نتایج جستجو برای: dopamine transporter
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Homeothermal animals, such as mammals, maintain their body temperature by heat generation and heat dissipation, while poikilothermal animals, such as insects, accomplish it by relocating to an environment of their favored temperature. Catecholamines are known to regulate thermogenesis and metabolic rate in mammals, but their roles in other animals are poorly understood. The fruit fly, Drosophil...
Inflammation is a common feature of Parkinson Disease and other neurodegenerative disorders. Hypochlorous acid (HOCl) is a reactive oxygen species formed by neutrophils and other myeloperoxidase-containing cells during inflammation. HOCl chlorinates the amine and catechol moieties of dopamine to produce chlorinated derivatives collectively termed chlorodopamine. Here, we report that chlorodopam...
Methylphenidate (Ritalin) is one of the most commonly abused prescription drugs. It is a psychostimulant that inhibits the dopamine and norepinephrine transporters with high affinity. In mice, methylphenidate stimulates locomotor activity, is self-administered, and produces conditioned place preference, typical properties of an addictive drug. We have generated a knockin mouse line bearing a mu...
The human dopamine transporter (hDAT) belongs to the solute carrier 6 (SLC6) gene family. Point mutations in hDAT (SLC6A3) have been linked to a syndrome of dopamine transporter deficiency or infantile dystonia/parkinsonism. The mutations impair DAT folding, causing retention of variant DATs in the endoplasmic reticulum and subsequently impair transport activity. The folding trajectory of DAT i...
The dopamine transporter (DAT) removes dopamine from the extracellular milieu and is potently inhibited by number of psychoactive drugs, including cocaine, amphetamines, and methylphenidate (Ritalin). Multiple lines of evidence demonstrate that protein kinase C (PKC) down-regulates dopamine transport, primarily by redistributing DAT from the plasma membrane to endosomal compartments, although t...
246 words Introduction: 651 words Discussion: 1498 words Abbreviations: PMAT, plasma membrane monoamine transporter; SLC, solute carrier family; OCT, organic cation transporter; ENT, equilibrative nucleoside transporter; MPP, 1-methyl-4phenylpyridinium; DAT, dopamine transporter; SERT, serotonin transporter; CNS, central nervous system; MPTP, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine; TEA, t...
Gene polymorphisms of the 3' untranslated region (3'-UTR) of the dopamine transporter (DAT1), Dopamine receptor exon 3 D4 variable number tandem repeat (DRD4VNTR), nicotinic acetylcholine receptor alpha 4 subunit (CHRNA4) and serotonin transporter promoter (SLC6A4-5HTTLPR) are under consideration as potential risk factors for attention-deficit/hyperactivity disorder (ADHD). A post-hoc attempt w...
The in vivo study of receptor binding potential in the human brain is made possible by positron emission tomography (PET) imaging. Here we review PET studies of neuroreceptor function in mood disorders - specifically, major depressive disorder (MDD) and bipolar disorder (BD). We concentrate on the most widely studied receptors of the serotonergic and dopaminergic systems. Specifically, the sero...
Impulsivity is a multidimensional construct, including impulsive decision-making and impulsive action, representing relatively independent neurocircuitries. ADHD is treated with methylphenidate, a drug that binds to dopamine transporters. This study in 24 adult male patients with ADHD shows that dopamine transporter occupancy by methylphenidate in the putamen correlates with improvements in cog...
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