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Humanized Mouse Model to Study Bacterial Infections Targeting the Microvasculature
11:40

Humanized Mouse Model to Study Bacterial Infections Targeting the Microvasculature

Published on: April 1, 2014

Simvastatin attenuates leukocyte recruitment in experimental bacterial meningitis

Frank Winkler1, Barbara Angele, Hans-Walter Pfister

  • 1Dept. of Neurology, University of Munich, Marchioninistr. 15, D-81377 Munich, Germany. Frank.Winkler@med.uni-muenchen.de

International Immunopharmacology
|January 10, 2009
PubMed

Insights

Simvastatin reduced central nervous system (CNS) inflammation in a mouse model of pneumococcal meningitis by decreasing leukocyte counts. However, it did not improve neurological scores or reduce intracranial pressure.

Area of Science:

  • Neuroscience
  • Pharmacology
  • Infectious Diseases

Background:

  • Sepsis and infections can benefit from statins' pleiotropic effects beyond cholesterol reduction.
  • Pneumococcal meningitis presents high morbidity and mortality despite antibiotic therapy.

Purpose of the Study:

  • To evaluate simvastatin's therapeutic potential in an animal model of pneumococcal meningitis.
  • To assess simvastatin's impact on CNS inflammation and disease complications.

Main Methods:

  • Mice were infected with live pneumococci and treated with vehicle or simvastatin (20 or 40 mg/kg).
  • Evaluations included clinical assessment, cerebrospinal fluid (CSF) leukocyte counts, intracranial pressure, bacterial titer, and blood-brain barrier integrity.

Main Results:

  • Simvastatin dose-dependently decreased CSF leukocyte counts, indicating reduced CNS inflammation.
  • Hypothermia was abolished in the high-dose simvastatin group (40 mg/kg).
  • Neurological scores, intracranial pressure, and blood-brain barrier breakdown were not significantly altered.

Conclusions:

  • Simvastatin attenuates CNS leukocyte recruitment in experimental pneumococcal meningitis.
  • Simvastatin may offer benefits in managing inflammatory responses during meningitis but does not resolve all pathological aspects.

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