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https://www.readbyqxmd.com/read/28088123/antibody-dependent-cellular-cytotoxicity-and-influenza-virus
#1
REVIEW
Hillary A Vanderven, Sinthujan Jegaskanda, Adam K Wheatley, Stephen J Kent
Antibodies are a key defence against influenza infection and disease, but neutralizing antibodies are often strain-specific and of limited utility against divergent or pandemic viruses. There is now considerable evidence that influenza-specific antibodies with Fc-mediated effector functions, such as antibody-dependent cellular cytotoxicity (ADCC), can assist in the clearance of influenza infection in vitro and in animal models. Further, ADCC-mediating antibodies that recognize a broad array of influenza strains are common in humans, likely as a result of being regularly exposed to influenza infections...
January 11, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28088109/carbetocin-versus-oxytocin-for-prevention-of-post-partum-haemorrhage-at-caesarean-section-in-the-united-kingdom-an-economic-impact-analysis
#2
Helen A van der Nelson, Tim Draycott, Dimitrios Siassakos, Christopher W H Yau, Anthony J Hatswell
OBJECTIVE: To determine the economic impact of the introduction of carbetocin for the prevention of postpartum haemorrhage (PPH) at caesarean section, compared to oxytocin. STUDY DESIGN: The model is a decision tree conducted from a UK National Health Service perspective. 1500 caesarean sections (both elective and emergency) were modelled over a 12 month period. Efficacy data was taken from a published Cochrane meta-analysis, and costs from NHS Reference costs, the British National Formulary and the NHS electronic Medicines Information Tool...
January 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28088087/ethylene-biosynthesis-and-perception-during-ripening-of-loquat-fruit-eriobotrya-japonica-lindl
#3
E Alos, A Martinez-Fuentes, C Reig, C Mesejo, M J Rodrigo, M Agustí, L Zacarías
In order to gain insights into the controversial ripening behavior of loquat fruits, in the present study we have analyzed the expression of three genes related to ethylene biosynthesis (ACS1, ACO1 and ACO2), two ethylene receptors (ERS1a and ERS1b), one signal transduction component (CTR1) and one transcription factor (EIL1) in peel and pulp of loquat fruit during natural ripening and also in fruits treated with ethylene (10μLL(-1)) and 1-MCP (10μLL(-1)), an ethylene action inhibitor. In fruits attached to or detached from the tree, a slight increase in ethylene production was detected at the yellow stage, but the respiration rate declined progressively during ripening...
December 19, 2016: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28088073/strategies-to-design-clinical-studies-to-identify-predictive-biomarkers-in-cancer-research
#4
REVIEW
Jose Luis Perez-Gracia, Miguel F Sanmamed, Ana Bosch, Ana Patiño-Garcia, Kurt A Schalper, Victor Segura, Joaquim Bellmunt, Josep Tabernero, Christopher J Sweeney, Toni K Choueiri, Miguel Martín, Juan Pablo Fusco, Maria Esperanza Rodriguez-Ruiz, Alfonso Calvo, Celia Prior, Luis Paz-Ares, Ruben Pio, Enrique Gonzalez-Billalabeitia, Alvaro Gonzalez Hernandez, David Páez, Jose María Piulats, Alfonso Gurpide, Mapi Andueza, Guillermo de Velasco, Roberto Pazo, Enrique Grande, Pilar Nicolas, Francisco Abad-Santos, Jesus Garcia-Donas, Daniel Castellano, María J Pajares, Cristina Suarez, Ramon Colomer, Luis M Montuenga, Ignacio Melero
The discovery of reliable biomarkers to predict efficacy and toxicity of anticancer drugs remains one of the key challenges in cancer research. Despite its relevance, no efficient study designs to identify promising candidate biomarkers have been established. This has led to the proliferation of a myriad of exploratory studies using dissimilar strategies, most of which fail to identify any promising targets and are seldom validated. The lack of a proper methodology also determines that many anti-cancer drugs are developed below their potential, due to failure to identify predictive biomarkers...
