Cited by 43Gut microbiota and healthAmyotrophic Lateral Sclerosis ResearchGastrointestinal motility and disorders

Gut microbiome and amyotrophic lateral sclerosis: a systematic review of current evidence

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Sun, Jiangwei, Huang, Tingting, Debelius, Justine W., Fang, Fang·2021·Journal of Internal Medicine

Abstract

Amyotrophic lateral sclerosis (ALS), characterized by a loss of motor neurons in the brain and spinal cord, is a relatively rare but currently incurable neurodegenerative disease. The global incidence of ALS is estimated as 1.75 per 100,000 person‐years and the global prevalence is estimated as 4.1–8.4 per 100,000 individuals. Contributions from outside the central nervous system to the etiology of ALS have been increasingly recognized. Gut microbiome is one of the most quickly growing fields of research for ALS. In this article, we performed a comprehensive review of the results from existing animal and human studies, to provide an up‐to‐date summary of the current research on gut microbiome and ALS. In brief, we found relatively consistent results from animal studies, suggesting an altered gut microbiome composition in experimental ALS. Publication bias might however be a concern. Findings from human studies are largely inconclusive. A few animal and human studies demonstrated the usefulness of intervention with microbial‐derived metabolites in modulating the disease progression of ALS. We discussed potential methodological concerns in these studies, including study design, statistical power, handling process of biospecimens and sequencing data, as well as statistical methods and interpretation of results. Finally, we made a few proposals for continued microbiome research in ALS, with the aim to provide valid, reproducible, and translatable findings.

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  1. Mariosa D, Kamel F, Bellocco R, Ye W, Fang F. Association between diabetes and amyotrophic lateral sclerosis in Swe- den. Eur J Neurol. 2015;22(11):1436-42.
  2. Chen X, Yazdani S, Piehl F, Magnusson PKE, Fang F. Poly- genic link between blood lipids and amyotrophic lateral scle- rosis. Neurobiol Aging. 2018;67:202.e1-202.e6.
  3. Dodiya HB, Kuntz T, Shaik SM, Baufeld C, Leibowitz J, Zhang X, et al. Sex-specific effects of microbiome perturba- tions on cerebral Abeta amyloidosis and microglia pheno- types. J Exp Med. 2019;216(7):1542-60.

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Authors
Sun, J., Huang, T., Debelius, J. W., & Fang, F.
Affiliations
Karolinska Institutet (SE)
Corresponding author
Fang, Fang
Venue
Journal of Internal Medicine
Publisher
Wiley
Published
2021-07-08
Volume
290
Issue
4
Pages
758-788
ISSN
  • 0954-6820 (ISSN-L)
  • 1365-2796
OpenAlex
W3165351372
Cited by
43
References
136
Citations by year
2026: 12 · 2025: 4 · 2024: 11 · 2023: 9 · 2022: 6 · 2021: 1
FWCI
0.71
Type
journal article
Language
en
Open access
Locations
  • Journal of Internal Medicine (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • European Research Council (802091)
  • China Scholarship Council (201700260278)
  • Karolinska Institutet
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
amyotrophic lateral sclerosis, gut microbiota, neurodegenerative diseases, microbial metabolites, animal models of ALS, human subjects research, publication bias, study design limitations
MeSH terms
Gastrointestinal Microbiome, Amyotrophic Lateral Sclerosis, Animals, Humans, Disease Progression

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