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Implicaciones cognitivas de las alteraciones de la materia blanca en individuos chinos con sobrepeso: un estudio de
Shaofan Jiang1, Yingzhe Cheng2,3,4,5,6, Rifeng Jiang1
1Department of Radiology, Fujian Medical University Union Hospital, Fuzhou, China.
Brain and behavior
|August 23, 2025
Resumen
Los individuos con sobrepeso muestran cambios en la microestructura de la materia blanca (CM) relacionados con la función cognitiva y los biomarcadores plasmáticos. Estas anomalías en el estado de sobrepeso pueden afectar el rendimiento cognitivo.
Área de la Ciencia:
- Imágenes neurológicas
- Neurología
- Salud metabólica
Sus antecedentes:
- Existen investigaciones limitadas sobre las alteraciones de la microestructura de la materia blanca en individuos con sobrepeso.
- La comprensión de estos cambios es crucial para la evaluación de la salud cognitiva en las poblaciones OW.
Objetivo del estudio:
- Investigar las diferencias en la microestructura de la masa corporal entre los participantes de peso estándar (SW) y OW.
- Explorar la relación entre la integridad de WM, los dominios cognitivos y los biomarcadores plasmáticos en OW.
Principales métodos:
- Utilizó imágenes de dispersión y densidad de orientación de neuritas (NODDI) y imágenes de tensor de difusión (DTI) para evaluar la integridad de WM.
- Valores comparados de la región de interés (ROI) de las métricas NODDI y DTI entre los grupos SW y OW.
- Métricas correlacionadas de la microestructura WM con evaluaciones cognitivas y biomarcadores plasmáticos.
Principales resultados:
- Se observaron diferencias significativas en la anisotropía fraccionada (FA) y el índice de dispersión de orientación (ODI) en regiones extensas de WM (p < 0,05).
- Los parámetros NODDI en el fascículo no cinado (UF) se correlacionaron significativamente con los dominios cognitivos.
- Otras anomalías de la microestructura de WM en OW se asociaron con las funciones cognitivas y los biomarcadores plasmáticos.
Conclusiones:
- Las anomalías de la microestructura WM son características del estado OW.
- Estas alteraciones están demostradamente asociadas con las funciones cognitivas y los biomarcadores plasmáticos relacionados.
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