objective(s) several lines of evidence indicate that neuropeptides exhibit protective properties against gastroduodenal ulcers. neurotensin, a gut-brain neuropeptide, is implicated in a number of physiological processes in the central nervous system and peripheral tissues including gastrointestinal tract. in the present study, we aimed to investigate the gastroprotective potential of either per...

objective(s): targeting the neuropeptide systems has been shown to be useful for the development of more effective antipsychotic drugs. neurotensin, an endogenous neuropeptide, appears to be involved in the mechanism of action of antipsychotics. however, the available data provide conflicting results and the mechanism(s) by which antipsychotics affect brain neurotensin neurotransmission have no...

results celecoxib reduced the pain behavior in both phases of the formalin test, but this antinociceptive effect was a dose-dependent manner in the late phase. rimonabant alone induced hyperalgesia as compared with the control group and pretreatment of rats with rimonabant reversed the analgesic activity of celecoxib. conclusions antinociceptive effect of celecoxib may be mediated partly throug...

Cannabinoid receptors (nomenclature as agreed by the NC-IUPHAR Subcommittee on Receptors [119]) are activated endogenous ligands that include N-arachidonoylethanolamine (anandamide), N-homo-γ-linolenoylethanolamine, N-docosatetra-7,10,13,16-enoylethanolamine and 2-arachidonoylglycerol. Potency determinations of agonists at these complicated possibility differential susceptibility to enzymatic c...

Objective(s) Several lines of evidence indicate that neuropeptides exhibit protective properties against gastroduodenal ulcers. Neurotensin, a gut-brain neuropeptide, is implicated in a number of physiological processes in the central nervous system and peripheral tissues including gastrointestinal tract. In the present study, we aimed to investigate the gastroprotective potential of either p...

Endocannabinoid (ECB) system plays a vital role in responses to stress. Moreover, ECB and its receptors cause anti-inflammatory, anti-oxidative and neuroprotective effects by modulating neuronal, glial and endothelial cell functions. A number of studies have demonstrated ECB system notably defects in neurotraumatic and neurodegenerative diseases like epilepsy, TBI, Alzheimer’s disease and...

Psychoactive effects of cannabinoids are thought to be mediated, at least in part, by suppression of both glutamate and GABA release via CB1 cannabinoid receptor. Two types of cannabinoid receptor (CB1 and CB2) have been cloned so far. The CB1 receptors are abundantly expressed in the nervous system, whereas CB2 receptors are limited to lymphoid organs (Matsuda et al., 1990; Munro et al., 1993)...

CB1 cannabinoid (CB1) and D2 dopamine (D2) receptors are known to couple to the G protein G i/o. It has been reported that concurrent activation of D2 receptors and CB1 receptors, in primary striatal neuronal culture, promotes functional CB1 receptor coupling to G s resulting in elevations in intracellular cyclic AMP levels. We now report that in the absence of D2 receptors, acute activation of...

The cannabinoid CB1 receptor has gained much attention as a potential pharmacotherapeutic target in various neurodegenerative diseases including Alzheimer's disease (AD). However, the relation of CB1 receptors to cognitive function in AD is at present unclear. In this study, postmortem brain tissues from a cohort of prospectively assessed, neuropathologically confirmed AD patients and aged cont...

Mice devoid of CB1 cannabinoid receptors (CB1-/mice) provide a unique opportunity to further investigate the role of CB1 receptors in exocannabinoid and endocannabinoid effects. CB1-/mice (N=18) and their wild type littermates (CB1+/+ mice; N=12) were placed in standard mouse operant chambers and trained to lever press under a fixed-ratio 10 schedule of reinforcement. When stable lever press re...