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https://www.readbyqxmd.com/read/29353442/flexible-pseudotyping-of-retrovirus-using-recombinase-mediated-cassette-exchange
#1
Hugo R Soares, Ana I Almeida, Hélio A Tomás, Paula M Alves, Ana S Coroadinha
OBJECTIVE: Develop an engineered cell line containing two flexible gene expression systems enabling the continuous production of tailor-made recombinant gammaretrovirus with predictable productivities through targeted integration. RESULTS: Dual-FLEX cells (dFLEX) contain two independent recombinase-mediated cassette exchange (RMCE) systems which confer flexibility to the expression of different transgene and envelope combinations. The flexible envelope expression in dFLEX cells was validated by pseudotyping retrovirus particles with three different viral envelope proteins-GaLV, 4070A and VSV-G...
January 20, 2018: Biotechnology Letters
https://www.readbyqxmd.com/read/29353387/inter-individual-variation-in-health-and-disease-associated-with-pulmonary-infectious-agents
#2
Kirsten C Verhein, Heather L Vellers, Steven R Kleeberger
Respiratory infectious diseases resulting from bacterial or viral pathogens such as Mycobacterium tuberculosis, Streptococcus pneumoniae, respiratory syncytial virus (RSV), or influenza, are major global public health concerns. Lower respiratory tract infections are leading causes of morbidity and mortality, only behind ischemic heart disease and stroke (GBD 2015 LRI Collaborators in Lancet Infect Dis 17(11):1133-1161, 2017). Developing countries are particularly impacted by these diseases. However, while many are infected with viruses such as RSV (> 90% of all individuals are infected by age 2), only sub-populations develop severe disease...
January 20, 2018: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/29353376/injury-prevention-in-baseball-from-youth-to-the-pros
#3
REVIEW
Heath P Melugin, Nels D Leafblad, Christopher L Camp, Stan Conte
PURPOSE OF REVIEW: This review examines recent literature on injury epidemiology and prevention in the sport of baseball from youth to professional levels. RECENT FINDINGS: Overuse is the predominant mechanism of injury in youth baseball players. Newer stretching and exercise protocols may help prevent these injuries. At the professional level, however, overuse has not been proven to correlate with increased injury incidence, but pitch counts are still monitored...
January 20, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29353337/a-retrospective-analysis-of-5-fluorouracil-plus-cisplatin-as-first-line-chemotherapy-in-the-recent-treatment-strategy-for-patients-with-metastatic-or-recurrent-esophageal-squamous-cell-carcinoma
#4
Shuji Hiramoto, Ken Kato, Hirokazu Shoji, Natsuko Okita, Atsuo Takashima, Yoshitaka Honma, Satoru Iwasa, Tetsuya Hamaguchi, Yasuhide Yamada, Yasuhiro Shimada, Narikazu Boku
BACKGROUND: Patients with metastatic or recurrent esophageal squamous cell carcinoma (ESCC) have a poor prognosis. For decades, the most widely used first-line chemotherapy regimen for these patients has been the combination of 5-fluorouracil + cisplatin (CF). However, prognostic factors of CF as first-line chemotherapy for ESCC have not been clarified. METHODS: A total of 187 patients with metastatic or recurrent esophageal ESCC treated with CF at the National Cancer Center Hospital between January 2001 and December 2012 were enrolled in the study...
January 20, 2018: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29353333/frailty-assessment-in-heart-failure-an-overview-of-the-multi-domain-approach
#5
REVIEW
Julee McDonagh, Caleb Ferguson, Phillip J Newton
PURPOSE OF REVIEW: The study aims (1) to provide a contemporary description of frailty assessment in heart failure and (2) to provide an overview of multi-domain frailty assessment in heart failure. RECENT FINDINGS: Frailty assessment is an important predictive measure for mortality and hospitalisation in individuals with heart failure. To date, there are no frailty assessment instruments validated for use in heart failure. This has resulted in significant heterogeneity between studies regarding the assessment of frailty...
