Effect of Neurosteroid Modulation on Global Ischaemia-Reperfusion-Induced Cerebral Injury in Mice.
10.4196/kjpp.2013.17.6.485
- Author:
Amarjot Kaur GREWAL
1
;
Amteshwar Singh JAGGI
;
Avtar Chand RANA
;
Nirmal SINGH
Author Information
1. Rayat and Bahra Institute of Pharmacy, Sahauran, Mohali-140104, Punjab, India.
- Publication Type:Original Article
- Keywords:
Carbamazepine;
Global-ischaemia-reperfusion injury;
Indomethacin;
Mexiletine;
Neurosteroids
- MeSH:
Animals;
Carbamazepine;
Carotid Arteries;
Hand Strength;
Indomethacin;
Mexiletine;
Mice*;
Neuroprotective Agents;
Neurotransmitter Agents;
Reperfusion;
Sodium Channels
- From:The Korean Journal of Physiology and Pharmacology
2013;17(6):485-491
- CountryRepublic of Korea
- Language:English
-
Abstract:
The present study was designed to investigate the putative effect of neurosteroid modulation on global ischaemia-reperfusion-induced cerebral injury in mice. Bilateral carotid artery occlusion followed by reperfusion, produced a significant rise in cerebral infarct size along with impairment of grip strength and motor coordination in Swiss albino mice. Administration of carbamazepine (16 mg/kg, i.p.) before global cerebral ischaemia significantly attenuated cerebral infarct size and improved the motor performance. However, administration of indomethacin (100 mg/kg, i.p.) attenuated the neuroprotective effect of carbamazepine. Mexiletine (50 mg/kg, i.p.) did not produce significant neuroprotective effect. It may be concluded that the neuroprotective effect of carbamazepine may be due to increase in synthesis of neurosteroids perhaps by activating enzyme (3alpha HSD) as indomethacin attenuated the neuroprotective effect of carbamazepine. The sodium channel blocking effect of carbamazepine may not be involved in neuroprotection as mexiletine, a sodium channel blocker, did not produce significant neuroprotective effect.
