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논문 기본 정보

자료유형
학술저널
저자정보
이인경 (충남대학교) 임한혁 (충남대학교) 김유미 (충남대학교)
저널정보
연세대학교 의과대학 Yonsei Medical Journal Yonsei Medical Journal 제61권 제11호
발행연도
2020.1
수록면
981 - 985 (5page)

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3-M syndrome is a rare autosomal recessive growth disorder characterized by severe growth retardation, low birth weight, characteristicfacial features, and skeletal anomalies, for which three causative genes (CUL7, OBSL1, and CCDC8) have been identified. We herein report two Korean siblings with 3-M syndrome caused by two novel OBSL1 mutations, and describe the effect of acombined treatment with growth hormone (GH) and a gonadotropin-releasing hormone (GnRH) agonist. A 7-year-old girl withshort stature (-3.37 standard deviation score, SDS) and breast budding presented with subtle dysmorphic features, includingmacrocephaly, frontal bossing, a triangular face, prominent philtrum, full lips, a short neck, and fifth-finger clinodactyly. GnRHstimulation test revealed a pubertal pattern and advanced bone age of 8 years and 10 months. Her older sister, aged 10 years and9 months, had experienced an early menarche, and had an advanced bone age (13.5 years) and predicted adult height of 142 cm(-4.04 SDS). Targeted exome sequencing identified that the siblings had two heteroallelic mutations in OBSL1. Both siblings underwenta combination therapy with GH and a GnRH agonist. A height gain was noted in both siblings even after short-termtreatment. To fully elucidate the effects of the combined therapy, a larger cohort should be analyzed following a longer treatmentperiod. However, such an analysis would be challenging due to the rarity of this disease.

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