Growth pattern of Rahman syndrome

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Recently, in a cohort study with “overgrowth syndrome with intellectual disability,” five subjects were reported to have de novo heterozygous truncating variants in HIST1H1E, which encodes linker histone H 1.4. However, their growth pattern appeared complex that four out of five patients had a decreasing height percentile over time, and three of these patients began with above-average heights but exhibited reductions to average heights or below when they were older. Herein, we report a female patient with intellectual disability and distinctive facial features including a wide nasal bridge and prominent cheek bones. She did not exhibit skeletal overgrowth, but she had a short stature at 21 years of age. An exome analysis identified a de novo heterozygous 1-bp duplication in HIST1H1E, that is, c.433dup p.(Ala145Glyfs*51). The physical features of the proposita were essentially the same as those observed in patients with the aforementioned HIST1H1E-related overgrowth syndrome. Our review of the growth trajectories in seven patients showed that five of seven patients did not exhibit skeletal overgrowth. This “lack of overgrowth in overgrowth syndrome” is reminiscent of a subset of patients with a short stature who have Sotos syndrome, a prototypic overgrowth syndrome. Considering this complexity in growth, this newly identified condition should be referred to as Rahman syndrome.

元の言語English
ページ(範囲)712-714
ページ数3
ジャーナルAmerican Journal of Medical Genetics, Part A
176
発行部数3
DOI
出版物ステータスPublished - 2018 3 1

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

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