Publications by authors named "Ikuko Kageyama"

The ATP-binding cassette transporter subfamily C member 8 (ABCC8) regulates insulin secretion from β-cells. Loss- and gain-of-function variants of have been implicated in neonatal hyperinsulinemic hypoglycemia and young-onset diabetes, respectively. Although some patients with variants have been reported to exhibit both neonatal hypoglycemia and young-onset diabetes, the molecular and clinical characteristics of this atypical phenotype remain unknown.

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Biallelic IGFALS variants lead to acid‒labile subunit (ALS) deficiency characterized by growth hormone resistance with or without delayed puberty. Here, we report a prepubertal boy with a homozygous 2-amino acid deletion within the fourth N-glycosylation motif (c.1103_1108del, p.

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Background: Previous studies have shown that a small percentage of people in the general population have atypical gender identity and/or sexual orientation.

Aim: This study aimed to explore variations in gender identity and sexual orientation in university students and determine genetic factors associated with these variations.

Methods: Deviations from complete gender congruence and exclusive heterosexual orientation in 736 Japanese university students were quantitatively assessed with self-assessment questionnaires.

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Article Synopsis
  • Haploinsufficiency of the SHOX gene is a significant genetic cause of nonsyndromic short stature, with eight potential enhancer regions identified near its exons.
  • A study reported a deletion in a boy that was over 60kb downstream from these known enhancers, correlating with his moderate short stature and nonspecific skeletal changes; his father's height was normal but lower than expected.
  • The deletion overlaps with previously identified copy-number variations (CNVs) in other short stature patients, suggesting that this far-downstream area functions as a novel enhancer, contributing to varied short stature phenotypes and indicating genomic instability around the SHOX region.
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