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Ciencia básica y patogénesis

Jason Webster1, Ali Shojaie1, Yiqin Alicia Shen1

  • 1University of Washington, Seattle, WA, USA.

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

Se creó un atlas digital del protocolo de muestreo cerebral (BSP) utilizando neuroimagen para la investigación del Alzheimer. Este atlas 3D mejora las solicitudes de tejido y se integra con herramientas de neuroinformática existentes para una mejor colaboración.

Palabras clave:
protocolo de muestreo cerebral digitalatlas 3Dneuroimageninvestigación de la enfermedad de Alzheimerbiorepositorioneuroinformática

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Área de la Ciencia:

  • Neurociencia
  • Neuropatología
  • Bioinformática

Sus antecedentes:

  • La investigación en neurociencia mecanicista requiere tejido cerebral bien conservado de biorepositorios.
  • La validez de la investigación sobre la enfermedad de Alzheimer y demencias relacionadas (ADRD) depende de protocolos estandarizados de muestreo cerebral (BSP).
  • El Laboratorio BRaIN de la Universidad de Washington desarrolló un BSP extenso para la preparación, el muestreo, la caracterización y el almacenamiento de tejido cerebral.

Objetivo del estudio:

  • Desarrollar un atlas digital BSP utilizando un marco de neuroimagen.
  • Mejorar el proceso de solicitud de tejido cerebral y los flujos de trabajo de biorepositorios.
  • Generar visualizaciones científicas y vincularlas a datos de neuroimagen.

Principales métodos:

  • Se realizó neuropatología virtual utilizando el BSP del laboratorio BRaIN y plantillas cerebrales estándar.
  • Se utilizaron software como FreeSurfer, FSL y scripts personalizados para la extracción, segmentación y corte del cerebro.
  • Se llevó a cabo un muestreo virtual de tejido en una plataforma colaborativa, con datos exportados y procesados para crear el atlas digital 3D del BSP.

Principales resultados:

  • El Atlas Digital BSP proporciona etiquetas volumétricas para todas las muestras de tejido fijo.
  • Incorpora convenciones estándar de neuroinformática para la compatibilidad con software como FSL, MRICroGL y FreeSurfer.
  • El atlas ofrece una representación espacial explícita del BSP.

Conclusiones:

  • El atlas digital BSP facilita la localización, referencia y utilización eficientes de muestras cerebrales post mortem.
  • La integración con la neuroinformática mejora la colaboración interdisciplinaria, la visualización y la optimización de protocolos.
  • El trabajo futuro incluye el desarrollo de software de capacitación y una interfaz flexible de identificación de muestras.