The Rsal Polymorphism in the α-Fibrinogen Gene and Response of Plasma Fibrinogen to Physical Training

Rainer Rauramaa; Sari B. Väisänen; Raimo Kuhanen; Ilkka Penttilä; Claude Bouchard

doi:10.1055/s-0037-1613923

Thrombosis and Haemostasis, Inhaltsverzeichnis

Thromb Haemost 2000; 83(06): 803-806
DOI: 10.1055/s-0037-1613923

Commentary

Schattauer GmbH

The Rsal Polymorphism in the α-Fibrinogen Gene and Response of Plasma Fibrinogen to Physical Training

A Controlled Randomised Clinical Trial in Men

Autoren

Rainer Rauramaa

¹From the Kuopio Research Institute of Exercise Medicine and Department of Physiology, University of Kuopio, Kuopio

²Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio
Sari B. Väisänen

¹From the Kuopio Research Institute of Exercise Medicine and Department of Physiology, University of Kuopio, Kuopio

³Department of Clinical Chemistry, Kuopio University Hospital, Kuopio, Finland
Raimo Kuhanen

¹From the Kuopio Research Institute of Exercise Medicine and Department of Physiology, University of Kuopio, Kuopio
Ilkka Penttilä

¹From the Kuopio Research Institute of Exercise Medicine and Department of Physiology, University of Kuopio, Kuopio

³Department of Clinical Chemistry, Kuopio University Hospital, Kuopio, Finland
Claude Bouchard

⁴Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, USA

Abstract

Summary

We have previously reported cross-sectional data on an interaction effect between physical activity and α-fibrinogen Rsal polymorphism on fibrinogen in postmenopausal women. In the present controlled randomised study, we investigated the role of the Rsal polymorphism in determining the response of fibrinogen to long-term regular exercise. Middle-aged men (n = 140), randomly selected from the population registry, were randomised into an exercise or a reference group for a 3-year low intensity exercise intervention. Complete data were available in 125 men. The Rsal restriction enzyme detects threonine (Thr) to alanine change in the fibrinogen α codon 312. Anaerobic ventilatory threshold increased by 4%, but decreased by 2% in the exercise and reference groups, respectively. Mean fibrinogen did not decrease in either study group. However, in the exercise group, individual changes in anaerobic threshold explained 48% of the variance in fibrinogen changes in the Thr homozygotes. Our data offer a new aspect of beneficial effects of regular physical exercise on risk factors for coronary heart disease.

Key words

Fibrinogen - DNA polymorphism - physical exercise training - randomised clinical trial - population based study

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Referenzen

References
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