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https://www.readbyqxmd.com/read/28306594/extending-normothermic-regional-perfusion-to-the-thorax-in-donors-after-circulatory-death
#1
Steven S L Tsui, Gabriel C Oniscu
PURPOSE OF REVIEW: Despite a significant increase in the utilization of donors after circulatory death (DCD), the number of organs recovered and their function are largely inferior to those from donors after brain death. This review summarizes recent advances in in-situ normothermic regional perfusion of DCD organs prior to procurement. RECENT FINDINGS: The combination of warm and cold ischemia in DCD donation are detrimental to organ function. As a consequence, the acceptance criteria are far more restrictive and many organs are discarded...
March 16, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28306532/evaluation-of-the-sub-chronic-toxicity-profile-of-the-corm-of-xanthosoma-sagittifolium-on-hematology-and-biochemistry-of-alloxan-induced-diabetic-wistar-rats
#2
Olayinka A Oridupa, Oluyemisi F Folasire, Adedotun J Owolabi
Background Hematological and biochemical changes associated with diabetes mellitus and probable reversal were assessed in alloxan-induced diabetic Wistar rats fed with varied percentages of Xanthosoma sagittifolium corm feed (Xs). The changes were compared to normoglycemic rats and diabetic rats treated with glibenclamide. Methods The study had eight groups in all with group 8 (control) consisting of five normoglycemic rats fed with normal rat pellets (Nrp). Diabetes was experimentally induced by intraperitoneal injection of alloxan to normoglycemic rats...
March 11, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28293709/metabolic-perturbation-to-enhance-polyketide-and-nonribosomal-peptide-antibiotic-production-using-triclosan-and-ribosome-targeting-drugs
#3
Yukinori Tanaka, Masumi Izawa, Yoshikazu Hiraga, Yuya Misaki, Tomoko Watanabe, Kozo Ochi
Although transcriptional activation of pathwayspecific positive regulatory genes and/or biosynthetic genes is primarily important for enhancing secondary metabolite production, reinforcement of substrate supply, as represented by primary metabolites, is also effective. For example, partial inhibition of fatty acid synthesis with ARC2 (an analog of triclosan) was found to enhance polyketide antibiotic production. Here, we demonstrate that this approach is effective even for industrial high-producing strains, for example enhancing salinomycin production by 40%, reaching 30...
March 14, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28288627/a-protocol-for-the-methodological-steps-used-to-evaluate-the-alignment-of-rehabilitation-services-in-the-western-cape-south-africa-with-the-national-rehabilitation-policy
#4
Gubela Mji, Anthea Rhoda, Sue Statham, Conran Joseph
BACKGROUND: Rehabilitation medicine plays an integral part in attainment of optimal functioning after injury or disease. The National Rehabilitation Policy of South Africa (NRP) (2000) highlights the need for access to professional health care services, redistribution and optimal utilisation of resources and research in the field of disability and rehabilitation. The government further ratified the Convention on the Rights of Persons with Disabilities (CRPD) (2007), which validate the urgency in advancing the agenda of persons with disabilities...
March 14, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28287006/opinions-regarding-neonatal-resuscitation-training-for-the-obstetric-physician-a-survey-of-neonatal-and-obstetric-training-program-directors
#5
C J Bruno, L Johnston, C Lee, P S Bernstein, D Goffman
PURPOSE: Our goal was to garner opinions regarding neonatal resuscitation training for obstetric physicians. We sought to evaluate obstacles to neonatal resuscitation training for obstetric physicians and possible solutions for implementation challenges. MATERIALS AND METHODS: We distributed a national survey via email to all neonatal-perinatal medicine fellowship directors and obstetric & gynecology residency programs directors in the United States. This survey was designed by a consensus method...
