Figure 1.

Effect of histamine H₃-receptor antagonists, ciproxifan and clobenpropit, on the effect of (R)-α-methylhistamine on the different grades of histologic damage. Length values of the gastric mucosa exhibiting damage of different grades are expressed as a percentage of the total length of mucosa measured reported in Table 1. Values are means±s.e.mean from 5–6 rats. ^*P<0.05 and ^**P<0.01 compared with the corresponding group not given the antagonist (ANOVA and Newman-Keuls test).