December 30, 2016: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28088071/discrete-quasi-linear-viscoelastic-damping-analysis-of-connective-tissues-and-the-biomechanics-of-stretching
#5
Behzad Babaei, Aaron J Velasquez-Mao, Stavros Thomopoulos, Elliot L Elson, Steven D Abramowitch, Guy M Genin
The time- and frequency-dependent properties of connective tissue define their physiological function, but are notoriously difficult to characterize. Well-established tools such as linear viscoelasticity and the Fung quasi-linear viscoelastic (QLV) model impose forms on responses that can mask true tissue behavior. Here, we applied a more general discrete quasi-linear viscoelastic (DQLV) model to identify the static and dynamic time- and frequency-dependent behavior of rabbit medial collateral ligaments. Unlike the Fung QLV approach, the DQLV approach revealed that energy dissipation is elevated at a loading period of ∼10s...
December 22, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28088070/fatigue-life-of-bovine-meniscus-under-longitudinal-and-transverse-tensile-loading
#6
Jaremy J Creechley, Madison E Krentz, Trevor J Lujan
The knee meniscus is composed of a fibrous extracellular matrix that is subjected to large and repeated loads. Consequently, the meniscus is frequently torn, and a potential mechanism for failure is fatigue. The objective of this study was to measure the fatigue life of bovine meniscus when applying cyclic tensile loads either longitudinal or transverse to the principal fiber direction. Fatigue experiments consisted of cyclic loads to 60%, 70%, 80% or 90% of the predicted ultimate tensile strength until failure occurred or 20,000 cycles was reached...
December 27, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28088064/improved-cognition-while-cycling-in-parkinson-s-disease-patients-and-healthy-adults
#7
Audrey A Hazamy, Lori J P Altmann, Elizabeth Stegemöller, Dawn Bowers, Hyo Keun Lee, Jonathan Wilson, Michael S Okun, Chris J Hass
Persons with Parkinson's disease (PD) are typically more susceptible than healthy adults to impaired performance when two tasks (dual task interference) are performed simultaneously. This limitation has by many experts been attributed to limitations in cognitive resources. Nearly all studies of dual task performance in PD employ walking or balance-based motor tasks, which are commonly impaired in PD. These tasks can be performed using a combination of one or two executive function tasks. The current study examined whether persons with PD would demonstrate greater dual task effects (DTEs) on cognition compared to healthy older adults (HOAs) during a concurrent cycling task...
January 11, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28088057/a-systematic-review-of-adult-attachment-and-social-anxiety
#8
REVIEW
Ray P C Manning, Joanne M Dickson, Jasper Palmier-Claus, Alexandra Cunliffe, Peter J Taylor
BACKGROUND: Attachment has been implicated in the development of social anxiety. Our aim was to synthesise the extant literature exploring the role of adult attachment in these disorders. METHOD: Search terms relating to social anxiety and attachment were entered into MEDLINE, PsycINFO and Web of Science. Risk of bias of included studies was assessed using and adapted version of the Agency for Healthcare Research and Quality assessment tool. Eligible studies employed validated social anxiety and attachment assessments in adult clinical and analogue samples...
December 19, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28088032/oral-cannabidiol-does-not-produce-a-signal-for-abuse-liability-in-frequent-marijuana-smokers
#9
Shanna Babalonis, Margaret Haney, Robert J Malcolm, Michelle R Lofwall, Victoria R Votaw, Steven Sparenborg, Sharon L Walsh
BACKGROUND: Cannabidiol (CBD) is a naturally occurring constituent of the marijuana plant. In the past few years, there has been great interest in the therapeutic effects of isolated CBD and it is currently being explored for numerous disease conditions (e.g., pain, epilepsy, cancer, various drug dependencies). However, CBD remains a Schedule I drug on the U.S. Controlled Substances Act (CSA). Despite its status, there are no well-controlled data available regarding its abuse liability...
