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Encefalopatía relacionada con el desarrollo y la epilepsia: expandiendo el espectro clínico y descifrando el
Kelley Gao1, Lisa G Riley1,2,3, Jacques Raubenheimer4
1Molecular Neurobiology Research Laboratory, Kids Research and Kids Neuroscience Centre, The Children's Hospital at Westmead, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia.
Neurology
|August 28, 2025
Resumen
Las personas con variantes nullas de WWOX bialélicas se enfrentan a un mayor riesgo de convulsiones, problemas respiratorios e hipertensión. Considerando las ayudas de genotipo en el manejo de la encefalopatía epiléptica y del desarrollo de WWOX (WWOX-DEE).
Área de la Ciencia:
- La genética
- Neurología
- Enfermedades raras
Sus antecedentes:
- La encefalopatía epiléptica y del desarrollo de WWOX (WWOX-DEE) presenta una aparición temprana de epilepsia resistente a los fármacos y un retraso grave en el desarrollo.
- Los mecanismos genéticos subyacentes y las manifestaciones clínicas de WWOX-DEE siguen siendo poco conocidos, lo que complica el tratamiento del paciente.
- Este estudio tiene como objetivo dilucidar las correlaciones genotipo-fenotipo en WWOX-DEE para mejorar la atención clínica y el pronóstico.
Objetivo del estudio:
- Investigar la relación entre las variantes específicas del gen WWOX y los resultados clínicos en individuos con WWOX-DEE.
- Identificar las características fenotípicas distintas asociadas con las diferentes clasificaciones del genotipo WWOX (nulo/nulo, nulo/sin sentido, sin sentido/sin sentido).
- Proporcionar recomendaciones basadas en datos para el tratamiento clínico de WWOX-DEE.
Principales métodos:
- Reclutamiento global de 50 individuos con variantes bialélicas de WWOX genéticamente confirmadas a través de la Fundación WWOX.
- Recopilación de datos mediante cuestionarios de captura electrónica de datos de investigación (REDCap), recopilando información clínica, demográfica y genética.
- Clasificación del genotipo en categorías nulo/nulo, nulo/sin sentido y sin sentido/sin sentido, seguida de un análisis de correlación genotipo-fenotipo utilizando las pruebas chi-cuadrado y Fisher exact.
Principales resultados:
- El análisis de 50 individuos con variantes bialélicas de WWOX reveló 25 variantes nuevas.
- Las características clínicas más frecuentes fueron el retraso en el desarrollo (96%) y las convulsiones (90%).
- Los individuos con un genotipo nulo / nulo mostraron una incidencia significativamente mayor de hipertensión, convulsiones y complicaciones respiratorias en comparación con aquellos con genotipos nulo / equivocado o equivocado / equivocado.
Conclusiones:
- La encuesta más grande reportada por los padres sobre WWOX-DEE demuestra que las variantes nullas de WWOX bialélicas están asociadas con un mayor riesgo de convulsiones, complicaciones respiratorias e hipertonía.
- La información sobre el genotipo debe integrarse en el tratamiento clínico de las personas con WWOX-DEE para una atención óptima.
- La investigación futura debe centrarse en estudios de historia natural a largo plazo y en registros médicos detallados para el fenotipo completo de los pacientes.
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