Opiates have complex effects on seizure thresholds as these substances have both anti and proconvulsive actions in the mammalian brain. A reduction of inhibitory synaptic activity or enhancement of excitatory synaptic activity would be expected to trigger a seizure. This study is designed to determine how morphine and naloxone affect seizures induced by a low Mg2+ perfusate in the whole, intact...

Several studies have demonstrated that nitric oxide (NO) is involved in hyperalgesia induced by NMDA activity in Morphine tolerance and NO synthase inhibitors can attenuate hyperalgesia in morphine tolerance. In addition, one of the possible mechanisms in morphine tolerance is reduction of GABA inhibitory effect. For this reason, we used GABA agonists (muscimol and baclofen) to investigate the ...

Several studies have demonstrated that nitric oxide (NO) is involved in hyperalgesia induced by NMDA activity in Morphine tolerance and NO synthase inhibitors can attenuate hyperalgesia in morphine tolerance. In addition, one of the possible mechanisms in morphine tolerance is reduction of GABA inhibitory effect. For this reason, we used GABA agonists (muscimol and baclofen) to investigate the ...

Patients undergoing total knee arthroplasty (TKA) report low satisfaction with postoperative pain control. The purpose of this study is to examine if there is a difference in post-operative pain for TKA patients without femoral nerve block receiving an intra-operative pericapsular injection of bupivacaine liposome suspension (EXPAREL; Pacira Pharmaceuticals, Inc., San Diego, California) versus ...

INTRODUCTION Considering the existing contradictions regarding effectiveness of intravenous (IV) lidocaine, especially in emergency department (ED), the present study was designed to compare the analgesic effect of IV lidocaine and morphine sulfate in pain management for extremity bone fractures. METHOD In this triple blind clinical trial, 15 to 65 year-old patients with extremity fractures a...

INTRODUCTION Renal colic can be managed by preventing the contraction movements of ureter muscles. By reducing acetylcholine in the nerve terminals, magnesium sulfate could be effective in this regard. The aim of this study is to investigate the effect of magnesium sulfate on acute renal colic pain relief. METHOD The present study was a double-blind clinical trial in which the patients suffer...

In France, during the 1990s, there have been some rapid developments in the treatment of opioid addiction with the introduction of legal substitution agents. Originally, some patients were treated with morphine sulfate, but this was superseded by high dose buprenorphine (Subutex(R)) and methadone. This resulted in those patients originally treated with morphine being transferred to either of th...

conclusions this study showed that, compared to simply increasing the dose of morphine, adding chloropromazine, promethazine, midazolam, and clinidine to morphine significantly controlled pain scores and increased treatment satisfaction in addicted patients without notable side effects. objectives the objective of this study was to evaluate the analgesic effects of adding clonidine, promethazin...

In the present study, the effects of excitation and inhibition of GABAA and GABAB receptor subtypes on the expression of morphine-induced conditioned place preference (CPP) were investigated. For this purpose, male Wistar rats (250-300 g) were used in the experiments. Five days after surgical cannulation in the ventral tegmental area (VTA), different doses of morphine were injected into the ani...