RESUMEN
ObjectiveTo clarify the relationship between intestinal flora and intestinal motility in rats with slow transit constipation （STC） and qi stagnation syndrome by conducting a pseudo-sterile experiment and fecal microbiota transplantation （FMT） technology. MethodsTwenty-four Wistar rats were randomly divided into normal group （n=6）， STC with qi stagnation pattern group （n=6） and pseudo-sterile group （n=12）. In the STC group with qi stagnation pattern， 3 mg/kg of loperamide suspension by intragastric administration combined with tail clamping stimulation were performed to establish the rat model of STC with qi stagnation pattern. After successful modeling， fresh feces from the rats in the STC with qi stagnation pattern group and the normal group were collected to prepare 100 mg/ml of fecal bacterial suspension. In the pseudo-sterile group， the antibiotic cocktail method was used （a mixed antibiotic suspension containing bacitracin， streptomycin sulfate， and neomycin sulfate at 20 mg/ml each was administered intragastrically） to establish pseudo-sterile rats model. After successful modeling， the rats were randomly divided into normal fecal bacterial liquid group and STC with qi stagnation pattern fecal bacterial liquid group， with six rats in each group， and then were given 10 ml/kg of the prepared corresponding rat fecal bacterial suspension by gavage. Rats in STC with qi stagnation pattern group were given an equal volume of sterile water by gavage. All groups were administered once a day for 7 consecutive days. The small intestinal propulsion rate of the STC with qi stagnation pattern group， the normal fecal bacterial liquid group， and STC with qi stagnation pattern fecal bacterial liquid group were compared. ELISA method was used to detect serum 5-hydroxytryptamine （5-HT） levels. Immunohistochemistry was used to detect the positive expression levels of 5-hydroxytryptamine 3 receptor （5-HT3R） and 5-hydroxytryptamine 4 receptor （5-HT4R） in colon tissue. Western blot method was used to detect the protein expression levels of tryptophan hydroxylase 1 （TPH1）， tryptophan hydroxylase 2 （TPH2）， serotonin transporter （SERT）， and monoamine oxidase A （MAO-A） in colon tissue. ResultsCompared to those in the normal fecal bacterial liquid group， the small intestinal propulsion rate， serum 5-HT level， positive expression of 5-HT3R and 5-HT4R in colon tissue， and protein expression of TPH1， TPH2， SERT and MAO-A significantly decreased in the STC with qi stagnation pattern group and STC with qi stagnation pattern fecal bacterial liquid group （P＜0.05）. There was no statistically significant difference in the indicators between the STC with qi stagnation pattern group and STC with qi stagnation pattern fecal bacterial liquid group （P＞0.05）. ConclusionThe intestinal flora in STC rats with qi stagnation pattern can lead to a slowdown in intestinal transmission function， whose mechanism may be related to intestinal motility disorders affected by the synthesis， transport， metabolism and other pathways of 5-HT.
RESUMEN
Objective To observe the clinical effects of Yiweining Capsules combined with rebamipide tablet in the treatment of spleen-stomach qi deficiency syndrome in chronic atrophic gastritis(CAG).Methods Totally 80 patients with CAG were divided into the study group and the control group by using the random number table method,with 40 cases in each group.Both groups were given rebamipide tablet,0.1 g/time,3 times a day,orally;on this basis,the study group added Yiweining Capsules 2 g/time,3 times a day,orally.Both groups were treated continuously for 12 weeks.The TCM efficacy,the efficacy of gastroscopy and the efficacy of histopathology in the two groups were observed.The TCM symptom score before and after treatment in two groups were observed.The adverse reactions were recorded.Results No cases fell off in both groups.The total effective rate was 92.5%(37/40)in the study group and 70.0%(28/40)in the control group,and the clinical efficacy of the study group was better than that of the control group(P<0.01).Compared with before treatment,the total TCM symptom scores in the two groups after treatment decreased(P<0.01);Compared with after treatment,the total scores of TCM symptom in the study group were lower than those in the control group(P<0.05,P<0.01).The total effective rate of gastroscopy in the study group(82.5%)was better than that in the control group(67.5%),with statistical significance(P<0.05).The overall efficacy rate of histopathdogy in the study group(87.5%)was better than that of the control group(70.0%),with statistical significance(P<0.01).There were no adverse reactions in both groups.Conclusion Yiweining Capsules combined with rebamipide tablet can effectively improve the clinical symptoms,gastroscopic manifestations and the degree of mucosal lesions in patients with CAG,with remarkable efficacy.