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Updated: Sep 26, 2025
11:22
Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
29.8K
Exploring the Gut Microbiome in Myasthenia Gravis
Angel Yun-Kuan Thye1, Jodi Woan-Fei Law1, Loh Teng-Hern Tan1,2
1Novel Bacteria and Drug Discovery Research Group (NBDD), Microbiome and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya 47500, Malaysia.
Nutrients
|April 23, 2022
Summary
Alterations in gut bacteria are linked to myasthenia gravis (MG) pathogenesis. Restoring gut microbiome balance with probiotics or fecal microbiota transplant (FMT) may help manage MG and reduce inflammation.
Area of Science:
- Microbiome research
- Immunology
- Neurology
Background:
- The gut microbiota plays a crucial role in immune homeostasis.
- Dysbiosis, or an imbalance in gut bacteria, is implicated in autoimmune diseases.
- Myasthenia gravis (MG) is an autoimmune disorder affecting neuromuscular junctions.
Purpose of the Study:
- To explore the association between gut microbiota alterations and myasthenia gravis.
- To investigate the potential of gut modulation as a therapeutic strategy for MG.
Main Methods:
- 16S rRNA gene sequencing to profile gut microbiota composition.
- Analysis of fecal metabolites, including short-chain fatty acids (SCFAs).
- Correlation of microbial and metabolic markers with MG clinical symptoms and severity.
Main Results:
- MG patients exhibit altered gut microbiota composition, with reduced Clostridium abundance and lower microbial diversity.
- Fecal SCFA levels are decreased in MG subjects.
- Specific bacterial taxa and metabolites correlate with MG clinical presentation and severity.
Conclusions:
- Gut microbiota dysbiosis is associated with myasthenia gravis pathogenesis.
- Microbial and metabolic profiles may serve as diagnostic biomarkers for MG.
- Interventions like fecal microbiota transplant (FMT) and probiotics show potential for managing MG by restoring gut balance and reducing inflammation.
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