Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactive Molecules, LaftamBio - Federal University of Pampa, Itaqui, Brazil.
Free Radic Res. 2021 Feb;55(2):198-209. doi: 10.1080/10715762.2021.1895992. Epub 2021 May 18.
Association to early mortality and sedentarism was already demonstrated in the literature; nevertheless, some possible biochemical mechanisms around physical inactivity still need answers. The use of an invertebrate model, such as , can reproduce reliable responses in inducing an exercise protocol with exogenous antioxidant supplementation. This study main evaluates the effect of exercise (EXE) associated with γ-oryzanol (ORY) supplementation to improve locomotor behavior, antioxidant defenses, and survival in . Two-day old flies were submitted to a protocol for seven days, divided into five groups: Control, Movement-Limited Flies (MLF), EXE, ORY [25µM], and EXE + ORY [25µM]. The survival rate was evaluated, followed by open field and negative geotaxis. Flies were euthanized and subjected to analysis for acetylcholinesterase (AChE) and antioxidant enzymes activity, glycidic and lipid parameters, body weight, reactive species (RS), and lipid peroxidation. EXE and EXE + ORY flies showed increased survival and locomotor activity, improved glycidic and lipid parameters, with a lower RS production, and increased antioxidant defenses compared to Control, and EXE + ORY when compared to the EXE group, obtained an increase in the ratio of protein levels/body weight, decreased ratio of triglyceride levels/body weight and decreased lipid peroxidation. However, MLF showed less survival and decreased locomotor activity, possibly due to increased AChE activity and reduced antioxidant defenses. The EXE and EXE + ORY demonstrate effective results in maintaining endogenous defenses, with increased locomotor activity, supporting evidence on EXE benefits, and supplementation with antioxidant compounds face of health paradigms.HighlightsNew protocol system of exercise on model.ORY demonstrates synergistic effect with EXE.Exercise with ORY supplementation increases locomotor behavior.Exercise with ORY supplementation decrease oxidative damages on flies.
运动与早逝和久坐行为有关,这在文献中已有报道;然而,一些关于身体不活动的可能生化机制仍需要解答。使用无脊椎动物模型,如 ,可以复制可靠的反应,在诱导具有外源性抗氧化剂补充的运动方案时。本研究主要评估运动(EXE)与γ-谷维素(ORY)补充相结合对改善 运动行为、抗氧化防御和生存的影响。两天大的苍蝇被提交给一个为期七天的方案,分为五组:对照、运动受限苍蝇(MLF)、EXE、ORY[25µM]和 EXE+ORY[25µM]。评估存活率,然后进行开阔场地和负趋地性测试。苍蝇被安乐死并进行乙酰胆碱酯酶(AChE)和抗氧化酶活性、糖和脂质参数、体重、活性物质(RS)和脂质过氧化分析。与对照相比,EXE 和 EXE+ORY 苍蝇表现出更高的存活率和运动活性,改善了糖和脂质参数,RS 产生减少,抗氧化防御增强,与 EXE 相比,EXE+ORY 组的蛋白质水平/体重比增加,甘油三酯水平/体重比降低,脂质过氧化降低。然而,MLF 显示出较低的存活率和降低的运动活性,可能是由于 AChE 活性增加和抗氧化防御降低。EXE 和 EXE+ORY 对维持内源性防御表现出有效的结果,运动活性增加,支持 EXE 益处的证据,以及补充抗氧化化合物以应对健康范式。亮点新型运动方案系统对 模型。ORY 与 EXE 表现出协同作用。运动与 ORY 补充相结合可增加苍蝇的运动行为。运动与 ORY 补充相结合可减少苍蝇的氧化损伤。