Response of small intestinal flora to elemental diet and pancreatic duct ligation in vervet monkey.

The small intestinal flora of vervet monkeys (cercopithecus aethiops) was examined before and after feeding elemental diet and after ligation of the pancreatic duct. Elemental diet did not produce significant changes of the intestinal microbial flora. However, an increase of the microbial count consisting mainly of Enterobacteriaceae, molds and yeasts was observed in the duct-ligated animals, significantly more pronounced than in the sham-operated controls.

The effect of oral pancreatic enzymes on the intestinal flora of protein-deficient vervet monkeys challenged with Vibrio cholerae.

Jejunal bacterial flora in 11 protein deficient vervet monkeys (Cercopithecus aethiops) and four controls was studied. These were the same animals from an investigation previously reported in which it was shown that pancreatic extract modified the course of cholera infection in protein-deficient monkeys. The present study reports in addition that these animals the fluid in the upper jejunum contained significantly increased numbers of bacteria including Enterobacteriaceae compared to its predietary state and to that of the controls.

The effect of oral pancreatic extract on jejunal bactericidal activity in protein-deficient vervet monkeys challenged with Vibrio cholerae.

Eleven vervet monkeys (Cercopithecus aethiops) were fed with an "O" protein diet. After the serum albumin level fell below 2.5 g/100 ml the animals and 4 controls, which received regular monkey chow, were orally infected with a monkey-adapted strain of Vibrio cholerae.

Chymotrypsinlike activity of some intestinal bacteria.

Some tests of exocrine pancreatic function are based on the estimation of intestinal chymotryptic activity by using specific substrates such as N-benzoyl-L-tyrosyl-PABA (BT-P). In this study the action of a number of bacteria isolated from human or monkey intestines on BT-P was investigated. The monkeys studied had an intestinal flora closely resembling that of man.