Cancer Causes & Control

, Volume 23, Issue 10, pp 1653–1663

ADRB2 GG haplotype associated with breast cancer risk among Hispanic and non-Hispanic white women: interaction with type 2 diabetes and obesity

  • Avonne Connor
  • Richard N. Baumgartner
  • Richard A. Kerber
  • Elizabeth O’Brien
  • Shesh N. Rai
  • Roger K. Wolff
  • Martha L. Slattery
  • Anna R. Giuliano
  • Betsy C. Risendal
  • Tim E. Byers
  • Kathy B. Baumgartner
Original paper

DOI: 10.1007/s10552-012-0043-6

Cite this article as:
Connor, A., Baumgartner, R.N., Kerber, R.A. et al. Cancer Causes Control (2012) 23: 1653. doi:10.1007/s10552-012-0043-6
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Abstract

Introduction

Polymorphisms in the beta-2-adrenergic receptor (ADRB2) gene have been studied in relation to risk of type 2 diabetes and obesity, risk factors that have received increased attention in relation to breast cancer. We evaluated the hypothesis that ADRB2 variants (rs1042713, rs1042714) are associated with breast cancer risk in non-Hispanic white (NHW) and Hispanic (H) women using data from a population-based case–control study conducted in the southwestern United States.

Methods

Data on lifestyle and medical history, and blood samples, were collected during in-person interviews for incident primary breast cancer cases (1,244 NHW, 606 H) and controls (1,330 NHW, 728 H). ADRB2 genotypes for rs1042713(G/A) and rs1042714(G/C) were determined using TaqMan assays. The associations of each variant and corresponding haplotypes with breast cancer were estimated using multivariable logistic regression.

Results

Two copies compared to one or zero copies of the ADRB2 GG haplotype were associated with increased breast cancer risk for NHW women [odds ratio (OR), 1.95; 95 % confidence interval (95 % CI), 1.26–3.01], but with reduced risk for H women [OR, 0.74; 95 % CI, 0.50–1.09]. Effect estimates were strengthened for women with a body mass index (BMI) ≥25 kg/m2 [H: OR, 0.50; 95 % CI, 0.31–0.82; NHW: OR, 3.85; 95 % CI, 1.88–7.88] and for H women with a history of diabetes [H: OR, 0.32; 95 % CI, 0.12–0.89].

Conclusions

These data suggest that ethnicity modifies the association between the ADRB2GG haplotype and breast cancer risk, and being overweight or obese enhances the divergence of risk between H and NHW women.

Keywords

Breast cancerHispanicBeta-2-adrenergic receptorHaplotypesObesityDiabetes

Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Avonne Connor
    • 1
  • Richard N. Baumgartner
    • 1
  • Richard A. Kerber
    • 1
  • Elizabeth O’Brien
    • 1
  • Shesh N. Rai
    • 1
  • Roger K. Wolff
    • 2
  • Martha L. Slattery
    • 2
  • Anna R. Giuliano
    • 5
  • Betsy C. Risendal
    • 3
    • 4
  • Tim E. Byers
    • 3
    • 4
  • Kathy B. Baumgartner
    • 1
  1. 1.Department of Epidemiology and Population Health, School of Public Health and Information SciencesUniversity of LouisvilleLouisvilleUSA
  2. 2.Division of Epidemiology, Department of Internal MedicineUniversity of UtahSalt Lake CityUSA
  3. 3.Department of EpidemiologyColorado School of Public HealthAuroraUSA
  4. 4.Department of Community and Behavioral HealthColorado School of Public HealthAuroraUSA
  5. 5.Department of Cancer Epidemiology and GeneticsH. Lee Moffit Cancer Center and Research InstituteTampaUSA