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A Robust Pneumonia Model in Immunocompetent Rodents to Evaluate Antibacterial Efficacy against S. pneumoniae, H. influenzae, K. pneumoniae, P. aeruginosa or A. baumannii
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[The treatment of pneumonias in influenza using antioxidants]

M V Nagibina, E A Neĭfakh, V F Krylov

    Terapevticheskii Arkhiv
    |January 1, 1996
    PubMed

    Insights

    Lipid peroxidation (LPO) increased in severe pneumonia complicating influenza. Alpha-tocopherol treatment reduced LPO markers and improved patient outcomes, unlike Dibunol.

    Area of Science:

    • Biochemistry
    • Pathophysiology
    • Clinical Medicine

    Background:

    • Influenza complicated by pneumonia involves significant oxidative stress.
    • Lipid peroxidation (LPO) is a key marker of cellular damage in severe illness.
    • Serum levels of malondialdehyde (MDA) and general products of lipid peroxidation (GPL) indicate LPO activity.

    Purpose of the Study:

    • To investigate the role of LPO in patients with influenza complicated by pneumonia.
    • To evaluate the therapeutic effects of alpha-tocopherol and Dibunol on LPO and clinical outcomes.

    Main Methods:

    • Serum samples from patients were analyzed for MDA and GPL levels.
    • Clinical data and disease severity were recorded.
    • Patients received either alpha-tocopherol or Dibunol treatment.

    Main Results:

    • Significantly elevated MDA and GPL levels were observed during the acute phase, particularly in critically ill patients.
    • Alpha-tocopherol administration led to a marked reduction in MDA and GPL levels.
    • Alpha-tocopherol treatment correlated with a more pronounced clinical improvement compared to Dibunol.
    • Dibunol showed minimal impact on both LPO markers and clinical status.

    Conclusions:

    • Increased lipid peroxidation is a significant feature of severe influenza with pneumonia.
    • Alpha-tocopherol is effective in mitigating LPO and improving clinical recovery in these patients.
    • Dibunol appears less effective in managing LPO and associated clinical symptoms.

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