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“However, the effects of carbachol were attenuated by microinjection of either tetracaine or cobalt into sites near the A7 cell group neurons identified by tyrosine hydroxylase-immunoreactivity.”
“Hyperpolarizations to adenosine were unaltered by inorganic Ca2+ channel antagonists except for cobalt , which also antagonized hyperpolarizations to carbachol and depolarizations to muscarine.”
“Incubation of isolated cells wtih 10(-2) M ethylene glycol-bis-(beta-aminoethylether)-N,N'-tetraacetic acid or cobalt inhibits 22Na and 45Ca uptake stimulated by carbachol.”