Abstract
Heat-extracted antigens from seven species of Bacteroides were used in passive hemagglutination and counterimmunoelectrophoretic tests. Sera from 87 normal persons (group I) and 15 patients with ulcerative colitis (group II) were of low and equal reactivity in passive hemagglutination tests; all positive tests were eliminated by 2-mercaptoethanol reduction of the sera. When these same sera were tested by counterimmunoelectrophoresis with six of the Bacteroides antigens, no significant difference in the percentage of positive reactions was noted. However, using the chi-square test, the seventh antigen, prepared from Bacteroides vulgatus, successfully distinguished the two populations at the 0.025 level. Counterimmunoelectrophoretic tests with the B. vulgatus antigen also provided a means to separate the patients in group II with active disease from those in remission at a P value of 0.01. All the sera from 12 patients with defined Crohn's disease activity indexes reacted with the B. vulgatus antigen in counterimmunoelectrophoretic tests. Reduction and alkylation of patient sera with 2-mercaptoethanol and iodoacetamide removed detectable antibody in 78% of the samples, which suggested a dominant role of immunoglobulin M in the response to Bacteroides antigens.
Full text
PDF





Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Aranki A., Freter R. Use of anaerobic glove boxes for the cultivation of strictly anaerobic bacteria. Am J Clin Nutr. 1972 Dec;25(12):1329–1334. doi: 10.1093/ajcn/25.12.1329. [DOI] [PubMed] [Google Scholar]
- Banatvala J. E., Best J. M., Kennedy E. A., Smith E. E., Spence M. E. A serological method for demonstrating recent infection by rubella virus. Br Med J. 1967 Jul 29;3(5560):285–286. doi: 10.1136/bmj.3.5560.285. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Beeken W. L., Kanich R. E. Microbial flora of the upper small bowel in Crohn's disease. Gastroenterology. 1973 Sep;65(3):390–397. [PubMed] [Google Scholar]
- Best W. R., Becktel J. M., Singleton J. W., Kern F., Jr Development of a Crohn's disease activity index. National Cooperative Crohn's Disease Study. Gastroenterology. 1976 Mar;70(3):439–444. [PubMed] [Google Scholar]
- Brown W. R., Lee E. M. Radioimmunologic measurements of naturally occurring bacterial antibodies. I. Human serum antibodies reactive with Escherichia coli in gastrointestinal and immunologic disorders. J Lab Clin Med. 1973 Jul;82(1):125–136. [PubMed] [Google Scholar]
- Brown W. R., Lee E. Radioimmunological measurements of bacterial antibodies. II. Human serum antibodies reactive with Bacteroides fragilis and Enterococcus in gastrointestinal and immunological disorders. Gastroenterology. 1974 Jun;66(6):1145–1153. [PubMed] [Google Scholar]
- Cooke E. M. A quantitative comparison of the faecal flora of patients with ulcerative colitis and that of normal persons. J Pathol Bacteriol. 1967 Oct;94(2):439–444. doi: 10.1002/path.1700940225. [DOI] [PubMed] [Google Scholar]
- Danielsson D., Lambe D. W., Jr, Persson S. The immune response in a patient to an infection with Bacteroides fragilis ss. fragilis and Clostridium difficile. Acta Pathol Microbiol Scand B Microbiol Immunol. 1972;80(5):709–712. doi: 10.1111/j.1699-0463.1972.tb00198.x. [DOI] [PubMed] [Google Scholar]
- Gorbach S. L., Nahas L., Plaut A. G., Weinstein L., Patterson J. F., Levitan R. Studies of intestinal microflora. V. Fecal microbial ecology in ulcerative colitis and regional enteritis: relationship to severity of disease and chemotherapy. Gastroenterology. 1968 Apr;54(4):575–587. [PubMed] [Google Scholar]
- Jodal U., Ahlstedt S., Hanson L. A., Lidin-Janson G., Akerlund A. S. Intestinal stimulation of the serum antibody response against Escherichia coli O83 antigen in healthy adults. Int Arch Allergy Appl Immunol. 1977;53(6):481–489. doi: 10.1159/000231789. [DOI] [PubMed] [Google Scholar]
- LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
- Mancini G., Carbonara A. O., Heremans J. F. Immunochemical quantitation of antigens by single radial immunodiffusion. Immunochemistry. 1965 Sep;2(3):235–254. doi: 10.1016/0019-2791(65)90004-2. [DOI] [PubMed] [Google Scholar]
- Monteiro E., Fossey J., Shiner M., Drasar B. S., Allison A. C. Antibacterial antibodies in rectal and colonic mucosa in ulcerative colitis. Lancet. 1971 Feb 6;1(7693):249–250. doi: 10.1016/s0140-6736(71)90997-4. [DOI] [PubMed] [Google Scholar]
- Quick J. D., Goldberg H. S., Sonnenwirth A. C. Human antibody to Bacteroidaceae. Am J Clin Nutr. 1972 Dec;25(12):1351–1356. doi: 10.1093/ajcn/25.12.1351. [DOI] [PubMed] [Google Scholar]
- SENECA H., HENDERSON E. Normal intestinal bacteria in ulcerative colitis. Gastroenterology. 1950 May;15(1 1):34–39. [PubMed] [Google Scholar]
- Shorter R. G., Tomasi T. B., Huizenga K. A., Spencer R. J., Stobo J. D. The immunology of chronic ulcerative colitis and Crohn's disease. Ann N Y Acad Sci. 1976;278:586–591. doi: 10.1111/j.1749-6632.1976.tb47073.x. [DOI] [PubMed] [Google Scholar]
- WINZLER R. J. Determination of serum glycoproteins. Methods Biochem Anal. 1955;2:279–311. doi: 10.1002/9780470110188.ch10. [DOI] [PubMed] [Google Scholar]