December 14, 2016: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28088010/challenges-and-opportunities-for-improving-food-quality-and-nutrition-through-plant-biotechnology
#10
REVIEW
David Francis, John J Finer, Erich Grotewold
Plant biotechnology has been around since the advent of humankind, resulting in tremendous improvements in plant cultivation through crop domestication, breeding and selection. The emergence of transgenic approaches involving the introduction of defined DNA sequences into plants by humans has rapidly changed the surface of our planet by further expanding the gene pool used by plant breeders for plant improvement. Transgenic approaches in food plants have raised concerns on the merits, social implications, ecological risks and true benefits of plant biotechnology...
January 11, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/28088009/cardiac-output-and-systemic-vascular-resistance-clinical-assessment-compared-with-a-noninvasive-objective-measurement-in-children-with-shock
#11
Asma Razavi, Christopher J L Newth, Robinder G Khemani, Fernando Beltramo, Patrick A Ross
PURPOSE: To evaluate physician assessment of cardiac output and systemic vascular resistance in patients with shock compared with an ultrasonic cardiac output monitor (USCOM). To explore potential changes in therapy decisions if USCOM data were available using physician intervention answers. STUDY DESIGN: Double-blinded, prospective, observational study in a tertiary hospital pediatric intensive care unit. Forty children (<18years) admitted with shock, requiring ongoing volume resuscitation or inotropic support...
December 28, 2016: Journal of Critical Care
https://www.readbyqxmd.com/read/28087994/commentary-on-mauf-s-jentzsch-t-laberke-pj-thali-mj-bartsch-c-why-we-need-postmortem-analysis-of-cardiac-implantable-electronic-devices-j-forensic-sci-2016-61-4-988-92
#12
Ellen Moffatt, Zian H Tseng
No abstract text is available yet for this article.
January 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28087986/barriers-to-access-to-opioid-medicines-for-patients-with-opioid-dependence-a-review-of-legislation-and-regulations-in-eleven-central-and-eastern-european-countries
#13
Marjolein J M Vranken, Aukje K Mantel-Teeuwisse, Saskia Jünger, Lukas Radbruch, Willem Scholten, John A Lisman, Marija Subataite, Marie-Hélène D B Schutjens
BACKGROUND AND AIMS: Barriers linked to drug control systems are considered to contribute to inequitable access to controlled medicines, leaving millions of people in pain and suffering. Most studies focus on access to opioids for the treatment of severe (cancer) pain. This study aims to identify specific access barriers for patients with opioid dependence in legislation and regulations of 11 Central and Eastern European countries. METHODS: This study builds on a previous analysis of legislation and regulations as part of the EU 7th Framework Access To Opioid Medication in Europe (ATOME) project...
January 14, 2017: Addiction
https://www.readbyqxmd.com/read/28087985/prophylactic-tributyrin-treatment-mitigates-chronic-binge-alcohol-induced-intestinal-barrier-and-liver-injury
#14
Gail A Cresci, Bryan Glueck, Megan R McMullen, Wei Xin, Danielle Allende, Laura E Nagy
BACKGROUND/AIM: Impaired gut-liver axis is a potential factor contributing to alcoholic liver disease. Ethanol depletes intestinal integrity and causes gut dysbiosis. Butyrate, a fermentation byproduct of gut microbiota, is altered negatively following chronic ethanol exposure. This study aimed to determine whether prophylactic tributyrin could protect the intestinal barrier and liver in mice during combined chronic-binge ethanol exposure. METHODS: C57BL/6 J mice exposed to 5% v/v ethanol-containing diet for 10 days received a single ethanol gavage (5 g/kg) 9 hrs prior to euthanasia...
