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© 2020 The Authors. Head & Neck published by Wiley Periodicals, Inc.Tricuspid regurgitation in patients with left ventricular assist device (LVAD) has a significant impact on prognosis and quality of life, and its effects on liver and renal function could negatively impact planned heart transplantation. The aim of the present case is to report the feasibility and the clinical impact of tricuspid transcatheter edge-to-edge repair in LVAD patients as adjunctive bridge to transplantation strategy. A 59-year-old female patient previously treated with LVAD implantation (HeartMate III) and tricuspid valve repair with 32 mm rigid ring (Medtronic Contour 3D) as bridge to transplantation developed recurrence of significant tricuspid regurgitation with right ventricular decompensation needing inotropic support. Preoperative echo showed torrential tricuspid valve regurgitation Effective regurgitant orifice area(EROA 1.4 cm2 ) with suspicious of partial detachment of the prosthetic ring. The patient was successfully treated with transcatheter edge-to-edge repair with the MitraClip XTR device. Tricuspid regurgitation was reduced by 50% (postoperative EROA 0.7 cm2 ). She remained stable under continuous inotropic support with no other episodes of right ventricular decompensation and was successfully transplanted 30 days after the clipping procedure. Transcatheter treatment of tricuspid regurgitation in a patient with LVAD was an effective strategy to gain time and bridge the patient to heart transplantation. © 2019 The Authors. ESC Heart Failure published by John Wiley & Sons Ltd on behalf of the European Society of Cardiology.Outpatient therapeutic feeding protocols for the treatment of uncomplicated severe acute malnutrition in children were initially based on weight gain data from inpatient settings and expert knowledge of the physiological requirements during recovery. However, weight gain and energy requirements from historic inpatient settings may differ from modern outpatient settings and therefore may not be appropriate to guide current therapeutic feeding protocols. We calculated the weight gain and average estimated total daily energy requirement of children successfully treated for uncomplicated severe acute malnutrition as outpatients in Niger (n = 790). Mean energy provided by six therapeutic feeding protocols was calculated and compared with average estimated energy requirements in the study population. Overall weight gain was 5.5 g·kg-1 ·day-1 among recovered children. Average energy requirements ranged from 92 to 110 kcal·kg-1 ·day-1 depending on the estimation approach. Two current therapeutic feeding protocols were found to provide an excess of energy after the first week of treatment in our study population, whereas four research protocols tended to provide less energy than the estimated requirement after the first week of treatment. Alternative feeding protocols have the potential to simplify and lead to important savings for programmes but should be evaluated to show adequacy to meet the energy needs of children under treatment, as well as feasibility and cost efficiency. Our findings rely on theoretical calculations based on several assumptions and should be confirmed in field studies. © 2020 The Authors. Maternal & Child Nutrition published by John Wiley & Sons Ltd.BACKGROUND Left atrial diameter (LAd) is included in the European Society for Cardiology's (ESC) risk model for assessment of sudden cardiac death (SCD) risk in hypertrophic cardiomyopathy (HCM), but the recommended measure of LA size is left atrial volume (LAv). HYPOTHESIS We hypothesized that LAv could be used instead of LAd in the HCM risk-SCD model. We aimed to determine the relation between LAd and LAv and to assess the impact of using LAv instead of LAd. METHODS Echocardiographic measurements of anteroposterior LAd in the parasternal long-axis window and LAv from Simpson's biplane method of disks were used. The 5-year risk of SCD by measured LAd and by LAd predicted from LAv were estimated using the ESC risk-SCD model. RESULTS In 205 HCM patients (age 56 ± 14 years, 62% male), the relation between LAd and LAv was linear. Median 5-year risk of SCD was 2.4% (interquartile range [IQR] 1.6; 3.8) using measured LAd and 2.4% (IQR 1.6; 3.7) using predicted LAd. The correlation between the SCD risk assessed by measured vs predicted LAd was excellent (r2 = 0.96). Use of predicted LAd resulted in four patients (2%) being recategorized between the moderate and high-risk categories. CONCLUSIONS The relation between LAd and LAv was linear with good agreement. On a population level, the correlation between the risk of SCD using measured LAd or LAd predicted from LAv was excellent. On a patient level, using LAd predicted from LAv resulted in the vast majority remaining in the same risk category; however, for a minority of patients, it changed the recommendation. © 2020 The Authors. Clinical Cardiology published by Wiley Periodicals, Inc.Human leukocyte antigen (HLA) sensitization remains a huge barrier to transplantation, especially in the setting of kidney transplantation and particularly for women that have had pregnancies and those that are repeat kidney-transplant candidates. Indeed, patients that are HLA-sensitized are more prone to develop posttransplant acute rejection as are those that are sensitized at pretransplant against the donor, i.e. they have preformed donor-specific alloantibodies (DSAs). These patients have a greater risk of hyperacute rejection and antibody-mediated rejection (ABMR) (acute or chronic). The presence of pretransplant cytotoxic DSAs precludes transplantation unless the patient undergoes pretransplant desensitization [1]. This article is protected by copyright. All rights reserved.Metabolite identification is a crucial step in non-targeted metabolomics, but also represents one of its current bottlenecks. Accurate identifications are required for correct biological interpretation. To date, annotation and identification are usually based on the use of accurate mass search or tandem MS analysis, but neglect orthogonal information such as retention times obtained by chromatographic separation. While several tools are available for the analysis and prediction of tandem MS data, prediction of retention times for metabolite identification are not widespread. BL-918 ic50 Here, we review the current state of retention time prediction in liquid chromatography-mass spectrometry-based metabolomics, with a focus on publications published after 2010. