• Scientific reports · Aug 2020

    The alteration of gut microbiome and metabolism in amyotrophic lateral sclerosis patients.

    • Qianqian Zeng, Jie Shen, Kangzhi Chen, Jinxia Zhou, Qiao Liao, Ke Lu, Jiao Yuan, and Fangfang Bi.
    • Department of Neurology, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha City, 410008, Hunan Province, China.
    • Sci Rep. 2020 Aug 3; 10 (1): 12998.

    AbstractAmyotrophic lateral sclerosis (ALS) is a neurodegenerative disease accompanied with severe paralysis or even death, while the pathogenesis of ALS is still unclear and no effective therapy exists. The accumulating evidence has indicated the association between gut microbiota and various neurological diseases. Thus, to explore the potential role of gut microbiome in ALS, 20 patients diagnosed with probable or definite ALS and 20 healthy controls were enrolled and their fecal excrements were collected. The analysis of fecal community diversity with 16S rDNA sequencing showed an obvious change in microbial structure of ALS patients, where Bacteroidetes at the phylum level and several microbes at the genus level were up-regulated, while Firmicutes at the phylum level and Megamonas at the genus level were down-regulated compared to healthy controls. Additionally, decreased gene function associated with metabolic pathways was observed in ALS patients. The metagenomics further demonstrated the discrepancies in microflora at the species level and relevant metabolites thereof were also revealed when combined with metabolomics. In conclusion, the altered composition of the gut microbiota and metabolic products in ALS patients provided deeper insights into the pathogenesis of ALS, and these biomarkers might be established as potential therapeutic targets which deserve further exploration.

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