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正常情况下,肛门所排出的气体可来自吞入的空气、胃酸与碱性分泌液或食物相互作用后产生的CO_2、大肠细菌发酵产生的H_2、CH_4和CO_2以及自血流弥散入肠腔的气体。本文旨在研究正常活动和进食的健康志愿者24小时排气的正常量及组成成份。方法:10名志愿者,男女各5名,年龄19～25岁,无胃肠道疾病,研究前6个月内未用抗生素。每位摄入含有200g茄汁豆的正常饮食,其中6名志愿者还服用无纤维流质饮食。于9时至13时开始收集气体。将一橡皮管插入肛管内40mm,并以胶布固定,外接一个集气袋,在最初6小时,每半小时更换收集袋,以后每小
Under normal circumstances, the gas emitted from the anus can come from the ingestion of air, gastric acid and alkaline secretions or food produced by the interaction of CO_2, H 2, CH 4 and CO 2 produced by the fermentation of bacteria and from the blood flow into the intestine gas. The purpose of this article is to study the normal amount and composition of 24-hour exhaust during normal activities and eating healthy volunteers. METHODS: Ten volunteers, 5 men and women aged 19-25 years with no gastrointestinal disease, were given no antibiotics within the first 6 months of the study. Each intake of a normal diet containing 200g tomato juice beans, of which 6 volunteers also take non-fibrous liquid diet. Gather gas at 9:00 and 13:00. A rubber tube into the anal canal 40mm, and fixed with tape, an external gas collection bag, in the first 6 hours, every half an hour to replace the collection bag, after every small