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Gender-specific association of the plasminogen activator inhibitor-1 4G/5G polymorphism with central arterial blood pressure
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- Björck, Hanna (author)
- Linköpings universitet,Fysiologi,Hälsouniversitetet
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- Eriksson, Per (author)
- Karolinska Institutet,Karolinska Institute, Stockholm
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- Alehagen, Urban (author)
- Östergötlands Läns Landsting,Linköpings universitet,Kardiologi,Hälsouniversitetet,Kardiologiska kliniken US
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- New York, USA : Nature Publishing Group, 2011
- 2011
- English.
- In: American Journal of Hypertension. - New York, USA : Nature Publishing Group. - 0895-7061 .- 1941-7225. ; 24:7, s. 802-8
- Journal article (peer-reviewed)
Abstract
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- Background: The functional plasminogen activator inhibitor-1 (PAI-1) 4G/5G polymorphism has previously been associated with hypertension. In recent years, central blood pressure, rather than brachial has been argued a better measure of cardiovascular damage and clinical outcome. The aim of this study was to investigate the possible influence of the 4G/5G polymorphism on central arterial blood pressure in a cohort of elderly individuals.Methods: We studied 410 individuals, 216 men and 194 women, aged 70-88. Central pressures and pulse waveforms were calculated from the radial artery pressure waveform by the use of the SphygmoCor system and a generalized transfer function. Brachial pressure was recorded using oscillometric technique (Dinamap, Critikon, Tampa, FL). PAI-1 antigen was determined in plasma.Results: The results showed that central pressures were higher in women carrying the PAI-1 4G/4G genotype compared to female carriers of the 5G/5G genotype, (P = 0.025, P = 0.002, and P = 0.002 for central systolic-, diastolic-, and mean arterial pressure, respectively). The association remained after adjustment for potentially confounding factors related to hypertension. No association of the PAI-1 genotype with blood pressure was found in men. Multiple regression analysis revealed an association between PAI-1 genotype and plasma PAI-1 levels (P = 0.048).Conclusions: Our findings show a gender-specific association of the PAI-1 4G/5G polymorphism with central arterial blood pressure. The genotype effect was independent of other risk factors related to hypertension, suggesting that impaired fibrinolytic potential may play an important role in the development of central hypertension in women.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Keyword
- Aorta
- arterial stiffness
- blood pressure
- genetics
- hypertension
- pressure pulse wave
- MEDICINE
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Dahlström, Ulf
- Länne, Toste
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