Dopamine receptor D2
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چکیده
Dopamine receptor D2, also known asD2R, is a protein that, in humans, is encoded by the DRD2 gene.The dopamine D2 receptor was discovered in 1975 by Philip Seeman who had named it as the antipsychotic/dopamine receptor [1] The dopamine D2 receptor is the main receptor for all antipsychotic drugs. Any drug that does not interfere with dopamine action at the D2 receptor does not have an antipsychotic action.
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Modulatory Effects of Dopamine D2 Receptors on Spreading Depression in Rat Somatosensory Neocortex
Introduction: Spreading depression (SD) is a propagating wave of depolarization followed by depression of the neuroglial activities and can modulate extracellular dopamine concentrations in the neocortex. It has been shown that the dopaminergic system plays a role in migraine. SD has been suggested as a critical phenomenon in the pathophysiology of migraine. The aim of this study was to investi...
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Introduction: Stimulation or inactivation of the lateral hypothalamus (LH) produces antinociception. Studies showed a role for the ventral tegmental area (VTA) in the antinociception induced by LH chemical stimulation through the orexinergic receptors. In this study, we assessed the role of intra-VTA dopamine D1 and D2 receptors in antinociceptive effects of cholinergic agonist, carbachol, m...
متن کاملThe Effects of Dopamine Receptor Agents on Swim Stress-Induced Inhibition of Naloxone-Induced Jumping Behavior in Morphine-Dependent Mice
In the present study, interactions of dopamine receptor agonists and antagonists with water swimming stress (WSS) on naloxone-induced jumping in morphine-dependent mice were examined. Mice were rendered dependent as described in the methods section. The opioid receptor antagonist, naloxone (1 mg/kg), was injected to elicit jumping (as a withdrawal sign). The first group exposed to WSS in the pr...
متن کاملEffects of Pretreatment With Ginseng Extract on Dopamine D2 Receptor Analgesi
Introduction: The ginseng extract is an herb that has been used for many purposes such as analgesic effect. Dopamine D2 receptors are involved in the regulation of pain in humans. Therefore, the present investigation aims to study how pretreatment with aqueous-alcoholic extract of ginseng can affect dopamine D2 receptors’ pain sensitivity. Methods: We used 45 adult male rats weighing 250±20 fo...
متن کاملThe Effects of Dopamine Receptor Agents on Swim Stress-Induced Inhibition of Naloxone-Induced Jumping Behavior in Morphine-Dependent Mice
In the present study, interactions of dopamine receptor agonists and antagonists with water swimming stress (WSS) on naloxone-induced jumping in morphine-dependent mice were examined. Mice were rendered dependent as described in the methods section. The opioid receptor antagonist, naloxone (1 mg/kg), was injected to elicit jumping (as a withdrawal sign). The first group exposed to WSS in the pr...
متن کاملSurvey on the interaction effect of dopamine D2 receptor antagonist on morphine-induced polycystic ovary syndrome in rat
Background and Objective: Polycystic ovary syndrome (PCOS) is one of the most common endocrine and metabolic disorders in premenopausal women. Opioid drugs, including morphine are effective inducers of the PCOS. Hyperprolactinemia also increases the likelihood of this complication. The dopamine, the inhibitor of prolactin secretion, has receptors in the ovarian tissue. In this study, metoclopra...
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