| Journal: | The journal of venomous animals and toxins including tropical diseases |
| Database: | PERIÓDICA |
| System number: | 000298819 |
| ISSN: | 1678-9199 |
| Authors: | Baldassi, L1 Barbosa, M.L2 Bach, E.E3 Iaria, S.T4 |
| Institutions: | 1Instituto Biologico, Secao de Bacteriologia Geral e Micobacterioses, Sao Paulo. Brasil 2Instituto Adolfo Lutz, Sao Paulo. Brasil 3Universidade Camilo Castelo Branco, Fernandopolis, Sao Paulo. Brasil 4Universidade de Sao Paulo, Instituto de Ciencias Biomedicas, Sao Paulo. Brasil |
| Year: | 2004 |
| Volumen: | 10 |
| Number: | 3 |
| Pages: | 280-292 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | Ten out of eighty-nine strains biochemically identified as Clostridium perfringens, isolated from bovine organs, were selected by their different results showed in toxigenicity test on mice. Those and the standard strains, ATCC types A, B, C, and D, had their virulence exalted through serial intramuscular inoculation into guinea pigs. Results showed that, for toxigenic strains (6), one or two passages were enough to cause exaltation, while for the atoxigenic (4), five or six inoculations were needed. Esterase electrophoresis of standard and isolated strains, with and without exaltation, was performed. Electrophoresis analysis permits the following conclusions: strains that do not show any clinical symptoms in mice, when exalted demonstrate decreased esterase activity; on the contrary, it is increased when correlated with animal symptoms |
| Disciplines: | Biología, Medicina veterinaria y zootecnia |
| Keyword: | Bovinos, Medicina veterinaria, Microbiología, Clostridium perfringens, Electroforesis, Virulencia |
| Keyword: | Biology, Veterinary medicine and animal husbandry, Bovines, Veterinary medicine, Microbiology, Clostridium perfringens, Electrophoresis, Virulence |
| Full text: | Texto completo (Ver HTML) |
