假性软骨发育不全一家系临床表现及基因分析

Chinese Journal of Applied Clinical Pediatrics(2020)

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Abstract
对云南省第一人民医院儿科诊治的1例 COMP基因突变致假性软骨发育不全家系临床表现及基因进行回顾分析。患儿,男,3岁3个月,身高增长缓慢1年。查体:身高:87.5 cm(<-3标准差,上部量55.0 cm,下部量32.5 cm,轻度O型腿。神经系统查体:双下肢肌力正常,肌张力低。基因检查发现 COMP基因11号外显子杂合基因变异:chr19:18897437 A>G [hg19],NM_000095.2,c.1159T>C,p.Cys387Arg,即翻译产物蛋白中第1159位半胱氨酸变为精氨酸。基因检测是确诊假性软骨发育不全的重要依据,可避免误治,以免影响患儿的终身高。
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Key words
Pseudoachondroplasia,Short stature,COMP gene,Gene diagnosis,Autosomal dominant inheri-tance
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