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Aim Aim of this study was to design a solid oral delivery system for a weakly basic drug such as dasatinib (DAS), so as to achieve pH-independent dissolution and improved oral bioavailability.Methods DAS was solubilised using sodium lauryl sulphate as an aqueous micellar system and such a system containing lactose monohydrate as carrier was spray-dried to obtain a solid mass. Subsequently, the DAS-solid was converted into a tablet using conventional tableting methods.Results The dissolution study revealed pH-independent dissolution over a wide range of pH conditions. An in vivo bioavailability testing on rats revealed an improved Cmax and AUC0-24. Similarly, viability assay showed a better inhibitory effect of spray-dried dasatinib over the DAS.Conclusions Micellar solubilisation and spray-drying technology can be approached to resolve poor dissolution and bioavailability of drugs belonging to biopharmaceutical classification system II and III. This technology is amenable to scale-up and has commercial potential.Objectives Anti-TNF treatment is established for patients with severe inflammatory bowel disease (IBD) refractory to conventional medication. However, long-term real-life observations are limited. We have monitored 200 patients with primary response to infliximab (Remicade®).Methods Patients with either Crohn's disease (CD) or ulcerative colitis (UC) who started IFX and had clinical response at 1 year were prospectively followed. C-reactive protein (CRP), albumin, fecal calprotectin (FCP), Harvey Bradshaw index (HBI) in CD cases, and Quality of Life index were monitored. Concomitant medications, surgery and hospitalisation were assessed.Results Out of the 200 patients, 164 suffered from CD. Median disease duration was 5.0 (0.2-44.0) years and the observation time was 3.4 (1.0-13.9) years. Steroid use was reduced from 51% to 10%. HBI in CD patients decreased from 8.0 ± 0.40 to 2.7 ± 0.26. Disease activity in UC patients was only assessed by biochemical markers. CRP decreased from 29.0 ± 6.2 to 8.0 ± 7.1 mg/L. FCP showed a decrease from 1918 (1837) to 191 (646) mg/kg. Hospitalization showed similar tendency and quality of life was improved. Twenty-seven percent had been operated before IFX introduction compared to 11% during the observation period. Loss of response was seen in 42 patients, of which 20 patients needed intestinal surgery.Conclusion Two-thirds of the patients demonstrated stable clinical benefit from maintenance IFX. The results show steroid-sparing efficacy as well as improved quality of life and reduced need for surgery.Introduction Stenotrophomonas maltophilia is a prototype of bacteria intrinsically resistant to antibiotics. The reduced susceptibility of this microorganism to antimicrobials mainly relies on the presence in its chromosome of genes encoding efflux pumps and antibiotic inactivating enzymes. Consequently, the therapeutic options for treating S. maltophilia infections are limited.Areas covered Known mechanisms of intrinsic, acquired and phenotypic resistance to antibiotics of S. maltophilia and the consequences of such resistance for treating S. maltophilia infections are discussed. Acquisition of some genes, mainly those involved in co-trimoxazole resistance, contributes to acquired resistance. https://www.selleckchem.com/products/PD-98059.html Mutation, mainly in the regulators of chromosomally-encoded antibiotic resistance genes, is a major cause for S. maltophilia acquisition of resistance. The expression of some of these genes is triggered by specific signals or stressors, which can lead to transient phenotypic resistance.Expert opinion Treatment of S. maltophilia infections is difficult because this organism presents low susceptibility to antibiotics. Besides, it can acquire resistance to antimicrobials currently in use. Particularly problematic is the selection of mutants overexpressing efflux pumps since they present a multidrug resistance phenotype. The use of novel antimicrobials alone or in combination, together with the development of efflux pumps' inhibitors may help in fighting S. maltophilia infections.OBJECTIVES Subjective well-being has been associated with decreased work burnout and elevated work engagement. We investigated the impact of hope and meaning in life on subjective well-being among workers in a hospice care setting. Comparison was made to health-care workers in a rehabilitation unit. METHODS Thirty-five hospice care workers were surveyed and their responses compared with those of 36 rehabilitation workers. Survey instruments measuring hope, meaning in life, work engagement, and satisfaction with life were utilized. RESULTS Individuals working in a hospice care center have significantly higher levels of work engagement than their counterparts in rehabilitation. For both groups, hope was significantly related to subjective well-being. For hospice care but not rehabilitation workers, meaning in life was also related to subjective well-being. Multivariate analysis showed that hope and meaning in life were independent factors predicting subjective well-being in hospice care workers. SIGNIFICANCE OF RESULTS Hospice care workers are highly engaged in their work despite the challenging nature of their work. What characterizes these workers is a level of subjective well-being that is related to both meaning in life and hope. Maintaining a high level of subjective well-being may be an important factor in preventing burnout among those working in hospice care settings.BACKGROUND Insulin resistance (IR) is a well-known risk factor for cardiovascular complications. This study aimed to investigate the effect of a dietary model of IR in mice on cardiac remodeling, cardiac β-arrestin2 signaling, and the protective effects of carvedilol as a β-arrestin-biased agonist. METHODS AND RESULTS Insulin resistance was induced by feeding mice high-fructose/high-fat diet (HFrHFD) for 16 weeks. Carvedilol was adiministered for 4 weeks starting at week 13. At the end of the experiment, body weight, heart weight, left and right ventricular thickness, visceral fat weight, fasting blood glucose (FBG), serum insulin, IR index, and serum endothelin-1 were measured. In addition, cardiac tissue samples were histopathologically examined. Also, cardiac levels of cardiotrophin-1, β-arrestin2, phosphatidylinositol 4,5 bisphosphate (PIP2), diacylglycerol (DAG), and phosphoserine 473 Akt (pS473 Akt) were measured. Results showed significant increases in the FBG, serum insulin, IR index, serum endothelin-1, cardiac DAG, cardiac fibrosis, and degenerated cardiac myofibrils in HFrHFD-fed mice associated with a significant reduction in cardiac levels of cardiotrophin-1, β-arrestin2, PIP2, and pS473 Akt.
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