Biomaterial Database

Bactericidal and opsonic activities of normal sheep serum against gram-negative bacteria. 1975

K R Mittal, and D G Ingram

The bactericidal and opsonic activities of normal sheep serum against 9 smooth and 4 rough strains of gram-negative bacteria were measured. Three smooth strains-Escherichia coli 3662, Salmonella typhimurium, and Salmonella gallinarum-were resistant to the bactericidal action of normal sheep serum with or without complement. Six smooth strains-E coli O78:K80(B), Salmonella arizonae, Proteus inconstans, Klebsiella pneumoniae, Salmonella stanley, and Salmonella abortus-equi-were moderately sensitive to bactericidal activity of fresh sheep serum. After complement was added, serum heated at 56 C for 30 minutes did not regain its bactericidal activity against E coli O78:K80(B), P inconstans, nor S abortus-equi. Four rough strains-E coli Lilly, Salmonella cholerae-suis, Shigella sonnei, and Hafnia alvei-were very sensitive to the bactericidal activity of normal sheep serum. Somatic agglutinins were demonstrated in all of the sheep serums against all of the bacteria, but this antibody activity was partially destroyed by heating at 56 C for 30 minutes. The opsonic activity of normal sheep serum was demonstrated in normal mice. In the mouse peritoneal cavity, normal sheep serum enhanced opsonic activity against all smooth strains and 1 rough strain of the bacteria. The other 3 rough strains were extremely sensitive to the opsonic system of normal mice.

UI	MeSH Term	Description	Entries
D007106	Immune Sera	Serum that contains antibodies. It is obtained from an animal that has been immunized either by ANTIGEN injection or infection with microorganisms containing the antigen.	Antisera,Immune Serums,Sera, Immune,Serums, Immune
D007711	Klebsiella pneumoniae	Gram-negative, non-motile, capsulated, gas-producing rods found widely in nature and associated with urinary and respiratory infections in humans.	Bacillus pneumoniae,Bacterium pneumoniae crouposae,Hyalococcus pneumoniae,Klebsiella pneumoniae aerogenes,Klebsiella rhinoscleromatis
D009895	Opsonin Proteins	Proteins that bind to particles and cells to increase susceptibility to PHAGOCYTOSIS, especially ANTIBODIES bound to EPITOPES that attach to FC RECEPTORS. COMPLEMENT C3B may also participate.	Opsonin,Opsonin Protein,Opsonins,Protein, Opsonin
D010587	Phagocytosis	The engulfing and degradation of microorganisms; other cells that are dead, dying, or pathogenic; and foreign particles by phagocytic cells (PHAGOCYTES).	Phagocytoses
D011511	Proteus	A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in the intestines of humans and a wide variety of animals, as well as in manure, soil, and polluted waters. Its species are pathogenic, causing urinary tract infections and are also considered secondary invaders, causing septic lesions at other sites of the body.
D011817	Rabbits	A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes.	Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D001770	Blood Bactericidal Activity	The natural bactericidal property of BLOOD due to normally occurring antibacterial substances such as beta lysin, leukin, etc. This activity needs to be distinguished from the bactericidal activity contained in a patient's serum as a result of antimicrobial therapy, which is measured by a SERUM BACTERICIDAL TEST.	Activities, Blood Bactericidal,Activity, Blood Bactericidal,Bactericidal Activities, Blood,Bactericidal Activity, Blood,Blood Bactericidal Activities
D003165	Complement System Proteins	Serum glycoproteins participating in the host defense mechanism of COMPLEMENT ACTIVATION that creates the COMPLEMENT MEMBRANE ATTACK COMPLEX. Included are glycoproteins in the various pathways of complement activation (CLASSICAL COMPLEMENT PATHWAY; ALTERNATIVE COMPLEMENT PATHWAY; and LECTIN COMPLEMENT PATHWAY).	Complement Proteins,Complement,Complement Protein,Hemolytic Complement,Complement, Hemolytic,Protein, Complement,Proteins, Complement,Proteins, Complement System
D003298	Coombs Test	A test to detect non-agglutinating ANTIBODIES against ERYTHROCYTES by use of anti-antibodies (the Coombs' reagent.) The direct test is applied to freshly drawn blood to detect antibody bound to circulating red cells. The indirect test is applied to serum to detect the presence of antibodies that can bind to red blood cells.	Anti-Human Globulin Consumption Test,Antiglobulin Consumption Test,Antiglobulin Test,Coombs' Test,Antihuman Globulin Consumption Test,Direct Antiglobulin Test,Direct Coombs Test,Indirect Antiglobulin Test,Indirect Coombs Test,Anti Human Globulin Consumption Test,Antiglobulin Consumption Tests,Antiglobulin Test, Direct,Antiglobulin Test, Indirect,Antiglobulin Tests,Antiglobulin Tests, Direct,Antiglobulin Tests, Indirect,Consumption Test, Antiglobulin,Consumption Tests, Antiglobulin,Coomb Test,Coomb's Test,Coombs Test, Direct,Coombs Test, Indirect,Direct Antiglobulin Tests,Indirect Antiglobulin Tests,Test, Antiglobulin,Test, Antiglobulin Consumption,Test, Coombs,Test, Coombs',Test, Direct Antiglobulin,Test, Direct Coombs,Test, Indirect Antiglobulin,Test, Indirect Coombs,Tests, Antiglobulin,Tests, Antiglobulin Consumption,Tests, Direct Antiglobulin,Tests, Indirect Antiglobulin
D004926	Escherichia coli	A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.	Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli