The neuroprotective effect of Sulindac after ischemia-reperfusion injury in rats.
OBJECTIVE
To investigate the neuroprotective effects of Sulindac on the hippocampal complex after global cerebral ischemia/reperfusion (I/R) injury in rats.


METHODS
Thirty one Sprague-Dawley rats were used, distributed into group I (sham) n:7 were used as control. For group II (n:8), III (n:8) and IV (n:8) rats, cerebral ischemia was performed via the occlusion of bilateral internal carotid artery for 45 minutes and continued with reperfusion process. 0.3 mL/kg/h 0.9 % sodium chloride was infused intraperitoneally to the Group II rats before ischemia, 5μg/kg/h/0.3 ml sulindac was infused intraperitoneally to the Group III rats before ischemia and 5μg/kg/h/0.3 ml sulindac was infused intraperitoneally to the Group IV rats after ischemia and before reperfusion process. The levels of MDA, GSH and MPO activity were measured in the left hippocampus tissue. The hippocampal tissue of all group members were taken for histopathological study.


RESULTS
The MDA and MPO levels increased from group I (control) to group II (I/R) (P<0.05) and decreased from group II (I/R) to group III (presulindac + I/R) and IV (postsulindac + I/R) (P<0.05). Beside these, the GSH levels decreased from group I (control) to group II (I/R) (P<0.05) and increased from group II (I/R) to group III (presulindac + I/R) and IV (postsulindac + I/R) (P<0.05).The number of apoptotic neurons increased from group I (control) to group II (I/R) (P<0.05) and decreased from group II (I/R) to group III (presulindac + I/R) and IV (postsulindac + I/R) (P<0.05).


CONCLUSIONS
The Sulindac may have neuroprotective effects on ischemic neural tissue to prevent the reperfusion injury after ischemia.
Department of Neurosurgery, Canakkale 18 March University, ,, Turkey.
Murat
M
Cosar
Department of Neurosurgery, Medeniyet University, Istanbul, Turkey.
Tuncay
T
Kaner
Department of Neurology, Istanbul University, Istanbul, Turkey.
Onder
O
Sahin
Department of Pediatrics, COMU, Canakkale, Turkey.
Naci
N
Topaloglu
Department of Neurosurgery, COMU, Canakkale, Turkey.
Mustafa
M
Guven
Department of Neurosurgery, COMU, Canakkale, Turkey.
Adem Bozkurt
AB
Aras
Department of Neurosurgery, COMU, Canakkale, Turkey.
Tarık
T
Akman
Department of Neurology, COMU, Canakkale, Turkey.
Adile
A
Ozkan
Department of Physiology, Health School, Trakya University, K?rklareli, Turkey.
Halil Murat
HM
Sen
Department of Physiology, Health School, Trakya University, K?rklareli, Turkey.
Gulsum
G
Memi
Department of Physiology, COMU, Canakkale, Turkey.
Mustafa
M
Deniz
D000818:Animals; D017209:Apoptosis; D002545:Brain Ischemia / Q000517:prevention & control; D016861:Cyclooxygenase Inhibitors / Q000494:pharmacology*; D004195:Disease Models, Animal; D005978:Glutathione / Q000032:analysis; D006624:Hippocampus / Q000098:blood supply* / Q000473:pathology; D007263:Infusions, Parenteral; D008315:Malondialdehyde / Q000032:analysis; D018696:Neuroprotective Agents / Q000494:pharmacology*; D018384:Oxidative Stress / Q000187:drug effects; D009195:Peroxidase / Q000032:analysis; D017207:Rats, Sprague-Dawley; D015427:Reperfusion Injury / Q000517:prevention & control*; D015203:Reproducibility of Results; D013467:Sulindac / Q000494:pharmacology*
D016861:Cyclooxygenase Inhibitors; D018696:Neuroprotective Agents; D013467:Sulindac; D008315:Malondialdehyde; D009195:Peroxidase; D005978:Glutathione