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La genética del trastorno bipolar
1Institute of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University, Cardiff, UK. craddockn@cardiff.ac.uk
Lancet (London, England)
|May 14, 2013
Resumen
Los estudios genéticos revelan patrones complejos de herencia para el trastorno bipolar, con variantes genéticas comunes que contribuyen al riesgo. Existe una superposición genética significativa entre el trastorno bipolar y la esquizofrenia, lo que sugiere factores etiológicos compartidos.
Área de la Ciencia:
- Genética psiquiátrica Genética psiquiátrica
- La neurociencia es la neurociencia.
- La genómica es la genómica.
Sus antecedentes:
- Los estudios familiares y de gemelos destacan el papel significativo de los factores genéticos en la susceptibilidad al trastorno bipolar.
- El trastorno bipolar exhibe una complejidad genética y fenotípica sustancial.
Objetivo del estudio:
- Para resumir los recientes hallazgos genéticos en el trastorno bipolar.
- Para explorar la superposición genética entre el trastorno bipolar y la esquizofrenia.
- Para informar las futuras direcciones de investigación y la gestión clínica.
Principales métodos:
- Estudios de asociación de todo el genoma (GWAS) que identifican polimorfismos comunes.
- Análisis de las variantes genéticas dentro de genes específicos (CACNA1C, ODZ4, NCAN).
- Evaluación del riesgo poligénico y la variación estructural genómica.
Principales resultados:
- Se encontraron asociaciones significativas robustas en todo el genoma para las variantes en CACNA1C, ODZ4 y NCAN.
- Hay pruebas sólidas de una contribución poligénica al riesgo de trastorno bipolar.
- Significativa superposición en la susceptibilidad genética entre el trastorno bipolar y la esquizofrenia.
Conclusiones:
- Los hallazgos genéticos proporcionan direcciones para futuras investigaciones etiológicas y patogenéticas.
- Puede ser necesaria una reevaluación de las clasificaciones de diagnóstico.
- Potencial para mejorar el manejo clínico del trastorno bipolar.
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