Alterations in the dopamine system are hypothesized to influence the expression of social anxiety disorder (SAD) symptoms. However, molecular imaging studies comparing dopamine function between patients and control subjects have yielded conflicting results. Importantly, while all previous investigations focused on the striatum, findings from activation and blood flow studies indicate that prefr...

in this investigation wer studied the effect of dopaminergic system on the conflict behavior in rat, using vogel’s test. the related drugs were injected intraperitonealy (ip), and produced the following results:diazepam at doses of 0.5 and 1 mg/kg increased the lick –shock responses in the vogel’s thest. quinpirole (d2-agnosit), at doses of 0.1 and 10 mg/kg, increased the confict responses, whe...

OBJECTIVES To conduct a meta-analysis of randomized controlled trials evaluating the efficacy and drawbacks of limited (D1) versus extended lymphadenectomy (D2) for proven gastric adenocarcinoma. METHODS A search of Cochrane, Medline, PubMed, Embase, Science Citation Index and Current Contents electronic databases identified randomized controlled trials published in the English language betwe...

The D2-D3 expansion segments of the 28S ribosomal RNA (rRNA) were sequenced and compared to predict secondary structures for Hoplolaiminae species based on free energy minimization and comparative sequence analysis. The free energy based prediction method provides putative stem regions within primary structure and these base pairings in stems were confirmed manually by compensatory base changes...

BACKGROUND A randomized clinical trial was performed to compare D1 and D2 gastrectomy in specialized Western centres. This paper reports short-term results. METHOD A total of 267 patients with gastric cancer were randomly assigned to either a D1 or a D2 procedure in five specialized centres. Based on the findings of the phase II trial and published phase III trials, a prespecified non-inferio...

We have recently established and characterized cellular clones deriving from MDA-MB-231 breast cancer cells that express the human G(D3) synthase (GD3S), the enzyme that controls the biosynthesis of b- and c-series gangliosides. The GD3S positive clones show a proliferative phenotype in the absence of serum or growth factors and an increased tumor growth in severe immunodeficient mice. This phe...

Dopamine (DA) has long been implicated in impulsivity, but the precise mechanisms linking human variability in DA signaling to differences in impulsive traits remain largely unknown. By using a dual-scan positron emission tomography approach in healthy human volunteers with amphetamine and the D2/D3 ligand [18F]fallypride, we found that higher levels of trait impulsivity were predicted by dimin...

This paper is on the normal approximation of singular subspaces when noise matrix has i.i.d. entries. Our contributions are three-fold. First, we derive an explicit representation formula empirical spectral projectors. The neat and holds for deterministic perturbations. Second, calculate expected projection distance between true subspaces. method allows obtaining arbitrary k-th order distance. ...