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Leciejewska, N; Pruszynska-Oszmalek, E; Bien, J; Nogowski, L; Kolodziejski, P A
Journal of physiology and pharmacology : an official journal of the Polish Physiological Society 70, Številka: 4Journal Article
Synthetic ligands of androgen receptor (AR) are a standard in the treatment of androgen deficiency. One of the effects of androgen deficiency is the disturbance in the homeostasis of lipid metabolism. Till date, there are no effective compounds developed to treat androgen deficiency without having any side effects. Nonsteroidal selective androgen receptor modulators (SARMs) are a promising solution for various clinical indications. In this study, we investigated the effect of ostarine (enobosarm), a nonsteroidal SARM, on the rat adipocyte metabolism using in vitro techniques. Isolated rat adipocytes were incubated in the presence of different concentrations of ostarine. Control incubation with testosterone as the natural ligand for AR was performed. AR inhibitors were used to investigate the genomic activity of ostarine. Changes in the intensity of lipolysis, lipogenesis, and the secretion of leptin and adiponectin were measured. Moreover, the gene expression of leptin and adiponectin was assessed. For the first time, we have shown that ostarine has a significant effect on the intensity of lipid metabolism. Ostarine downregulates the expression of leptin and adiponectin mRNAs, as well as decreases their release from rat adipocytes. According to our results, ostarine acts via AR with a similar effect as testosterone in the regulation of lipid metabolism and endocrine function of mature rat adipocytes in vitro. Our results indicate the need for further studies on the effects of SARM on the whole organism.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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