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Variation in NCB5OR: studies of relationships to type 2 diabetes, maturity-onset diabetes of the young, and gestational diabetes mellitus

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Gitte Andersen
  • Lise Wegner
  • Christian Schack Rose
  • Jianxin Xie
  • Hao Zhu
  • Kevin Larade
  • Anders Johansen
  • Jakob Ek
  • Jeannet Lauenborg
  • Drivsholm, Thomas
  • Knut Borch-Johnsen
  • Peter Damm
  • Torben Hansen
  • H Franklin Bunn
  • Oluf Pedersen
Recent data show that homozygous Ncb5or(-/-) knock-out mice present with an early-onset nonautoimmune diabetes phenotype. Furthermore, genome-wide scans have reported linkage to the chromosome 6q14.2 region close to the human NCB5OR. We therefore considered NCB5OR to be a biological and positional candidate gene and examined the coding region of NCB5OR in 120 type 2 diabetic patients and 63 patients with maturity-onset diabetes of the young using denaturing high-performance liquid chromatography. We identified a total of 22 novel nucleotide variants. Three variants [IVS5+7del(CT), Gln187Arg, and His223Arg] were genotyped in a case-control design comprising 1,246 subjects (717 type 2 diabetic patients and 529 subjects with normal glucose tolerance). In addition, four rare variants were investigated for cosegregation with diabetes in multiplex type 2 diabetic families. The IVS5+7del(CT) variant was associated with common late-onset type 2 diabetes; however, we failed to relate this variant to any diabetes-related quantitative traits among the 529 control subjects. Thus, variation in the coding region of NCB5OR is not a major contributor in the pathogenesis of nonautoimmune diabetes.
OriginalsprogEngelsk
TidsskriftDiabetes
Vol/bind53
Udgave nummer11
Sider (fra-til)2992-7
Antal sider6
ISSN0012-1797
StatusUdgivet - 1 nov. 2004

ID: 33030427