Apr 30, 1976

The effect of beta adrenergic blockade upon exercise-induced changes in blood coagulation and fibrinolysis

Thrombosis and Haemostasis
B J BrittonM H Irving

Abstract

Exercise stress is known to stimulate blood coagulation and fibrinolysis possibly as a result of sympatho-adrenal stimulation of the beta adrenergic receptor. In order to test this hypothesis five men exercised on four separate occasions with and without prior beta adrenergic blockade with oxprenolol, propranolol and pindolol. The increase in plasma adrenaline and noradrenaline concentration was much greater during exercise under beta blockade but activation of fibrinolysis was enhanced as well. Factor VIII levels did not change significantly during any of the experiments. These results suggest that the activation of fibrinolysis by exercise is not mediated by the beta adrenergic receptor. The influence of beta adrenergic blockade on the change in factor VIII with exercise was inconclusive.

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Mentioned in this Paper

Activation of Fibrinolysis
F8 gene
Factor VIII Procoagulant Activity
Oxprenolol
Factor VIII Measurement
Epinephrine Measurement
Medihaler-Epi
Pindolol
Assay of Fibrinolysis
Norepinephrine

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