Identification of Potocki-Lupski syndrome in patients with developmental delay and growth failure

• 발행기관: 대한의학유전학회
• 저자명: Sujin Jun Yena Lee Arum Oh Gu-Hwan Kim Eulju Seo Beom Hee Lee Jin-Ho Choi Han-Wook Yoo
• 간행물 정보: 『대한의학유전학회지』제16권 제2호, 49~54쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2019.12.30

영문 초록

Purpose: Potocki-Lupski syndrome (PTLS), is a recently identified, rare genomic disorder. The patients are affected by infantile hypotonia, poor growth and developmental delay. Facial dysmorphism may not be obvious in some patients. PTLS is associated with microduplication at chromosome 17p11.2. In the current study, three Korean patients are reported with their clinical and genetic features. Materials and Methods: The clinical findings of each patient were reviewed. Karyotyping and multiplex ligation-dependent probe amplification (MLPA) analyses were done for genetic diagnoses. Results: All the patients did not have the characteristic dysmorphic features, such as broad forehead, triangular face, asymmetric smile and palpebral fissures. On the other hand, all three patients were affected by variable degree of developmental delay, poor oral intake, failure to thrive, and language development disorders. Chromosome 17p11.2 duplication was identified by conventional karyotyping analysis only in one patient, whereas the other confirmed by MLPA analyses. Conclusion: Delayed development was mostly commonly observed in our patients without distinct dysmorphic facial features. In this respect, genomic screening in patients with developmental delay would identify more cases with PTLS to understand their long-term clinical courses with the development of adequate psychological and rehabilitation education program.

목차

Introduction

Materials and Methods

Results

Discussion

Acknowledgements

References

키워드

Potocki-Lupski syndrome Chromosome duplication Developmental disabilities