499 research outputs found

    Clinical and epidemiological characterization of a lymphogranuloma venereum outbreak in Madrid, Spain: co-circulation of two variants

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    AbstractThe lymphogranuloma venereum (LGV) outbreak described in the Netherlands in 2003, increased the interest in the genotyping of Chlamydia trachomatis. Although international surveillance programmes were implemented, these studies slowly decreased in the following years. Now data have revealed a new accumulation of LGV cases in those European countries with extended surveillance programmes. Between March 2009 and November 2011, a study was carried out to detect LGV cases in Madrid. The study was based on screening of C. trachomatis using commercial kits, followed by real-time pmpH-PCR discriminating LGV strains, and finally ompA gene was sequenced for phylogenetic reconstruction. Ninety-four LGV infections were identified. The number of cases increased from 10 to 30 and then to 54 during 2009–2011. Incidence of LGV was strongly associated with men who have sex with men; but in 2011, LGV cases were described in women and heterosexual men. Sixty-nine patients were also human immunodeficiency virus (HIV) positive, with detectable viral loads at the moment of LGV diagnosis, suggesting a high-risk of co-transmission. In fact, in four patients the diagnosis of HIV was simultaneous with LGV infection. The conventional treatment with doxycycline was prescribed in 75 patients, although in three patients the treatment failed. The sequencing of the ompA gene permitted identification of two independent transmission nodes. One constituted by 25 sequences identical to the L2b variant, and a second node including 37 sequences identical to L2. This epidemiological situation characterized by the co-circulation of two LGV variants has not been previously described, reinforcing the need for screening and genotyping of LGV strains

    Response of alluvial systems to Late Pleistocene climate changes recorded by environmental magnetism in the Añavieja Basin (Iberian Range, NE Spain)

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    Environmental magnetic proxies were analyzed in a relatively monotonous, ~25.3m thick alluvial sedimentary sequence drilled in the Añavieja Basin (NE Spain). Results from the core AÑ2 suggest that the concentrationdependent magnetic parameters mainly reflect variations in the content of detrital magnetite, sourced in the catchment rocks and soils of the basin, via changes in the dynamics of alluvial fans due to temperature changes in the northern hemisphere during the Late Pleistocene. The correspondence between the magnetic proxies and the temperature variations in the North Atlantic region (NGRIP curve) indicates that higher (lower) concentrations and finer (coarser) magnetite grains coincide with warm (cold) periods. We propose that during cold periods, a sparser vegetation cover favored the incoming of higher energy runoff bearing coarser sediments to the basin that are relatively impoverished in magnetite. In contrast, during warm periods, the wider distribution of the vegetation cover associated with the lower runoff energy lead to finer, magnetite-richer sediment input to the basin. Maghemite, presumably of pedogenic origin, appears to be present also in the studied alluvial sediments. Further studies are necessary to unravel its palaeoclimatic significance

    Analysis of the origin and training of the labor dedicated to the post-harvest process of banana in Tecomán, Cerro de Ortega, Colima, Mexico

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    Objective: Analyze and identify the place of origin, skills and working conditions of the workforce dedicated to working in the banana cutting and packaging process in the town of Cerro de Ortega, Tecomán Colima. Design / Methodology / Approach: A field checklist was designed and applied to 32% of the local crews and a survey directed to the members of the crews, surveying 21.3% of the total population. Results: Information was obtained to carry out the analysis of origin and the current situation of workforce dedicated to the post-harvest process of plantain in the study area. Limitations of the study: An important limitation for the investigation was the insecurity during the field work, which was present derived from the organized crime settled in the area. Findings / Conclusions: The most specialized workers in the area who are dedicated to the activities of cutting and packing bananas are not native to the municipality of Tecomán, much less the state of Colima, they belong to the states of Chiapas and Michoacán.Objective: To analyze and identify the place of origin, skills and working conditions of the laborers dedicated to the banana cutting and packaging process in the town of Cerro de Ortega, Tecomán, Colima. Design / Methodology / Approach: A field checklist was designed and applied to 32% of the local crews and a survey directed to the members of the crews, surveying 21.3% of the total population. Results: Information was obtained to carry out the analysis of origin and the current situation of laborers dedicated to the post-harvest process of banana in the study area. Limitations of the study: An important limitation for the research was insecurity during the field surveys, which was present derived from the organized crime settled in the area. Findings / Conclusions: The most specialized workers in the area who are dedicated to the activities of cutting and packing bananas are not native people from the municipality of Tecomán, nor from the state of Colima. They belong to the states of Chiapas and Michoacan