January 20, 2018: Current Heart Failure Reports
https://www.readbyqxmd.com/read/29353319/management-strategies-for-noncardiac-surgery-following-a-coronary-artery-event
#6
REVIEW
Thomas F Whayne, Sibu P Saha
PURPOSE OF REVIEW: Coronary artery event includes acute coronary syndrome (ACS), percutaneous coronary intervention (PCI), and coronary artery bypass graft (CABG) surgery. Following such an event, risk of noncardiac surgery is increased. Of major concern is what can make this surgery safer? RECENT FINDINGS: High functional capacity improves cardiovascular (CV) risk; at least 4.0 metabolic equivalents (METs) on stress test are favorable. Risk scores can suggest need for further evaluation...
January 20, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29353308/single-stage-autotrophic-nitrogen-removal-process-at-high-loading-rate-granular-reactor-performance-kinetics-and-microbial-characterization
#7
Feiyue Qian, Abebe Temesgen Gebreyesus, Jianfang Wang, Yaoliang Shen, Wenru Liu, Lulin Xie
For the possible highest performance of single-stage combined partial nitritation/anammox (PNA) process, a continuous complete-mix granular reactor was operated at progressively higher nitrogen loading rate. The variations in bacterial community structure of granules were also characterized using high-throughput pyrosequencing, to give a detail insight to the relationship between reactor performance and functional organism abundance within completely autotrophic nitrogen removal system. In 172 days of operation, a superior total nitrogen (TN) removal rate over 3...
January 20, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29353251/cardiopulmonary-resuscitation-the-science-behind-the-hands
#8
REVIEW
Andrew W Harris, Peter J Kudenchuk
Sudden cardiac arrest is a leading cause of death worldwide. Despite significant advances in resuscitation science since the initial use of external chest compressions in humans nearly 60 years ago, there continues to be wide variability in rates of successful resuscitation across communities. The American Heart Association (AHA) and European Resuscitation Council emphasise the importance of high-quality chest compressions as the foundation of resuscitation care. We review the physiological basis for the association between chest compression quality and clinical outcomes and the scientific basis for the AHA's key metrics for high-quality cardiopulmonary resuscitation...
January 20, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29353214/effects-of-poor-sleep-quality-on-brain-functional-connectivity-revealed-by-wavelet-based-coherence-analysis-using-nirs-methods-in-elderly-subjects
#9
Lingguo Bu, Dawei Wang, Congcong Huo, Gongcheng Xu, Zengyong Li, Jianfeng Li
OBJECTIVE: Poor sleep quality, which is typically related to impairments in cognitive control, is pervasive among the elderly. However, the brain function mechanisms underlying the association between sleep and elderly behavior remain elusive. This study aims to assess the effects of poor sleep quality on low-frequency neural oscillations based on the wavelet phase coherence (WPCO) and wavelet amplitude (WA) of oxyhemoglobin concentration changes (Delta [HbO2]) measured through near-infrared spectroscopy (NIRS) method...
January 17, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29353178/impulsivity-in-early-psychosis-a-complex-link-with-violent-behaviour-and-a-target-for-intervention
#10
V Moulin, P Golay, J Palix, P S Baumann, M-M Gholamrezaee, A Azzola, J Gasser, K Q Do, L Alameda, P Conus
BACKGROUND: Violent behaviour (VB) occurs in first episode of schizophrenia and can have devastating impact both on victims and patients themselves. A better knowledge of the underlying mechanisms of VB may pave the way to preventive treatments. OBJECTIVES: 1) To explore the nature of the link between impulsivity and VB in early psychosis (EP) patients; 2) To explore the interactions between impulsivity and substance abuse, insight, and positive symptoms, the main dynamic risk factors of VB described to date...
