Gut microbiota and Parkinson’s: Sodium butyrate’s protective role

Published on January 25, 2023

Like a superhero protecting a city, sodium butyrate comes to the rescue in Parkinson’s disease by improving gut function and motor deficits. The complex relationship between sodium butyrate and gut microbiota-gut-brain communication is still being explored, but early research suggests that sodium butyrate regulates the composition of gut microbiota, promotes the production of beneficial short chain fatty acids (SCFAs), and restores GLP-1 levels in the colon, serum, and substantia nigra. This regulation of gut microbiota dysbiosis could be the key to relieving gut dysfunction and motor deficits in individuals with Parkinson’s disease. But don’t just take my word for it – dive into the fascinating research behind sodium butyrate’s potential as a therapeutic intervention for PD!

BackgroundA growing body of evidence showed that gut microbiota dysbiosis might be associated with the pathogenesis of Parkinson’s disease (PD). Microbiota-targeted interventions could play a protective role in PD by regulating the gut microbiota-gut-brain axis. Sodium butyrate (NaB) could improve gut microbiota dysbiosis in PD and other neuropsychiatric disorders. However, the potential mechanism associated with the complex interaction between NaB and gut microbiota-gut-brain communication in PD needs further investigation.MethodsC57BL/6 mice were subjected to a rotenone-induced PD model and were treated intragastrically with NaB for 4 weeks. The gut function and motor function were evaluated. The α-synuclein expression in colon and substantia nigra were detected by western blotting. Tyrosine hydroxylase (TH)-positive neurons in substantia nigra were measured by immunofluorescence. Moreover, gut microbiota composition was analyzed by 16S rRNA sequencing. Fecal short chain fatty acids (SCFAs) levels were determined by liquid chromatography tandem mass spectrometry (LC–MS). The levels of glucagon like peptide-1 (GLP-1) in tissues and serum were evaluated using enzyme-linked immunosorbent assay (ELISA).ResultsNaB ameliorated gut dysfunction and motor deficits in rotenone-induced mice. Meanwhile, NaB protected against rotenone-induced α-synuclein expression in colon and substantia nigra, and prevented the loss of TH-positive neurons. In addition, NaB could remodel gut microbiota composition, and regulate gut SCFAs metabolism, and restore GLP-1 levels in colon, serum, and substantia nigra in PD mice.ConclusionNaB could ameliorate gut dysfunction and motor deficits in rotenone-induced PD mice, and the mechanism might be associated with the regulation of gut microbiota dysbiosis.

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