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Salud Pública

Hao-Chen Chi1, Lan Tan2, Jin-Tai Yu3

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Resumen
Este resumen es generado por máquina.

La fragilidad se asocia con un mayor riesgo de síntomas neuropsiquiátricos como depresión, ansiedad y apatía en personas con deterioro cognitivo leve y enfermedad de Alzheimer. La atrofia cerebral y los factores inmunitarios pueden desempeñar un papel en estas conexiones.

Palabras clave:
fragilidaddeterioro cognitivo leveenfermedad de Alzheimersíntomas neuropsiquiátricosdepresiónansiedadapatíaatrofia cerebralfactores inmunitarios

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Área de la Ciencia:

  • Gerontología; Neurología; Psiquiatría

Sus antecedentes:

  • La fragilidad es un estado de vulnerabilidad asociado con resultados adversos para la salud.; El impacto de la fragilidad en la salud neuropsiquiátrica sigue sin explorarse en gran medida.

Objetivo del estudio:

  • Investigar la asociación entre la fragilidad y los síntomas neuropsiquiátricos (SNP) en individuos con deterioro cognitivo leve (DCL) y enfermedad de Alzheimer (EA).; Explorar factores mediadores potenciales en la relación entre la fragilidad y los SNP.

Principales métodos:

  • Se utilizaron datos de 2.155 participantes del Estudio de Neuroimagen de la Enfermedad de Alzheimer (ADNI).; Se evaluó la fragilidad utilizando el índice de fragilidad modificado-11 (mFI-11).; Se analizaron las relaciones entre la fragilidad y los SNP utilizando modelos de regresión logística y de riesgos proporcionales de Cox, incluidos análisis de mediación causal.

Principales resultados:

  • En participantes con DCL, la fragilidad se asoció con un mayor riesgo de apatía (transversalmente) y depresión y apatía (longitudinalmente).; En participantes con EA, la fragilidad se asoció con un mayor riesgo de depresión y ansiedad (transversalmente) y apatía (longitudinalmente).; En participantes con DCL, la influencia de la fragilidad en los SNP fue parcialmente mediada por el volumen del hipocampo, el volumen cerebral total y los monocitos.

Conclusiones:

  • La fragilidad se asocia con SNP clave, incluyendo depresión, ansiedad y apatía, en grupos de DCL, EA y progresión cognitiva.; La atrofia del hipocampo y del cerebro total, junto con la inmunidad periférica, pueden subyacer a las asociaciones observadas entre la fragilidad y los SNP.