Effect of propionyl-L-carnitine on mechanical function of isolated rabbit heart.

Abstract:

:We studied the acute and chronic effects of propionyl-L-carnitine (PLC) on mechanical function of isolated rabbit heart. Propionyl-L-carnitine was either directly delivered in the perfusate (10(-9) to 10(-3) M) or intraperitoneally injected (250 mg/kg) for 10 days to the animals. When added acutely, propionyl-L-carnitine had no effect on inotropism, heart rate, or coronary perfusion pressure. When added chronically, propionyl-L-carnitine induced a positive inotropic effect, with no changes in heart rate or in coronary perfusion pressure, and it ameliorated the pressure-volume relationship. This effect of propionyl-L-carnitine was independent of the calcium concentration of the perfusion medium, but it was correlated with an increase in the myocardial content of propionyl-L-carnitine. The effect was not apparent after 5 days of treatment, although the tissue content of propionyl-L-carnitine remained unchanged. These data suggest that propionyl-L-carnitine, when given chronically, exerts a positive inotropic effect.

journal_name

Cardiovasc Drugs Ther

authors

Ferrari R,Pasini E,Condorelli E,Boraso A,Lisciani R,Marzo A,Visiou O

doi

10.1007/BF00128239

subject

Has Abstract

pub_date

1991-02-01 00:00:00

pages

17-23

eissn

0920-3206

issn

1573-7241

journal_volume

5 Suppl 1

pub_type

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