March 12, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28257831/silencing-of-galectin-1-inhibits-retinal-neovascularization-and-ameliorates-retinal-hypoxia-in-a-murine-model-of-oxygen-induced-ischemic-retinopathy
#6
Ning Yang, Wenxi Zhang, Tao He, Yiqiao Xing
Aberrant neovascularization is a consequence of inappropriate angiogenic signaling and contributes to several diseases. Although many regulators of pathogenic angiogenesis have been identified, the understanding of this process remains incomplete. Galectin-1 (Gal-1), as a homodimeric protein with a single carbohydrate-recognition domain, is implicated in several pathologic processes, including angiogenesis; however, its involvement in retinal neovascularization (RNV) remains unknown. Here, we investigated the anti-angiogenic effect of silencing Gal-1 through intravitreal injection in a mouse model of oxygen-induced retinopathy (OIR)...
February 28, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28255116/-nrp-1-expression-in-healing-process-of-traumatic-brain-injury-combined-with-tibial-fracture
#7
Zhengzheng Li, Junwei Zhao, Wei Luo, Kang Li, Shuanhu Lei, Yuliang Wang
To examine the expression of neuropilin-1 (Nrp-1), semaphorin 3A (Sema3A) and vascular endothelial growth factor (VEGF) in the healing process of tibial fracture after traumatic brain injury and to explore the mechanism of Nrp-1 in the formation of pathological callus after nerve injury.
 Methods: A total of 192 Wister female rats, 8-10 weeks old and weighing 220-250 g, were randomly divided into a control group (Group C), a tibia fracture group (Group F), a traumatic brain injury group (Group TBI), a traumatic brain injury combined with the tibia fracture group (Group TBI+F) (n=48 in each group)...
February 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28229977/non-ribosomal-peptide-synthetases-identifying-the-cryptic-gene-clusters-and-decoding-the-natural-product
#8
REVIEW
Mangal Singh, Sandeep Chaudhary, Dipti Sareen
Non-ribosomal peptide synthetases (NRPSs) and polyketide synthases (PKSs) present in bacteria and fungi are the major multi-modular enzyme complexes which synthesize secondary metabolites like the pharmacologically important antibiotics and siderophores. Each of the multiple modules of an NRPS activates a different amino or aryl acid, followed by their condensation to synthesize a linear or cyclic natural product. The studies on NRPS domains, the knowledge of their gene cluster architecture and tailoring enzymes have helped in the in silico genetic screening of the ever-expanding sequenced microbial genomic data for the identification of novel NRPS/PKS clusters and thus deciphering novel non-ribosomal peptides (NRPs)...
March 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28219195/-expression-and-clinical-significance-of-semaphorin-3a-in-serum-and-mononuclear-cells-in-patients-with-systemic-lupus-erythematosus
#9
H Gao, X X Ma, Q Guo, Y D Zou, Y C Zhong, L F Xie, M Shao, X W Zhang
Objective: To determine the expression of Sema3A in serum and peripheral blood mononuclear cells (PBMC) of patients with systemic lupus erythematosus (SLE), to analysis the correlation of Sema3A expression and SLE clinical manifestations and laboratory indexes, and to evaluate the diagnostic value of Sema3A in patients with SLE. Methods: The concentration of serum Sema3A was detected by enzyme-linked immuno sorbent assay (ELISA) in patients with SLE, healthy controls (HC) and diseases controls. In addition, the mRNA expression level of Sema3A was examined in PBMC by real-time polymerase chain reaction...
February 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28195835/neonatal-resuscitation-program-rolling-refresher-maintaining-chest-compression-proficiency-through-the-use-of-simulation-based-education
#10
Jose R Cepeda Brito, Patrick G Hughes, Kimberly S Firestone, Fabiana Ortiz Figueroa, Karan Johnson, Terra Ruthenburg, Robyn McKinney, M David Gothard, Rami Ahmed
BACKGROUND: Structured training courses have shown to improve patient outcomes; however, guidelines are inconsistently applied in up to 50% of all neonatal resuscitations. This is partly due to the fact that psychomotor skills needed for resuscitation decay within 6 months to a year from the completion of a certification course. Currently, there are no recommendations on how often refresher training should occur to prevent skill decay. PURPOSE: Improve provider proficiency and confidence in the performance of neonatal resuscitation with a focus on chest compression effectiveness...
