on February 28, 2005
Published online before print February 28, 2005, doi: 10.1161/01.HYP.0000158946.53289.24
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Submitted on January 7, 2005
From the Steno Diabetes Center (G.A., L.W., D.P.J., C.G., L.T., P.P., S.K.H., E.-M.D.N., J.E., A.V., H.-H.P., K.B.-J.,T.H., O.P.), Gentofte, Denmark; the Research Centre for Prevention and Health (C.G., T.D., K.B.-J., T.J.), Copenhagen County, Glostrup University Hospital, Denmark; Exiqon A/S (P.M.), Vedbæk, Denmark; and the Faculty of Health Science (K.B.-J., O.P.), University of Aarhus, Denmark. * To whom correspondence should be addressed. E-mail: gtta{at}steno.dk.
Abstract--PGC-1
Revised on January 24, 2005
PGC-1
Gitte Andersen*; 
Gly482Ser Polymorphism Associates With Hypertension Among Danish Whites
is a coactivator of numerous transcription factors and is expressed in tissues with high energy demands and abundant in mitochondria. It is induced in the myocardium on fasting and physical exercise, and cardiac-specific overexpression stimulates mitochondrial biogenesis in mice. The common Gly482Ser polymorphism of PGC-1 has previously shown association with arterial hypertension among Austrian men. Thus, we aimed at investigating this relationship in the Danish white population. The Gly482Ser polymorphism was genotyped in a total of 2562 Danish white subjects using polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) and a GenoView locked nucleic acid assay (LNA), and the relationships of this variant with blood pressure levels and arterial hypertension were analyzed. Furthermore, we performed a combined analysis of the data from the present study in combination with previously published results. The Ser/Ser genotype was significantly associated with a reduced risk of hypertension and with lower systolic, diastolic, and mean arterial blood pressure levels, predominantly among women. Finally, in a combined analysis using data obtained in both sexes, the Ser/Ser genotype group had an estimated odds ratio of 0.70 (95% confidence interval, 0.56 to 0.86) for hypertension compared with Gly/X carriers (P=0.001). In conclusion, the Ser allele of PGC-1 Gly482Ser confers a significantly reduced risk of hypertension in whites. Further studies are needed to elucidate the differential role of this polymorphism in men and women.
Key words: genetics • hypertension • diabetes, type 2
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