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Olle Melander

Principal investigator

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A genetic risk score for fasting plasma glucose is independently associatedwith arterial stiffness : A Mendelian randomization study

Author

  • Mikael Gottsäter
  • George Hindy
  • Marju Orho-Melander
  • Peter M. Nilsson
  • Olle Melander

Summary, in English

Background: Arterial stiffness is known to be associated with a number of clinical conditions including hypertension, diabetes and dyslipidemia, and may predict cardiovascular events and mortality. However, causal links are hard to establish. Results from genome-wide association studies have identified only a few single nucleotide polymorphisms associated with arterial stiffness, the results have been inconsistent between studies and overlap with other clinical conditions is lacking. Our aim was to investigate a potential shared set of risk single nucleotide polymorphisms between relevant cardiometabolic traits and arterial stiffness. Method: The study population consisted of 2853 individuals (mean age 72 years, 40% men) from the population-based Malmö Diet and Cancer study, Sweden. Carotid-femoral pulse wave velocity, a marker of arterial stiffness, was measured with Sphygmocor. Mendelian randomization analyses were performed using the twostage least square regression and multivariate inversevariance weighted methods. Results: There were positive associations between arterial stiffness and genetic risk scores for type 2 diabetes (β=0.03, P=0.04) and fasting plasma glucose (β=0.03, P=0.03), but not for systolic blood pressure, body mass index, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol or triglycerides. Multivariate inversevariance weighted methods confirmed the significant positive association for fasting plasma glucose β coefficients (P=0.006), but not for type 2 diabetes β coefficients (P=0.88). Conclusion: Genetically elevated fasting plasma glucose, but not genetically elevated risk of type 2 diabetes, was associated with arterial stiffness suggesting a causal stiffening effect of glycemia on the arterial wall, independently of type 2 diabetes.

Department/s

  • Internal Medicine - Epidemiology
  • EpiHealth: Epidemiology for Health
  • Diabetes - Cardiovascular Disease
  • EXODIAB: Excellence in Diabetes Research in Sweden
  • Department Office of Clinical Sciences, Malmö
  • Cardiovascular Research - Hypertension

Publishing year

2018

Language

English

Pages

809-814

Publication/Series

Journal of Hypertension

Volume

36

Issue

4

Document type

Journal article

Publisher

Lippincott Williams & Wilkins

Topic

  • Endocrinology and Diabetes

Keywords

  • Aging
  • Arterial stiffness
  • Diabetes mellitus
  • Epidemiology
  • Hyperglycemia
  • Mendelian randomization

Status

Published

Research group

  • Internal Medicine - Epidemiology
  • Diabetes - Cardiovascular Disease
  • Cardiovascular Research - Hypertension

ISBN/ISSN/Other

  • ISSN: 0263-6352