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Thromb Haemost 1999; 82(03): 1117-1120
DOI: 10.1055/s-0037-1614339
Letters to the Editor
Schattauer GmbH

Regular Exercise, Plasminogen Activator Inhibitor-1 (PAI-1) Activity and the 4G/5G Promoter Polymorphism in the PAI-1 Gene

Sari B. Väisänen
1   From the Kuopio Research Institute of Exercise Medicine and Department of Physiology, University of Kuopio, Kuopio, Finland
,
Steve E. Humphries
2   Centre for Cardiovascular Genetics, Department of Medicine, UCLMS, The Rayne Institute, London, UK
,
Le-Anh Luong
2   Centre for Cardiovascular Genetics, Department of Medicine, UCLMS, The Rayne Institute, London, UK
,
Ilkka Penttilä
3   Department of Clinical Chemistry, Kuopio University Hospital, Kuopio, Finland
,
Claude Bouchard
4   Physical Activity Sciences Laboratory, Laval University, Ste-Foy, Québec, Canada
,
Rainer Rauramaa
1   From the Kuopio Research Institute of Exercise Medicine and Department of Physiology, University of Kuopio, Kuopio, Finland
5   Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland
› Author Affiliations
Further Information

Publication History

Received 08 March 1999

Accepted after revision 04 May 1999

Publication Date:
09 December 2017 (online)

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Summary

The aim of this controlled randomised clinical trial was to investigate the effects of regular low to moderate intensity physical activity on plasminogen activator inhibitor-1 (PAI-1) activity during three years while taking into account the 4G/5G polymorphism in the promoter of the PAI-1 gene. Male subjects (age 52-62 years, n = 132) were randomised into an exercise or a (non-intervention) reference group. Aerobic threshold increased by 8.8% (p = 0.025) in the exercise group, and decreased by 1.1% in the non-intervention group, while PAI-1 activity did not change significantly in either study group. However, homozygotes for the 4G allele in the exercise group showed a 36% reduction in PAI-1 (p = 0.025). In conclusion, although regular moderate physical activity did not decrease PAI-1 activity in the whole group, regular exercise may be effective for controlling elevated PAI-1 level in subjects homozygous for the 4G allele.

Key words

Plasminogen activator inhibitor-1 - DNA polymorphism - exercise training - randomised clinical trial - population based study
 

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