同类氨酸和糖尿病视网膜病变
Chunyan Lei1, Zhongping Lv2, Qibo Ran1
1Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, 610041, China; Research Laboratory of Macular Disease, West China Hospital, Sichuan University, Chengdu, 610041, China.
Experimental eye research
|November 5, 2025
概括
超同胞蛋白血症 (HHcy) 通过破坏视网膜细胞和血视网膜屏障,显著恶化糖尿病视网膜病变 (DR). 需要进一步的研究来证实HHcy是风险因素,并测试针对DR的向疗法.
科学领域:
- 眼科医生 眼科 眼科
- 内分泌学 在内分泌学.
- 神经科学是一个神经科学.
背景情况:
- 糖尿病视网膜病变 (DR) 是导致失明的主要原因.
- 慢性高血糖是DR的已知危险因素之一.
- 新出现的证据表明,高homocysteinemia (HHcy) 也在DR进展中发挥着关键作用.
研究的目的:
- 审查HHcy在DR神经血管并发症中的多方面的作用.
- 阐明HHcy为视网膜损伤做出贡献的分子机制.
- 评估针对DR中的HHcy代谢的治疗潜力.
主要方法:
- 对HHcy和DR的临床前和临床研究的文献综述.
- 对涉及HHcy诱导的视网膜损伤的分子通路的分析.
- 对转化证据和治疗策略的批判性评估.
主要成果:
- HHcy 破坏视网膜神经血管单元,影响内皮细胞,神经元,质细胞和视网膜色素上皮.
- 分子机制包括氧化应激,炎症,ER应激,线粒体功能障碍和表观遗传变化.
- 临床前研究表明,HHcy与高血糖产生协同作用,导致视网膜损伤,但临床证据不一致.
结论:
- HHcy是DR病变发生的一个重要但未被充分认识到的因素.
- 用维生素B或贝他因准HHcy代谢显示出治疗的前景.
- 精心设计的临床试验对于验证HHcy作为可修改的风险因素和指导个性化DR干预措施至关重要.
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