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  • Nicardipine dose dependently reduces the effect of equinatoxin II on coronary flow in isolated rat heart
    Grašič-Kuhar, Cvetka ...
    Equinatoxin II (EqT II) decreases coronary flow in guinea-pig and rat heart. It increases cytosolic Ca2+ activity and is supposed to form cation selective membrane pores. In the present study we ... tried to evaluate the influence of theL-type Ca2+ channel antagonist nicardipine upon the vasoconstrictory effectof EqT II on coronary vessels in isolated heart of the rat. Coronary flow was measured during the experiment. Ten min after bolus injection of EqT II the coronary flow decreased to 17.2 +- 4.3% in experiments without nicardipine, and to 39.4 +- 4.5% in the group with 0.1 pM nicardipine (p < 0.05). Our results indicate the possibility that L-type Caa+ channels could beinvolved in the effects of EqT II on coronary flow in the rat heart.
    Source: Life sciences conference 2000 (str. R198-199)
    Type of material - conference contribution
    Publish date - 2001
    Language - english
    COBISS.SI-ID - 13653465