RESUMO
OBJECTIVE: To investigate the field planting of Bacillus bifidus and Bacillus acid lactic on mucosa membrane of gaster, jejunal, ileum, ascending colon, and descending colon in rats with renal failure, and to observe their decomposition of creatinine (Cr), urea nitrogen (UN),and uric acid (UA). METHODS: Forty SD rats were randomly divided into 4 groups. Group A was normal control group,and 10 of them were sham-operated. Thirty of them were operated with 5/6 nephrectomy. Group B was pathological control group. Group C were fed Bacillus bifidus and Group D were fed lactobacillus. After 1 week all rats were sacrificed as samples of blood, digestive juice and gastrointestinal mucosa were taken.Bacteria on the gastrointestinal mucosa were counted. The concentration of UN, Cr,and UA of blood and digestive juice was determined. RESULTS: The number of bacteria on the gastrointestinal mucosa of Group B was less than that of Group A (P<0.05), but that of Group C and D was more than that of Group A and B. The bacteria number on the gastric mucosa was least and that on the descending colon was most. There was significant difference in the bacteria number and concentration of Cr, UN,and UA in various sites of the gastrointestinal tract (P<0.05). The concentrations of Cr, UN, and UA in the digestive juice of various sites and serum in Group C and D were lower than those in Group B (P<0.05). Bacteria planting number in the digestive tract has obvious negative correlation with the concentration of Cr,UN, and UA in the blood and digestive tract. CONCLUSION: Field planting of lactobacillns and Bacillus bifidus, and the concentration of low molecule urotoxin are different in various sites of the gastrointestinal tract. It can decrease the concentration of BUN,Cr,and UA in rats with renal failure by feeding lactobacillus and Bacillus bifidus.
