title: A functional variant in the serine-threonine kinase coding gene is associated with hypertension: a case-control study in a Finnish population, the Tampere adult population cardiovascular risk study.
abstract: OBJECTIVE
  Hypertension raises the risk of cardiovascular consequences to two-fold or three-fold. The incidence of hypertension is increasing worldwide. Genetic causes of blood pressure are estimated to cause half of the hypertension effect, but the genes behind this are still fairly unclear. Polymorphisms in gene STK39 (serine/threonine kinase) have in some studies been associated with hypertension, but results have differed according to genetic population. We screened the STK39 polymorphism rs6749447 in a Finnish cohort to see if it was associated with hypertension.
  
  
  METHODS
  The study included 447 hypertensive cases and 771 controls. All participants were 50-year-old Finnish patients and the data was collected from the Tampere adult population cardiovascular risk study (TAMRISK). Genotypes were determined by polymerase chain reaction using DNAs extracted from buccal swabs.
  
  
  RESULTS
  The risk for hypertension among G-allele carriers was 1.4-fold compared with controls (P = 0.006, 95% CI = 1.10-1.79). The genetic effect of the G-allele was even more significant when the strong effect of BMI on hypertension was taken into account: for normal weight patients (BMI < 25) the risk was two-fold (P = 0.003, 95% CI 1.3-3.1) and for normal weight or slightly overweight patients (BMI < 30), the risk was 1.6-fold (P = 0.001, 95% CI 1.2-2.2).
  
  
  CONCLUSIONS
  In conclusion, there was a significant association between STK39 genetic variant rs6749447 and hypertension in a Finnish cohort.
authors.affiliation: Department of Medical Biochemistry, University of Tampere Medical School, Tampere, Finland.
authors.forename: Kirsi M
authors.initials: KM
authors.lastname: Määttä
authors.forename: Seppo T
authors.initials: ST
authors.lastname: Nikkari
authors.forename: Kati H
authors.initials: KH
authors.lastname: Lähteelä
authors.forename: Pirjo B M
authors.initials: PB
authors.lastname: Palmroos
authors.forename: Tarja A
authors.initials: TA
authors.lastname: Kunnas
mesh_terms: D001483:Base Sequence; D016022:Case-Control Studies; D017931:DNA Primers; D005387:Finland; D006801:Humans; D006973:Hypertension / Q000201:enzymology* / Q000235:genetics*; D008875:Middle Aged; D017346:Protein Serine-Threonine Kinases / Q000235:genetics*
chemical_list: D017931:DNA Primers; D017346:Protein Serine-Threonine Kinases; C486409:STK39 protein, human