VORTIOXETINE IS A NEW MULTIMODAL ACTION ANTIDEPRESSANT WITH TWO TYPES OF ACTION: serotonin transporter (SERT) blockade and a strong affinity for several serotoninergic receptors. It is an antagonist of the 5-HT3 and 5-HT7 receptors, a partial agonist of 5-HT1B, and an agonist of 5-HT1A. Its combined action on SERT and four subtypes of serotoninergic receptors increases the extracellular concent...

Effect of ondansetron (5-HT3-receptor antagonist) was studied on the working memory deficits induced by scopolamine, a muscarinic receptor antagonist in rats using a three-panel runway apparatus. Varying doses of scopolamine (0.1-0.56mg/kg, ip) were administered alone or in combination with ondansetron (0.01-1.0 mg/kg, ip) and memory errors and latency period of the session were recorded on a t...

Metabotropic glutamate receptors (mGluR) are implicated in long-term memory storage. mGluR-I and mGluR-II antagonists impede various forms of learning and long-term potentiation (LTP) in animals. Despite the evidence linking mGluR to learning mechanisms, their role in mossy fiber-CA3 long-term potentiation (LTP) is not yet clear. To explain the involvement of mGluR-I in memory mechanisms, we ex...

BNST: bed nucleus of the stria terminalis; CRF: corticotropin releasing factor; VTA: ventral tegmental area Recommended journal section: Neuropharmacology This article has not been copyedited and formatted. The final version may differ from this version. ABSTRACT Stress can trigger relapse of drug use in recovering cocaine addicts and reinstatement in rodent models through mechanisms that appea...

Oxytocin (OT, 0.10 mg/kg, sc) impaired retention of a one-trial step-through inhibitory avoidance task when injected into male Swiss mice 10 min after training, as indicated by retention performance 48 h later. In contrast, the immediate post-training administration of the putative oxytocin receptor antagonist d(CH2)5[Tyr(Me), Thr4, Thy-NH2] OVT (AOT, 0.30 mg/kg, sc) significantly enhanced rete...

The antinociceptive effects of MDMA and morphine were examined in rats using the tail-flick and hot-plate analgesiometric tests. MDMA, in the dose range of 1.5-6.0 mg/kg IP, produced a dose-dependent elevation in hot-plate latency, but did not elevate tail-flick latency. In contrast, morphine (2-8 mg/kg, IP) produced analgesia on both the tail-flick and hot-plate tests in a dose-dependent manne...

Prostacyclin receptor (IP) and peroxisome proliferator-activated receptor-gamma (PPARγ) are both potential targets for treatment of pulmonary arterial hypertension (PAH). Expression of IP and PPARγ decreases in PAH, suggesting that screening of dual agonists of IP and PPARγ might be an efficient method for drug discovery. Virtual screening (VS) of potential IP-PPARγ dual-targeting agonists was ...

results all doses of g. vitellinum extract induced anti-nociception activity during the first and second phases of the formalin test. the extract showed a significant (p < 0.05) dose-related inhibition during the first phase compared to the control group. in the second phase of the formalin test, the extract showed analgesic activity comparable to the effect of morphine. in pre-treatment with n...

1. We have compared the antagonist activity of trinitrophenyl-ATP (TNP-ATP) and diinosine pentaphosphate (Ip(5)I) on recombinant P2X receptors expressed in Xenopus oocytes with their actions at native P2X receptors in sensory neurones from dorsal root and nodose ganglia. 2. Slowly-desensitizing responses to alpha,beta-methylene ATP (alpha,beta-meATP) recorded from oocytes expressing P2X(2/3) re...

Oxidative stress has been implicated in intra-abdominal adhesion formation. Substance P, a neurokinin-1 receptor (NK-1R) ligand, facilitates leukocyte recruitment and reactive oxygen species (ROS) generation. We have shown in a rat model of adhesion formation that intraperitoneal administration of a NK-1R antagonist at the time of abdominal operation reduces postoperative adhesion formation. Th...