T Background:Background: Clogging of biliary stents remains an important problem. In vitro studiess have shown less sludge formation in Teflon stents. Recently, clinical studies with Teflonn stents have produced contradictory results. The aim of this study was to investigatee whether the surface properties of the endoprostheses could explain the variationn observed in clinical studies. Methods:...

High-precision variational eigenvalues are obtained for the 10D, 10F, 10G and 10H states of helium by the application of multiple basis set methods. The accuracy is sufficient to provide the first definitive test of asymptotic expansion methods extensively developed by Drachman for Rydberg states of high angular momentum. The results are also compared with recent high-precision measurements for...

We study dilepton production from a thermally equilibrating quark-gluon plasma expected to be formed in ultra relativistic heavy-ion collisions. The pre-equilibrium dynamics of quark-gluon plasma is studied within the color flux-tube model by solving non-abelian relativistic transport equations. This dilepton rate crucially depends on the collision time of the plasma. The results are compared w...

The aim of this study was to investigate the effect of long-term somatostatin analogue (SM-a) treatment on serum levels of free (F) and total (T) insulin-like growth factor (IGF)-I, -II and IGF binding protein (IGFBP) - 1, -2 and -3 in euthyroid patients with active thyroid ophthalmopathy. For this purpose, we measured the above-mentioned parameters in 21 patients (11M, 10F), aged 50.8+/-11.8 y...

Co-inhibitory molecules such as PD1, PD-L1 and CTLA-4 are being increasingly used as targets of therapeutic intervention against cancer. The use of monoclonal antibodies targeting these immune checkpoints has been shown to promote anti-tumor immune responses clinically. While these promising results have led to a critical paradigm shift in treatments for cancer, these approaches are also plague...

We read the article by Xia et al1Xia M.X. Cai X.B. Pan Y.L. al.Optimal stent placement strategy for malignant hilar biliary obstruction: a large multicenter parallel study.Gastrointest Endosc. 2020; 91: 1117-1128Abstract Full Text PDF PubMed Scopus (18) Google Scholar with great interest. The addresses dilemma of endoscopic management obstruction (MHBO) because no universal consensus is availab...

OBJECTIVE This study aimed to evaluate the safety and efficacy of percutaneous vertebroplasty (PVP) combined with intensity-modulated radiotherapy (IMRT) for metastatic lesions of patients with non-small-cell lung cancer (NSCLC) at centrum vertebrae. METHODS A total of 39 patients with spinal metastatic NSCLC (stage IV) were treated with PVP followed by IMRT (30 Gy/10F/2 W) for metastatic les...

BACKGROUND Resistin is a newly discovered peptide hormone that inhibits adipogenesis. Furthermore, it may be involved in regulative processes taking place in insulin resistance and inflammation. In human beings as well as in rodents, the exact physiological role of resistin is unknown. The objective of this study was to examine whether resistin serum concentrations in childhood are regulated by...

Alterations in trafficking and increases in expression of the lysosomal proteases cathepsins B, D and L have been observed in transformed cells and malignant tumors, including human breast carcinoma. ras and the related rab proteins participate in the vesicular transport processes required for normal trafficking of lysosomal enzymes. In addition, transfection of murine fibroblasts with the ras ...