Effects of carbachol and adenosine on neurotransmitter secretion induced by potassium chloride, ionomycin, and sucrose.

ABSTRACT

We compared the effects of adenosine and cholinergic agonist carbachol on spontaneous secretion during local application of K+, ionomycin, and sucrose increasing Ca2+ concentration in the nerve terminal. Adenosine and carbachol had no effect on Ca2+ entry, but modulated later stages of exocytosis.