effect is primarily due to increased intracellular calcium concentrations. AMPK is also involved in the regulation of gene expression and may protect β cells against glucolipotoxic conditions. It was shown that in pancreatic islets of humans with type 2 diabetes, AMPK is downregulated. Moreover, studies with animal models demonstrated impaired link between glucose and AMPK activity in pancreatic islet cells. These data suggest that AMPK may be a target for compounds improving the functionality of β cells. However, more studies are required to better elucidate the relevance of AMPK in the (patho)physiology of the insulin-secreting cells." @default.
- W2987292023 created "2019-11-22" @default.
- W2987292023 creator A5015498008 @default.
- W2987292023 creator A5026012782 @default.
- W2987292023 date "2019-11-01" @default.
- W2987292023 modified "2023-10-05" @default.
- W2987292023 title "The relevance of AMP-activated protein kinase in insulin-secreting β cells: a potential target for improving β cell function?" @default.
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- W2987292023 doi "https://doi.org/10.1007/s13105-019-00706-3" @default.
- W2987292023 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6920233" @default.
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