Genome-wide association study identifies variants in the MHC class I, IL10, and IL23R-IL12RB2 regions associated with Behcet's disease

Behcet's disease is a genetically complex disease of unknown etiology characterized by recurrent inflammatory attacks affecting the orogenital mucosa, eyes and skin. We performed a genome-wide association study with 311,459 SNPs in 1,215 individuals with Behcet's disease (cases) and 1,278 healthy controls from Turkey. We confirmed the known association of Behcet's disease with HLA-B*51 and identified a second, independent association within the MHC Class I region. We also identified an association at IL10 (rs1518111, P = 1.88 x 10(-8)). Using a meta-analysis with an additional five cohorts from Turkey, the Middle East, Europe and Asia, comprising a total of 2,430 cases and 2,660 controls, we identified associations at IL10 (rs1518111, P = 3.54 x 10(-18), odds ratio = 1.45, 95% CI 1.34-1.58) and the IL23R-IL12RB2 locus (rs924080, P = 6.69 x 10(-9), OR = 1.28, 95% CI 1.18-1.39). The disease-associated IL10 variant (the rs1518111 A allele) was associated with diminished mRNA expression and low protein production

Palladium(II)-NHC complexes containing benzimidazole ligand as a catalyst for C-N bond formation

WOS: 000287164100001The reaction of 2-(2-bromoethyl)-1,3-dioxane with 1-alkylbenzimidazole derivatives results in the formation of the new benzimidazoliumsalts (1). The reaction of Pd(OAc)(2) with1,3-dialkylbenzimidazoliumsalts(1a-c) yields palladium N-heterocyclic carbene (NHC) complexes (2a-c). All synthesized compounds were characterized by (HNMR)-H-1, (CNMR)-C-13, IR and elemental analysis techniques which support the proposed structures. As catalysts, these new palladium complexes offer a simple and efficient methodology for the synthesis of triarylamines and secondary amines from anilines and amines and in a single step with potassium tertiary butoxide as a base. Copyright (C) 2010 John Wiley & Sons, Ltd.Technological and Scientific Research Council of Turkey TUBITAK-CNRS (France)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [TBAG-U/181 (106T716)]; Inonu UniversityInonu University [IU BAP: 2009/10]This work was financially supported by the Technological and Scientific Research Council of Turkey TUBITAK-CNRS (France) [TBAG-U/181 (106T716)] and Inonu University Research Fund (IU BAP: 2009/10)

Doxorubicin loaded octacalcium phosphate particles as controlled release drug delivery systems: Physico-chemical characterization, in vitro drug release and evaluation of cell death pathway

: Mastering new and efficient ways to obtain successful drug delivery systems (DDS) with controlled release became a paramount quest in the scientific community. Increase of malignant bone tumors and the necessity to optimize an approach of localized drug delivery require research to be even more intensified. Octacalcium phosphate (OCP), with a number of advantages over current counterparts is extensively used in bone engineering. The aim of the present research was to synthesize bioactive and biocompatible doxorubicin (DOX) containing OCP particles. DOX-OCP was successfully obtained in situ in an exhaustive range of added drug (1-20 wt%, theoretical loading). Based on XRD, above 10 wt% of DOX, OCP formation was inhibited and the obtained product was low crystalline α-TCP. In-vitro drug release was performed in pH 7.4 and 6.0. In both pH environments DOX had a continuous release over six weeks. However, the initial drug burst for pH 7.4, in the first 24 h, ranged from 15.9 ± 1.3 % to 33.5 ± 12 % and for pH 6.0 23.7 ± 1.5 % to 36.2 ± 12 %.The DOX-OCP exhibited an inhibitory effect on viability of osteosarcoma cell lines MG63, U2OS and HOS. In contrast, MC3T3-E1 cells (IC50 > 0.062 μM) displayed increased viability and proliferation from 3rd to 7th day. Testing of the DDS on ferroptotic markers (CHAC1, ACSL4 and PTGS2) showed that OCP-DOX does not induce ferroptotic cell death. Moreover, the evaluation of protein levels of cleaved PARP, by western blotting analysis, corroborated that apoptosis is the main pathway of programmed cell death in osteosarcoma cells induced by DOX-OCP

