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The D(1) dopamine receptor (D(1)R) has been proposed to form a hetero-oligomer with the D(2) dopamine receptor (D(2)R), which in turn results in a complex that couples to phospholipase C-mediated intracellular calcium release. We have sought to elucidate the pharmacology and mechanism of action of this putative signaling pathway. Dopamine dose-response(More)
Dyslexia is a common heterogeneous disorder with a significant genetic component. Multiple studies have replicated the evidence for linkage between variously defined phenotypes of dyslexia and chromosomal regions on 15q21 (DYX1) and 6p22.2 (DYX2). Based on association studies and the possibility for functional significance of several polymorphisms,(More)
DBH is a candidate gene in Parkinson's disease (PD) and contains a putative functional polymorphism (-1021C-->T) that has been reported to modify PD susceptibility. We examined -1021C-->T in a sample of 1,244 PD patients and 1,186 unrelated control subjects. There was no significant difference in allele (p = 0.14) or genotype (p = 0.26) frequencies between(More)
(−)-Stepholidine is a tetrahydroberberine alkaloid that is known to interact with dopamine receptors and has also been proposed as a novel antipsychotic agent. Its suggested novelty lies in the fact that it has been proposed to have D1-like receptor agonist and D2-like receptor antagonist properties. Thus, it might be effective in treating both positive and(More)
DBH is a candidate gene in Parkinson's disease (PD) and contains a putative functional polymorphism (-1021C3 T) that has been reported to modify PD susceptibility. We examined Ϫ1021C3 T in a sample of 1,244 PD patients and 1,186 unrelated control subjects. There was no significant difference in allele (p ϭ 0.14) or genotype (p ϭ 0.26) frequencies between(More)
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