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Thybo Sellers posted an update 4 days, 9 hours ago
In total, 238 plasma and 15 CSF concentrations were collected. A two-compartment disposition model, with an additional CSF compartment and first-order absorption, best described the data. Bioavailability was estimated as 0.48 (95% CI = 0.347-0.775) and the CSF/plasma ratio as 0.32 (95% CI = 0.272-0.409). Allometric weight and postmenstrual age (PMA) scaling was applied; additional covariates included postnatal age (PNA) on clearance and CSF protein on CSF/plasma ratio.
Through this analysis a population pharmacokinetic model has been developed that can be used alongside currently available pharmacodynamic targets to select a neonatal fosfomycin dose based on an infant’s PMA, PNA and weight.
Through this analysis a population pharmacokinetic model has been developed that can be used alongside currently available pharmacodynamic targets to select a neonatal fosfomycin dose based on an infant’s PMA, PNA and weight.In contrast to optical colonoscopy, computed tomography colonography (CTC) has the ability to reveal pathology outside of the colon. While identification of colorectal lesions at CTC requires only limited radiation dose, the detection of abnormalities in extracolonic soft tissue requires more radiation. The purpose of this study was to investigate the influence of ultra-low-dose (ULD) CTC on the detection and characterisation of extracolonic findings. In a prospective study 49 patients with colorectal symptoms were examined with CTC adding a ULD series (mean effective dose 0.9 ± 0.4 mSv) to the normal unenhanced standard dose (SD) series (mean effective dose 3.6 ± 1.2 mSv). Five radiologists individually and blindly evaluated the ULD, followed by evaluation of the SD after ≥9 weeks (median 35 weeks). A ViewDEX-based examination protocol was used, including a confidence scale and a graded assessment of need for follow-up according to the CTC Reporting and Data System (C-RADS E0-E4). The reference findings comprised the combined information from CTC (ULD, SD and contrast-enhanced CTC series) and a 4-year radiological and clinical follow-up. For the overall detection of reference findings (E2-E4) we found a statistically significant difference in favour of SD. This, however, was not the case when looking at classification of possibly important/important reference findings (E3-E4). Our results suggest that CTC with ULD (0.9 mSv) is comparable to SD (3.6 mSv) for identification of clinically relevant extracolonic pathology, but there is a large inter-observer variability.
To examine the impact of changing school start times on sleep for primary (elementary school ES) and secondary (middle and high school MS/HS) students.
Students (grades 3-12) and parents (grades K-12) were surveyed annually, before and for 2 years after school start time changes (ES 60 min earlier, MS 40-60 min later; HS 70 min later). Student sleep and daytime sleepiness were measured with school-administered student surveys and parent-proxy online surveys.
Approximately 28,000 students annually completed surveys (~55% White, ~21% free/reduced lunch [FRL]). One-year post-change, weekday bedtimes and wake times were slightly earlier for ES students, with an 11-min decrease in sleep duration. MS and HS students reported slightly later weekday bedtimes, significantly later wake times, and significantly longer sleep duration (MS 29 min; HS 45 min). The percent of ES students reporting sufficient sleep duration, poor sleep quality, or daytime sleepiness did not change, but the percent of MS and HS students tart times on student sleep and daytime sleepiness.Hybrid endoscopy-assisted larynx-preserving esophagectomy is developed for cervical esophageal squamous cell carcinoma encroaching or extending above the upper esophageal sphincter. First, a cervical incision was surgically performed followed by cervical lymph node dissection. Second, the margin of cervical esophageal squamous cell carcinoma was endoscopically identified with iodine staining and marked endoscopically followed by semi-circumferential or circumferential endoscopic full-thickness excision around the lumen of the esophagus. The distal margin was surgically resected and reconstruction was performed. Among six consecutive patients with cervical esophageal squamous cell carcinoma undergoing hybrid endoscopy-assisted larynx-preserving esophagectomy, proximal surgical margin was histologically negative in five patients. Catechin hydrate in vivo During a median follow-up period of 15.5 months, all patients tolerated oral intake and were alive without evidence of recurrence. None of the patients experienced aspiration pneumonia, vocal disorder or postoperative anastomotic stricture. Hybrid endoscopy-assisted larynx-preserving esophagectomy could be a clinically feasible treatment for cervical esophageal squamous cell carcinoma providing accurate proximal resection margin with the benefit of laryngeal function preservation.
The prevalence of type 2 diabetes mellitus (T2DM) and cardiovascular diseases (CVDs) is increasing in Asia and several countries are adopting preventive policies to reduce consumption of sugar-sweetened beverages (SSBs). However, evidence on the relation between SSB consumption and cardiometabolic health in Asian populations has not been summarized.
In this systematic review, the associations between consumption of SSBs and cardiometabolic outcomes, including obesity, T2DM, and CVD, are examined in Asian populations.
The PubMed, Scopus, and Web of Science databases, and gray literature were searched up to October, 2020 to identify relevant articles.
Two investigators independently extracted data from included studies.
When sufficient studies were available, a random-effects meta-analysis was used to calculate the pooled estimates (expressed as risk ratio [RR] and 95% confidence interval [CI]). Heterogeneity was tested and quantified using the Cochrane Q test and I2 statistic, respectively.
Of the gistration no. CRD42019129456.Keywords adiposity. cardiovascular disease, Asia, sugar-sweetened beverages, type 2 diabetes.
This study introduces a newly created strain (Rhodococcus equiEtBr25) by exposing R. equi ATCC 33701 to ethidium bromide (EtBr), a substrate for MDR transporters. Such an approach allowed us to investigate the resulting phenotype and genetic mechanisms underlying the efflux-mediated resistance in R. equi.
R. equi ATCC 33701 was stimulated with increasing concentrations of EtBr. The antimicrobial susceptibility of the parental strain and R. equiEtBr25 was investigated in the presence/absence of efflux pump inhibitors (EPIs). EtBr efflux was evaluated by EtBr-agar method and flow cytometry. The presence of efflux pump genes was determined by conventional PCR before to quantify the expression of 30 genes coding for membrane transporters by qPCR. The presence of erm(46) and mutations in 23S rRNA, and gyrA/gyrB was assessed by PCR and DNA sequencing to exclude the occurrence of resistance mechanisms other than efflux.
R. equi EtBr25 showed an increased EtBr efflux. Against this strain, the activity of EtBr, azithromycin and ciprofloxacin was more affected than that of rifampicin and azithromycin/rifampicin combinations.