No association between the type 2 diabetes mellitus susceptibility gene, SLC30A8 and schizophrenia in a Chinese population

Hum Psychopharmacol. 2012 Jul;27(4):392-6. doi: 10.1002/hup.2239. Epub 2012 Jul 9.


Background: The co-occurrence of schizophrenia and type 2 diabetes mellitus (T2DM) has been well documented. Recent genome-wide association studies and meta-analyses have shown robust associations of the solute carrier family 30 member 8 (SLC30A8) gene variants with T2DM in various populations. We examined the involvement of the SLC30A8 in the susceptibility to schizophrenia in a Han Chinese population.

Methods: The SLC30A8 rs13266634 gene polymorphism was genotyped in 837 chronic schizophrenic and 1109 unrelated healthy controls by using a case control design. We also assessed clinical symptoms.

Results: There were no significant differences in the rs13266634 genotype (χ(2) = 1.95, df = 2, p = 0.38) and allele (χ(2) = 0.47, df = 1, p = 0.50) distributions between the patient and control groups. There was no association between rs13266634 and clinical symptoms.

Conclusion: The SLC30A8 gene variation does not appear to contribute a genetic basis for the co-occurrence of schizophrenia and T2DM.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adult
  • Asian Continental Ancestry Group / genetics
  • Case-Control Studies
  • Cation Transport Proteins / genetics*
  • China
  • Diabetes Mellitus, Type 2 / genetics*
  • Female
  • Genetic Association Studies
  • Genetic Predisposition to Disease
  • Genetic Variation
  • Genotype
  • Humans
  • Male
  • Middle Aged
  • Schizophrenia / genetics*
  • Young Adult
  • Zinc Transporter 8


  • Cation Transport Proteins
  • SLC30A8 protein, human
  • Zinc Transporter 8