Detection of changes in synaptic density in amyotrophic lateral sclerosis patients using 18 F‐SynVesT ‐1 positron emission tomography

Autor: Yongxiang Tang, Pan Liu, Wanzhen Li, Zhen Liu, Ming Zhou, Jian Li, Yanchun Yuan, Liangjuan Fang, Mengli Wang, Lu Shen, Yiyun Huang, Beisha Tang, Junling Wang, Shuo Hu
Rok vydání: 2022
Předmět:
Zdroj: European Journal of Neurology. 29:2934-2943
ISSN: 1468-1331
1351-5101
DOI: 10.1111/ene.15451
Popis: Synaptic loss is well established as the major correlate of characteristic and consistent pathology in amyotrophic lateral sclerosis (ALS). We aimed to assess the possible discriminant diagnostic value ofsup18/supF-SynVesT-1 positron emission tomography (PET) as a marker of ALS pathology and investigate whether specific synaptic density signatures are present in ALS with different subtypes.Twenty-one patients with ALS and 25 healthy controls (HCs) were recruited. All participants underwentsup18/supF-SynVesT-1-PET. Synaptic density between ALS and HCs and between different ALS subgroups were compared. Correlation between synaptic density and clinical features in ALS was also analyzed.Low uptake distribution was found in the group comprising 21 ALS patients as compared with HCs in the right temporal lobe and the bilateral inferior frontal gyrus, anterior cingulate, and hippocampus-insula region. We also found low uptake in the bilateral superior temporal gyrus, hippocampus-insula, anterior cingulate, and left inferior frontal gyrus in ALS patients with cognitive impairment compared to HCs. Furthermore, compared to spinal onset ALS, bulbar onset ALS showed low uptake in the bilateral cingulate gyrus and high uptake in the bilateral superior temporal gyrus and left occipital lobe. No significant result was found in correlation analysis.This approach may provide a direct measure of synaptic density, and it therefore might represent a potentially useful biomarker for ALS diagnosis, as well as for estimating the cognitive decline and site of onset in ALS.sup18/supF-SynVesT-1-PET is presently not justified as a routine investigation to detect evidence of brain dysfunction leading to progression in ALS.
Databáze: OpenAIRE
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