February 10, 2017: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/28157836/continuous-capnography-monitoring-during-resuscitation-in-a-transitional-large-mammalian-model-of-asphyxial-cardiac-arrest
#11
Praveen Chandrasekharan, Payam Vali, Munmun Rawat, Bobby Mathew, Sylvia F Gugino, Carmon Koenigschnekt, Justin Helman, Jayasree Nair, Sara Berkelhamer, Satyan Lakshminrusimha
BACKGROUND: In neonates requiring chest compression (CC) during resuscitation, neonatal resuscitation program (NRP) recommends against relying on a single feedback device such as end-tidal carbon dioxide (ETCO2) or SpO2 to determine return of spontaneous circulation (ROSC) until more evidence becomes available. METHODS: We evaluated the role of monitoring ETCO2 during resuscitation in a lamb model of cardiac arrest induced by umbilical cord occlusion (n=21). Lambs were resuscitated as per NRP guidelines...
February 3, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28141909/improving-the-outcomes-of-organs-obtained-from-controlled-donation-after-circulatory-death-donors-using-abdominal-normothermic-regional-perfusion
#12
Eduardo Miñambres, Borja Suberviola, Beatriz Dominguez-Gil, Emilio Rodrigo, Juan Carlos Ruiz-San Millan, Juan Carlos Rodríguez-San Juan, Maria Angeles Ballesteros
Donation after circulatory death (DCD) has experienced a significant expansion over the last decade. However, warm ischemia results in a greater risk for transplantation. Indeed, controlled DCD (cDCD) was associated with inferior outcomes compared to donation after brain death. The use of abdominal normothermic regional perfusion (nRP) to restore blood flow prior to organ recovery in cDCD has been proposed as a better alternative than rapid recovery to reverse the effect of ischemia and improve recipients' outcome...
January 31, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28116017/emergency-medicine-resident-orientation-how-training-programs-get-their-residents-started
#13
Jillian McGrath, Michael Barrie, David P Way
INTRODUCTION: The first formal orientation program for incoming emergency medicine (EM) residents was started in 1976. The last attempt to describe the nature of orientation programs was by Brillman in 1995. Now almost all residencies offer orientation to incoming residents, but little is known about the curricular content or structure of these programs. The purpose of this project was to describe the current composition and purpose of EM resident orientation programs in the United States...
January 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28113206/oxygen-availability-and-metabolic-dynamics-during-i-mycobacterium-i-i-tuberculosis-i-latency
#14
Elebeoba May, Cheryl Sershen
OBJECTIVE: In vitro models of Mtb non-replicating persistence (NRP) suggest the rate of oxygen (O2) depletion is a significant determinant in persistence. However, few studies have characterized the metabolic association between slow and rapid O2 depletion rates and successful versus failed persistence. METHODS: We developed a theoretical model of Mtb metabolic adaptation that includes O2 driven genetic modulation of enzymes in the tricarboxylic acid cycle, energy, and redox recycling pathways...
September 2, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28103506/the-effect-of-anti-angiogenic-drugs-on-regulatory-t-cells-in-the-tumor-microenvironment
#15
REVIEW
Chenxi Hu, Xiaodong Jiang
A benefit of anti-angiogenic drugs is improved tumor immune tolerance. Regulatory T cells (Tregs) in the tumor microenvironment mediate tumor immune tolerance and anti-angiogenic drugs not only indirectly affect Tregs via dendritic cells (DCs) and myeloid-derived suppressor cells (MDSCs) but they can also act directly on Tregs causing immunosuppression. Specifically, these drugs may induce differentiation and chemotaxis and reduce the number and function of Tregs by targeting vascular endothelial growth factor receptor 2 (VEGFR-2) and neuropilin-1 (NRP-1) on the cell surface...
