Gut Microbiota is Altered in Patients with Alzheimer's Disease

Journal of Alzheimer's Disease : JAD
Zhen-Qian ZhuangYan-Jiang Wang

Abstract

Previous studies suggest that gut microbiota is associated with neuropsychiatric disorders, such as Parkinson's disease, amyotrophic lateral sclerosis, and depression. However, whether the composition and diversity of gut microbiota is altered in patients with Alzheimer's disease (AD) remains largely unknown. In the present study, we collected fecal samples from 43 AD patients and 43 age- and gender-matched cognitively normal controls. 16S ribosomal RNA sequencing technique was used to analyze the microbiota composition in feces. The composition of gut microbiota was different between the two groups. Several bacteria taxa in AD patients were different from those in controls at taxonomic levels, such as Bacteroides, Actinobacteria, Ruminococcus, Lachnospiraceae, and Selenomonadales. Our findings suggest that gut microbiota is altered in AD patients and may be involved in the pathogenesis of AD.

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Methods Mentioned

BETA
electrophoresis
PCR

Software Mentioned

R
LEfSe
DA
PLS
PyNAST
QIIME
SIMCA

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