Neuropathology and Biochemistry Core

项目总结-神经病理学和生化学核心 神经病理学评估仍然是痴呆症临床和转化研究的重要组成部分， 路易体（DLB）和帕金森病痴呆（PDD），这些疾病已被分组在 美国国立卫生研究院资助的阿尔茨海默病和相关痴呆症（ADRD）的研究建议 路易体痴呆（Lewy Body Dementias，LBD）核心B：神经病理学的目的是 对所有LBD的大脑进行定量的死后神经病理学评估和数据收集， 分发给CWOW科学家。核心B将提供粉碎的冷冻人脑样本， 组织匀浆、纯化蛋白制剂（Aβ和α-Syn）或LBD病例的石蜡切片， 所有CWOW研究者以及其他研究机构的合格研究者， 由核心A执行委员会和马约诊所生物标本委员会批准。的 产生的数量性状包括皮质路易体的计数， 黑质神经元丢失，壳核多巴胺能缺乏，酪氨酸羟化酶免疫组织化学和 用硫磺素S计数皮质和皮质下区域的老年斑和神经纤维缠结 荧光显微镜核心B将对处理后的切片进行数字显微镜检查和图像分析， α-Syn、磷酸化tau和Aβ40、Aβ42的免疫组织化学，作为额外的其他定量 内表型，如磷酸-TDP-43。

PROJECT SUMMARY – NEUROPATHOLOGY AND BIOCHEMISTRY CORE Neuropathologic evaluation remains an important part of clinical and translational research on dementia with Lewy bodies (DLB) and Parkinsonian disease dementia (PDD), disorders that have been grouped in the research recommendations of NIH-sponsored Alzheimer Disease and Related Dementias (ADRD) recommendations as the Lewy body dementias (LBD). The purpose of the Core B: Neuropathology is to perform quantitative postmortem neuropathologic evaluations and data collection for all LBD brains that will be distributed to the CWOW scientists. The Core B will provide pulverized frozen human brain samples, brain homogenates, purified protein preparations (Aβ and α-Syn) or paraffin sections of LBD cases and matched controls to all CWOW investigators, as well as to qualified investigators at other research institutions as approved by the Executive Committee of Core A and the Mayo Clinic Biospecimen Committee. The quantitative traits generated include counts of cortical Lewy bodies, semiquantitative estimates of substantia nigra neuronal loss, dopaminergic deficiency in putamen with tyrosine hydroxylase immunohistochemistry and counts of senile plaques and neurofibrillary tangles in cortical and subcortical areas with thioflavin S fluorescent microscopy. Core B will perform digital microscopy and image analysis on sections processed for immunohistochemistry for α-Syn, phospho-tau and Aβ40, Aβ42, as additional other quantitative endophenotypes, such as phospho-TDP-43.