Objective To investigate the diagnosis rate of early gastric calleer(EGC)with mucosa biopsy after compound staining under gastroseopy.Methods Two hundreds and six pafients who suspected tO be EGC by gastroscopy were randomly divided into two groups,the mucosa in control group(n=103)was biopsy directly under gastrescopy,and the experimental group(n=103)was biopsy after compound staining.Compared the diagnosis rate of ECG between these two groups.Results Twelve cases were confirmed to be EGC by surgery plus pathology among all the patients.Two cases were from control group,the other ten cases were from experimental group.Type Ⅱ c+Ⅲ accounted for 58.3%of twelve EGG.Eleven cases(91.7%)were positive with helicobacter pylori(Hp).Conclusion Compound staining may improve diagnosis rate of ECG.There is significant deference between directed and mueosa biopsy after compound staining under gastrescopy(P=0.033).TypeⅡc+Ⅲwere main type in endoscope of EGC.Hp infection is closely related to early gastric cancer.

BACKGROUND: Previously, there are some researches on studying the effects of hypoxia or hypothermia singly. Nowadays, study on the synthetic action of hypoxia and hypothermia has been attached widely importance.OBJECTIVE: To explore the combination effects of acute hypothermia and hypoxia on superoxide dismutase(SOD) and malondialdehyde in normal rabbits and rabbits with myocardial ischemia.DESIGN: Randomized controlled trial.SETTING, MATERIALS and INTERVENTIONS: Experimental site:Physiological Laboratory of Youjiang Ethnic Medical College. A total of 32 healthy rabbits weighed between 1.8to 2.5 kg were chosen. They were randomly divided into 4 groups each with 8 rabbits: normal group, hypothermia and hypoxia group, ischemic group with normal temperature and oxygen,ischemic group with hypothermia and hypoxia. Normal rabbits and ischemic rabbits were put in fridge at low temperature( -10 ± 2) ℃ and low oxygen (oxygen content of 8.5% ) for one hour and tested activity of SOD and concentration of malondialdehyde in serum.MAIN OUTCOME MEASURES: Comparison of serum SOD and malondialdehyde between normal rabbits and myocardial ischemic rabbits under the acute hypothermia and hypoxia conditions.RESULTS: The SOD level of rabbits in hypothermia and hypoxia group [(371.04 ± 29.96) kNU/L] was much lower than that of normal temperature and oxygen group[ (424.09 ± 22.59) kNU/L] ( t = 5.21, P < 0.01) while the content of malondialdehyde[ (5.58 ± 0. 44) μ mol/L] was greater than that of normal group[ (4.44 ± 1.11) μ mol/L] ( t = 3.21, P < 0.05) . In myocardial ischemia group with hypothermia and hypoxia, SOD was greatly lower than that of myocardial ischemia group with normal temperature and oxygen(t=4.37, P < 0.01) while the malondialdehyde was greatly higher than that of ischemic group with normal temperature and oxygen group(t=2.94, P <0.05).CONCLUSION: The combined effects of acute hypothermia and hypoxia will aggravate the damage to body.