Clearance of viable Calmette-Guèrin bacillus by the in vitro isolated and perfused rat liver. 1977

G Ruggiero, and A Andreana, and A Ninni, and G Curci, and R Utili, and G Giusti

Liver efficiency in clearing circulating BCG (Clamette-Guèrin bacillus) was studied using the isolated rat liver. Bacteria were added to the perfusate at a concentration of 1 X 10(6) cells/ml, and the medium was then sampled at subsequent intervals for 6 hours in 2 perfusions and for 1 hour in 7 perfusions. At the end of all perfusions, liver and bile samples were obtained and used for viable bacterial counts. For each perfusion the bactericidal activity which might have been exerted by serum present in the perfusate was also investigated. About 95% of BCG disappeared from the perfusate after 6 hours of perfusions, and 90% after 1 hour. Recovery of viable bacteria in the liver at 60 minutes averaged 80% of the inoculum. Recovery in bile was negligible. Control experiments indicated that extrahepatic factors in possible reduction of bacterial concentration in the perfusate did not interfere with hepatic removal, per se.

UI MeSH Term Description Entries
D007728 Kupffer Cells Specialized phagocytic cells of the MONONUCLEAR PHAGOCYTE SYSTEM found on the luminal surface of the hepatic sinusoids. They filter bacteria and small foreign proteins out of the blood and dispose of worn out red blood cells. Kupffer Cell,Cell, Kupffer,Cells, Kupffer
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008297 Male Males
D009163 Mycobacterium bovis The bovine variety of the tubercle bacillus. It is called also Mycobacterium tuberculosis var. bovis. BCG,Calmette-Guerin Bacillus
D010477 Perfusion Treatment process involving the injection of fluid into an organ or tissue. Perfusions
D010587 Phagocytosis The engulfing and degradation of microorganisms; other cells that are dead, dying, or pathogenic; and foreign particles by phagocytic cells (PHAGOCYTES). Phagocytoses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001500 BCG Vaccine An active immunizing agent and a viable avirulent attenuated strain of MYCOBACTERIUM BOVIS, which confers immunity to mycobacterial infections. It is used also in immunotherapy of neoplasms due to its stimulation of antibodies and non-specific immunity. Bacillus Calmette Guerin Vaccine,Calmette Guerin Bacillus Vaccine,Calmette's Vaccine,Calmette Vaccine,Calmettes Vaccine,Vaccine, BCG,Vaccine, Calmette's
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D066298 In Vitro Techniques Methods to study reactions or processes taking place in an artificial environment outside the living organism. In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In

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