January 17, 2018: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/29353118/magnesium-supplementation-pharmacokinetics-in-cardiac-surgery-patients-with-normal-renal-function
#11
Peter Biesenbach, Johan Mårtensson, Eduardo Osawa, Glenn Eastwood, Salvatore Cutuli, Jessica Fairley, George Matalanis, Rinaldo Bellomo
BACKGROUND: Intravenous magnesium is routinely administered in intensive care units (ICU) to treat arrhythmias after cardiothoracic surgery. There are no data on the pharmacokinetics of continuous magnesium infusion therapy. OBJECTIVE: To investigate the pharmacokinetics of continuous magnesium infusion, focusing on serum and urinary magnesium concentration, volume of distribution and half-life. METHODS: We administered a 10 mmol bolus of magnesium-sulfate followed by a continuous infusion of 3 mmol/h for 12 h in twenty cardiac surgery patients...
January 11, 2018: Journal of Critical Care
https://www.readbyqxmd.com/read/29353115/efficient-removal-of-acid-green-25-dye-from-wastewater-using-activated-prunus-dulcis-as-biosorbent-batch-and-column-studies
#12
Suyog N Jain, Parag R Gogate
Biosorbent synthesized from dead leaves of Prunus Dulcis with chemical activation during the synthesis was applied for the removal of Acid Green 25 dye from wastewater. The obtained biosorbent was characterized using Brunauer-Emmett-Teller analysis, Fourier transform-infrared spectroscopy and scanning electron microscopy measurements. It was demonstrated that alkali treatment during the synthesis significantly increased surface area of biosorbent from 67.205 to 426.346 m2/g. The effect of various operating parameters on dye removal was investigated in batch operation and optimum values of parameters were established as pH of 2, 14 g/L as the dose of natural biosorbent and 6 g/L as the dose of alkali treated biosorbent...
January 17, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29353034/impact-of-targeted-scanning-protocols-on-perinatal-outcomes-in-pregnancies-at-risk-of-placenta-accreta-spectrum-or-vasa-previa
#13
Yaakov Melcer, Eric Jauniaux, Shlomit Maymon, Anna Tsviban, Marina Pekar-Zlotin, Moshe Betser, Ron Maymon
BACKGROUND: Placenta accreta spectrum (PAS) and vasa previa (VP) are congenital disorders of placentation associated with high morbidity and mortality for both mothers and newborns when undiagnosed before delivery. Prenatal diagnosis of these conditions is essential to allow multidisciplinary management and thus improve perinatal outcomes. OBJECTIVES: To compare perinatal outcome in women with PAS or VP before and after implementation of targeted scanning protocols...
January 15, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29353013/bottom-up-gamma-maintenance-in-various-disorders
#14
REVIEW
E Garcia-Rill, S Mahaffey, James R Hyde, F J Urbano
Maintained gamma band activity is a key element of higher brain function, participating in perception, executive function, and memory. The pedunculopontine nucleus (PPN), as part of the reticular activating system (RAS), is a major source of the "bottom-up" flow of gamma activity to higher regions. However, interruption of gamma band activity is associated with a number of neurological and psychiatric disorders. This review will focus on the role of the PPN in activating higher regions to induce arousal and descending pathways to modulate posture and locomotion...
January 15, 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29352997/microglia-and-neonatal-brain-injury
#15
Carina Mallard, Marie-Eve Tremblay, Zinaida S Vexler
Microglial cells are now recognized as the "gate-keepers" of healthy brain microenvironment with their disrupted functions adversely affecting neurovascular integrity, neuronal homeostasis, and network connectivity. The perception that these cells are purely toxic under neurodegenerative conditions has been challenged by a continuously-increasing understanding of their complexity, the existence of a broad array of microglial phenotypes, and their ability to rapidly change in a context-dependent manner to attenuate or exacerbate injuries of different nature...
