Rare Diseases Symptoms Automatic Extraction

Immunologic assessment and KMT2D mutation detection in Kabuki syndrome.

[kabuki syndrome]

Kabuki or Niikawa-Kuroki syndrome (KS) is a rare disorder with multiple malformations and recurrent infections, especially otitis media. This study aimed to investigate the genetic defects in Kabuki syndrome and determine if immune status is related to recurrent otitis media. Fourteen patients from 12 unrelated families were enrolled in the 9-year study period (2005-2013). All had Kabuki faces, cleft palate, developmental delay, mental retardation, and the short fifth finger. Recurrent otitis media (12/14) and hearing impairment (8/14) were also more common features. Immunologic analysis revealed lower memory CD19+ cells (11/13), lower memory CD4+ cells (8/13), undetectable anti-HBs antibodies (7/13), and antibody deficiency (7/13), including lower IgA (4), IgG (2), and IgG2 (1). Naïve emigrant lymphocytes, lymphocyte proliferation function, complement activity, and superoxide production in polymorphonuclear cells were all normal. All the patients had KMT2D mutations and 10 novel mutations of R1252X, R1757X,Y1998C, P2550R fs2604X, Q4013X, G5379X, E5425K, R5432X, R5432W, and R5500W. Resembling the phenotype of common variable immunodeficiency, KS patients with antibody deficiency, decreased memory cells, and poor vaccine response increased susceptibility to recurrent otitis media. Large-scale prospective studies are warranted to determine if regular immunoglobulin supplementation decreases the frequency of otitis media and severity of hearing impairment.

Diseases presenting "developmental delay" symptom

  • 22q11.2 deletion syndrome
  • achondroplasia
  • alexander disease
  • alpha-thalassemia
  • aniridia
  • canavan disease
  • child syndrome
  • classical phenylketonuria
  • coats disease
  • cohen syndrome
  • congenital diaphragmatic hernia
  • congenital toxoplasmosis
  • cowden syndrome
  • gm1 gangliosidosis
  • harlequin ichthyosis
  • hirschsprung disease
  • holt-oram syndrome
  • homocystinuria without methylmalonic aciduria
  • kabuki syndrome
  • kallmann syndrome
  • krabbe disease
  • lamellar ichthyosis
  • monosomy 21
  • neonatal adrenoleukodystrophy
  • phenylketonuria
  • primary hyperoxaluria type 1
  • proteus syndrome
  • pyruvate dehydrogenase deficiency
  • sneddon syndrome
  • triple a syndrome
  • wolf-hirschhorn syndrome
  • zellweger syndrome

This symptom has already been validated