Systematic Characterization of the Cellular Proteome From Human Leukocytes of Glaucoma Patients in Comparison With Patients With Parkinson's Disease
试验速览
- 阶段
- 不适用
- 状态
- 撤回
- 发起方
研究概览
简要总结
Glaucoma is a worldwide leading cause of blindness. The key feature of this ocular neuropathy is characterized by an excavating optic nerve head. Loss of retinal ganglion cells is the final end point in blinding diseases of the optic nerve such as glaucoma. It is known that neuronal cell death in glaucoma occurs by an apoptotic mechanism. In earlier studies the investigators could demonstrate that the process of apoptosis is reflected in circulating leukocytes by different parameters, like differential mRNA expression and an increased fragmentation of the DNA. Such alterations point out a relationship between cellular stress and apoptotic events.
Based on the results of mRNA-expression the investigators also expect alterations on the protein level.
This study is, therefore, designed to characterize the proteome related to the proteins involved in cell death related pathways.
Thus, the expression pattern of several proteins in leukocytes from patients with primary open angle glaucoma will be analyzed by techniques like Western-blot and tandem mass spectrometry. These samples will be compared with samples from healthy controls. In addition, they will also be compared with samples from patients with Parkinson's disease. Since glaucoma is a neurodegenerative disease, these patients will be included as positive controls in this study.
详细描述
Hypothesis:
Differences in the proteome concerning cell death pathways of glaucoma patients correspond to the differences in the mRNA expression of these patients.
Specific aims:
Characterization of the cellular proteome from human leukocytes of glaucoma patients compared to healthy controls and patients with Parkinson's disease.
Background:
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
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
- 是
入选标准
- •German native speakers
- •Age between 18-85 years
- •Primary open-angle glaucoma (POAG) with and without vasospasm
- •An inclusion criterion for one control group is Parkinson's disease.
排除标准
- •Any history of:
- •Ocular or systemic diseases other than glaucoma or Parkinson's disease
- •Drug or alcohol abuse
- •Any condition potentially interfering with the visual field results. Visual fields will be obtained from the chart.
- •Mental impairment interfering with the ability to cooperate and understand the purpose of this study; exception: those patients with Parkinson's disease. A prerequisite for including patients with Parkinson's disease in this study is the ability of these patients to cooperate and completely understand the purpose of this study.