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Autologous Blood Injection to Model Spontaneous Intracerebral Hemorrhage in Mice
Published on: August 24, 2011
Intracerebral hemorrhage in complement C3-deficient mice.
1Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, Michigan 48109-0532, USA.
Acta Neurochirurgica. Supplement
|May 5, 2006
Summary
Complement C3 deficiency reduces brain swelling and behavioral deficits after intracerebral hemorrhage (ICH) in mice. This suggests complement C3 plays a key role in ICH-induced brain injury.
Area of Science:
- Neuroscience
- Immunology
Background:
- Intracerebral hemorrhage (ICH) triggers the complement cascade, exacerbating brain damage.
- Complement C3 is a central component of this cascade and its role in ICH is investigated.
Purpose of the Study:
- To investigate the impact of complement C3 deficiency on brain damage following ICH.
- To assess brain edema, behavioral deficits, and molecular markers in C3-deficient mice post-ICH.
Main Methods:
- Male C3-deficient and C3-sufficient mice underwent autologous whole blood infusion into the basal ganglia to induce ICH.
- Brain water content and behavioral tests (forelimb use asymmetry, corner turn) were assessed.
- Heme oxygenase-1 (HO-1) expression was measured via Western blot and immunohistochemistry.
Main Results:
- C3-deficient mice exhibited significantly reduced brain water content in the ipsilateral basal ganglia 3 days post-ICH.
- Forelimb use asymmetry deficits were significantly lower in C3-deficient mice compared to controls.
- Heme oxygenase-1 (HO-1) levels were significantly decreased in C3-deficient mice.
Conclusions:
- Intracerebral hemorrhage induces less brain edema and behavioral impairments in complement C3-deficient mice.
- These findings highlight complement C3 as a critical mediator of brain injury following ICH.
