INT103878
From wiki-pain
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Sentences Mentioned In
Key: | Protein | Mutation | Event | Anatomy | Negation | Speculation | Pain term | Disease term |
Striatal and thalamic D2-receptor binding was measured at baseline, after a single oral dose (20 mg) of fluoxetine, and after repeated dosing (2 wk, 20 mg/d). | |||||||||||||||
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D2 receptor binding was determined by using [(11)C]raclopride as radioligand. | |||||||||||||||
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In Langerhans cells of the epidermis this binding induces the formation of PDG2 which then binds to a specific receptor (prostaglandin-D2-receptor-1). | |||||||||||||||
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Since the flush induced by niacin is primarily mediated through the interaction of prostaglandin D2 with a specific receptor (prostaglandin-D2-receptor-1) a selective antagonist of this receptor was developed (MK-0524, laropiprant).38,39 Laropiprant was initially developed as a treatment for allergic rhinitis.39,40 It is eliminated primarily after glucuronidation through the liver.41 A small part of laropiprant is metabolized through cytochromP450 3A4. | |||||||||||||||
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Opioids may produce changes in the BG including increases in D2 receptor binding [88]. | |||||||||||||||
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The results of analysis by PET and SPECT studies of striatal D2 receptor binding in humans are inconclusive. | |||||||||||||||
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Others have suggested differential processing of pain within the BG - a more dorsal DA D2 receptor-mediated neurotransmission in the caudate and putamen that correlates with subjective ratings of sensory and affective qualities of the pain, along with a more ventral system involving the NAc, is associated with emotional processing [135]. | |||||||||||||||
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Second, a disturbance in dopaminergic function seems to be observed in OCD, as supported by recent neuroimaging studies showing an increase in dopamine transporter binding along with lowered levels of dopaminergic D2 receptor binding in the basal ganglia of patients with OCD (Kim et al 2003; Denys et al 2004). | |||||||||||||||
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Second, a disturbance in dopaminergic function seems to be observed in OCD, as supported by recent neuroimaging studies showing an increase in dopamine transporter binding along with lowered levels of dopaminergic D2 receptor binding in the basal ganglia of patients with OCD (Kim et al 2003; Denys et al 2004). | |||||||||||||||
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In fact, the DA system undergoes extensive maturation and rearrangement until early adulthood: for example, DA innervation of terminal areas, such as the prefrontal cortex is not completed until late adolescence in the rat [168]; a reduced basal levels of DA and a reduced pool of readily releasable DA have been reported in adolescent rats [192]; D1 and D2 receptor binding in the striatum undergoes robust changes during adolescence as a consequence of extensive pruning of DA synapses [199]. | |||||||||||||||
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