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- Abazov, V. M., et al.
(author)
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Determination of the strong coupling constant from the inclusive jet cross section in pp collisions at s=1.96 TeV
- 2009
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In: PHYS REV D. - 1550-7998 .- 1550-2368. ; 80, s. 111107-
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Journal article (peer-reviewed)abstract
- We determine the strong coupling constant alpha(s) and its energy dependence from the p(T) dependence of the inclusive jet cross section in pp collisions at s=1.96 TeV. The strong coupling constant is determined over the transverse momentum range 50 < p(T)< 145 GeV. Using perturbative QCD calculations to order O(alpha(3)(s)) combined with O(alpha(4)(s)) contributions from threshold corrections, we obtain alpha(s)(M-Z)=0.1161(-0.0048)(+0.0041). This is the most precise result obtained at a hadron-hadron collider.
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| 3. |
- Oppenheimer, Federico, et al.
(author)
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Health-Related Quality of Life of Patients Receiving Low-toxicity Immunosuppressive Regimens:. A Substudy of the Symphony Study
- 2009
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In: Transplantation. - 1534-6080. ; 87:8, s. 1210-1213
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Journal article (peer-reviewed)abstract
- Objective. To evaluate health-related quality of life (HRQoL) in patients with different low-toxicity regimens post-transplantation. Methods. One hundred fifty-six patients were randomized to standard-dose cyclosporine A (CsA), mycophenolate mofetil, and corticosteroids or daclizumab induction, mycophenolate mofetil, and corticosteroids with a low dose of CsA, tacrolimus (Low-Tac), or sirolimus. SF-36 Health survey was completed at baseline, 3, 6, and 12 months. Results. There were no differences between groups in SF-36 at baseline or at month 12. Low-Tac showed higher scores at month 3 than standard-dose CsA and low dose of CsA. Patients with serum creatinine less than or equal to 1.5 mg/mL had better HRQoL at 6 and 12 months. Proportion of these patients was higher in Low-Tac at 6 months. Physical component summary of Patients increased during follow-up, but mental component summary did not. Patients with acute rejection showed lower mental component summary at 6 months. Conclusions. No HRQoL differences were identified among groups, but the low-dose Tac group showed the fastest improvement.
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- Sanchez, Diego, et al.
(author)
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Molecular interactions of the neuronal GPI-anchored lipocalin Lazarillo
- 2008
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In: Journal of Molecular Recognition. - : Wiley. - 1099-1352 .- 0952-3499. ; 21:5, s. 312-322
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Journal article (peer-reviewed)abstract
- Lazarillo, a glycoprotein involved in axon growth and guidance in the grasshopper embryo, is the only member of the lipocalin family that is attached to the cell surface by a GPI anchor. Recently, the study of Lazarillo homologous genes in Drosophila and mouse has revealed new functions in the regulation of lifespan, stress resistance and neurodegeneration. Here we report an analysis of biochemical properties of Lazarillo to gain insight into the molecular basis of its physiological function. Recombinant forms of the grasshopper protein were expressed in two different systems to test: (1) potential binding of several hydrophobic ligands; (2) protein-protein homophilic interactions; and (3) whether interaction with the function-blocking mAb 10E6 interferes with ligand binding. We tested 10 candidate ligands (retinoic acid, heme, bilirubin, biliverdin, ecdysterone, juvenile hormone, farnesol, arachidonic acid, linoleic acid and palmitic acid), and monitored binding using electrophoretic mobility shift, absorbance spectrum, and fluorimetry assays. Our work indicates binding to heme and retinoic acid, resulting in increased electrophoretic mobility, as well as to fatty acids, resulting in multimerization. Retinoic acid and fatty acids binding were confirmed by fluorescence titration, and heme binding was confirmed with absorbance spectrum assays. We demonstrate that Lazarillo oligomerizes in solution and can form clusters in the plasma membrane when expressed and GPI-anchored to the cell surface, however it is unable to mediate cell-cell adhesion. Finally, by ligand-mAb competition experiments we show that ligand-binding alone cannot be the key factor for Lazarillo to perform its function during axonal growth in the grasshopper embryo. Copyright (C) 2008 John Wiley & Sons, Ltd.
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