Elmira Ghasemi
Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
[ 1 ] - Repeated injections of orexin-A developed behavioral tolerance to its analgesic effects in rats
Objective(s):Reduction of pharmacological effectiveness or tolerance appears following repeated administration of many analgesic drugs. We investigated tolerance to anti-nociceptive effects of orexin-A, an endogenous potent analgesic peptide using the hot-plate test.Materials and Methods:Orexin-A was microinjected ICV (intracerebroventricular) with an interval of 12 hr for 7 continuous days and...
[ 2 ] - Chronic heterogeneous sequential stress increases formalin-induced nociceptive
Abstract Introduction: Chronic heterogeneous stress may be better for evaluation of the effect of chronic stress situations on the nociceptive behaviour. The present study investigated the effects of chronic heterogeneous sequential stress on thermal-induced nociception and formalin induced pain behavior in rats. Methods: In the present study, adult rats (220-300 g) were used. Animals were ...
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