| 分子和细胞遗传学新技术在出生缺陷诊断及防治中的应用 |
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| 引用本文： | Marilyn M.LI. 分子和细胞遗传学新技术在出生缺陷诊断及防治中的应用[J]. 北京大学学报(医学版), 2005, 37(1): 14-19 |
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| 作者姓名： | Marilyn M.LI |
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| 作者单位： | Hayward Genetics |
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| 摘 要： | SincePinkelandGray[1] firstappliedFluorescenceinsituhybridization (FISH)techniquestocytogeneticdiagnosis ,FISHtechnology ,acombinationofmolecu larandconventionalcytogenetictechniques (molecularcytogenetics) ,hasbroughtmoderncytogeneticstoanewerawithsignif…
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| 关 键 词： | 原位杂交,荧光 畸形 细胞遗传学分析 产前诊断 植入前诊断 In situ hybridization,fluorescence Abnormalities Cytogenetic analysis Prenatal diagnosis Preimplantation diagnosis 分子 细胞遗传学 新技术 缺陷诊断 防治中的应用 prevention diagnosis birth defects technologies molecular research aspects continue microarray clinical genomic hybridization multicolor techniques preimplantation playing |
Advanced molecular and cytogenetic technologies in birth defect diagnosis and prevention |
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| Marilyn M.LI. Advanced molecular and cytogenetic technologies in birth defect diagnosis and prevention[J]. Journal of Peking University. Health sciences, 2005, 37(1): 14-19 |
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| Authors: | Marilyn M.LI |
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| Affiliation: | Hayward Genetics Center and Department of Pediatrics, Tulane University Health Science Center, New Orleans, LA 70112, USA |
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| Abstract: | SUMMARY Fluorescence in situ hybridization (FISH) has become an important diagnostic tool as an adjunct to classical cytogenetics. FISH utilizes DNA probes comprised of specific nucleic acid sequences tagged with fluorescent molecules to identify the number and location of specific DNA sequences in human cells. These probes can be used to determine various numerical and structural chromosomal aberrations, in many cases, gene dosage and/or structure alterations. Chromosomal abnormalities are responsible for a considerable number of birth defects, and more than 50% of spontaneous abortions. These numbers have been significantly higher since the advent of FISH technology that allows the detection of submicroscopic chromosome alterations. The clinic application of FISH technology in postnatal, prenatal, and preimplantation diagnoses has been playing an important role in the diagnosis and prevention of birth defects. As new technologies evolve, more and more new FISH techniques - such as subtelomeric FISH, multicolor FISH (M-FISH), comparative genomic hybridization (CGH), and microarray - are used in clinical diagnoses, the role of FISH technology in both research and clinical aspects of birth defects will surely continue to expand. |
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| Keywords: | In situ hybridization fluorescence Abnormalities Cytogenetic analysis Prenatal diagnosis Preimplantation diagnosis |
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