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糖尿病血管并发症线粒体氧化损伤机制及药物治疗进展 被引量:7

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摘要 各型糖尿病均以慢性高血糖、进展性血管病变为特征。糖尿病微血管病变是糖尿病视网膜病变、肾病及各种周围神经病变的主要原因。与糖尿病相关的进展性动脉粥样硬化则会影响心、脑及四肢远端的血供,使糖尿病患者有更高的心肌梗死、脑卒中及肢端坏死的风险。大量的临床研究表明,高血糖与糖尿病微血管并发症有显著相关性,而高血糖和胰岛素抵抗则是糖尿病大血管病变的重要原因。糖尿病早期微血管病变表现为高糖引起的血流异常、血管通透性增高,这反映了扩血管物质(如一氧化氮)活性降低,而缩血管物质(如血管紧张素Ⅱ、内皮素)活性增高,使血管通透性增高的因子[如血管内皮细胞生长因子(VEGF)]增多。糖尿病早期大血管异常表现为血管内皮功能障碍(选择性内皮依赖的血管舒张功能丧失)。
作者 时乐 黎蕾
出处 《中华老年医学杂志》 CAS CSCD 北大核心 2006年第3期228-231,共4页 Chinese Journal of Geriatrics
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