نتایج جستجو برای: adipocyte
تعداد نتایج: 8923 فیلتر نتایج به سال:
The role of obestatin, a 23-amino-acid peptide encoded by the ghrelin gene, on the control of the metabolism of pre-adipocyte and adipocytes as well as on adipogenesis was determined. For in vitro assays, pre-adipocyte and adipocyte 3T3-L1 cells were used to assess the obestatin effect on cell metabolism and adipogenesis based on the regulation of the key enzymatic nodes, Akt and AMPK and their...
Background & Aims Iron has an increasingly recognized role in the regulation of adipose tissue function, including the expression of adipokines involved in the pathogenesis of nonalcoholic fatty liver disease. The cellular iron exporter, ferroportin, has been proposed as being a key determinant of adipocyte iron homeostasis. Methods We studied an adipocyte-specific ferroportin (Fpn1) knockout...
Expression of bone morphogenetic protein 4 (BMP4) in adipocytes of white adipose tissue (WAT) produces "white adipocytes" with characteristics of brown fat and leads to a reduction of adiposity and its metabolic complications. Although BMP4 is known to induce commitment of pluripotent stem cells to the adipocyte lineage by producing cells that possess the characteristics of preadipocytes, its e...
Dietary calcium inhibits adiposity, and a key underlying mechanism is suppression of calcitriol, which modulates Ca(2+) signaling and mitochondrial uncoupling in adipocytes. We demonstrated that calcitriol directly regulates adipocyte 11beta-HSD-1 expression and cortisol production in human adipocytes in vitro and dietary calcium inhibits visceral adipose tissue 11beta-HSD-1 expression in mice,...
Beige adipocytes emerge postnatally within the white adipose tissue in response to certain environmental cues, such as chronic cold exposure. Because of its highly recruitable nature and relevance to adult humans, beige adipocytes have gained much attention as an attractive cellular target for antiobesity therapy. However, molecular circuits that preferentially promote beige adipocyte biogenesi...
Chronic low-grade inflammation, adipocyte hypertrophy, and glucose intolerance are common features of obesity and a risk factor for cancer. Tumor necrosis factor (TNF) receptor-associated factor 6 (TRAF6) is an adaptor protein that also possesses a non-conventional E3 ubiquitin ligase activity. In response to receptor-mediated events, TRAF6 activates transforming growth factor-activated kinase ...
In this study, we explored the roles of microRNAs in adipocyte differentiation and metabolism. We first knocked down Argonaute2 (Ago2), a key enzyme in the processing of micro-RNAs (miRNAs), to investigate a potential role for miRNAs in adipocyte differentiation and/or metabolism. Although we did not observe dramatic differences in adipogenesis between Ago2 knock-down and control 3T3-L1 cells, ...
There are many known adipokines differentially secreted from the different adipose depots, however, their paracrine and autocrine effects on de novo adipocyte formation are not fully understood. By developing a co-culture method of pre-adipocytes with primary subcutaneous and visceral adipocytes or tissue explants, we could show that the total secretome inhibited preadipocyte differentiation. U...
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