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[A study on oxidative DNA damage and lipid peroxidation in patients with tuberculous pleurisy]

Wei Liu1, Xiao-ju Liu, Qin Yu

  • 1Department of Respiratory Diseases, First Affiliated Hospital of Lanzhou Medical College, Lanzhou 730000, China.

Zhonghua Jie He He Hu Xi Za Zhi = Zhonghua Jiehe He Huxi Zazhi = Chinese Journal of Tuberculosis and Respiratory Diseases
|January 15, 2004
PubMed
Abstract

Insights

Tuberculous pleurisy patients exhibit oxidative stress, with higher DNA damage and lipid peroxidation. Their total antioxidative capacity is inadequate, especially within the pleural cavity, indicating an imbalance.

Area of Science:

  • Biochemistry
  • Immunology
  • Molecular Biology

Context:

  • Tuberculous pleurisy is an inflammatory condition affecting the pleura.
  • Oxidative stress plays a role in various inflammatory diseases.
  • Understanding oxidative stress markers can aid in disease management.

Purpose:

  • To investigate mononuclear cell oxidative DNA damage and lipid peroxidation in tuberculous pleurisy.
  • To assess total antioxidative capacity (TAC) in patients with tuberculous pleurisy.
  • To correlate oxidative stress markers with disease status.

Summary:

  • Patients with tuberculous pleurisy showed significantly higher mononuclear cell DNA damage (comet percentage) in pleural effusion compared to peripheral blood.
  • Elevated levels of malondialdehyde (MDA), a marker of lipid peroxidation, were observed in patients' peripheral blood.
  • Total antioxidative capacity (TAC) was significantly lower in both pleural effusion and blood plasma of patients compared to healthy controls, with a particularly pronounced reduction in the pleural cavity.

Impact:

  • The findings reveal an oxidation-antioxidation imbalance, indicative of oxidative stress, in tuberculous pleurisy.
  • Inadequate total antioxidative capacity, especially in the pleural cavity, is a key feature of the disease.
  • This study highlights the potential of oxidative stress markers for understanding the pathophysiology of tuberculous pleurisy.

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