Lymphocytes sensitize rat isolated atria to the inotropic and chronotropic effects of sodium arachidonate.


Normal human lymphocytes (4 X 10(5) ml-1) incubated with sodium arachidonate (8 X 10(-7)M) (NaA-L) induced a strong enhancement of the tension and frequency of spontaneously beating rat atria. Normal human lymphocytes (L) or NaA alone at 8 X 10(-7)M did not modify this contractile activity. Between 2 X 10(-6)M to 1 X 10(-5)M NaA alone increased the tension… (More)


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