Research Article

Ameliorative Effects of Humulus japonicus Extract and Polysaccharide-Rich Extract of Phragmites rhizoma in Rats with Gastrointestinal Dysfunctions Induced by Water Avoidance Stress

Figure 4

Effect of HJE and PEP on EFS-induced colonic contractility in WAS rats. The effect of 10-day pretreatment with 0.25 and 0.5 ml/kg of HJE and PEP on EFS-induced contractility in WAS rats (a). The effect of HJE and PEP (extract was added at 1 and 5 μL/ml, to the tissue organ bath 15 min before EFS) on EFS-induced colonic motility in WAS models (b). versus normal groups; versus WAS group by two-way ANOVA. Data were expressed as mean ± SEM (n = 8).
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