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在实验性糖尿病中,内皮功能障碍和功能障碍的发展背后的机制分析及其病原学纠正
S G Dzugkoev1, F S Dzugkoeva2, O I Margieva2
1Institute of Biomedical Research, Branch of Federal Scientific Center "Vladikavkaz Scientific Center", Russian Academy of Sciences, Vladikavkaz, the Republic of North Ossetia - Alania, Russia. patbiochem@mail.ru.
这项研究表明,L-氨酸和L-氨酸的联合治疗改善了糖尿病大鼠的氧化 (NO) 生产和内皮功能. 这种方法可以预防1型糖尿病的微血管并发症.
科学领域:
- 生物医学科学 生物医学科学
- 心血管研究研究心血管研究
- 代谢障碍 代谢障碍 代谢障碍
背景情况:
- 在老鼠中,阿洛诱导的糖尿病会导致氧化应激,并损害氧化 (NO) 的产生.
- 糖尿病中的内皮功能障碍与异位性LDL的增加,L-氨酸对内皮NO合成酶 (eNOS) 的可用性降低以及不对称二甲基氨酸 (L-NAME) 等eNOS抑制剂的增加有关.
- 这些因素导致实验性糖尿病中eNOS表达的减少.
研究的目的:
- 为了研究L-氨酸和L-氨酸对NO生产,eNOS表达和相关的代谢/功能障碍在糖尿病的老鼠模型的影响.
- 评估这种组合疗法在预防微血管并发症方面的潜力.
主要方法:
- 使用了一种阿洛克桑诱导的糖尿病小鼠模型.
- 单独使用L-氨酸和与L-卡尼丁结合使用.
- 测量了NO代谢物,eNOS表达水平,脏电解质分泌功能,Na,K-ATPase活性,以及血中的器官特异性酶水平.
主要成果:
- L-阿尔金因和L-卡尼丁的联合治疗显著增加了NO代谢产量 (2.13倍) 和eNOS表达水平 (3.8倍).
- 观察到脏电解质分泌的改善和器官同质体中Na,K-ATPase活性增加.
- 血中器官特异性酶的减少,表明器官损伤减少.
结论:
- 结合L-氨酸和L-氨酸有效地纠正与实验糖尿病相关的代谢和功能障碍.
- 这种治疗策略具有病原遗传学依据,有望预防1型糖尿病中微血管并发症.
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