Πέμπτη 14 Δεκεμβρίου 2017

Comparative Effectiveness of Infliximab Versus Adalimumab in Patients with Biologic-Naïve Crohn’s Disease

Abstract

Background

Direct head-to-head studies comparing the long-term outcomes of infliximab (IFX) to adalimumab (ADA) in Crohn's disease (CD) are sparse.

Aims

We compared the short-term and long-term efficacy and safety of IFX and ADA in CD.

Methods

We performed a single-center retrospective study including biologic-naïve adult patients with CD who were started on IFX or ADA at the McGill University Health Center. The primary end points were clinical response and remission at 12 months. Secondary end points included corticosteroid-free remission at 12 months, durable remission, and treatment failure with need for steroids, hospitalization or surgery. Safety was also assessed.

Results

Two hundred and twenty patients were included (143 IFX, 77 ADA). Patients on IFX had a higher prevalence of fistulizing or perianal disease and corticosteroid treatment at baseline. Rates of clinical remission and corticosteroid-free remission at 12 months were similar between both groups: 63.8 versus 76.3% (p = 0.139) and 54.1 versus 44.7% (p = 0.354), respectively, for IFX and ADA. Combination therapy led to significantly higher remission rates at 12 months compared to monotherapy for patients on IFX (81.2 vs. 52.1%, p = 0.008), but not for those on ADA. Higher rates of adverse events were reported with IFX compared to ADA (p = 0.006).

Conclusions

Our real-life experience in biologic-naïve CD patients demonstrated that patients started on IFX were more likely to have a harder-to-treat phenotype. Despite that, efficacy end points were similar between both groups. Clinical remission was higher in patients with combination therapy for IFX, but not for those on ADA. This warrants further investigation.



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What Performance Analysts Need to Know About Research Trends in Association Football (2012–2016): A Systematic Review

Abstract

Background

Evolving patterns of match analysis research need to be systematically reviewed regularly since this area of work is burgeoning rapidly and studies can offer new insights to performance analysts if theoretically and coherently organized.

Objective

The purpose of this paper was to conduct a systematic review of published articles on match analysis in adult male football, identify and organize common research topics, and synthesize the emerging patterns of work between 2012 and 2016, according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines.

Methods

The Web of Science database was searched for relevant published studies using the following keywords: 'football' and 'soccer', each one associated with the terms 'match analysis', 'performance analysis', 'notational analysis', 'game analysis', 'tactical analysis' and 'patterns of play'.

Results

Of 483 studies initially identified, 77 were fully reviewed and their outcome measures extracted and analyzed. Results showed that research mainly focused on (1) performance at set pieces, i.e. corner kicks, free kicks, penalty kicks; (2) collective system behaviours, captured by established variables such as team centroid (geometrical centre of a set of players) and team dispersion (quantification of how far players are apart), as well as tendencies for team communication (establishing networks based on passing sequences), sequential patterns (predicting future passing sequences), and group outcomes (relationships between match-related statistics and final match scores); and (3) activity profile of players, i.e. playing roles, effects of fatigue, substitutions during matches, and the effects of environmental constraints on performance, such as heat and altitude.

Conclusion

From the previous review, novel variables were identified that require new measurement techniques. It is evident that the complexity engendered during performance in competitive soccer requires an integrated approach that considers multiple aspects. A challenge for researchers is to align these new measures with the needs of the coaches through a more integrated relationship between coaches and researchers, to produce practical and usable information that improves player performance and coach activity.



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The effect of emotionally valenced eye region images on visuocortical processing of surprised faces

Abstract

In this study, we presented pictorial representations of happy, neutral, and fearful expressions projected in the eye regions to determine whether the eye region alone is sufficient to produce a context effect. Participants were asked to judge the valence of surprised faces that had been preceded by a picture of an eye region. Behavioral results showed that affective ratings of surprised faces were context dependent. Prime-related ERPs with presentation of happy eyes elicited a larger P1 than those for neutral and fearful eyes, likely due to the recognition advantage provided by a happy expression. Target-related ERPs showed that surprised faces in the context of fearful and happy eyes elicited dramatically larger C1 than those in the neutral context, which reflected the modulation by predictions during the earliest stages of face processing. There were larger N170 with neutral and fearful eye contexts compared to the happy context, suggesting faces were being integrated with contextual threat information. The P3 component exhibited enhanced brain activity in response to faces preceded by happy and fearful eyes compared with neutral eyes, indicating motivated attention processing may be involved at this stage. Altogether, these results indicate for the first time that the influence of isolated eye regions on the perception of surprised faces involves preferential processing at the early stages and elaborate processing at the late stages. Moreover, higher cognitive processes such as predictions and attention can modulate face processing from the earliest stages in a top-down manner.



