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Researchers propose 'RNAkine' nomenclature for naming extracellular ncRNAs phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.
Obesity doesn't always mean ill health. Here's what scientists are learning | Science science.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from science.org Daily Mail and Mail on Sunday newspapers.
Obesity doesn't always mean ill health. Here's what scientists are learning | Science sciencemag.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sciencemag.org Daily Mail and Mail on Sunday newspapers.
In a new study published in Journal of Extracellular Vesicles, Chen-Yu Zhang s group and Antonio Vidal-Puig s group at University of Cambridge report that pancreatic β cells secrete miR-29 family members (miR-29a, miR-29b and miR-29c) in response to high levels of free fatty acids (FFAs). These β cell-derived miR-29s are delivered to the liver, promoting insulin resistance and enhancing hepatic glucose output. Over 100 years after insulin was discovered, it was believed that pancreatic β cells only secreted a single hormone insulin. Pancreatic β cell-derived insulin regulates glucose homeostasis by binding with the insulin receptors located in the liver, skeletal muscle, adipose tissues and other peripheral organs. The discovery of insulin and its receptor was essential to understand the mechanisms controlling glucose homeostasis and the pathogenesis of type 2 diabetes defined by defective insulin secretion, signal transduction and insulin resistance. However, gluco ....
In a new study published in Journal of Extracellular Vesicles, Chen-Yu Zhang s group at Nanjing University, School of Life Sciences, and Antonio Vidal-Puig s group at University of Cambridge report that pancreatic β cells secrete miR-29 family members (miR-29s) via exosomes in response to high levels of free fatty acids (FFAs). Theses β cell-derived exosomal miR-29s regulate glucose homeostasis through their manipulations on glucose output in liver. Previously, Chen-Yu Zhang s group identified extracellular miRNA as a new form of cell-to-cell communication. They are among the first that reported the selective secretion of miRNAs under different physiological or pathological states; also, the uptake and function of secreted miRNAs in recipient cells. In the past decade, intensive studies have revealed the role of extracellular miRNAs in a range of biological processes. Thus, as a newly-emerged secretory factor, more insightful studies are needed to further reveal its re ....