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Purpose Pheochromocytomas and paragangliomas (PPGLs) are neuroendocrine tumors of neural crest origin. Germline or somatic mutations of numerous genes have been implicated in the pathogenesis of PPGLs, including the isocitrate dehydrogenase 1 (IDH1) gene and alpha thalassemia/mental retardation syndrome X-linked (ATRX) gene. Although concurrent IDH1 and ATRX mutations are frequently seen in gliomas,...
Interleukin 15 (IL-15) has recently been proposed as a circulating myokine involved in glucose uptake and utilization in skeletal muscle. However, the role and mechanism of IL-15 in exercise improving insulin resistance (IR) is unclear. Here, we investigated the alteration in expression of IL-15 and IL-15 receptor α (IL-15Rα) in skeletal muscle during treadmill running in rats with IR induced by a...
Increased cyclooxygenase-2 (COX-2) expression is associated with pancreatic β-cell dysfunction. We previously demonstrated that the transcription factor Ets-1 significantly up-regulated COX-2 gene promoter activity. In this report, we used the pancreatic β-cell line INS-1 and isolated rat islets to investigate whether Ets-1 could induce β-cell dysfunction through up-regulating COX-2 gene expression...
Interleukin 15 (IL-15) has recently been proposed as a myokine involved in regulating lipid metabolism. We investigated the effect of exercise training on IL-15 content in skeletal muscle and expression of IL-15 receptor (IL-15R) in adipose tissue of obese rats. After 12 weeks of a high-fat diet, obese rats underwent treadmill running at 26 m/min (60 min each, 5 days/week for 8 weeks). High-fat diet...
Many studies have shown that there is a relationship between gonadotropin-releasing hormone (GnRH) and glucose metabolism, but little is known about the effects of GnRH on the pancreas. Our experiment investigated the effect of GnRH on pancreatic islet cell in Sprague–Dawley (SD) rats fed with high-cholesterol diet before and during pregnancy. We found that although high-cholesterol diet led to no...
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