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Fig. 1. Typical tracings of the effects of 1 mmol l-1 H2S (as
NaHS) on un-stimulated (A) and 10 µmol l-1 carbachol
(CARB)-pre-contracted (B) trout bladders and the effects of hypoxia
(N2) on un-stimulated (C) and CARB-pre-contracted (D) bladders. C
also shows the effect of 10 mmol l-1 of cystathionine
-lyase
inhibitor, D,L-propargylglycine (PPG; N=4) on
un-stimulated bladders before and after exposure to N2. Scale bars,
force-time scale for A and C (left), B and D (right).