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Homocysteine and Age-Related Central Nervous System Diseases: Role of Inflammation

Authors :
Amany Tawfik
Yusra Zaidi
Nehal M. Elsherbiny
Pragya Rajpurohit
Source :
International Journal of Molecular Sciences, International Journal of Molecular Sciences, Vol 22, Iss 6259, p 6259 (2021)
Publication Year :
2021

Abstract

Hyperhomocysteinemia (HHcy) is remarkably common among the aging population. The relation between HHcy and the development of neurodegenerative diseases, such as Alzheimer’s disease (AD) and eye diseases, and age-related macular degeneration (AMD) and diabetic retinopathy (DR) in elderly people, has been established. Disruption of the blood barrier function of the brain and retina is one of the most important underlying mechanisms associated with HHcy-induced neurodegenerative and retinal disorders. Impairment of the barrier function triggers inflammatory events that worsen disease pathology. Studies have shown that AD patients also suffer from visual impairments. As an extension of the central nervous system, the retina has been suggested as a prominent site of AD pathology. This review highlights inflammation as a possible underlying mechanism of HHcy-induced barrier dysfunction and neurovascular injury in aging diseases accompanied by HHcy, focusing on AD.

Details

ISSN :
14220067
Volume :
22
Issue :
12
Database :
OpenAIRE
Journal :
International journal of molecular sciences
Accession number :
edsair.doi.dedup.....51cb3ffcaa97d4457d1275b012bed243