January 15, 2018: Neuroscience
https://www.readbyqxmd.com/read/29352991/molecular-monitoring-of-dihydrofolatereductase-dhfr-and-dihydropteroatesynthetase-dhps-associated-with-sulfadoxine-pyrimethamine-resistance-in-plasmodium-vivax-isolates-of-palawan-philippines
#16
Alison Paolo Bareng, Fe Esperanza Espino, Wanna Chaijaroenkul, Kesara Na-Bangchang
The emergence of drug-resistant Plasmodium vivax poses problems for malaria control and elimination in some parts of the world, especially in developing countries where individuals are routinely exposed to the infection. The aim of this study was to determine the single nucleotide polymorphisms (SNPs) in dihydropteroate synthase (pvdhps) and dihydrofolate reductase (pvdhfr) genes associated with sulfadoxine-pyrimethamine (SP) drug resistance among P. vivax isolates collected in Palawan, Philippines. Genetic polymorphisms of pvdhps and pvdhfr were analysed by nested PCR...
January 15, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29352943/how-does-temperature-govern-mechanisms-of-starch-changes-during-extrusion
#17
Nicolas Logié, Guy Della Valle, Agnès Rolland-Sabaté, Nicolas Descamps, Jérémie Soulestin
Potato and pea starches were processed on a twin-screw extruder under various moisture and thermomechanical conditions, chosen to keep material temperature Te close to starch melting temperature, Tm, whilst avoiding die expansion. Extruded rods were analysed by asymmetrical flow field flow fractionation coupled with light scattering, X-ray diffraction, DSC, and light microscopy with image analysis. Molar mass of extruded materials decreased more for potato than for pea starch, when specific mechanical energy SME increased, likely because of larger amylopectin sensitivity to shear...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29352920/biomass-based-magnetic-fluorescent-nanoparticles-one-step-scalable-synthesis-application-as-drug-carriers-and-mechanism-study
#18
Lei Li, Feijun Wang, Ziqiang Shao
A biomass-based magnetic fluorescent nanoparticle (MFNPs) was successively in situ synthesized via a one-step high-gravity approach, which constructed by a magnetic core of Fe3O4 nanoparticles, the fluorescent marker of carbon dots (CDs), and shells of chitosan (CS). The obtained MFNPs had a 10 nm average diameter and narrow particle size distribution, low cytotoxicity, superior fluorescent emission and superparamagnetic properties. The encapsulating and release 5-fluorouracil experiments confirmed that the introduction of CS/CDs effectively improved the drug loading capacity...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29352820/concordance-and-predictors-of-concordance-of-children-s-dietary-intake-as-reported-via-ecological-momentary-assessment-and-24-h-recall
#19
Sydney G O'Connor, Wangjing Ke, Eldin Dzubur, Susan Schembre, Genevieve F Dunton
OBJECTIVE: To provide preliminary evidence in support of using ecological momentary assessment (EMA), a real-time data capture method involving repeated assessments, to measure dietary intake in children by examining the concordance of children's dietary reports through EMA and 24 h recall. DESIGN: Children completed eight days of EMA surveys, reporting on recent dietary intake of four pre-specified food categories ('Fruits or Vegetables', 'Chips or Fries', 'Pastries or Sweets', 'Soda or Energy Drinks'), and completed two 24 h recalls during the same period...
January 21, 2018: Public Health Nutrition
https://www.readbyqxmd.com/read/29352818/validity-and-reliability-of-the-palliative-care-transition-measure-for-caregivers-pctm-c
#20
Daniela D'Angelo, Chiara Mastroianni, Marco Artico, Valentina Biagioli, Roberto Latina, Michela Guarda, Michela Piredda, Maria Grazia De Marinis
OBJECTIVE: Patients suffering from advanced disease face different care transitions. The transition from acute to palliative care is challenging and may lead to the discontinuity of care. Family caregivers become important sources of information, as patients begin to experience difficulties in coping with emotional transition events. The Care Transition Measure was developed to evaluate care transitions as experienced by the elderly. It has never been used in palliative care. The aim of this study was to test the validity and reliability of a modified version of the Palliative Care Transition Measure, specifically the Palliative Care Transition Measure for Caregivers (PCTM-C)...
January 21, 2018: Palliative & Supportive Care
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