Braskrogers2565
rch paths.
The aim was to develop and validate a Pseudomonas aeruginosa genotypic resistance score, based on analysis of the whole genome sequence resistome, to predict antimicrobial susceptibility phenotypes.
A scoring system based on the analysis of mutation-driven resistance in 40 chromosomal genes and horizontally acquired resistance (Resfinder) was developed for ceftazidime, ceftolozane/tazobactam, meropenem, ciprofloxacin and tobramycin. Resistance genes/mutations were scored from 0 (no effect) to 1 (EUCAST clinical resistance). One hundred wild-type strains obtained from 51 different hospitals during a 2017 multicentre study were fully sequenced and analysed in order to define a catalogue of natural polymorphisms in the 40 chromosomal resistance genes. The capacity of genotypic score to predict the susceptibility phenotype was tested in 204 isolates randomly selected from the 51 hospitals (four from each hospital).
The analysis of the 100 wild-type isolates yielded a catalogue of 455 natural polymorphisms ilation between the genotypic resistance score and the susceptibility profile was documented. Further refining of the scoring system, automatization and testing of large international cohorts should follow.
Acute respiratory tract infections (RTIs) are the most common reason to seek medical care, with many patients receiving inappropriate antibiotics. Novel testing approaches to identify aetiology at the point-of-care are required to accurately guide antibiotic treatment.
To assess the diagnostic accuracy of biomarker combinations to rapidly differentiate between acute bacterial or viral RTI aetiology.
MEDLINE, Embase and Web of Science databases were searched to February 2021.
Diagnostic accuracy studies comparing accuracy of point-of-care and rapid diagnostic tests in primary or secondary care, consisting of biomarker combinations, to identify bacterial or viral aetiology of RTI.
Risk of bias was assessed using the QUADAS-2 tool. Sensitivity and specificity of tests reported by more than one study were meta-analysed using a random effects model.
Twenty observational studies (3514 patients) were identified. Eighteen were judged at high risk of bias. For bacterial aetiologies, sensitivity ranged fromigns.
PROSPERO registration number CRD42020178973.
PROSPERO registration number CRD42020178973.Severe, recurrent or atypical Herpes simplex virus (HSV) infections are still posing clinical and diagnostic problem in clinical immunology facilities. However, the molecular background of this disorder is still unclear. The aim of this study was to investigate the expression of activating receptors on NK cells (CD16, NKp46, NKG2D, NKp80, 2B4, CD48 and NTB-A) and checkpoint molecule PD-1 on T lymphocytes and NK cells, in patients with severe and/or recurrent infections with HSV and age-matched healthy control subjects. As a result, we noticed that patients with severe and/or recurrent infection with HSV had significantly lower percentage of CD16brightCD56dim and higher percentage of CD16dimCD56bright NK cell subsets, when compared to control subjects, which may be associated with abnormal NK cell maturation during chronic HSV infection. Patients had also significantly downregulated expression of CD16 receptor on CD16bright NK cells. The expression of activating receptors was significantly reduced on patients' 1) selective inhibition of activating receptors on NK cells, but not on T cells, and 2) upregulation of checkpoint molecule PD-1 on CD4+ T cells.
To describe a novel technique for temporary ovarian suspension using the Carter-Thomason CloseSure system (CooperSurgical, Inc., Trumbull, CT).
A narrated, stepwise in vivo demonstration of surgical technique.
Academic tertiary care hospital (University of Louisville Hospital, Louisville, KY).
Laparoscopic temporary ovarian suspension using the Carter-Thomason CloseSure system for improved exposure of deep pelvis during a laparoscopic excision of deep pelvic endometriosis (including demonstration of previously used techniques at this institution).
We have developed and used this technique at our institution for the last several years, reviewing 20 cases between August 2018 and September 2019, with improved intraoperative visualization and no observed intraoperative or postoperative complications. This technique has replaced the use of other forms of ovarian suspension at our institution owing to the accessibility of the device, stability of the suspension, and ease of the procedure. The Carter-Thomason technique of ovarian suspension provides excellent retraction of ovarian tissue to provide improved views of the deep pelvis, with ease of use and low cost.
We have developed and used this technique at our institution for the last several years, reviewing 20 cases between August 2018 and September 2019, with improved intraoperative visualization and no observed intraoperative or postoperative complications. This technique has replaced the use of other forms of ovarian suspension at our institution owing to the accessibility of the device, stability of the suspension, and ease of the procedure. The Carter-Thomason technique of ovarian suspension provides excellent retraction of ovarian tissue to provide improved views of the deep pelvis, with ease of use and low cost.
Pancreatic β-cell dysfunction is a central feature in the pathogenesis of type 2 diabetes (T2D). Accumulating evidence indicates that β-site APP-cleaving enzyme 2 (BACE2) inhibition exerts a beneficial effect on β-cells in different models of T2D. Thus, targeting BACE2 may represent a potential therapeutic strategy for the treatment of this disease. Here, we aimed to investigate the effects of BACE2 suppression on glucose homeostasis in a model of diet-induced obesity.
BACE2 knock-out (BKO) and wild-type (WT) mice were fed with a high-fat diet (HFD) for 2 or 16 weeks. Body weight, food intake, respiratory exchange ratio, locomotor activity, and energy expenditure were determined. selleck products Glucose homeostasis was evaluated by glucose and insulin tolerance tests. β-cell proliferation was assessed by Ki67-positive nuclei, and β-cell function was determined by measuring glucose-stimulated insulin secretion. Leptin sensitivity was evaluated by quantifying food intake and body weight after an intraperitoneal leptin injection.