Effect of head-group size of some tetradecylalkylammonium bromide surfactants on obtaining the lyotropic biaxial nematic phase

Lyotropic quaternary mixtures of some tetradecylalkylammonium bromide surfactants were prepared to examine the effect of the size of the surfactant head group on the stabilization of different lyotropic nematic phases. The lyotropic mixtures were prepared by the addition of the tetradecylalkylammonium bromides (TTAABr) in the mixture of NaBr/decanol (DeOH)/water. The uniaxial to biaxial nematic phase transitions were determined via laser conoscopy. Some micellization parameters such as critical micelle concentration, degree of counterion binding and micellization Gibbs energy were evaluated from the electrical conductivity measurements of diluted binary surfactants/water solutions. The results indicate that the head-group size of the surfactant molecules influences the amphiphilic molecular aggregate topology. Moreover, the effective area per surfactant head group is a key parameter on stabilizing the lyotropic biaxial nematic phase

Decent work in nursing: Relationship between nursing work environment, job satisfaction, and physical and mental health

Aim To examine the relationship between nursing work environment, nurses' perception of decent work, job satisfaction, and physical and mental health. Background According to the psychology of working theory, work-related and overall well-being levels of employees with decent work increase as their basic needs are met. Methods This study was conducted as a cross-sectional, correlational study. The study sample consisted of 311 nurses working in two hospitals in a province of Turkey. The participants were selected using convenience sampling method. The model of the research was analyzed using structural equation modeling. This study was reported using the STROBE checklist for cross-sectional studies. Results The four dimensions of the nursing work environment were found to have a significant relationship with decent work. Decent work was found to have a direct relationship with physical and mental health. It had an indirect relationship between three subscales of work environment and physical and mental health, however, decent work had no significant relationship with job satisfaction. Conclusions The findings of this study indicated the role of decent work environment and its relationship with nurses' physical and mental health. Implications for nursing and health policy Nurse managers, policy makers, and decision-makers at all levels should improve nursing work environment and working conditions

Remission Rates, Time to Remission, and Related Factors in Adolescents with Major Depressive Disorder

Objective: Major depressive disorder (MDD) is a common disorder in children and adolescents that can cause serious morbidity and mortality. Although response rates to treatment are high, less than half of the adolescents with MDD achieve remission. The present study aims to evaluate remission rates, time to remission, and the predictors of remission in adolescents with MDD

Antecedents and Outcomes of Nurses' Subjective Career Success: A Path Analysis

Purpose This study aimed to test the hypothesis model showing the relationship between nurses' individual and working characteristics, nursing work environment, subjective career success, job satisfaction, intent to leave, and professional commitment

A child with atypically subtle clinical presentation of acute arterial ischaemic stroke in the middle cerebral artery.

Arterial ischaemic stroke in the paediatric population is considered a rare disease, and its diagnosis is often delayed due to the subtlety and variability of clinical symptoms, especially in younger patients. The clinical presentation and imaging features of ischaemic stroke in the paediatric population are variable depending on the underlying cause, affected artery and patient's age. Literally, acute occlusion of the middle cerebral artery shows significant clinical signs and symptoms, and riotous imaging findings due to the size of the territory. Here, we present a case of a 15-year-old boy who unusually had subtle and intermittent clinical symptoms in spite of a complete acute occlusion in his right middle cerebral artery

A child with atypically subtle clinical presentation of acute arterial ischaemic stroke in the middle cerebral artery

Arterial ischaemic stroke in the paediatric population is considered a rare disease, and its diagnosis is often delayed due to the subtlety and variability of clinical symptoms, especially in younger patients. The clinical presentation and imaging features of ischaemic stroke in the paediatric population are variable depending on the underlying cause, affected artery and patient's age. Literally, acute occlusion of the middle cerebral artery shows significant clinical signs and symptoms, and riotous imaging findings due to the size of the territory. Here, we present a case of a 15-year-old boy who unusually had subtle and intermittent clinical symptoms in spite of a complete acute occlusion in his right middle cerebral artery