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Alteraciones en la morfogénesis cerebral y red morfológica cerebral basada en individuos en niños con beta-talasemia
Yaowen Li1, Zhuoshuo Li2, Shumin Xu1
1Department of Radiology, Shenzhen Children's Hospital, Shenzhen, China.
Neuroscience
|January 31, 2026
Resumen
La beta-talasemia mayor (TM) en niños causa cambios en la estructura cerebral, particularmente en las áreas motoras y temporales. La sobrecarga de hierro se relaciona con estos efectos neurológicos y déficits cognitivos, lo que subraya la necesidad de una atención integral.
Área de la Ciencia:
- Neurociencia
- Genética
- Pediatría
Sus antecedentes:
- La beta-talasemia mayor (TM) es un trastorno genético grave de la sangre que afecta a pacientes pediátricos.
- Los déficits cognitivos son comunes en la TM, pero los efectos neurológicos están poco estudiados.
Objetivo del estudio:
- Investigar la morfología de la materia gris cerebral y la topología de la red cerebral en niños con TM.
- Correlacionar los hallazgos neurológicos con el rendimiento cognitivo y los marcadores hematológicos.
Principales métodos:
- Se utilizó RM de alta resolución y FreeSurfer para el análisis de la morfología cortical.
- Se construyeron Redes Cerebrales Morfológicas (MBN) para evaluar la conectividad estructural.
- Se analizó la función cognitiva y los parámetros sanguíneos (hemoglobina, hierro) en 27 pacientes con TM y 40 controles.
Principales resultados:
- Identificadas interrupciones estructurales en las cortezas motoras y temporales de pacientes con TM.
- Detectadas anomalías topológicas en redes frontoparietales, lo que indica conectividad alterada.
- Encontradas correlaciones significativas entre la sobrecarga de hierro, los cambios estructurales cerebrales y la organización de la red.
Conclusiones:
- Los niños con TM presentan vulnerabilidad neurológica con alteraciones cerebrales estructurales.
- La desregulación del hierro es un mecanismo potencial que vincula la TM con la disfunción neural y los déficits cognitivos.
- Los perfiles neuroimagenológicos y hematológicos son cruciales para comprender el impacto de la TM en el desarrollo cerebral y guiar las intervenciones.
Palabras clave:
beta-talasemia mayoranálisis de sangreRM cerebraldeterioro cognitivored morfológica cerebralMás Videos Relacionados
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