Abstract
Recent preclinical studies suggest that dysfunction of gastrointestinal tract may play a role in amyotrophic lateral sclerosis (ALS) pathogenesis through a modification of the gut microbiota brain axis. Our study is the first focused on microbiota analysis in ALS patients. Our aim was to study the main human gut microbial groups and the overall microbial diversity in ALS and healthy subjects. Moreover we have examined the influence of a treatment with a specific bacteriotherapy composed of Lactobacillus strains (Lactobacillus fermentum, Lactobacillus delbrueckii, Lactobacillus plantarum, Lactobacillus salivarius) acting on the gastrointestinal barrier. We enrolled 50 ALS patients and 50 healthy controls, matched for sex, age, and origin. Fecal samples were used for total genomic DNA extraction. Enterobacteria, Bifidobacterium spp., Lactobacillus spp., Clostridium sensu stricto, Escherichia coli and yeast were quantified using quantitative polymerase chain reaction approach. Denaturing gradient gel electrophoresis analyses were performed to investigate total eubacteria and yeasts populations. Patients were randomized to double-blind treatment either with microorganisms or placebo for 6 months and monitored for clinical progressi...Continue Reading
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