April 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28096704/neonatal-resuscitation-advances-in-training-and-practice
#16
REVIEW
Taylor Sawyer, Rachel A Umoren, Megan M Gray
Each year in the US, some four hundred thousand newborns need help breathing when they are born. Due to the frequent need for resuscitation at birth, it is vital to have evidence-based care guidelines and to provide effective neonatal resuscitation training. Every five years, the International Liaison Committee on Resuscitation (ILCOR) reviews the science of neonatal resuscitation. In the US, the American Heart Association (AHA) develops treatment guidelines based on the ILCOR science review, and the Neonatal Resuscitation Program (NRP) translates the AHA guidelines into an educational curriculum...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28089483/patterns-of-failure-after-radiotherapy-for-pediatric-patients-with-intracranial-ependymoma
#17
Fatima Tensaouti, Anne Ducassou, Léonor Chaltiel, Stéphanie Bolle, Xavier Muracciole, Bernard Coche-Dequeant, Claire Alapetite, Valérie Bernier, Line Claude, Stéphane Supiot, Aymeri Huchet, Christine Kerr, Elisabeth le Prisé, Anne Laprie
PURPOSE: To investigate the patterns of failure after radiotherapy for pediatric intracranial ependymoma and their correlation with dose parameters. METHODS: Between 2000 and 2013, 206 patients were treated in France. MRI scans at relapse were registered to the original planning CTs for topographic analysis of failure patterns. To compare relapse patients (RP) with non relapse patients (NRP), several dose parameters were derived from dose volume histograms. RESULTS: Over a median follow-up of 53...
March 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28087649/identification-of-unique-essential-proteins-from-a-m-tuberculosis-f15-lam4-kzn-phage-secretome-library
#18
Thamsanqa Emmanuel Chiliza, Manormoney Pillay, Balakrishna Pillay
Mycobacterium tuberculosis (Mtb) is the causative agent of tuberculosis disease (TB), the leading cause of death from bacterial infection worldwide. Although treatable, the resurgence of multi- and extensively-drug resistance TB is a major setback for the fight against TB globally. Consequently, there is an urgent need for new Mtb derived biomarkers for use in the design of new drugs and rapid point-of-care diagnostic or prognostic tools for management of TB transmission. Therefore, the present study aimed to identify unique Mtb secreted proteins from the extensively drug resistant Mtb F15/LAM4/KZN phage secretome library...
January 12, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28053702/outcomes-of-an-inpatient-refeeding-protocol-in-youth-with-anorexia-nervosa-rady-children-s-hospital-san-diego-university-of-california-san-diego
#19
Tamara R Maginot, Maya M Kumar, Jacqueline Shiels, Walter Kaye, Kyung E Rhee
BACKGROUND: Current guidelines for nutritional rehabilitation in hospitalized restrictive eating disorder patients recommend a cautious approach to refeeding. Several studies suggest that higher calorie diets may be safe and effective, but have traditionally excluded severely malnourished patients. The goal of this study was to evaluate the safety of a higher calorie nutritional rehabilitation protocol (NRP) in a broad sample of inpatients with restrictive eating disorders, including those who were severely malnourished...
2017: Journal of Eating Disorders
https://www.readbyqxmd.com/read/28004595/subsurface-nitrate-reduction-under-wetlands-takes-place-in-narrow-superficial-zones
#20
D Ribas, M Calderer, V Marti, A R Johnsen, J Aamand, B Nilsson, J K Jensen, P Engesgaard, C Morici
This study aims to investigate the depth distribution of the Nitrate Reduction Potential (NRP) on a natural and a re-established wetland. The obtained NRP provides a valuable data of the driving factors affecting denitrification, the Dissimilatory Nitrate Reduction to Ammonium (DNRA) process and the performance of a re-established wetland. Intact soil cores were collected and divided in slices for the determination of Organic Matter (OM) through Loss of Ignition (LOI) as well as Dissolved Organic Carbon (DOC) and NRP spiking nitrate in batch tests...
January 18, 2017: Environmental Technology
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