title: [A case of Williams syndrome with p47-phox-deficient chronic granulomatous disease].
abstract: A 2-month-old boy with a characteristic elfin face was diagnosed as having Williams syndrome by means of specific fluorescence in situ hybridization (FISH) analysis for a chromosomal microdeletion located in 7q11.23. He was suspected to have immunodeficiency because of a persistent enlargement of axillary lymphnodes after immunization with Bacille Calmette-Guerin (BCG) vaccine since 7 month-old of age. The nitroblue tetrazolium test (NBT) and the chemiluminescence test revealed an absence of superoxide production. Western blotting and DNA sequence analysis confirmed the diagnosis of p47-phox-deficient autosomal recessive chronic granulomatous disease (CGD) (A47 degrees CGD). The predominant genetic defect in A47 degrees CGD was a GT deletion at the beginning of exon 2 in neutrophil cytosol factor 1 gene (NCF1) located in 7q11.23. It suggests that CGD in this patient resulted from the hemizygosity of recessive genetic mutation in NCF1 located at 7q11.23 associated with Williams syndrome. In such a disease with the chromosomal microdeletion like Williams syndrome, we should consider a combination with autosomal recessive diseases, the genes of which are located in the hemizygous region.
authors.affiliation: Division of Infectious Diseases, Immunology and Allergy, Saitama Children's Medical Center.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Kabuki
authors.forename: Toshinao
authors.initials: T
authors.lastname: Kawai
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Kin
authors.forename: Kohsuke
authors.initials: K
authors.lastname: Joh
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Ohashi
authors.forename: Tomoki
authors.initials: T
authors.lastname: Kosho
authors.forename: Akihiro
authors.initials: A
authors.lastname: Yachie
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Kanegane
authors.forename: Toshio
authors.initials: T
authors.lastname: Miyawaki
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Oh-ishi
mesh_terms: D006105:Granulomatous Disease, Chronic / Q000150:complications* / Q000235:genetics*; D006801:Humans; D007223:Infant; D008297:Male; D019255:NADPH Oxidases; D010750:Phosphoproteins / Q000235:genetics*; D018980:Williams Syndrome / Q000150:complications* / Q000235:genetics*
chemical_list: D010750:Phosphoproteins; D019255:NADPH Oxidases; C060505:neutrophil cytosolic factor 1