Sensitivity of Detecting Alpha-Synuclein Accumulation in the Gastrointestinal Tract and Tissue Volume Examined

OBJECTIVE: This study aimed to evaluate whether a larger tissue volume increases the sensitivity of detecting alpha-synuclein (AS) pathology in the gastrointestinal (GI) tract. METHODS: Nine patients with Parkinson’s disease (PD) or idiopathic rapid eye movement sleep disorder (iRBD) who underwent G...

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Detalles Bibliográficos
Autores principales: Shin, Chaewon, Kim, Seong-Ik, Park, Sung-Hye, Shin, Jung Hwan, Lee, Chan Young, Yang, Han-Kwang, Lee, Hyuk-Joon, Kong, Seong-Ho, Suh, Yun-Suhk, Kim, Han-Joon, Jeon, Beomseok
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Movement Disorder Society 2022
Materias:
Brief Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9536904/
https://www.ncbi.nlm.nih.gov/pubmed/35880377
http://dx.doi.org/10.14802/jmd.22042
Descripción
Sumario:OBJECTIVE: This study aimed to evaluate whether a larger tissue volume increases the sensitivity of detecting alpha-synuclein (AS) pathology in the gastrointestinal (GI) tract. METHODS: Nine patients with Parkinson’s disease (PD) or idiopathic rapid eye movement sleep disorder (iRBD) who underwent GI operation and had full-depth intestinal blocks were included. All patients were selected from our previous study population. A total of 10 slides (5 serial sections from the proximal and distal blocks) per patient were analyzed. RESULTS: In previous studies, pathologic evaluation revealed phosphorylated AS (+) in 5/9 patients (55.6%) and in 1/5 controls (20.0%); in this extensive examination, this increased to 8/9 patients (88.9%) but remained the same in controls (20.0%). The severity and distribution of positive findings were similar between patients with iRBD and PD. CONCLUSION: Examining a large tissue volume increased the sensitivity of detecting AS accumulation in the GI tract.

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