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Updated: Jan 7, 2026

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Interacción de la ínsula e hipocampo en la disfunción de la memoria en la enfermedad de Alzheimer
Michelle M Coleman1,2, Marc W Haut1,2,3, Camila Vieira Ligo Teixeira1
1Rockefeller Neuroscience Institute, West Virginia University, Morgantown, WV, USA.
Journal of Alzheimer's disease reports
|December 31, 2025
Resumen
La ínsula
Área de la Ciencia:
- Neurociencia
- Neurología
- Investigación de la enfermedad de Alzheimer
Sus antecedentes:
- El papel de la ínsula en la memoria, particularmente en la enfermedad de Alzheimer (EA), no se comprende completamente.
- Investigaciones previas relacionan la ínsula con la emoción y la percepción, con conexiones emergentes con la función de la memoria.
Objetivo del estudio:
- Investigar la contribución directa o indirecta de la ínsula a la consolidación de la memoria en la enfermedad de Alzheimer.
- Aclarar el papel específico de la ínsula en la disfunción de la memoria en el contexto de las patologías neurodegenerativas.
Principales métodos:
- Se aumentó sistemáticamente la especificidad diagnóstica en pacientes con deterioro de la memoria.
- Se evaluó la relación entre la circunvolución insular y la consolidación de la memoria en individuos con placas de amiloide (Aβ+).
- Se examinó la interacción entre la atrofia insular y la atrofia del hipocampo.
Principales resultados:
- La circunvolución insular se correlacionó con la consolidación de la memoria en individuos Aβ+.
- Esta asociación solo fue significativa cuando también estaba presente la atrofia del hipocampo.
- Los hallazgos indican una interacción entre la degeneración insular y la del hipocampo en los déficits de memoria relacionados con la EA.
Conclusiones:
- La atrofia insular interactúa con la degeneración del hipocampo, contribuyendo a la disfunción de la memoria en la enfermedad de Alzheimer.
- Esta interacción parece ser específica de la patología de la EA y puede no aplicarse a otras afecciones neurodegenerativas.
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