ABSTRACT
Objective To detect the c fos proto oncogene expression in the hypothalamus of the mice which underwent water immersion and the effects of propofol Methods Twenty four mice were divided randomly into three groups:group A (normal control), group B (water immersion) and group C (water immersion+propofol) The group C was subdivided into two sub groups: in group C1 3mg/kg propofol was administered intraperitoneally 10min after water immersion; in group C2 3mg/kg propofol was given intraperitoneally 10min before water immersion The cerebral c fos positive cells were detected by S P immunohistochemical assay and the gastric ulcer index was calculated using Guth method Results Animal in group A had no gastric mucosa injury The gastric ulcer index increased significantly (6 2?2 1) with the obvious bleeding points in gastric mucosa and the rate of c fos gene positive cell increased markedly (64 2%?2 1%) in group B as compared with those in group A The gastric ulcer index and c fos gene expression rate decreased greatly in group C1 (3 2?1 0, 21 8%?3 2%) and group C2 (2 1?0 9, 18 4%?3 5%) respectively (P