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.Headspace solid-phase microextraction is a solvent-free sample preparation technique that is based on the equilibrium among a three-phase system, i.e., sample-headspace-fiber. A compromise between sensitivity and extraction time is usually needed to optimize the sample throughput, especially when a large number of samples are analyzed, as usually the case in cross-samples studies. This work explores the capability of multiple-cumulative solid-phase microextraction on the characterization of the aroma profiling of olive oils, exploiting the automation capability of a novel headspace autosampler. It was shown as multiple-cumulative- solid-phase microextraction has the potential to improve the overall sensitivity and burst the level of information for cross-sample studies by using cumulative shorter extraction times. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.Adoptive transfer of T cells is a promising therapy for many cancers. To enhance tumor recognition by T cells, chimeric antigen receptors (CAR) consisting of signaling domains fused to receptors that recognize tumor-associated antigens can be expressed in T cells. While CAR T cells have shown clinical success for treating hematopoietic malignancies, using CAR T cells to treat solid tumors remains a challenge. We developed a chimeric PD1 (chPD1) receptor that recognizes the ligands for the PD1 receptor which are expressed on many types of solid cancer. To determine if this novel CAR could target a wide variety of tumor types, the anti-tumor efficacy of chPD1 T cells against syngeneic murine models of melanoma, renal, pancreatic, liver, colon, breast, prostate, and bladder cancer was measured. Of the fourteen cell lines tested, all expressed PD1 ligands on their cell surface, making them potential targets for chPD1 T cells. ChPD1 T cells lysed the tumor cells and secreted pro-inflammatory cytokines (IFNγ, TNFα, IL-2, GM-CSF, IL-17, and IL-21) but did not secrete the anti-inflammatory cytokine IL-10. Furthermore, T cells expressing chPD1 receptors reduced an established tumor burden and led to long-term tumor free survival in all types of solid tumors tested. ChPD1 T cells did not survive longer than 14 days in vivo, however treatment with chPD1 T cells induced protective host anti-tumor memory responses in tumor-bearing mice. Therefore, adoptive transfer of chPD1 T cells could be a novel therapeutic strategy to treat multiple types of solid cancer. This article is protected by copyright. All rights reserved.Cryopreservation of in vitro-derived bovine embryos is a crucial step for the widespread reproduction and conservation of valuable high merit animals. Given the current popularity of bovine in vitro embryo production (IVP), there is a demand for a highly efficient ultra-low temperature storage method in order to maximize donor ovum pick-up (OPU) turn-over, recipient availability/utilization and domestic/overseas commercial trading opportunities. However, IVP bovine embryos are still very sensitive to chilling and cryopreservation and despite recent progress, a convenient (simple and robust) protocol has not yet been developed. At the moment, there are two methods for bovine IVP embryo cryopreservation slow programmable freezing and vitrification. Both of the aforementioned techniques have pros and cons. While controlled-rate slow cooling can easily be adapted for direct transfer (DT), ice crystal formation remains an issue. On the other hand, vitrification solved this problem but the possibility of successful DT commercial incorporation remains to be determined. Moreover, simplification of the vitrification protocol (including warming) through the use of an in-straw dilution without the use of a microscope is a prerequisite for its use under farm conditions. This review summarizes the bovine IVP embryo cryopreservation achievements, strengths and limitations of both freezing systems and prospective improvements to enhance cryosurvival, as well as perspectives on future directions of this assisted reproductive technology. This article is protected by copyright. All rights reserved.The prognosis of malignant tumors is challenged by insufficient means to effectively detect tumors at early stage. Liquid biopsy using circulating tumor cells (CTCs) as biomarkers demonstrates a promising solution to tackle the challenge, because CTCs play a critical role in cancer metastatic process via intravasation, circulation, extravasation, and formation of secondary tumor. However, the effectiveness of the solution is compromised by rarity, heterogeneity, and vulnerability associated with CTCs. Among a plethora of novel approaches for CTC isolation and enrichment, microfluidics leads to isolation and detection of CTCs in a cost-effective and operation-friendly way. Development of microfluidics also makes it feasible to model the cancer metastasis in vitro using a microfluidic system to mimick the in vivo microenvironment, thereby enabling analysis and monitor of tumor metastasis. This paper aims to review the latest advances for exploring the dual-roles microfluidics has played in early cancer diagnosis via CTC isolation and investigating the role of CTCs in cancer metastasis; the merits and drawbacks for dominating microfluidics-based CTC isolation methods are discussed; biomimicking cancer metastasis using microfluidics are presented with example applications on modelling of tumor microenvironment, tumor cell dissemination, tumor migration, and tumor angiogenesis.
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