首页> 外文会议>International Symposium on Energy and Protein Metabolism and Nutrition >Changes in the expression of selected proteins elucidate skeletal muscle type-specific resistance to glucocorticoid-induced muscle cachexia
【24h】

Changes in the expression of selected proteins elucidate skeletal muscle type-specific resistance to glucocorticoid-induced muscle cachexia

机译:所选蛋白质表达的变化阐明骨骼肌型特异性对糖皮质激素诱导的肌肉恶病症的抗性

获取原文

摘要

Metabolic type of muscle fibres (oxidative vs. glycolytic) establishes considerable differences in skeletal muscle susceptibility to glucocorticoid-dependent (GD) muscle cachexia (MC). Excess of glucocorticoids evokes secondary diabetes mellitus (DM)associated with marked body weight loss. Thus, upon glucocorticoid overdose (DEX-treated rats received 1 mL of dexamethasone disodium phosphate (Sigma, St. Louis, MO, USA) dissolved in saline (0.85% w/v NaCl) by intragastric tube in a daily dose of 2 mg/kg BW/d during 5 consecutive d. oral treatment with 2 mg/kg BW/d) developing hyperglycemia is accompanied by oxidative stress (OS). It is believed that antioxidants might correct the consequences of OS. Furthermore, upon glucocorticoid-induced diabetic state the somatic index [(organ wet weightx 100/body weight), SI in percentage] of the gastrocnemius muscle (glycolytic-oxidative) is significantly reduced, whereas that of the soleus muscle (oxidative) is either at least unchanged or elevated. The aim ofthis study was to find out whether any remarkable changes in the expression of proteins that are crucial for insulin signalling and energy formation occur in the gastrocnemius (GM) vs. soleus muscle (SM) isolated from rats treated with dexamethasone (DEX), sodium ascorbate (ASC) or ascorbic acid phosphate (ASC-P) alone or combined together.
机译:代谢型肌纤维(氧化与糖酵解)建立在骨骼肌易感性糖皮质激素依赖性的(GD)肌肉恶病质(MC)相当大的差异。过量糖皮质激素的唤起具有显着的体重损失相关的继发性糖尿病(DM)。因此,在糖皮质激素过量(DEX处理的大鼠接受1毫升磷酸盐地塞米松二钠(Sigma公司,圣路易斯,MO,USA)溶解在盐水(0.85%重量/在每日剂量为2mg v NaCl中)通过胃内管/公斤体重/连续5 d期间天。用2毫克/公斤体重/ d)开发的高血糖症的口服治疗是伴随着氧化应激(OS)。据认为,抗氧化剂可能正确的操作系统所带来的后果。此外,当糖皮质激素诱导的糖尿病状态的体细胞指数腓肠肌(糖酵解氧化)的[(器官湿的weightx 100 /体重),SI在百分比]时显著下降,而该比目鱼肌(氧化)或者是至少不变或升高。目的ofthis研究是要找出任何显着的在那些对胰岛素信号传导和能量形成发生在腓肠肌关键蛋白的表达从大鼠分离的变化(GM)对比目鱼肌(SM)是否与地塞米松(DEX)处理,抗坏血酸钠(ASC)或抗坏血酸磷酸酯(ASC-P)单独使用或组合在一起。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号