Betatrophin: a hormone that controls pancreatic β cell proliferation.
Betatrophin: a hormone that controls pancreatic β cell proliferation.
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DOI:
10.1016/j.cell.2013.04.008
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发表时间:
2013-05-09
期刊:
影响因子:
64.5
通讯作者:
Melton DA
中科院分区:
文献类型:
--
作者:
Yi P;Park JS;Melton DA
Replenishing insulin-producing pancreatic β cell mass will benefit both type I and type II diabetics. In adults, pancreatic β cells are generated primarily by self duplication. We report on a novel mouse model of insulin resistance that induces dramatic pancreatic β cell proliferation and β cell mass expansion. Using this model we identify a new hormone, betatrophin, that is primarily expressed in liver and fat. Expression of betatrophin correlates with β cell proliferation in other mouse models of insulin resistance and during gestation. Transient expression of betatrophin in mouse liver significantly and specifically promotes pancreatic β cell proliferation, expands β cell mass, and improves glucose tolerance. Thus, betatrophin treatment could augment or replace insulin injections by increasing the number of endogenous insulin-producing cells in diabetics.
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DOI:
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