Gut Microbiota and Hair Loss: A Study on Androgenetic Alopecia
Author Information
Author(s): Liu Jinyue, Luo Wenrong, Hu Zheyuan, Zhu Xiaohai, Zhu Lie
Primary Institution: Changzheng Hospital, The Second Affiliated Hospital of Naval Medical University, Shanghai, China
Hypothesis
Is there a causal relationship between gut microbiota and androgenetic alopecia?
Conclusion
The study found that certain gut bacteria can either reduce or increase the risk of androgenetic alopecia.
Supporting Evidence
- Lachnospiraceae UCG008 and Oxalobacter were found to reduce the risk of androgenetic alopecia.
- Eubacterium rectale group and Roseburia were found to increase the risk of androgenetic alopecia.
- The study used a 2-sample Mendelian randomization approach to analyze the causal relationship.
- Results were confirmed through sensitivity analyses and heterogeneity tests.
Takeaway
This study shows that the bacteria in your gut can affect hair loss, with some bacteria helping to prevent it and others making it worse.
Methodology
The study used Mendelian randomization analysis with data from genome-wide association studies to assess the relationship between gut microbiota and androgenetic alopecia.
Potential Biases
Potential bias due to the use of only European population data.
Limitations
The study only used data from the European population and the abundance of gut microbiota was limited.
Participant Demographics
Data from 18,340 individuals from 24 countries, primarily of European descent.
Statistical Information
P-Value
<.01
Confidence Interval
95%CI 0.175–0.775, 95%CI 0.896–0.969, 95%CI 1.025–1.186, 95%CI 1.048–1.336
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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