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Fig. 8. The effects of calcium free saline (N=6; cross-hatched bars) on
in situ (A) noradrenaline (filled bar), adrenaline (unfilled bar) and
total catecholamine (sum of noradrenaline + adrenaline) and (B) nitric oxide
(NO) secretion rates in response to electrical stimulation at 30 V and 8 Hz.
Values are means ± 1 S.E.M. A dagger denotes a significant
difference (P<0.5) between pre-stimulated and stimulated groups.
An asterisk denotes a significant difference (P<0.5) between the
control (N=6) and the Ca2+-free treated group
(cross-hatched).