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Chymotrypsinlike activity of some intestinal bacteria

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Abstract

Some tests of exocrine pancreatic function are based on the estimation of intestinal chymotryptic activity by using specific substrates such asN-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. Except forBacteroides, Proteus vulgaris No. 73,Proteus morgani No. 202, andPseudomonas aeruginosa No. 76, significant splitting of BT-P did not take place when the common enteric microorganisms were tested. It was concluded that with the possible exception of bacterial overgrowth of the small bowel, microbial chymotryptic activity is not of importance.

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References

  1. Boulanger P, Polonovsky J: Commission on biochemical nomenclature. Enzyme Nomenclature. New York, Elsevier, 1972

    Google Scholar 

  2. Pérlis R, Courtois JE in: Janillier M: Traité de biochimie général, Vol. 2, Paris, France, Masson & Cie, pp 464–473

  3. Tsuru D in: Laskin AI, Lechavalier MA: Handbook of Microbiology, Vol. 3. Cleveland, Ohio, CRC Press, 1973

    Google Scholar 

  4. Haverback BJ, Byce BJ, Gutentag PJ, Montgomery DW: Measurement of trypsin and chymotrypsin in stool: A diagnostic test for pancreatic exocrine insufficiency. Gastroenterology 44:588–597, 1963

    Google Scholar 

  5. Gyr K: Tests of exocrine pancreatic function. Current Problems in Biochemistry, Bern, Hans Huber Publishers, 1975

    Google Scholar 

  6. Gyr K, Stalder GA, Schiffmann J, Fehr C, Vonderschmitt D, Fahrländer H: Oral administration of a chymotrypsin-labile peptide—a new test of exocrine pancreatic function in man (PFT). Gut 17:27–32, 1976

    Google Scholar 

  7. Arvanitakis C, Greenberger NJ: Diagnosis of pancreatic disease by a synthetic peptide (N-benzoyl-l-tyrosyl-p-aminobenzoic acid): A new test of exocrine pancreatic function. Lancet 1:663–666, 1976

    Google Scholar 

  8. Bornschein W, Goldmann FL, Otte M: Methodical and first clinical examination results with a new indirect pancreatic function test. Clin Chim Acta 67:21–27, 1976

    Google Scholar 

  9. Stalder GA, Kayasseh L, Gyr K: Die Prüfung der exokrinen Pankreasfunktion mitN-benzoyl-l-tyrosyl-PABA. Dtsch Med Wochenschr 101:1428–1430, 1976

    Google Scholar 

  10. Imondi AR, Stradley RP, Butler ER, Wolgemuth R: A method for the assay of chymotrypsin in crude biological materials. Anal Biochem 54:199–204, 1973

    Google Scholar 

  11. Gorbach SL: Intestinal microflora. Gastroenterology 60:1110–1129, 1971

    Google Scholar 

  12. Drasar BS, Shiner M, McLeod GM: Studies on intestinal flora. I. The bacterial flora of the gastrointestinal tract in healthy and achlorhydric persons. Gastroenterology 56:71–79, 1969

    Google Scholar 

  13. Imondi AR, Stradley RP, Wolgemuth R: Synthetic peptides in the diagnosis of exocrine pancreatic insufficiency in animals. Gut 13:726–731, 1972

    Google Scholar 

  14. Drasar BS, Shiner M: Studies on the intestinal flora. II. Bacterial flora of the small intestine in patients with gastrointestinal disorders. Gut 10:812–819, 1969

    Google Scholar 

  15. Malis F, Herfort K, Schön E: Proteolytische Aktivitäten der mikrobiellen Darmflora. Z Gastroenterol 8:365–370, 1970

    Google Scholar 

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Gyr, K., Felsenfeld, O. & Imondi, A.R. Chymotrypsinlike activity of some intestinal bacteria. Digest Dis Sci 23, 413–416 (1978). https://doi.org/10.1007/BF01072923

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