Results: TT treatment of diabetic rats reduced pain score only in chronic phase of the formalin test (p<0.05). Meanwhile, SS administration significantly reduced pain score only at chronic phase of the test (p<0.05). Regarding hot tail immersion test, diabetic rats showed a significant reduction in tail flick latency as compared to control ones (p<0.05). Although TT treatment of diabetic rats i...

Resveratrol has been widely investigated for its potential health properties, although little is known about its mechanism in vivo. Previous studies have indicated that resveratrol produces antinociceptive effects in mice. Calcium channels and calcium/caffeine-sensitive pools are reported to be associated with analgesic effect. The present study was to explore the involvement of Ca2+ channel an...

The responsiveness to noxious thermal, mechanical, and chemical stimuli was examined in adult rats that had been treated neonatally with capsaicin. A range of capsaicin doses was employed to determine whether the neurotoxicity of capsaicin to primary afferent fibers would be manifested behaviorally in a selective effect on nociceptive thresholds to specific stimuli. Animals were given 5 to 100 ...

Argyreia speciosa (Convolvuceae) is regarded as a ‘Rasayan’ drug in the ayurvedic system of medicine to cure diseases of nervous system. Sphearanthus indicus is known as nervine tonic and used for relief of pain in Indian traditional system of medicine. In the present study an attempt was made to evaluate the analgesic and anti-inflammatory activity of hydroalcoholic extract of Argyreia specios...

Extracts obtained from the petals of Rosa damascena (Rosaceae) are used in Iranian folk medicine as remedies for the treatment of some inflammatory diseases. In this study the hydroalcoholic extract and essential oil of the plant were investigated for its possible anti-inflammatory and analgesic activities. The extract was administered at the doses (p.o.) of 250, 500 and 1000 mg/kg and the dose...

OBJECTIVE We compared the effects of 2 sedative drugs, dexmedetomidine and midazolam, on motor performance and analgesic efficacy in a rat model. MATERIALS AND METHODS Rats were randomly divided into the following 4 groups on the basis of the treatment received. The first group received 83 µg/kg/min midazolam; the second, 1 µg/kg/min dexmedetomidine; the third, 83 µg/kg/min morphine; and the ...

In this study, we characterized the role of delta-1 and delta-2 opioid receptors in the ventromedial medulla (VMM) in the modulation of thermal nociception. Male Sprague-Dawley rats were prepared with an intracerebral guide cannula aimed at the nucleus raphe magnus or nucleus reticularis gigantocellularis pars alpha. Microinjection of the delta-1 opioid receptor agonist [D-Pen2,D-Pen5]enkephali...

INTRODUCTION Methadone has been used as a drug to detoxify opioid tolerance. Naloxane precipitated morphine withdrawal behaviours were attenuated by venlafaxine as an antidepressant. On the contrary, after detoxifying the opioids, spontaneous withdrawal syndrome may occur with pain sensitivity. Therefore the present study aimed to examine the effects of chronic methadone (70 mg/kg, in drinking ...

conclusions our findings support the role of nmdars in pregabalin antinociception, because the nmdar agonist, unlike the antagonist, decreased the antinociceptive effect of pregabalin, even if tail flick is not an adequate pain assessment method in this regard. background pregabalin as a new anticonvulsant has been used in different pain treatments. objectives the aim of this study was to inves...