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[The significance of L-form mycobacteria in the development of pulmonary tuberculosis]
Vrachebnoe Delo
|March 1, 1990
Abstract:
It was established by means of bacteriological examination that L-forms of Mycobacterium tuberculosis are isolated in 42% of freshly detected cases with different clinical forms of tuberculosis of the respiratory organs. It was found that the isolated strains of microorganisms induce in guinea pigs a disease against the background of disorders of the general and specific immunological reactivity.
Insights
L-forms of Mycobacterium tuberculosis were found in 42% of new respiratory tuberculosis cases. These L-forms caused disease and immune system dysfunction in guinea pigs.
Area of Science:
- Microbiology
- Immunology
- Infectious Diseases
Background:
- Tuberculosis (TB) remains a significant global health challenge.
- The role of atypical bacterial forms, such as L-forms, in TB pathogenesis is not fully understood.
Purpose of the Study:
- To investigate the prevalence of Mycobacterium tuberculosis L-forms in newly diagnosed respiratory TB.
- To evaluate the pathogenicity of isolated L-forms in an animal model.
Main Methods:
- Bacteriological examination of clinical samples from patients with respiratory tuberculosis.
- Inoculation of isolated L-form strains into guinea pigs.
- Assessment of disease development and immunological reactivity in infected animals.
Main Results:
- L-forms of Mycobacterium tuberculosis were isolated from 42% of patients with newly detected respiratory tuberculosis.
- Inoculated guinea pigs developed disease.
- Significant disorders in general and specific immunological reactivity were observed in infected guinea pigs.
Conclusions:
- L-forms of Mycobacterium tuberculosis are prevalent in a significant proportion of new respiratory TB cases.
- These L-forms possess pathogenic potential, inducing disease and immune dysregulation in vivo.