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Updated: Jan 8, 2026

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Perfiles de Envejecimiento Basados en Cognición, Afecto y Reserva Cerebral
bioRxiv : the preprint server for biology
|December 22, 2025
Resumen
El envejecimiento muestra un bienestar emocional mejorado a pesar del declive cognitivo. Este estudio identificó perfiles de envejecimiento distintos, revelando trayectorias cognitivas y de salud mental variadas en adultos mayores, cruciales para intervenciones específicas.
Área de la Ciencia:
- Gerontología
- Neurociencia
- Psicología
Sus antecedentes:
- La paradoja del envejecimiento señala un bienestar emocional mejorado con la edad, en contraste con el declive cognitivo.
- La depresión en la edad avanzada se asocia con un declive cognitivo acelerado, lo que presenta un panorama complejo del envejecimiento.
- Los modelos existentes de reserva cognitiva, afectiva y cerebral informan nuestra comprensión de las trayectorias de envejecimiento.
Objetivo del estudio:
- Investigar los patrones aparentemente contradictorios de la cognición y la salud mental en el envejecimiento.
- Desarrollar y validar enfoques algorítmicos para perfilar el envejecimiento basándose en datos del UK Biobank.
- Identificar perfiles de envejecimiento distintos y sus características de salud asociadas.
Principales métodos:
- Se utilizaron datos de 22,686 participantes del UK Biobank.
- Se desarrollaron tres enfoques algorítmicos alternativos para perfilar el envejecimiento.
- Se empleó un modelo de reserva cerebral impulsado por datos que incorpora la cognición, el neuroticismo y el volumen cerebral.
Principales resultados:
- El modelo de reserva cerebral arrojó los perfiles de envejecimiento más validados.
- Solo dos de los cuatro perfiles identificados exhibieron la paradoja del envejecimiento (emoción mejorada, cognición disminuida).
- Los perfiles variaron, incluyendo uno con bajo neuroticismo y resiliencia cognitiva, otro con volumen cerebral preservado y dos con peor salud, incluido el riesgo cardiovascular.
Conclusiones:
- Los hallazgos enriquecen la comprensión de la paradoja del envejecimiento al revelar perfiles de envejecimiento matizados.
- Un enfoque estratificado para el estudio del envejecimiento es valioso para identificar diversas trayectorias de salud.
- Los perfiles futuros de envejecimiento pueden guiar estrategias preventivas para mejorar la esperanza de vida y la esperanza de vida saludable.
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