[Effect of stress on myocardial extensibility and contractile function]

M G Pshennikova, E Ia Vorontsova, F Z Meerson

Biulleten' Eksperimental'Noi Biologii I Meditsiny

|December 1, 1982

Abstract:

The effect of emotional-painful stress (EPS) on myocardial extensibility and contractility was studied on an isolated rat atrium. It was established that after the EPS the myocardial extensibility decreased, the Starling's curve was depressed, and the Starling's mechanism efficiency fell. It is assumed that the revealed alterations in the atrial extensibility and contractility in stress-exposed animals are due to the stress-induced failure of the energy supply and calcium transport systems in cardiomyocytes.

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Abstract:

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