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Video Experimental Relacionado

Updated: Sep 9, 2025

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Exposición al monóxido de carbono ambiental y deterioro cognitivo en una clínica de memoria

Jiyun Jung1, Hyunwoong Ko2, Hyeonjin Kim3

  • 1Department of Biostatistics, Dongguk University College of Medicine, Gyeongju, South Korea.

Journal of Alzheimer's disease : JAD
|September 1, 2025
PubMed
Resumen
Este resumen es generado por máquina.

La exposición a corto plazo a la contaminación atmosférica por monóxido de carbono (CO) está relacionada con una peor función cognitiva en los adultos mayores, especialmente en aquellos con enfermedad de Alzheimer (EA). Esto pone de relieve la necesidad de mejorar la calidad del aire para proteger la salud del cerebro.

Palabras clave:
La enfermedad de AlzheimerenvejecimientoMonóxido de carbonoDeterioro cognitivo leve

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Área de la Ciencia:

  • Salud del medio ambiente
  • La neurociencia
  • Salud pública

Sus antecedentes:

  • La contaminación atmosférica constituye un riesgo para la salud mundial.
  • Los efectos a corto plazo de la contaminación del aire en la función cognitiva en las enfermedades neurodegenerativas no se comprenden bien.

Objetivo del estudio:

  • Investigar la asociación entre la exposición a corto plazo al monóxido de carbono (CO) y los cambios cognitivos en adultos mayores con deterioro cognitivo leve (ICM) o enfermedad de Alzheimer (EA).

Principales métodos:

  • Se utilizaron datos de 717 pacientes con CMI o EA en Corea del Sur.
  • Exposición estimada al CO utilizando la ponderación inversa de la distancia basada en la proximidad residencial a las estaciones de monitoreo del aire (exposición de 1 día a 1 mes).
  • Se evaluó el rendimiento cognitivo utilizando el examen de estado mental mini (MMSE) y se analizaron los cambios con ecuaciones de estimación generalizadas.

Principales resultados:

  • Una mayor exposición promedio de 7 días a CO se asoció con puntuaciones más bajas de MMSE (RR 0,89).
  • El impacto negativo en el rendimiento cognitivo fue más pronunciado en el grupo de la enfermedad de Alzheimer (EA) (RR 0,85).
  • Los pacientes con EA eran mayores, menos educados y tenían puntuaciones MMSE más bajas en comparación con el grupo MCI.

Conclusiones:

  • La exposición a corto plazo al CO puede empeorar el rendimiento cognitivo en adultos mayores, particularmente en aquellos con EA.
  • Los hallazgos sugieren que los contaminantes del aire ambiente pueden afectar los procesos neurodegenerativos.
  • Se necesitan estrategias de salud pública, incluidas las regulaciones y los avisos sobre la calidad del aire, para proteger a las poblaciones vulnerables.