黄芩素、黄芩苷和汉黄芩素:对脑和视网膜缺血性神经退行性变的保护作用。

Baicalein, Baicalin, and Wogonin: Protective Effects against Ischemia-Induced Neurodegeneration in the Brain and Retina.

机构信息

School of Optometry, The Hong Kong Polytechnic University, Hong Kong.

Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.

出版信息

Oxid Med Cell Longev. 2021 Jun 29;2021:8377362. doi: 10.1155/2021/8377362. eCollection 2021.

Abstract

Ischemia is a common pathological condition present in many neurodegenerative diseases, including ischemic stroke, retinal vascular occlusion, diabetic retinopathy, and glaucoma, threatening the sight and lives of millions of people globally. Ischemia can trigger excessive oxidative stress, inflammation, and vascular dysfunction, leading to the disruption of tissue homeostasis and, ultimately, cell death. Current therapies are very limited and have a narrow time window for effective treatment. Thus, there is an urgent need to develop more effective therapeutic options for ischemia-induced neural injuries. With emerging reports on the pharmacological properties of natural flavonoids, these compounds present potent antioxidative, anti-inflammatory, and antiapoptotic agents for the treatment of ischemic insults. Three major active flavonoids, baicalein, baicalin, and wogonin, have been extracted from Georgi (); all of which are reported to have low cytotoxicity. They have been demonstrated to exert promising pharmacological capabilities in preventing cell and tissue damage. This review focuses on the therapeutic potentials of these flavonoids against ischemia-induced neurotoxicity and damage in the brain and retina. The bioactivity and bioavailability of baicalein, baicalin, and wogonin are also discussed. It is with hope that the therapeutic potential of these flavonoids can be utilized and developed as natural treatments for ischemia-induced injuries of the central nervous system (CNS).

摘要

缺血是许多神经退行性疾病中常见的病理状态,包括缺血性中风、视网膜血管闭塞、糖尿病性视网膜病变和青光眼,威胁着全球数百万人的视力和生命。缺血可引发过度的氧化应激、炎症和血管功能障碍,导致组织内稳态破坏,最终导致细胞死亡。目前的治疗方法非常有限,并且有效治疗的时间窗口很窄。因此,迫切需要开发更有效的治疗缺血性神经损伤的方法。随着天然类黄酮药理学特性的新兴报道,这些化合物作为治疗缺血性损伤的有效抗氧化、抗炎和抗细胞凋亡药物具有强大的作用。三种主要的活性类黄酮,黄芩素、黄芩苷和汉黄芩素,已从黄芩中提取出来();所有这些都被报道具有低细胞毒性。它们已被证明在预防细胞和组织损伤方面具有有希望的药理学作用。本综述重点介绍了这些类黄酮对脑和视网膜中缺血性神经毒性和损伤的治疗潜力。还讨论了黄芩素、黄芩苷和汉黄芩素的生物活性和生物利用度。希望这些类黄酮的治疗潜力能够被利用和开发为治疗中枢神经系统(CNS)缺血性损伤的天然疗法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bb8/8263226/82d4718dea77/OMCL2021-8377362.001.jpg

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