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Figure 6


Fig. 6. Responses to uridine 5'-triphosphate (UTP) in stomach muscle preparations. (A) Concentration-dependent response of mean force to UTP. A statistically significant decrease was obtained at >=10 µmol l–1 in prometamorphosis (N=9) and in juvenile tissues at 1000 µmol l–1 (N=12). In metamorphic tissues a significant increase was obtained at >=30 µmol l–1 (N=6). Control value prior to administration of agonist is denoted C on the x-axis. Statistical analysis was performed using repeated measures one-way ANOVA followed by Dunnett's post hoc test. (B–D) Representative traces of the response to UTP in (B) prometamorphic tissues, (C) metamorphic tissues and (D) juvenile tissues (concentrations in µmol l–1).





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