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母源单亲异二体致Prader-Willi综合征患儿1例

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摘要 Prader-Willi综合征(PWS,OMIM#176270)由Prader和Willi于1956年报道,是最早发现的与基因印记相关的疾病[1]。PWS是15号染色体15q11.2-q13PWS/AS区域父源基因表达缺失引起的遗传性疾病,其临床表现复杂多样,新生儿期肌张力低,喂养困难,之后出现饮食过度,肥胖,智力低下,身材矮小等[2]。现在已经识别出的PWS的3种基因类型,包括父源染色体15q11-q13区域的中间缺失(约占70%)、母源15号染色体单亲二体(Uniparental disomy,UPD,约占20%~30%)以及印记中心缺陷(约占1%~3%)[3]。
出处 《中国儿童保健杂志》 CAS 2020年第9期1060-1062,共3页 Chinese Journal of Child Health Care
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  • 2Miller DT, Adam MP, Aradhya S, et al. Consensus statement: chromosomal microarray is a first-tier clinical diagnostic test for individuals with developmental disabilities or congenital anomalies [J]. Am J Hum Genet, 2010, 86(5): 749-764. DOI: 10. 1016/j. ajhg. 2010.04. 006.
  • 3Dawson AJ, Chernos J, McGowan-]ordan J, et al. CCMG guidelines : prenatal and postnatal diagnostic testing for uniparental disomy[J]. Clin Genet, 2011, 79(2): 118-124. DOI: 10. 1111/j. 1399-0004. 2010. 01547. x.
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  • 7Baldwin EL, Lee JY, Blake DM, et al. Enhanced detection of clinically relevant genomic imbalances using a targeted plus whole genome oligonucleotide microarray [ J]. Genet Med, 2008, 10 (6) : 415-429. DOI: 10. 1097/GIM. 0b013e318177015c.
  • 8Thuresson AC, Bondeson ML, Edeby C, et al. Whole-genome array-CGH for detection of submicroscopic chromosomal imbalances in children with mental retardation [ J]. Cytogenet Genome Res, 2007, 118(1) : 1-7. DOI: 10. 1159/000106434.
  • 9Lu XY, Phung MT, Shaw CA, et al. Genomic imbalances in neonates with birth defects: high detection rates by using chromosomal microarray analysis[J]. Pediatrics, 2008, 122(6) : 1310-1318. DOI: 10. 1542/peds. 2008-0297.
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