    A functional variant in the stearoyl-CoA desaturase (SCD) gene promoter affects gene expression in ovine muscle

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    The nutritional quality of lambs may be improved with increased stearoyl-CoA desaturase (SCD) gene expression, which increases the desaturation of stearic acid to oleic acid. The aim of this study was to evaluate the effect of the rs412429481 (FJ513370: g.31C > A) SNP located at the SCD gene on the functionality of the gene in lambs reared under different production systems. The effect of the rs412429481 SNP on gene expression in Rasa Aragonesa male lambs slaughtered at 22–24 kg was studied in two experiments. In Experiment 1 (n = 44), the semitendinosus muscle of lambs grazing alfalfa (ALF) or fed concentrates indoors (IND) was analysed; in Experiment 2 (n = 48), the semitendinosus and longissimus thoracis muscles of lambs that received supplementation with dl-a-tocopheryl acetate for different finishing periods were used. In Experiment 1, the effect of the rs412429481 SNP on the expression of the SCD gene in the semitendinosus muscle depended on the feeding group (P < 0.001), as it had no effect in ALF lambs, but CA lambs had greater SCD expression than CC lambs under the IND conditions. Moreover, ALF lambs showed lower levels of SCD gene expression than IND lambs (P < 0.05). In Experiment 2, gene expression was affected by the rs412429481 SNP in both muscles. Animals carrying the C- allele showed a lower expression rate than animals carrying the A- allele. These different expression levels were not associated with changes in the DNA methylation pattern or by the binding of specific nuclear proteins. Finally, we confirmed these results by luciferase assays, demonstrating that the SCD promoter containing the A variant had a 23.9% higher activity than the promoter containing the C variant

    Effectiveness of rosuvastatin plus colchicine, emtricitabine/tenofovir and combinations thereof in hospitalized patients with COVID-19 : a pragmatic, open-label randomized trial

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    Q1Q1The use of rosuvastatin plus colchicine and emtricitabine/tenofovir in hospitalized patients with SARS- CoV-2 disease (COVID-19) has not been assessed. The objective of this study was to assess the effectiveness and safety of rosuvastatin plus colchicine, emtricitabine/tenofovir, and their combined use in these patients.Revista Internacional - Indexad

    Paediatricians provide higher quality care to children and adolescents in primary care: A systematic review

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    Aim: The number of primary care paediatricians is decreasing in Europe without a justifiable reason. We aimed to compare the clinical practice of paediatricians and family doctors attending children and adolescents in primary care. Methods: MEDLINE, Embase, CENTRAL, TRIP and Google Scholar were searched from December 2008 to February 2018. No language or study design restrictions were applied. Three reviewers assessed eligibility of the studies. Seven pairs of reviewers performed the data extraction and assessed the methodological quality independently. Discrepancies were resolved by consensus. Results: Fifty-four, out of 1150 studies preselected, were included. We found that paediatricians show more appropriate pharmacology prescription patterns for the illness being treated; they achieve higher vaccination rates and have better knowledge of vaccines and fewer doubts about vaccine safety; their knowledge and implementation of different screening tests are better; they prescribe psychoactive drugs more cautiously and more in line with current practice guidelines; their evaluation and treatment of obesity and lipid disorders follow criteria more consistently with current clinical practice guidelines; and they perform fewer diagnostic test, show a more suitable use of the test and request fewer referrals to specialists. Conclusion: According to published data, in developed countries, paediatricians provide higher quality care to children than family doctors
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