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Feddersen Birk posted an update 1 year, 6 months ago
The present study investigated the influence of emotional contexts on mental flexibility in adults with Prader-Willi syndrome (PWS) using a voluntary task-switching paradigm that was implemented with emotionally valenced pictures. The study aims were to assess whether adults with PWS have impaired switching abilities, whether the deficit is specific to PWS or linked to intellectual disabilities, and the influence of emotional contexts on performance.
The task-switching performance of 30 adults with PWS was compared with that of 30 healthy adults matched on chronological age, and to that of 30 adults with intellectual disabilities but without PWS, matched on intellectual quotient level and chronological age. Indicators of switching performance were switching cost and repetition bias. Emotional contexts were operationalised with positive, neutral and negative task-irrelevant pictures.
Adults with PWS showed a large increase in switching costs compared with the two control groups, and this effect did not vary across emotional contexts. More fine-tuned examination revealed subtle performance modulations negative contexts tended to increase the repetition bias in all three groups while positive contexts slowed down global performance in PWS.
The results confirmed previous studies, showing impaired switching abilities in PWS over and beyond the influence of intellectual level, but revealed no robust variations in switching deficits across emotional contexts.
The results confirmed previous studies, showing impaired switching abilities in PWS over and beyond the influence of intellectual level, but revealed no robust variations in switching deficits across emotional contexts.
Antimicrobial resistance (AMR) in Helicobacter pylori is increasing globally and can result in treatment failure and inappropriate antibiotic usage. This study used whole genome sequencing (WGS) to conduct an analysis of the H.pylori resistome and phylogeny.
A total of 1040 H.pylori isolate sequences were retrieved. Analysis was conducted via an in-house bioinformatics pipeline targeting point mutations in selected genes frequently associated with AMR (pbp1A, 23S rRNA, gyrA, rdxA, frxA, and rpoB) and phylogenomic analyses using core genome multilocus sequence typing (cgMLST).
Phylogenomic analysis revealed a notable geographical clustering of H.pylori genomes across world regions, but large distances of more than 1000 loci between isolates on individual branches were observed. Resistome analysis revealed the prevalence of common mutations which have previously been found to correlate with phenotypic antibiotic resistance; the most common point mutations for each gene were S589G (pbp1A, 48.8% of perfect aligned sequences), A2143G (23S rRNA, 27.4% of perfectly aligned sequences), N87K\I\Y (gyrA, 14.7% of perfectly aligned sequences), R131K (rdxA, 65.7% of perfectly aligned sequences), and C193S (frxA, 62.6% of perfectly aligned sequences).
This is the largest study to date featuring the global phylogeny of H.pylori in conjunction with a global snapshot of the H.pylori resistome based on >1000 genomes. Further analyses that combine WGS and phenotypic methods will provide further understanding of the association between the mutations and resistance.
1000 genomes. Further analyses that combine WGS and phenotypic methods will provide further understanding of the association between the mutations and resistance.Mostly, shape-from-focus (SFF) techniques do not consider any guidance or prior information from the input image sequence while improving the depth information. Consequently, the resultant depth maps may have inaccuracies due to missing the fine structural details. In this paper, we propose a depth enhancement method based on a novel guidance map and guided filtering. In the proposed method, first, a focus measure is applied on image sequence (volume) to compute the focus volume and an initial depth map is obtained by maximizing the focus measure in the optical direction. The guidance map is computed based on the correlation among the image volume and the focus volume along the optical axis. Finally, the improved depth map is obtained by applying guided filtering of initial depth by incorporating the weights from the suggested guidance map. ARV471 Experiments were carried out using synthetic and real and microscopic image sequences of various objects. Experimental results have demonstrated the effectiveness of the proposed method and a reasonable improvement has been achieved in the quality of reconstructed depth maps.
The influence of body composition changes during neoadjuvant treatment (NT) on long-term survival in patients with gastric cancer (GC) undergoing radical gastrectomy remains unclear. The present study aimed to explore the association between changes in body composition during NT and survival in patients with GC.
GC patients treated with NT and radical gastrectomy between 2015 and 2018 were included in this retrospective study. Skeletal muscle mass, visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) were measured by computer tomography before and after NT. Body composition changes during NT were compared with Kaplan-Meier curves. Univariate and multivariate regression analyses were applied to determine the predictors of overall survival (OS) and disease-free survival (DFS).
In total, 157 GC patients were studied. A marked loss of adipose tissue was associated with poor nutritional status. The median follow-up time for all patients was 25months. Patients with marked VAT loss (≥35.7%) during NT had significantly shorter OS (p=0.028) and DFS (p=0.03). Similarly, poorer OS (p=0.033) and DFS (p=0.003) were observed in patients with marked SAT loss (≥30.1%) during NT. Changes in skeletal muscle mass and body weight during NT were not associated with survival. Marked VAT loss accompanied by marked SAT loss was an independent predictor of OS (hazards ratio=2.447; p=0.045) and DFS (hazards ratio=2.674; p=0.018).
Patients with locally advanced GC have a worse survival when they experienced marked loss of adipose tissue during NT.
Patients with locally advanced GC have a worse survival when they experienced marked loss of adipose tissue during NT.
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