• Sutton Cook opublikował 5 miesięcy, 1 tydzień temu

    BACKGROUND Screening for latent tuberculosis infection (LTBI) in migrants is important for elimination of tuberculosis in low-incidence countries, alongside the need to detect blood-borne infections to align with new guidelines on migrant screening for multiple infections in European countries. However, feasibility needs to be better understood. METHODS We did a feasibility study to test an innovative screening model offering combined testing for LTBI (QuantiFERON), HIV, hepatitis B/C in a UK emergency department, with two year follow-up. RESULTS 96 economic migrants, asylum seekers and refugees from 43 countries were screened (46 [47.9%] women; mean age 35.2 years [SD 11.7; range 18-73]; mean time in the UK 4.8 years [SD 3.2; range 0-10]). 14 migrants (14.6%) tested positive for LTBI alongside HIV [1], hepatitis B [2], and hepatitis C [1] Of migrants with LTBI, 5 (35.7%) were successfully engaged in treatment. 74 (77.1%) migrants reported no previous screening since migrating to the UK. CONCLUSION Multi-disease screening in this setting is feasible and merits being further tested in larger-scale studies. However, greater emphasis must be placed on ensuring successful treatment outcomes. We identified major gaps in current screening provision; most migrants had been offered no prior screening despite several years since migration, which holds relevance to policy and practice in the UK and other European countries. Arthroplasty of the distal radioulnar joint (DRUJ) using a semiconstrained DRUJ implant yields good outcomes according to the literature. The aim of this study was to investigate the subjective, clinical and radiographic outcomes with a special focus on complications in nine patients with a mean follow-up of 6 years and to compare them with our previously published 3-year follow-up results. No subjective or objective changes were seen between the 3-year and the 6-year follow-up. In the previous study, one implant loosening and two irritations of the superficial branch of the radial nerve occurred. We saw three complications that needed surgery in addition to the three complications already found 3 years after surgery. One patient with a large ulna had loosening of the cemented ulnar stem and therefore the prosthesis was explanted. One patient had an allergic reaction to the metal alloy of the prosthesis, which also led to removal. One patient had an ulnar impaction syndrome caused by too-distal placement of the implant that needed revision. Prior studies reported low complication rates. In our study, six complications occurred in four out of nine patients, requiring reoperation including two revisions and two implant removals. A precise surgical technique is mandatory to avoid the otherwise frequent complications and potential implant failures. Exertional compartment syndrome of the forearm is a rare pathology, occurring almost exclusively in motorcycle racers. The results of endoscopic techniques are similar to those of open fasciotomies, but they are less invasive and leave smaller scars. The aim of our study was to present a new endoscopic technique for superficial fasciotomy using the Agee® system and to describe the results. This was a single-center, retrospective descriptive study of 21 patients (36 forearms) operated on between 2006 and 2016. All patients but one were competitive motorcycle racers. The mean operating time was 38.2min (standard deviation (SD), 10.5min). The QuickDASH score was 23.3±10.2% preoperatively versus 1±2% postoperatively (mean±SD). Among the 18 patients who came back for a follow-up visit after 4.9±2.7 years, 17 (94%) were satisfied or very satisfied. The mean time before returning to sport was 4.3 weeks (SD, 1.8 weeks), 9 patients (50%) at the same level as before surgery, 8 (44%) at a higher level, and one at a lower level. There were a few minor complications (superficial vascular lesions, hematoma, transitory hypoesthesia) and symptoms recurred in two patients. Our technique yields outcomes similar to those of other published endoscopic procedures and allows early return to sport. It has the advantage of being based on the Agee endoscope, which is commonly used to treat carpal tunnel syndrome, making the procedure easy to master. Patients suffering from autoimmune diseases are more susceptible to mental disorders yet, the existence of specific cellular and molecular mechanisms behind the co-morbidity of these pathologies is far from being fully elucidated. By generating transgenic mice overexpressing Annexin-A1 exclusively in T cells to study its impact in models of autoimmune diseases, we made the unpredicted observation of an increased level of anxiety. Gene microarray of Annexin-A1 CD4+ T cells identified a novel anxiogenic factor, a small protein of approximately 21 kDa encoded by the gene 2610019F03Rik which we named Immuno-moodulin. Neutralizing antibodies against Immuno-moodulin reverted the behavioral phenotype of Annexin-A1 transgenic mice and lowered the basal levels of anxiety in wild type mice; moreover, we also found that patients suffering from obsessive compulsive disorders show high levels of Imood in their peripheral mononuclear cells. We thus identify this protein as a novel peripheral determinant that modulates anxiety behavior. Therapies targeting Immuno-moodulin may lead to a new type of treatment for mental disorders through regulation of the functions of the immune system, rather than directly acting on the nervous system. BACKGROUND Non-convulsive neurostimulation is a rapidly-developing alternative to traditional treatment approaches in depression. Modalities such as repetitive Transcranial Magnetic Stimulation (rTMS), transcranial