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Manifestaciones Clínicas

Courtney Brothers1, Julie K Wisch2, Benjamin L Handen3

  • 1University of Wisconsin-Madison, Madison, WI, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
PubMed
Resumen
Este resumen es generado por máquina.

Las afecciones cardiovasculares pueden acelerar la patología de la enfermedad de Alzheimer en personas con síndrome de Down (SD). El manejo de factores como la hiperlipidemia podría retrasar potencialmente la acumulación de beta-amiloide y la demencia asociada al síndrome de Down (DSD).

Palabras clave:
síndrome de Downenfermedad de Alzheimersalud cardiovascularbeta-amiloidedemencia

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Área de la Ciencia:

  • Neurología; Gerontología; Genética

Sus antecedentes:

  • Las personas con síndrome de Down (SD) tienen un alto riesgo de por vida (90%) de enfermedad de Alzheimer sintomática (EA).; Existe una variabilidad significativa en la edad de deposición de placas de beta-amiloide (Aβ) en personas con SD.; Identificar factores que influyen en la resistencia y la resiliencia a la patología de la EA en SD es crucial.

Objetivo del estudio:

  • Investigar la asociación entre la salud cardiovascular y la acumulación de Aβ en adultos con SD.; Explorar factores relacionados con la resistencia (menos Aβ de lo esperado para la edad) y la resiliencia (mejor cognición para el nivel de Aβ) en SD.

Principales métodos:

  • 262 adultos con SD se sometieron a RMN y exploraciones PET de amiloide.; Los modelos de regresión múltiple analizaron la relación entre la edad y la Aβ, y la Aβ y el rendimiento cognitivo.; La salud cardiovascular se evaluó utilizando una puntuación compuesta que incluía IMC, presión arterial y factores metabólicos.

Principales resultados:

  • Una puntuación compuesta cardiovascular más alta se asoció con una acumulación de Aβ mayor de lo esperado para la edad (r = .156, p = .016).; La hiperlipidemia específicamente aumentó la probabilidad de tener Aβ mayor de lo esperado en 1.8 veces (OR = 1.83, p = .047).; No se encontró correlación significativa entre el compuesto cardiovascular y la resiliencia cognitiva.

Conclusiones:

  • Las afecciones cardiovasculares parecen influir en la resistencia a la acumulación de Aβ en el síndrome de Down.; Estos hallazgos sugieren que la salud cardiovascular es un objetivo potencial para intervenciones destinadas a retrasar la demencia asociada al síndrome de Down (DSD).; El manejo de los factores de riesgo cardiovascular puede ser importante para la salud cerebral en personas con SD.