5 hydroxytryptamine/cannabis

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Anandamide, an endogenous cannabinoid receptor ligand, also interacts with 5-hydroxytryptamine (5-HT) receptor.

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Interactions of anandamide (N-arachidonylethanolamide), an endogenous compound for cannabinoid receptors, with the receptors for 5-hydroxytryptamine (5-HT), benzodiazepine, and gamma-aminobutyric acid(A) (GABA[A]) receptors in bovine synaptic membrane were examined. Anandamide decreased the 5-HT

The effects of chronic cannabis treatment upon brain 5-hydroxytryptamine, plasma corticosterone and aggressive behavior in female rats with different hormonal status.

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Ovariectomized rats, chronically treated with cannabis extract or control solution, were given different hormonal treatments. Results indicated that both cannabis-treated and estrogen-treated animals were more aggressive than controls. Furthermore, aggressiveness was virtually abolished when

The effects of chronic cannabis treatment on the aggressive behavior and brain 5-hydroxytryptamine levels of rats with different temperaments.

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Long-term fluoxetine treatment modulates cannabinoid type 1 receptor-mediated inhibition of adenylyl cyclase in the rat prefrontal cortex through 5-hydroxytryptamine 1A receptor-dependent mechanisms.

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Increasing data indicate that brain endocannabinoid system plays a role in the effects of antidepressant medications. Here we examined the effect of in vivo exposure to the selective serotonin uptake inhibitor fluoxetine on cannabinoid type 1 (CB(1)) receptor density and functionality in the rat

The influence of ACEA--a selective cannabinoid CB1 receptor agonist on whole blood and platelet-poor plasma serotonin concentrations.

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Through the CB1 receptor cannabinoids modulate serotonin (5-hydroxytryptamine, 5-HT) release in the central nervous system which is connected with some of their pharmacological effects, especially antidepressant activity. 5-HT has many important physiological functions also in the periphery,

The inhibitory effect of combination treatment with leptin and cannabinoid CB1 receptor agonist on food intake and body weight gain is mediated by serotonin 1B and 2C receptors.

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Previous studies reported that the co-injection of leptin and cannabinoid CB1 receptor antagonists reduces food intake and body weight in rats, and this effect is more profound than that induced by these compounds individually. Additionally, serotonin mediates the effects of numerous anorectic

Human platelets bind and degrade 2-arachidonoylglycerol, which activates these cells through a cannabinoid receptor.

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The endocannabinoid 2-arachidonoylglycerol (2-Delta(4)Ach-Gro) activates human platelets in platelet-rich plasma at physiological concentrations. The activation was inhibited by selective antagonists of CB(1) and CB(2) cannabinoid receptors, but not by acetylsalicylic acid. Human platelets can

Effect of cannabinoids on neural transmission in rat gastric fundus.

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The purpose of this study was to examine the possible role of cannabinoids on the neuromuscular function of rat gastric fundus. In addition to possible direct effects on smooth muscle, the influence of cannabinoids on contractile (cholinergic) and relaxant (non-adrenergic, non-cholinergic (NANC))

Effects of coadministration of cannabinoids and morphine on nociceptive behaviour, brain monoamines and HPA axis activity in a rat model of persistent pain.

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The antinociceptive effects of Delta9-tetrahydrocannabinol (Delta9-THC) have been widely described; however, its therapeutic potential may be limited by secondary effects. We investigated whether coadministration of low doses of cannabinoids or cannabinoids and morphine produced antinociception in

Evidence for both inverse agonism at the cannabinoid CB1 receptor and the lack of an endogenous cannabinoid tone in the rat and guinea-pig isolated ileum myenteric plexus-longitudinal muscle preparation.

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OBJECTIVE Cannabinoid receptor agonists reduce intestinal propulsion in rodents through the CB(1) receptor. In addition to its antagonistic activity at this receptor, rimonabant (N-(piperidino)-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-3-pyrazole-carboxyamide) alone augments intestinal

Evidence that MDMA ('ecstasy') increases cannabinoid CB2 receptor expression in microglial cells: role in the neuroinflammatory response in rat brain.

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3,4-Methylenedioxymethamphetamine (MDMA, 'ecstasy') produces selective long-lasting serotonergic neurotoxicity in rats. The drug also produces acute hyperthermia which modulates the severity of the neurotoxic response. In addition, MDMA produces signs of neuroinflammation reflected as microglial

Cannabinoid agonists induce relaxation in the bovine ophthalmic artery: evidences for CB1 receptors, nitric oxide and potassium channels.

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Glaucoma pathophysiology appears to involve vascular deficits, which may contribute to initiation and progression of the disease. Anandamide, the endogenous cannabinoid ligand, and WIN55212-2, a synthetic cannabinoid agonist, are able to evoke concentration-dependent relaxations in bovine ophthalmic

Cannabis extract, but not delta 1-tetrahydrocannabinol, inhibits human brain and liver monoamine oxidase.

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Mitochondrial monoamine oxidase (MAO) of human brain and liver was inhibited by low concentrations of cannabis extract (CE) and a cannabinoid fraction isolated from it. delta 1-Tetrahydrocannabinol (THC) did not elicit any inhibitory effect on the enzyme. The inhibition of MAO activity by CE and by

Differential effects of endogenous and synthetic cannabinoids on alpha7-nicotinic acetylcholine receptor-mediated responses in Xenopus Oocytes.

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The effects of endogenous and synthetic cannabinoid receptor agonists, including 2-arachidonoylglycerol (2-AG), R-methanandamide, WIN55,212-2 [4,5-dihydro-2-methyl-4(4-morpholinylmethyl)-1-(1-naphthalenylcarbonyl)-6H-pyrrolo[3,2,1ij]quinolin-6-one], and CP 55,940

Interactions among the cannabinoids in the antagonism of the abdominal constriction response in the mouse.

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The ability of delta 9-tetrahydrocannabinol (THC), cannabinol (CBN), cannabidiol (CBD), 11-OH THC and 8 alpha, 11-diOH THC to antagonise the abdominal constriction response in the mouse induced by formic acid, phenylquinone, 5-hydroxytryptamine, prostaglandin E1 (PGE1) and bradykinin was tested. THC

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