241 CASES OF CONGENITAL MENTAL RETARDATION:CYTOGENETIC STUDY[J]. Journal of Chongqing Medical University, 1987,(4):240-242. DOI: 10.13406/j.cnki.cyxb.1987.04.007.
241例先天性智力低下的细胞遗传学研究
摘要
本文报告241例先天性智力低下患者的外周血染色体分析
男143例(59.3%)
女98例(40.7%)。染色体异常者130例(53.9%)
其中先天愚型120例(49.8%)
Turner综合征4例(1.7%)
脆性X染色体综合征6例(2.5%)。对先天性智低的病因与预防进行了讨论。
Abstract
This report presents an analysis of the peripheral blood chromosomes in 241 cases of congenital mental retardation
consisting of 343 male cases (59.3%) and 98 female cases (40.7%). 130 cases (53.9%) were found to have chromosomal aberrations. 120 cases of Down’s Syndrome (Trisomy 21)
4cases of Turner’s Syndrome and 6 cases of Fragile X Syndrome.The etiology and prevention for congenital mental retardation are discussed