MESA

台面

• 批准号: 7917737
• 负责人: WENDY POST
• 金额: $ 270.46万
• 依托单位: JOHNS HOPKINS UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-01-15 至 2015-08-14
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7917737
• 关键词: MESA

The Johns Hopkins University serves as one of six Field Centers for the Multi-Ethnic Study of Atherosclerosis (MESA), a study of the correlates, predictors and progression of subclinical cardiovascular disease (CVD) (disease detected non-invasively before it has produced clinical signs and symptoms) in a diverse population-based sample of men and women aged 45-84 who had no evidence of clinical CVD at baseline. Six thousand eight hundred and fourteen (6,814) participants were recruited from six Field Centers during 2000-2002 and examined for evidence of subclinical coronary atherosclerosis, using computed tomography, cardiac MRI, carotid ultrasound, flow-mediated brachial artery dilation, radial artery tomometry, ankle-brachial index measurement, and retinal photography and, in subsets, abdominal aortic CT, carotid MRI, cardiac MRI tagging for measures of regional myocardial function; established and putative laboratory risk markers; socioeconomic, psychological, behavioral, nutritional and environmental characteristics; and genetic factors. Selected components were repeated over three subsequent examinations through 2007. The cohort has been followed for clinical events since baseline to ascertain and characterize new clinical events and other changes in health status, including changes in medications. The four scientific objectives for the period 2008 through 2015 are (1) identify factors related to progression of subclinical to clinical CVD; (2) identify predictors of decline in ventricular function; (3) further understanding of the basis for racial/ethnic difference in CVD; and (4) provide a platform for in-depth ancillary studies of CVD and other areas. All surviving and willing members of the MESA cohort will be followed up during the time period and included in an fifth examination during 2010-2012. The study will support in-depth ancillary studies that are funded outside of the current contracts. These studies will be operationally integrated into the main study, and the data will be shared across both types of studies, per current MESA and NIH data-sharing policies. The study¿s data will be provided to interested investigators through a defined process that encourages maximum data utilization but that protects participant confidentially. The study will also serve as a training ground for junior investigators, who will work with senior investigators and be provided with access to the MESA data set and guidance on conducting research. The MESA-EYE component (refraction and fundus photography) was integrated into the second MESA visit in which 6235 people participated between September 2002 and December 2003. The aims of the ocular component were to document the presence and severity of retinal microvascular changes (as interpreted from digital retinal photos) indicative of macular degeneration and diabetic retinopathy, as well as to describe their interrelationships with cross-sectional and longitudinal measures of microvascular and macrovascular systemic disease as defined clinically, by imaging modality, or by analysis of biological laboratory measures. The visual acuity/objective refraction component was designed to allow us to estimate visual impairment by sex and ethnicity, determine the degree to which visual impairment could be reduced with better refractive correction, and correlate visual findings with retinal pathology. Analyses of various ocular phenotypes, including retinal microvascular disease in MESA Family¿s ancillary study.

约翰·霍普金斯大学是动脉粥样硬化多种族研究 (MESA) 的六个现场中心之一，该研究旨在研究亚临床心血管疾病 (CVD)（在临床产生之前通过非侵入性方式检测到的疾病）的相关性、预测因素和进展。招募了 6,814 名 45-84 岁的男性和女性样本，这些参与者在基线时没有临床 CVD 证据。 2000 年至 2002 年期间，来自六个现场中心的研究人员利用计算机断层扫描、心脏 MRI、颈动脉超声、血流介导的肱动脉扩张、桡动脉断层扫描、踝肱指数测量和视网膜摄影检查了亚临床冠状动脉粥样硬化的证据，并在子集、腹主动脉 CT、颈动脉 MRI、心脏 MRI 标记，用于测量区域心肌功能和假定的实验室风险；标记；社会经济、心理、行为、营养和环境特征；在 2007 年的后续三次检查中重复选定的成分。自基线以来一直跟踪该队列的临床事件，以确定和描述新的临床事件和其他健康变化。 2008 年至 2015 年期间的四个科学目标是：(1) 确定与亚临床向临床 CVD 进展相关的因素；(2) 确定心室功能下降的预测因素； (3) 进一步了解 CVD 中种族/民族差异的基础；(4) 为 CVD 和其他领域的深入辅助研究提供平台，所有幸存且愿意的 MESA 队列成员将在研究期间得到随访。该研究将在 2010 年至 2012 年期间进行第五次检查，以支持在当前合同之外资助的深入辅助研究。这些研究将在操作上纳入主要研究，并且数据将在双方之间共享。根据当前 MESA 和 NIH 数据共享政策的研究类型。数据将通过明确的流程提供给感兴趣的研究人员，该流程鼓励最大程度地利用数据，同时保护参与者的机密性。该研究还将作为初级研究人员的培训基地，他们将与高级研究人员合作，并有权访问 MESA。数据集和开展研究的指导。 MESA-EYE 部分（验光和眼底照相）被纳入第二次 MESA 就诊，2002 年 9 月至 2003 年 12 月期间有 6235 人参加。眼部部分的目的是记录视网膜微血管变化的存在和严重程度（如解释）来自数码视网膜照片）表明黄斑变性和糖尿病性视网膜病变，并描述它们与微血管和视网膜的横截面和纵向测量的相互关系临床上通过成像方式或生物实验室测量分析定义的大血管系统性疾病 视力/客观屈光成分旨在使我们能够按性别和种族估计视力障碍，确定视力障碍可以减少的程度。更好的屈光矫正，并将视觉结果与视网膜病理学分析联系起来，包括 MESA 家族中的视网膜微血管疾病。的辅助研究。