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Transcriptome analysis of Δ mig1 Δ mig2 mutant reveals their roles in methanol catabolism, peroxisome biogenesis and autophagy in methylotrophic yeast Pichia pastoris

Abstract

Two catabolite repressor genes (MIG1 and MIG2) were previously identified in Pichia pastoris, and the derepression of alcohol oxidase (AOX) expression was realized in Δmig1 or Δmig1Δmig2 mutants grown in glycerol, but not in glucose. In this study, genome-wide RNA-seq analysis of Δmig1Δmig2 and the wild-type strain grown in glycerol revealed that the expression of numerous genes was greatly altered. Nearly 7% (357 genes) of approximately 5276 genes annotated in P. pastoris were significantly upregulated, with at least a two-fold differential expression in Δmig1Δmig2; the genes were mainly related to cell metabolism. Approximately 23% (1197 genes) were significantly downregulated; these were mainly correlated with the physiological characteristics of the cell. The methanol catabolism and peroxisome biogenesis pathways were remarkably enhanced, and the genes AOX1 and AOX2 were upregulated higher than 30-fold, which was consistent with the experimental results of AOX expression. The Mig proteins had a slight effect on autophagy when cells were grown in glycerol. The expression analysis of transcription factors showed that deletion of MIG1 and MIG2 significantly upregulated the binding of an essential transcription activator, Mit1p, with the AOX1 promoter, which suggested that Mig proteins might regulate the AOX1 promoter through the regulation of Mit1p. This work provides a reference for the further exploration of the methanol induction and catabolite repression mechanisms of AOX expression in methylotrophic yeasts.



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Selected microRNA-192 mutant indicates association with several function genes in bovine cells

Abstract

MicroRNAs are implicated in many cellular processes such as cell differentiation and development, tumorigenesis, and immune regulation. In this study, miR192 was detected using quantitative real-time polymerase chain reaction (qRT-PCR) when MDBK cells were exposed to Escherichia coli. Cells with malfunction of bta-miR-192 were established using transcription activator-like effector nuclease (TALEN) technology. Finally, bta-miR-192 mutant cells were screened for differentially expressed genes using RNA-sequencing (RNA-seq). The results showed that miR192 significantly decreased in cells exposed to E. coli F18ac and E. coli K88ac. The RNA-seq results showed that 1673 differentially expressed transcripts were identified; 890 genes were upregulated and 775 genes were downregulated. With the gene ontology enrichment analysis, 431 differentially expressed genes (DEGs) were classified into 937 gene ontology terms. The pathway enrichment analysis showed that 535 genes were involved in 254 pathway terms. Interestingly, most of these DEGs were associated with the pathways in cancers or infectious diseases. When the selected DEGs (n = 162) in these pathways were intersected with 120 differential transcripts, 11 DEGs were identified. Subsequently, several genes associated with regulation, cancers, or viral infections, such as LEF1, AXIN2, MX1, and FCGR2B, were identified among the DEGs using functional analysis. Furthermore, associations between bta-miR-192 and DEGs were detected by intersecting the bta-miR-192's target genes with the DEGs, indicating that three genes including CBL, DICER1 and TRERF1 were involved in this relationship. These findings provided useful guidance for investigating the role played by bta-miR-192 in cellular functionality in bovine cells.



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Health Status and Experience of the Migrant Workers Returned from Spain to Colombia: A Qualitative Approach

Abstract

This study aims to understand the migratory experience and the employment, work and health conditions of the returned migrants from Spain to Colombia. A qualitative study was conducted by means of 23 semi-structured interviews with Colombian returned migrant workers. Qualitative narrative content analysis was performed using Atlas.Ti software. Main findings are represented by nine categories emerged from the participants' discourses: (1) impact of the economic crisis on work and employment conditions in Spain, (2) economic crisis and return, (3) characteristics of returnees, (4) perception of the returnees about Colombia, (5) the role of social support networks, (6) employment and working conditions in Colombia, (7) health and wellbeing, (8) future plans and expectations, (9) the experience of being immigrant. Adjustment difficulties in participants are evidenced by the return migration process and the conditions of the social, political and economic system in Colombia. Return migration represents the reconfiguration of personal and working lives of this population. This situation requires the development of global policies and strategies in public health to facilitate the adaptation of these people.



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Diabetes Self-Care Behaviors Among Marshallese Adults Living in the United States

Abstract

Marshallese experience high rates of type 2 diabetes. Proper management of diabetes requires multiple self-care behaviors, yet little is known about Marshallese's diabetes-related self-care behaviors. Survey data from 111 Marshallese adults with diabetes were used to examine relationships between self-care behaviors and socio-demographic characteristics. The most common self-care behavior was attending annual doctor visits, while the least common was maintaining a normal weight. Age group, education level, and having a regular doctor were significantly associated with engaging in self-care behaviors. Having a regular doctor had the most effect on performing self-care behaviors (p = 0.006); although, only 38.7% reported having a regular doctor. To minimize diabetes-related complications, efforts to improve self-care behaviors among the Marshallese should be developed. Alternatives to traditional healthcare providers, such as community health workers, may be a viable strategy with this population given only one-third reported having a regular doctor.



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