Transcutaneous Submandibular Gland Biopsy: Feasibility of Repeat Biopsy as a Progression Marker for Parkinson&Apos;s Disease
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- Mayo Clinic
- 入组人数
- 7
- 试验地点
- 2
- 主要终点
- Presence of alpha-synuclein in the submandibular gland
研究概览
简要总结
The purpose of this study is to perform biopsies of one of the glands that make saliva. The biopsied tissue will then be analyzed to see if it has changes that occur in Parkinson's disease. This study will determine whether it is possible to do a second biopsy a few years after a previous biopsy and determine whether there are changes in the biopsy that would allow for analysis of disease progression.
详细描述
Tissue biopsies documenting the presence and density of Lewy type synucleinopathy (LTS) in living patients with probable Parkinsons disease (PD) would be extremely valuable as a diagnostic test, as a marker of molecular therapeutic target engagement and as a progression marker. Based on recent data from our group with both early and advanced PD patients, we propose to perform a second transcutaneous submandibular gland (SMG) needle core biopsy in 12 patients who have previously been biopsied and had LTS present in their SMG tissue.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
研究组 & 干预措施
Submandibular gland biopsy
No treatment is being used in this study. Study participants will have bilateral submandibular gland biopsies.
干预措施: Submandibular gland biopsy (Procedure)
结局指标
主要结局
Presence of alpha-synuclein in the submandibular gland
时间窗: baseline
The biopsied submandibular gland tissue will be stained with an antibody for alpha-synuclein. The pathologist will review the slides and determine the number that show positive staining for neuronal elements. He will compare the number of positive slides between the right and left submandibular glands to see if they are similar.
次要结局
未报告次要终点
研究者
Charles Adler
Professor of Neurology
Mayo Clinic