Biochemical evaluation of focal non-reperfusion cerebral ischemia by middle cerebral artery occlusion in rats

Benedicto Oscar Colli, Daniela Pretti da Cunha Tirapelli, Carlos Gilberto Carlotti Jr, Luiza da Silva Lopes, Luis Fernando Tirapelli
2008 Arquivos de Neuro-Psiquiatria  
Cerebral ischemia is an important event in clinical and surgical neurological practice since it is one of the diseases that most compromise the human species. In the present study 40 adult rats were submitted to periods of focal ischemia of 30, 60 and 90 min without reperfusion and animals submitted to a sham procedure were used as controls. We analyzed the levels of ATP, malondialdehyde and caspase-3. No significant differences in the biochemical measurements were observed between the right
more » ... etween the right and left brain hemispheres of the same animal in each experimental group. Reduced ATP levels were observed after the three periods of ischemia compared to the sham group. No significant increase in malondialdehyde or caspase-3 levels was observed. Despite significant changes in ATP levels, the results indicated cell viability in the ischemic region as shown by the low rates of lipid peroxidation and apoptosis, findings probably related to the lack of reperfusion.
doi:10.1590/s0004-282x2008000500023 pmid:18949271 fatcat:zxd2apddmve4rf67nnwlmavl2e