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Leif Groop

Leif Groop

Principal investigator

Leif Groop

Association studies of BMI and type 2 diabetes in the neuropeptide y pathway - A possible role for NPY2R as a candidate gene for type 2 diabetes in men


  • Catarina D. Campbell
  • Helen N. Lyon
  • James Nemesh
  • Jared A. Drake
  • Tiinamaija Tuomi
  • Daniel Gaudet
  • Xiaofeng Zhu
  • Richard S. Cooper
  • Kristin G. Ardlie
  • Leif Groop
  • Joel N. Hirschhorn

Summary, in English

The neuropeptide Y (NPY) family of peptides and receptors regulate food intake. Inherited variation in this pathway could influence susceptibility to obesity and its complications, including type 2 diabetes. We genotyped a set of 71 single nucleotide polymorphisms (SNPs) that capture the most common variation in NPY, PPY, PYY, NPY1R, NPY2R, and NPY5R in 2,800 individuals of recent European ancestry drawn from the near extremes of BMI distribution. Five SNPs located upstream of NPY2R were nominally associated with BMI in men (P values = 0.001-0.009, odds ratios [ORs] 1.27-1.34). No association with BMI was observed in women, and no consistent associations were observed for other genes in this pathway. We attempted to replicate the association with BMI in 2,500 men and tested these SNPs for association with type 2 diabetes in 8,000 samples. We observed association with BMI in men in only one replica- tion sample and saw no association in the combined replication samples (P = 0.154, OR = 1.09). Finally, a 9% haplotype was associated with type 2 diabetes in men (P = 1.73 x 10(-4), OR = 1.36) and not in women. Variation in this pathway likely does not have a major influence on BMI, although small effects cannot be ruled out; NPY2R should be considered a candidate gene for type 2 diabetes in men.


  • Genomics, Diabetes and Endocrinology

Publishing year












Document type

Journal article


American Diabetes Association Inc.


  • Endocrinology and Diabetes



Research group

  • Genomics, Diabetes and Endocrinology


  • ISSN: 1939-327X