8中药治疗进展 祖国医学认为DR是中医“消渴病”的眼部并发症。王施红等[20]采用三白止血胶囊其主要成分为鱼膘、三七、熊胆。应用于临床观察表明出血吸收有效率为72.27%,渗出吸收率37.5%,血管瘤减少有效率为13.63%。郑燕林等通过组织病理学观察发现,水蛭素可以抑制增生性DR的进展。目前人们普遍认为细胞Ca2+超载是细胞死亡的最后通路,细胞内Ca2+超载可以引起一系列的功能障碍。银杏叶及其内酯B可以保护小鼠神经元对抗谷胺酸的损害,阻止谷胺酸诱发的Ca2+内流的升高,从而起到保护神经细胞的作用[21]。银杏叶能够抑制自由基产生,清除自由基,对缺血再灌注、光毒作用、炎症等引起的视网膜结构和功能的损害具有保护作用[22]。川芎嗪、葛根素均能够改善微循环,对DR也有肯定的治疗作用。 总之,DR的高发病率、高致盲率、高复发率的特点,严重的威胁着人类的生存质量。虽然医务工作者对DR发病机制的不断深入探索研究,现仍缺乏有效的治疗手段。因此,治疗原发病——DM是根本。
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