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[Pathogenicity expressed by inhibition of the Pasteur effect]
Revista De Igiena, Bacteriologie, Virusologie, Parazitologie, Epidemiologie, Pneumoftiziologie. Bacteriologia, Virusologia, Parazitologia, Epidemiologia
|April 1, 1977
Summary
Inhibition of the Pasteur effect, a key metabolic indicator, is directly linked to the pathogenicity and toxicity of various microbial agents and toxins. This finding provides a metabolic measure for assessing disease-causing potential.
Area of Science:
- Microbiology
- Biochemistry
- Pathology
Context:
- The Pasteur effect, a phenomenon in cellular metabolism, is crucial for understanding energy production.
- Pathogenic microorganisms and their toxins can significantly disrupt normal cellular functions.
- Previous hypotheses suggested a link between the Pasteur effect and pathogenicity, but required further metabolic validation.
Purpose:
- To investigate the relationship between the Pasteur effect and the pathogenicity of various microbial toxins and infections.
- To establish metabolic criteria for quantifying pathogenicity and toxigenicity.
- To validate the hypothesis that Pasteur effect inhibition is a direct measure of toxicity.
Summary:
- Experiments demonstrate that tetanus exotoxin, Gram-negative endotoxins, and other microbial agents inhibit the Pasteur effect.
- This inhibition is proportional to the dose of the pathogenic agent or toxin.
- Metabolic hallmarks, including inhibited hyperlactacidaemia and altered organic to inorganic phosphorus ratios, serve as direct indices of pathogenicity.
Impact:
- Confirms that Pasteur effect inhibition is a metabolic expression of pathogenicity and toxicity.
- Provides a quantifiable metabolic measure for assessing the virulence of infectious agents and toxins.
- Explains profound alterations in the Pasteur effect observed in infectious and endotoxinic shock states.