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The impact of high fructose on cardiovascular system: Role of alpha-lipoic acid

机译:高果糖对心血管系统的影响:α-硫辛酸的作用

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The aim of this study was to evaluate the role of alpha-lipoic acid (alpha-LA) on oxidative damage and inflammation that occur in endothelium of aorta and heart while constant consumption of high-fructose corn syrup (HFCS). The rats were randomly divided into three groups with each group containing eight rats. The groups include HFCS, HFCS + alpha-LA treatment, and control. HFCS was given to the rats at a ratio of 30% of F30 corn syrup in drinking water for I 0 weeks. alpha-LA treatment was given to the rats at a dose of 100 mg/kg/day orally for the last 6 weeks. At the end of the experiment, the rats were killed by cervical dislocation. The blood samples were collected for biochemical studies, and the aortic and cardiac tissues were collected for evaluation of oxidant-antioxidant system, tissue bath, and pathological examination. HFCS had increased the levels of malondialdehyde, creatine kinase MB, lactate dehydrogenase, and uric acid and showed significant structural changes in the heart of the rats by histopathology. Those changes were improved by alpha-LA treatment as it was found in this treatment group. Immunohistochemical expressions of tumor necrosis factor cc and inducible nitric oxide synthase were increased in HFCS group, and these receptor levels were decreased by alpha-LA treatment. All the tissue bath studies supported these findings. Chronic consumption of HFCS caused several problems like cardiac and endothelial injury of aorta by hyperuricemia and induced oxidative stress and inflammation. alpha-LA treatment reduced uric acid levels, oxidative stress, and corrected vascular responses. alpha-LA can be added to cardiac drugs due to its cardiovascular protective effects against the cardiovascular diseases.
机译:这项研究的目的是评估α-硫辛酸(α-LA)在持续摄入高果糖玉米糖浆(HFCS)时在主动脉和心脏的内皮细胞中发生的氧化损伤和炎症中的作用。将大鼠随机分为三组,每组八只大鼠。这些组包括HFCS,HFCS +α-LA治疗和对照。 HFCS以F30玉米糖浆在饮用水中的比例为30%的比例给予I 0周。在最后6周内以100 mg / kg /天的剂量对大鼠进行alpha-LA治疗。在实验结束时,通过颈脱位法杀死大鼠。收集血液样本进行生化研究,收集主动脉和心脏组织以评估氧化剂-抗氧化剂系统,组织浸浴和病理学检查。 HFCS增加了丙二醛,肌酸激酶MB,乳酸脱氢酶和尿酸的水平,并通过组织病理学显示了大鼠心脏的显着结构变化。如在该治疗组中发现的,这些改变通过α-LA治疗得到了改善。 HFCS组肿瘤坏死因子cc和诱导型一氧化氮合酶的免疫组织化学表达增加,而α-LA处理则使这些受体水平降低。所有组织浴研究均支持这些发现。长期服用HFCS会引起一些问题,例如高尿酸血症导致主动脉的心脏和内皮损伤,并引起氧化应激和炎症。 α-LA治疗可降低尿酸水平,氧化应激并纠正血管反应。由于α-LA对心血管疾病具有心血管保护作用,因此可以添加到心脏药物中。

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