PRENATAL DIAGNOSIS TRIALS--FETAL CELLS/MATERNAL BLOOD

产前诊断试验——胎儿细胞/母血

• 批准号: 6045787
• 负责人: DIANA W. BIANCHI
• 金额: $ 21.02万
• 依托单位: TUFTS MEDICAL CENTER
• 依托单位国家: 美国
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-15 至 1999-10-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6045787
• 关键词: chromosome aberrations; clinical trials; diagnosis design /evaluation; diagnosis quality /standard; female; flow cytometry; fluorescent dye /probe; genetic disorder diagnosis; human fetus tissue; human pregnant subject; in situ hybridization; noninvasive diagnosis; nucleic acid probes; pregnancy circulation; prenatal diagnosis; psychological tests

This project represents phase II of a project whose main objective is to develop a non-invasive, safe, relatively inexpensive and accurate technique for the prenatal diagnosis of genetic disorders that can be performed during the first trimester. Phase II will test, expand and refine the methodology developed in phase I. The study will include a systematic evaluation of the variables involved in separating and enriching fetal cells from maternal blood through flow cytometry or other methods, including magnetic-activated cell sorting (MACS), followed by in situ hybridization with chromosome-specific DNA probes. The results of these peripheral blood studies will be compared to those that will be obtained from amniocentesis or chorionic villus sampling (CVS) on the same women. Another objective of the project is to determine whether or not there are any non-biological effects on the women undergoing prenatal diagnostic testing. Even if the biologic risks associated with reproductive genetic technologies are reduced, the possibility exists that other potential risks (or benefits) are associated with the procedures. Some of these factors may be: expanded or diminished maternal anxiety, increased adjustment or maladaptation to the pregnancy, increased feelings Of coercion to undertake prenatal testing when there are negligible biologic risks associated with the procedure, and increased or decreased comfort with reproductive decision-making.

本项目是一个项目的第二阶段，其主要目标是