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Jingchun Chen1, Faria Tavacoli1, Hayley Ho1

  • 1University of Nevada Las Vegas, Las Vegas, NV, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
PubMed
Resumen
Este resumen es generado por máquina.

Este estudio encontró que la exposición a la contaminación acústica aumenta el riesgo de enfermedad de Alzheimer (EA). Reducir el ruido, especialmente en el lugar de trabajo, puede disminuir el riesgo de EA y mejorar la longevidad.

Palabras clave:
contaminación acústicaenfermedad de Alzheimerriesgolongevidadexposición laboral

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Área de la Ciencia:

  • Epidemiología Ambiental
  • Neurogenética
  • Salud Pública

Sus antecedentes:

  • Los estudios epidemiológicos sugieren una relación entre la contaminación acústica y la enfermedad de Alzheimer (EA), pero la causalidad no está confirmada.
  • Esta investigación investiga la correlación genética y la asociación causal entre la exposición al ruido y el riesgo de EA.

Objetivo del estudio:

  • Evaluar la posible correlación genética entre la exposición al ruido y el riesgo de EA.
  • Determinar la asociación causal entre la contaminación acústica y la enfermedad de Alzheimer.

Principales métodos:

  • Se utilizaron datos del Estudio de Asociación del Genoma Completo (GWAS) para la contaminación acústica del UK Biobank para calcular puntuaciones poligénicas (PGS).
  • Se realizaron regresiones logísticas y metaanálisis en cohortes de descubrimiento y replicación, ajustando por covariables.
  • Se emplearon análisis de aleatorización mendeliana (MR) con el método de varianza inversa ponderada (IVW) para evaluar la causalidad.

Principales resultados:

  • Las puntuaciones poligénicas para los niveles promedio de ruido de 24 horas mostraron una asociación significativa con un mayor riesgo de EA (OR = 1.198, p = 3.65 × 10⁻⁵).
  • Los análisis de RM revelaron que la exposición frecuente genéticamente predicha a lugares de trabajo muy ruidosos se correlacionó con un mayor riesgo de EA (OR = 3.251) y una menor longevidad (OR = 0.635).
  • Las pruebas de sensibilidad confirmaron los efectos causales observados en los análisis de RM.

Conclusiones:

  • Este estudio proporciona una fuerte evidencia de una relación causal entre la contaminación acústica y el riesgo de enfermedad de Alzheimer.
  • Se recomienda reducir la exposición al ruido, particularmente en entornos laborales, como una estrategia de salud pública para mitigar el riesgo de EA y promover la longevidad.