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首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >Zinc supplementation alleviates hyperglycemia and associated metabolic abnormalities in streptozotocin-induced diabetic rats
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Zinc supplementation alleviates hyperglycemia and associated metabolic abnormalities in streptozotocin-induced diabetic rats

机译:补充锌可缓解链脲佐菌素诱导的糖尿病大鼠的高血糖症和相关的代谢异常

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摘要

The cause and effect relationship between diabetes and zinc is complex and unclear. This animal study has examined the potential of zinc supplementation in beneficial modulating hyperglycemia, insulin secretion, and metabolic abnormalities associated with diabetes. The study was conducted in streptozotocin-induced diabetic rats. Groups of hyperglycemic rats were subjected to dietary interventions for 6 weeks with zinc supplementation (5 times and 10 times the normal level). Supplemental-zinc-fed diabetic groups showed significant control on hyperglycemia and hypoinsulinemia. There was a significant reduction in protein glycosylation, glucosuria, and urinary excretion of proteins and urea in diabetic animals maintained on a zinc-supplemented diet. Diabetic rats showed significantly higher plasma albumin and lower plasma urea and creatinine levels upon zinc supplementation. Significant alterations in insulin sensitivity indices HOMA-IR, HOMA-B, and QUICKI were also indicated by zinc supplementation. The pathological abnormalities in pancreatic islets of diabetic animals were significantly alleviated by dietary zinc intervention. This study provides the first evidence that zinc supplementation can partially ameliorate the severity of diabetic hyperglycemia and associated metabolic abnormalities, hypoinsulinemia, insulin resistance, and altered pancreatic morphology. Thus, zinc supplementation may offer a significant potential for clinical application in managing diabetic hyperglycemia and related metabolic complications.
机译:糖尿病与锌之间的因果关系是复杂且不清楚的。这项动物研究检查了补锌在有益调节高血糖,胰岛素分泌和与糖尿病相关的代谢异常方面的潜力。该研究是在链脲佐菌素诱导的糖尿病大鼠中进行的。高血糖大鼠组在饮食干预下补充锌(正常水平的5倍和10倍)达6周。补充锌的糖尿病组对高血糖和低胰岛素血症表现出明显的控制作用。维持锌补充饮食的糖尿病动物的蛋白质糖基化,糖尿和尿液中蛋白质和尿素的排泄显着减少。补充锌后,糖尿病大鼠血浆白蛋白明显升高,血浆尿素和肌酐水平降低。补充锌还表明胰岛素敏感性指数HOMA-IR,HOMA-B和QUICKI发生了显着变化。饮食锌干预可显着缓解糖尿病动物胰岛的病理异常。这项研究提供了第一个证据,表明补充锌可以部分缓解糖尿病性高血糖症的严重程度以及相关的代谢异常,低胰岛素血症,胰岛素抵抗和胰腺形态改变。因此,补锌可以为治疗糖尿病性高血糖症和相关代谢并发症提供重要的临床应用潜力。

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