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Ciencia básica y patogénesis

Davis C Woodworth1, Hannah L Nguyen1, Ali Ezzati1

  • 1University of California, Irvine, Irvine, CA, USA.

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

Se evaluaron los criterios clínicos para la encefalopatía por TDP-43 relacionada con la edad y predominante en el lóbulo límbico (LATE) utilizando hallazgos de autopsia. La LATE probable y posible fueron raras, con tasas similares de cambios neuropatológicos de LATE (NC) entre los grupos.

Palabras clave:
Encefalopatía por TDP-43 relacionada con la edad y predominante en el lóbulo límbicoNeuropatologíaCriterios diagnósticosAutopsiaEnfermedad de AlzheimerDemencia

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Área de la Ciencia:

  • Neuropatología
  • Enfermedades neurodegenerativas
  • Investigación sobre el envejecimiento

Sus antecedentes:

  • Se establecieron criterios clínicos recientes para la encefalopatía por TDP-43 relacionada con la edad y predominante en el lóbulo límbico (LATE) para el diagnóstico en vida utilizando evaluaciones clínicas y biomarcadores.
  • Este estudio tuvo como objetivo evaluar la utilidad de estos criterios para identificar cambios neuropatológicos de LATE (NC) en la autopsia.

Objetivo del estudio:

  • Evaluar la efectividad de los criterios clínicos para diagnosticar LATE utilizando proxies neuropatológicos en la autopsia.
  • Determinar la prevalencia de LATE-NC en una cohorte grande utilizando criterios clínicos operacionalizados.

Principales métodos:

  • Se utilizaron datos del National Alzheimer's Coordinating Center (NACC), incluidas las evaluaciones de la última visita y la neuropatología de la autopsia.
  • Se operacionalizaron los criterios de LATE utilizando proxies derivados de la autopsia para biomarcadores (atrofia del hipocampo, beta-amiloide, tau) y características clínicas (síndrome amnésico progresivo).
  • Se analizaron datos de 2438 participantes, comparando las tasas de LATE-NC en diferentes clasificaciones de LATE.

Principales resultados:

  • El 33,4% de los participantes presentaron LATE-NC. El síndrome amnésico progresivo se identificó en el 45,7% de los casos.
  • Pocos participantes cumplieron los criterios de LATE probable (41,9% LATE-NC) o posible (50% LATE-NC).
  • Se observaron tasas más altas de LATE-NC en la LATE posible con enfermedad de Alzheimer (EA) en comparación con el síndrome amnésico progresivo no clasificado (p < 0,001).

Conclusiones:

  • Los criterios clínicos operacionalizados para LATE, utilizando proxies neuropatológicos, identificaron LATE probable y posible de forma infrecuente en la cohorte NACC.
  • Las tasas de LATE-NC fueron similares en todos los grupos de LATE definidos, lo que sugiere limitaciones potenciales en los criterios clínicos actuales para la validación post mortem.
  • Los hallazgos resaltan la necesidad de una mayor refinación de los criterios de diagnóstico de LATE, particularmente en poblaciones diversas, dadas las limitaciones del estudio en diversidad racial, étnica y socioeconómica.