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Circulating immune complexes in tuberculosis--an indicator of activity

G Bajaj1, A Rattan, P Ahmad

  • 1Department of Pediatrics, J.N. Medical College, A.M.U., Aligarh.

Indian Journal of Pediatrics
|March 1, 1990
PubMed

Insights

Circulating immune complexes (CIC) were found in 68% of children with tuberculosis, significantly higher than controls. CIC levels decreased markedly with antitubercular therapy, indicating treatment effectiveness.

Area of Science:

  • Pediatrics
  • Immunology
  • Infectious Diseases

Background:

  • Circulating immune complexes (CIC) are implicated in various inflammatory conditions.
  • Tuberculosis (TB) is a significant global health challenge, particularly in pediatric populations.
  • The role of CIC in pediatric tuberculosis requires further elucidation.

Purpose of the Study:

  • To investigate the prevalence of CIC in children diagnosed with tuberculosis.
  • To assess the correlation between CIC levels and different types of tuberculosis.
  • To evaluate the impact of antitubercular therapy on CIC levels in pediatric TB patients.

Main Methods:

  • PEG assay was utilized to quantify CIC levels.
  • 100 children with tuberculosis and 30 age-matched healthy controls were enrolled.
  • CIC levels were measured before, and at one and three months after initiating antitubercular therapy.

Main Results:

  • CIC were detected in 68% of children with tuberculosis versus 3.3% in controls.
  • Miliary tuberculosis showed the highest CIC positivity rate (100%).
  • Antitubercular therapy led to a significant reduction in CIC positivity to 6.1% at one month and 0% at three months.

Conclusions:

  • Elevated CIC levels are a significant finding in pediatric tuberculosis.
  • CIC levels correlate with tuberculosis type and decrease with effective treatment.
  • CIC may serve as a potential biomarker for monitoring tuberculosis treatment response in children.

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