209 research outputs found
Violent jihad and beheadings in the land of Al Fatoni Darussalam
The early 2000s has seen a revival of the Patani resistance manifesting in a violent jihad and new forms of extreme violence never witnessed before in the century-long Southern Thailand conflict. Transported by neojihadism, this new energised generation of fighters is injecting new meaning to their struggle, re-identifying friends and foes, spreading terror in hearts and minds to control mental and physical spaces through the slashing of the body, all in the hope of establishing Al Fatoni Darussalam. This article examines the reflexive repositioning of the Patani struggle through the process of transference of neojihadism and its transformation into a glocalised violent jihad
RCPSP et temps de montage dépendant de la séquence pour la modélisation et la résolution d'un problème de livraison collecte
International audienc
Recurrence of Stachybotrys chartarum during mycological and toxicological study of bioaerosols collected in a dairy cattle shed
International audienceAgricultural occupations associated with animal breeding and the processing of animal materials in confinement systems could potentially lead to bioaerosol exposures. Moulds and mycotoxins could be constituents of bioaerosols and should be studied because of their possible involvement in respiratory diseases and cancers. In order to characterize the fungal contamination of the indoor air in a dairy barn, bioaerosols were collected during 20 days in a cattle farm located in Normandy (France). Mycobiota, mycotoxins and the mutagenicity of bioaerosols were studied. The toxigenic ability of Aspergillus flavus group and Aspergillus fumigatus isolates was also evaluated in vitro. The prevalent airborne moulds were from the following potentially toxigenic species: Aspergillus flavus group, Aspergillus fumigatus, Penicillium chrysogenum, Stachybotrys chartarum, and the allergenic species Ulocladium chartarum, Cladosporium cladosporioides. In comparison with harvesting, grain handling or broiler breeding, the concentrations of viable moulds were lower in the cattle shed. Seasonal variations in levels of several species were also observed. This study revealed that aflatoxins were detected in bioaerosols and, for the first time, showed that farmers are possibly exposed to Stachybotrys chartarum during routine barn work. Moreover, the finding of mutagenicity from bioaerosols needs further investigations on bioaerosol composition
Efficacity of ternidazole-neomycin sulfate-nystatin and prednisolone association in syndromic management of vaginitis in low and middle incomes countries
Background: Vaginitis is a frequent and treated based on clinical evaluation in our countries in absence of microbiological laboratories. Evaluate the effectiveness of the management of vaginitis by ternidazole, neomycin sulfate, nystatin, prednisolone association.Methods: A five-month prospective study was carried out in three health facilities in Abidjan. Two-hundred and thirty-three patients with clinical signs of vaginitis were included after signed consent. Pregnant and breast-feeding patients, hypersensitivity or idiosyncrasy to ternidazole, neomycin sulfate, nystatin, prednisolone association were not included. Patients were divided into reference group (n=200) for which a microbiological analysis of vaginal secretions was carried out 2-4 days before treatment and control group (n=33) for which treatment was initiated straightaway. Evaluation criteria were clinical symptoms, microbiological balance carried out 10 to 14 days after treatment and occurrence of side effects. Statistical tests used were Khi2 and exact Fisher test (p<0.05).Results: Pathological leucorrhoea was differently observed in both group (p=0.001). During the follow-up visit, the persistence of symptoms was not different (p=0.99). This combination has demonstrated its efficacy in cases of Candida albicans vaginitis, bacterial vaginosis, trichomonas vaginalis vaginitis, and mixed vaginitis. A significantly improvement of symptoms (p=0.001) and low rate of biologically proven recurrence was observed in both groups. No allergic reactions linked was reported.Conclusions: In our countries this therapeutic combination appears to be an option for treated mixed vaginitis in first intention without preliminary samples of vaginal secretions
Breast location of tuberculosis: a case report and literature review
Breast tuberculosis (TB) is a rare localization of extra-pulmonary TB. We report the first case observed in our daily activities to show the difficulties in the diagnosis and the good evolution in the treatment. In spite of the fact that it is rare, breast TB should not be ignored, especially in a country with high TB endemicity
Findings from measuring door-to-door travellers’ travel satisfaction with traditional and smartphone app survey methods in eight European cities
This study investigates how different travel satisfaction survey methods influence the reported level of door-to-door travel satisfaction among travellers. The travel satisfaction measurement survey tools tested consisted of two types of smartphone applications (a satellite navigation app and a game app), an on-line survey, a paper-based semi-structured questionnaire and a focus group. Each of the measurement tools comprised of a similar set of questions, but in different formats, aimed at exploring the pros and cons of each tool among different group of travellers. In total, 5,275 valid responses were collected during the survey period from eight European cities and five FIA (Federation Internationale de I'Automobile) national motorist networks. The analysis results, with ordered logit model of travellers' reported overall satisfaction, showed that the travel satisfaction reported by different survey methods and different travel modes and user groups, correlated with distinct groups of key determinants. The relationship between and within these key determinants, however, was far from straight forward. Some were more complex than others. Some issues, such as parking availability and security, that are mostly discussed by policy makers and users may not be the ones that directly correlate with the users' overall travel satisfactions. Consistent with previous studies, the travellers' mood and previous experience influenced the reported overall journey satisfaction
HOX11L2/TLX3 is transcriptionally activated through T-cell regulatory elements downstream of BCL11B as a result of the t(5;14)(q35;q32).
