Investigating the causal impact of gut microbiota on trigeminal neuralgia: a bidirectional Mendelian randomization study
BackgroundThe etiology and pathogenesis of trigeminal neuralgia remain unclear. This study examines the connection between gut microbiota and trigeminal neuralgia using Mendelian randomization analysis to provide insights into the disorder’s origin and propose potential therapies based on our findin...
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Frontiers Media S.A.
2025-02-01
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| Series: | Frontiers in Microbiology |
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| author | Chuan Zeng Chaolong Zhang Yuxuan Jia Huaiyu Zhou Chunming He Haimin Song |
| author_facet | Chuan Zeng Chaolong Zhang Yuxuan Jia Huaiyu Zhou Chunming He Haimin Song |
| author_sort | Chuan Zeng |
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| description | BackgroundThe etiology and pathogenesis of trigeminal neuralgia remain unclear. This study examines the connection between gut microbiota and trigeminal neuralgia using Mendelian randomization analysis to provide insights into the disorder’s origin and propose potential therapies based on our findings.MethodsWe used data from the MiBioGen consortium (13,266 participants) for gut microbiota and the IEU OpenGWAS project (800 cases, 195,047 controls) for trigeminal neuralgia. We checked for heterogeneity and horizontal pleiotropy and used the inverse variance weighting method as our main approach to study the causal link between gut bacteria and trigeminal neuralgia, MR-Egger, simple mode, weighted median, and weighted mode as supplementary methods, with a sensitivity test using leave-one-out analysis. If a bacteria-trigeminal neuralgia link was found, we conducted a reverse analysis for confirmation.ResultsAccording to the final results, these groups include Butyricimonas (Genus, id = 945, p-value = 0.007, OR = 1.742, 95% CI: 1.165–2.604), unknowngenus (Genus, id = 1000005479, p-value = 0.005, OR = 1.774, 95% CI: 1.187–2.651) and Bacteroidales (Family, p-value = 0.005, OR = 1.774, 95% CI: 1.187–2.651) were causally associated with trigeminal neuralgia. No significant results according to reverse Mendelian randomization analysis.ConclusionIn our study, we identified specific gut bacteria linked to trigeminal neuralgia. To comprehensively understand their impact and mechanisms, additional randomized trials are necessary. |
| format | Article |
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| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Microbiology |
| spelling | doaj-art-a2e24b58cbaf4365aafd1f31fbffbc0d2025-08-20T02:04:21ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2025-02-011610.3389/fmicb.2025.14209781420978Investigating the causal impact of gut microbiota on trigeminal neuralgia: a bidirectional Mendelian randomization studyChuan Zeng0Chaolong Zhang1Yuxuan Jia2Huaiyu Zhou3Chunming He4Haimin Song5The First Clinical Medical College of Gannan Medical University, Ganzhou, Jiangxi, ChinaThe First Clinical Medical College of Gannan Medical University, Ganzhou, Jiangxi, ChinaThe First Clinical Medical College of Gannan Medical University, Ganzhou, Jiangxi, ChinaThe First Clinical Medical College of Gannan Medical University, Ganzhou, Jiangxi, ChinaDepartment of Neurosurgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, ChinaDepartment of Neurosurgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, ChinaBackgroundThe etiology and pathogenesis of trigeminal neuralgia remain unclear. This study examines the connection between gut microbiota and trigeminal neuralgia using Mendelian randomization analysis to provide insights into the disorder’s origin and propose potential therapies based on our findings.MethodsWe used data from the MiBioGen consortium (13,266 participants) for gut microbiota and the IEU OpenGWAS project (800 cases, 195,047 controls) for trigeminal neuralgia. We checked for heterogeneity and horizontal pleiotropy and used the inverse variance weighting method as our main approach to study the causal link between gut bacteria and trigeminal neuralgia, MR-Egger, simple mode, weighted median, and weighted mode as supplementary methods, with a sensitivity test using leave-one-out analysis. If a bacteria-trigeminal neuralgia link was found, we conducted a reverse analysis for confirmation.ResultsAccording to the final results, these groups include Butyricimonas (Genus, id = 945, p-value = 0.007, OR = 1.742, 95% CI: 1.165–2.604), unknowngenus (Genus, id = 1000005479, p-value = 0.005, OR = 1.774, 95% CI: 1.187–2.651) and Bacteroidales (Family, p-value = 0.005, OR = 1.774, 95% CI: 1.187–2.651) were causally associated with trigeminal neuralgia. No significant results according to reverse Mendelian randomization analysis.ConclusionIn our study, we identified specific gut bacteria linked to trigeminal neuralgia. To comprehensively understand their impact and mechanisms, additional randomized trials are necessary.https://www.frontiersin.org/articles/10.3389/fmicb.2025.1420978/fulltrigeminal neuralgiagut microbiotaMendelian randomizationcausalitygut-brain axis |
| spellingShingle | Chuan Zeng Chaolong Zhang Yuxuan Jia Huaiyu Zhou Chunming He Haimin Song Investigating the causal impact of gut microbiota on trigeminal neuralgia: a bidirectional Mendelian randomization study Frontiers in Microbiology trigeminal neuralgia gut microbiota Mendelian randomization causality gut-brain axis |
| title | Investigating the causal impact of gut microbiota on trigeminal neuralgia: a bidirectional Mendelian randomization study |
| title_full | Investigating the causal impact of gut microbiota on trigeminal neuralgia: a bidirectional Mendelian randomization study |
| title_fullStr | Investigating the causal impact of gut microbiota on trigeminal neuralgia: a bidirectional Mendelian randomization study |
| title_full_unstemmed | Investigating the causal impact of gut microbiota on trigeminal neuralgia: a bidirectional Mendelian randomization study |
| title_short | Investigating the causal impact of gut microbiota on trigeminal neuralgia: a bidirectional Mendelian randomization study |
| title_sort | investigating the causal impact of gut microbiota on trigeminal neuralgia a bidirectional mendelian randomization study |
| topic | trigeminal neuralgia gut microbiota Mendelian randomization causality gut-brain axis |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2025.1420978/full |
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