[Application of skin phosphorylated synuclein in the diagnosis of dementia with Lewy body].

Patients with dementia with Lewy body(DLB), Alzheimer disease (AD), frontotemporal dementia (FTP), progressive supranuclear palsy (PSP) and healthy controls in the Department of Neurology, the First Affiliated Hospital of Zhengzhou University from August 2019 to March 2021 were recruited, with 3 in each group. Phosphorylated α-synuclein from the skin of DLB patients was detected by skin micro-biopsy and compared with patients with AD, FTP, PSP and health controls. Phosphorylated α-synuclein was found in the skin nerves of the DLB patients, while no α-synuclein were detected in the skin samples of others. Skin phosphorylated α-synuclein may potentially become a diagnostic biomarker of DLB, however further studies are warranted to assess its sensitivity and specificity.本研究选择2019年8月至2021年3月就诊于郑州大学第一附属医院，临床诊断为路易体痴呆、进行性核上性麻痹、阿尔茨海默病、额颞叶痴呆的患者及健康志愿者各3例。通过皮肤神经微活检，检测路易体痴呆患者皮肤磷酸化α-突触核蛋白的沉积，与其他类型痴呆患者和健康志愿者进行比较。路易体痴呆患者皮肤神经可见线状磷酸化α-突触核蛋白沉积，其他痴呆患者和正常健康人皮肤神经未见沉积。皮肤磷酸化α-突触核蛋白有可能成为路易体痴呆鉴别诊断的生物标志物，仍需大样本研究。.