International audienceThe t(5;14)(q35;q32) chromosomal translocation is specifically observed in up to 20% of childhood T-cell acute lymphoblastic leukemia (T-ALL). It affects the BCL11B/CTIP2 locus on chromosome 14 and the RANBP17-TLX3/HOX11L2 region on chromosome 5. It leads to ectopic activation of TLX3/HOX11L2. To investigate the reasons of the association between t(5;14) and T-ALL, we isolated the translocation breakpoints in 8 t(5;14) patients. Sequence analyses did not involve recombinase activity in the genesis of the translocation. We used DNAse1 hypersensitive experiments to locate transcriptional regulatory elements downstream of BCL11B. By transient transfection experiments, 2 of the 6 regions demonstrated cis-activation properties in T cells and were also effective on the TLX3 promoter. Our data indicate that the basis of the specific association between t(5;14) and T-ALL lies on the juxtaposition of TLX3 to long-range cis-activating regions active during T-cell differentiation
Impact of age, leukocyte count and day 21-bone marrow response to chemotherapy on the long-term outcome of children with philadelphia chromosome-positive acute lymphoblastic leukemia in the pre-imatinib era: results of the FRALLE 93 study
<p>Abstract</p> <p>Background</p> <p>We explored the heterogeneity of philadelphia chromosome-positive acute lymphoblastic leukemia (Ph1-ALL) in a study of the effect of early features on prognosis in children. Here we report the long-term results of the FRALLE 93 study conducted in the era before the use of tyrosine kinase inhibitors.</p> <p>Methods</p> <p>Between 1993 and 1999, 36 children with Ph1-ALL were enrolled into the FRALLE 93 protocol. After conventional four-drug induction, children were stratified by availability of an HLA-matched sibling.</p> <p>Results</p> <p>Complete remission (CR) was observed in 26 children (72%), of which 13 underwent allogeneic bone marrow transplantation (BMT). Thirty-one children were good responders to prednisone, defined on day 8, and 21 were good responders to chemotherapy, defined by day-21 bone marrow (M1). Overall five-year disease-free survival (DFS) was 42 ± 9.7%. Based on multivariate analysis, two groups showed marked differences in five-year outcome: children with age<10, leukocyte count <100,000/mm<sup>3 </sup>and day-21 M1 marrow had a more favorable prognosis (14 pts: 100% CR, event free survival [EFS]: 57%, overall survival [OS]: 79%), than the high-risk group (22 patients: 55% CR, EFS: 18%, OS: 27%) (p < 0.005). We also observed a non statistically significant difference (p = 0.14) in outcome between these groups for transplanted patients (5-year DFS: 83 ± 14% and 33 ± 15%, respectively).</p> <p>Conclusion</p> <p>Age, leukocyte count and early response to treatment defined by the D21 bone marrow response provide an accurate model for outcome prediction. The combination of available tools such as minimal residual disease assessment with determination of these simple factors could be useful for refining indications for BMT in the current era of tyrosine-kinase inhibitor-based therapy.</p
Identification of a candidate gene for astigmatism
PURPOSE. Astigmatism is a common refractive error that reduces vision, where the curvature and refractive power of the cornea in one meridian are less than those of the perpendicular axis. It is a complex trait likely to be influenced by both genetic and environmental factors. Twin studies of astigmatism have found approximately 60% of phenotypic variance is explained by genetic factors. This study aimed to identify susceptibility loci for astigmatism
Single-cell transcriptomics reveals shared immunosuppressive landscapes of mouse and human neuroblastoma
BACKGROUND
High-risk neuroblastoma is a pediatric cancer with still a dismal prognosis, despite multimodal and intensive therapies. Tumor microenvironment represents a key component of the tumor ecosystem the complexity of which has to be accurately understood to define selective targeting opportunities, including immune-based therapies.
METHODS
We combined various approaches including single-cell transcriptomics to dissect the tumor microenvironment of both a transgenic mouse neuroblastoma model and a cohort of 10 biopsies from neuroblastoma patients, either at diagnosis or at relapse. Features of related cells were validated by multicolor flow cytometry and functional assays.
RESULTS
We show that the immune microenvironment of MYCN-driven mouse neuroblastoma is characterized by a low content of T cells, several phenotypes of macrophages and a population of cells expressing signatures of myeloid-derived suppressor cells (MDSCs) that are molecularly distinct from the various macrophage subsets. We document two cancer-associated fibroblasts (CAFs) subsets, one of which corresponding to CAF-S1, known to have immunosuppressive functions. Our data unravel a complex content in myeloid cells in patient tumors and further document a striking correspondence of the microenvironment populations between both mouse and human tumors. We show that mouse intratumor T cells exhibit increased expression of inhibitory receptors at the protein level. Consistently, T cells from patients are characterized by features of exhaustion, expressing inhibitory receptors and showing low expression of effector cytokines. We further functionally demonstrate that MDSCs isolated from mouse neuroblastoma have immunosuppressive properties, impairing the proliferation of T lymphocytes.
CONCLUSIONS
Our study demonstrates that neuroblastoma tumors have an immunocompromised microenvironment characterized by dysfunctional T cells and accumulation of immunosuppressive cells. Our work provides a new and precious data resource to better understand the neuroblastoma ecosystem and suggest novel therapeutic strategies, targeting both tumor cells and components of the microenvironment
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