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Evaluación de los efectos causales del microbioma intestinal en el trastorno bipolar
Qian Zhao1, Hongbao Cao2, Ancha Baranova2,3
1Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.
Bipolar disorders
|September 2, 2025
Resumen
Este estudio utilizó la aleatorización mendeliana para explorar el microbioma intestinal
Área de la Ciencia:
- La genética
- Microbiología
- La psiquiatría
Sus antecedentes:
- La disbiosis del microbioma intestinal está implicada en la patogénesis del trastorno bipolar (TB).
- El vínculo causal directo entre la microbiota intestinal y la BD sigue sin estar claro.
Objetivo del estudio:
- Investigar la posible relación causal entre la microbiota intestinal y el trastorno bipolar utilizando un enfoque genético.
Principales métodos:
- Se empleó el análisis de aleatorización mendeliana (TSMR) de dos muestras.
- Se utilizaron los resultados del resumen del estudio de asociación de todo el genoma (GWAS) de grandes cohortes (MibioGen, Dutch Microbiome Project y BD GWAS).
Principales resultados:
- Las variantes genéticas vincularon a 12 taxones intestinales a un riesgo reducido de BD, incluidos Bacteroidetes y Faecalibacterium.
- Las variantes genéticas vincularon a 11 taxones intestinales con un mayor riesgo de enfermedad de Alzheimer, incluidas las Betaproteobacterias.
Conclusiones:
- Se identificó una conexión genética entre el microbioma intestinal y la BD.
- Las bacterias intestinales específicas pueden influir causalmente en el riesgo de BD, ofreciendo objetivos terapéuticos potenciales.
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