Title:Gut Microbiota and Alzheimer’s Disease: Experimental Evidence and Clinical Reality
Volume: 18
Issue: 10
关键词:
阿尔茨海默病,神经变性,肠道微生物群,肠脑轴,淀粉样前体蛋白,淀粉样β肽。
摘要: Alzheimer’s disease (AD) is characterized by progressive death of neuronal cells in the
regions of the brain concerned with memory and cognition, and is the major cause of dementia in
the elderly population. Various molecular mechanisms, metabolic risk factors and environmental
triggers contributing to the genesis and progression of AD are under intense investigations. The present
review has dealt with the impact of a highly discussed topic of gut microbiota affecting the
neurodegeneration in the AD brain. A detailed description of the composition of gut bacterial flora
and its interaction with the host has been presented, followed by an analysis of key concepts of bidirectional
communication between gut microbiota and the brain. The substantial experimental evidence
of gut microbiota affecting the neurodegenerative process in experimental AD models has
been described next in this review, and finally, the limitations of such experimental studies vis-avis
the actual disease and the paucity of clinical data on this topic have also been mentioned.