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Infection And Immunity Journal
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Covers a wide area of topics, including: infections caused by pathogenic bacteria,
fungi, and unicellular parasites; ecology and epidemiology of pathogenic microbes;
virulence factors such as toxins and surface structures;
and nonspecific factors in host resistance and susceptibility to infection.
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Capacity of anaerobic bacteria from necrotic dental pulps to induce purulent infections.
Infect Immun. 1979 August; 25(2): 685–693.
by G K Sundqvist, M I Eckerbom, A P Larsson, and U T Sjogren
Combinations of bacteria isolated from the root canals of teeth with necrotic pulps
and periapical bone destruction were tested for their capacity to induce abscess
formation and transmissible infections when inoculated subcutaneously into guinea pigs.
Transmissible infections could be induced with combinations obtained from teeth with purulent
apical inflammation, but not with combinations from symptomless teeth with chronic
apical inflammation. All combinations which gave transmissible infections contained
strains of Bacteroides melaninogenicus or B. asaccharolyticus (formerly B. melaninogenicus
subsp. asaccharolyticus). The results suggest that purulent inflammation in the apical
region in certain cases may be induced by specific combinations of bacteria in the root
canal and that the presence of B. melaninogenicus or B. asaccharolyticus in such
combinations is essential. However, with one exception, the strains needed the
support of additional microorganisms to achieve pathogenicity.
The results indicate that Peptostreptococcus micros was also essential.
Histological sections of the lesions in the guinea pigs showed that all
bacterial combinations induced acute inflammation with an accumulation
of polymorphonuclear leukocytes and the formation of an abscess. However,
the presence of B. melaninogenicus or B. asaccharolyticus in the combinations
resulted in a failure of abscess resolution, with a gradually increaseing
accumulation of polymorphonuclear leukocytes.
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Medical and Environmental Aspects of Anaerobes
by B.I. Duerden, J.S. Brazier, W.G. Wade
The proceedings of a symposium of the (British) Society for Anaerobic Microbiology,
July 1991 at Cambridge. In 48 papers, researchers from a wide range of disciplines--medical,
veterinary, dental, industrial, nutritional, ecological--review findings and methods
of the latest research on anaerobic bacteria, which can live in very inhospitable
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environmental and ecological aspects, and recent changes in taxonomy.
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