Direct Current Stimulation (tDCS), Vagal Nerve Stimulation (VNS) and Deep Brain Stimulation (DBS) are now recognized as potential treatments. How non-convulsive neurostimulation interventions impact the neurohormonal and neuroimmune changes that accompany depression remains relatively unknown. If this type of intervention can drive endocrine, immune, as well symptom changes in depression, non-convulsive neurostimulation may represent a viable, multi-faceted treatment approach in depression. We were therefore interested to understand the state of the literature in this developing area. METHODS A systematic review of all studies that examined the impact of non-convulsive neurostimulation interventions on the hypothalamic-pituitary-adrenal (HPA) axis and immune function in the form of cytokine product measures and the limited number of studies retrieved. Animal studies generally supported the findings of those in human, but again, significant variability in methodology and study design were evident. CONCLUSIONS Non-convulsive neurostimulation interventions show promise in their ability to alter the endocrine and immune disturbances that accompany depression. Further research, which includes blinded, sham-controlled comparator designs is required. Non-damaging ultraviolet-B (UV-B) light promotes photomorphogenic development and stress acclimation in Arabidopsis through UV-B-specific signal transduction. UV-B irradiation induces monomerization and nuclear translocation of the UV-B photoreceptor UV RESISTANCE LOCUS 8 (UVR8). However, it is not clear how the nuclear localization of UVR8 leads to changes in global gene expression. Here we reveal that nuclear UVR8 governs UV-B responsive transcriptional networks in concert with several previously known transcription factors, including ELONGATED HYPOCOTYL 5 (HY5) and PHYTOCHROME INTERACTING FACTOR 4 (PIF4). Based on our transcriptomic analysis, we identify MYB13 as a novel positive regulator in UV-B-induced cotyledon expansion and stress acclimation. MYB13 is UV-B inducible and is predominantly expressed in the cotyledons. Our results demonstrate that MYB13 protein functions as a transcription factor to regulate the expression of genes involved in auxin response and flavonoid biosynthesis, and directly binds to their promoters. In addition, photoactivated UVR8 interacts with MYB13 in a UV-B dependent manner, and differentially modulates the affinity of MYB13 with its targets. Taken together, our results elucidate the cooperative function of the UV-B photoreceptor UVR8 with various transcription factors in the nucleus to orchestrate the expression of specific sets of downstream genes, and ultimately, mediate plant responses to UV-B light. Alterations in fatty acid metabolism are associated with impaired glucose uptake in skeletal muscle. Long-chain acyl-CoA synthetase (Acsl) 6 is the one of the Acsl isoforms expressed in skeletal muscle although its role in muscle energy metabolism has not been studied. Thus, the aims of this study were to investigate the role of Acsl6 in fatty acid partitioning and glucose uptake in differentiated skeletal myotubes using a siRNA-mediated knockdown approach. Compared with cells transfected with control siRNA, cells transfected with Acsl6 siRNA exhibited reduced intracellular triacylglycerol (TAG) accumulation. The initial rate of [1‑14C]‑oleic acid uptake was not altered while the incorporation of [1‑14C]‑acetic acids into total cellular lipids decreased under Acsl6 knockdown (p  less then  0.05). In a metabolic labeling study, Acsl6 suppression decreased the incorporation of [1‑14C]‑oleic acids and [1‑14C]‑acetic acids into TAG and diacylglycerol (DAG) (p  less then  0.05). During the chase period of a pulse-chase experiment, Acsl6 suppression increased the intracellular free fatty acids and decreased the fatty acid channeling toward the reacylation of TAG (p  less then  0.05). The incorporation of the labeled fatty acids into acid-soluble metabolites, β-oxidation product, was not changed under Acsl6 knockdown. Acsl6 siRNA decreased the insulin-induced uptake of [1‑14C]‑2‑deoxyglucose (p  less then  0.05) but did not change the glucose uptake in the presence of acipimox, inhibitor of lipolysis. Suppression of Acsl6 deteriorated Akt phosphorylation and Glut4 mRNA expression in response to insulin. These results suggest that Acsl6 activates and channels fatty acids toward anabolic pathways and has a role in glucose and fatty acid cycling through the re-esterification of fatty acids in skeletal muscle. V.In Barth syndrome (BTHS) mutations in tafazzin leads to changes in both the quantities and the molecular species of cardiolipin (CL), which are the hallmarks of BTHS. Contrary to the well-established alterations in CL associated with BTHS; recently a marked decrease in the plasmalogen levels in Barth specimens has been identified. To restore the plasmalogen levels, the present study reports the effect of promotion of plasmalogen biosynthesis on the lipidome of lymphoblasts derived from Barth patients as well as on cell viability, mitochondria biogenesis, and mitochondrial membrane potential. High resolution 31P NMR phospholipidomic analysis showed an increase in the levels of plasmenylethanolamine (the major plasmalogen in lymphoblasts), which reached values comparable to the control and a compensatory decrease in the levels of its diacyl-PE counterpart. Importantly, 31P NMR showed a significant increase in the levels of CL, while not altering the levels of monolysocardiolipin. Mass spectrometry measurements showed that the promotion of plasmalogen biosynthesis did not change the molecular species profile of targeted phospholipids.

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