January 14, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28087972/lack-of-effect-of-oral-cabotegravir-on-the-pharmacokinetics-of-a-levonorgestrel-ethinyl-estradiol-containing-oral-contraceptive-in-healthy-adult-females
#15
C Trezza, S L Ford, E Gould, Y Lou, C Huang, J M Ritter, A M Buchanan, W Spreen, P Patel
AIM(S): This study aimed to investigate whether cabotegravir (CAB), an integrase inhibitor in development for treatment and prevention of HIV-1, influences the pharmacokinetics (PK) of a levonorgestrel (LNG) and ethinyl estradiol (EE)-containing oral contraceptive (OC) in healthy women. METHODS: In this open-label, fixed-sequence crossover study, healthy female subjects received LNG 0.15 mg/EE 0.03 mg tablet once daily Days 1-10 alone and with oral CAB 30 mg once daily Days 11-21...
January 14, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28087952/an-observational-study-of-trigeminal-neuralgia-patients-taking-carbamazepine-during-the-fasting-month-of-ramadan
#16
A J Ajura, S H Lau, S Nur Suffia
INTRODUCTION: Trigeminal neuralgia is an agonising orofacial pain affecting unilaterally the distribution of the trigeminal nerve and it usually occurs in the middle and older age groups. Carbamazepine which is an anti-neuralgic as well as an anti-convulsant medication is the first line drug for treatment of trigeminal neuralgia. It is commonly taken as one tablet (200 mg) three times a day. MATERIALS AND METHODS: This is an observational study carried out from April to September 2014 to determine how Muslim patients on carbamazepine treatment for trigeminal neuralgia cope with their neuralgic pain...
December 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28087950/amyloid-prions-in-fungi
#17
Sven J Saupe, Daniel F Jarosz, Heather L True
Prions are infectious protein polymers that have been found to cause fatal diseases in mammals. Prions have also been identified in fungi (yeast and filamentous fungi), where they behave as cytoplasmic non-Mendelian genetic elements. Fungal prions correspond in most cases to fibrillary β-sheet-rich protein aggregates termed amyloids. Fungal prion models and, in particular, yeast prions were instrumental in the description of fundamental aspects of prion structure and propagation. These models established the "protein-only" nature of prions, the physical basis of strain variation, and the role of a variety of chaperones in prion propagation and amyloid aggregate handling...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087948/regulation-of-immunity-to-tuberculosis
#18
Susanna Brighenti, Diane J Ordway
Immunity against Mycobacterium tuberculosis requires a balance between adaptive immune responses to constrain bacterial replication and the prevention of potentially damaging immune activation. Regulatory T (Treg) cells express the transcription factor Foxp3+ and constitute an essential counterbalance of inflammatory Th1 responses and are required to maintain immune homeostasis. The first reports describing the presence of Foxp3-expressing CD4+ Treg cells in tuberculosis (TB) emerged in 2006. Different Treg cell subsets, most likely specialized for different tissues and microenvironments, have been shown to expand in both human TB and animal models of TB...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087946/invasion-of-host-cells-and-tissues-by-uropathogenic-bacteria
#19
Adam J Lewis, Amanda C Richards, Matthew A Mulvey
Within the mammalian urinary tract uropathogenic bacteria face many challenges, including the shearing flow of urine, numerous antibacterial molecules, the bactericidal effects of phagocytes, and a scarcity of nutrients. These problems may be circumvented in part by the ability of uropathogenic Escherichia coli and several other uropathogens to invade the epithelial cells that line the urinary tract. By entering host cells, uropathogens can gain access to additional nutrients and protection from both host defenses and antibiotic treatments...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087936/fungal-ligninolytic-enzymes-and-their-applications
#20
Miia R Mäkelä, Erin L Bredeweg, Jon K Magnuson, Scott E Baker, Ronald P de Vries, Kristiina Hildén
The global push toward an efficient and economical biobased economy has driven research to develop more cost-effective applications for the entirety of plant biomass, including lignocellulosic crops. As discussed elsewhere (Karlsson M, Atanasova L, Funck Jensen D, Zeilinger S, in Heitman J et al. [ed], Tuberculosis and the Tubercle Bacillus, 2nd ed, in press), significant progress has been made in the use of polysaccharide fractions from lignocellulose, cellulose, and various hemicellulose types. However, developing processes for use of the lignin fraction has been more challenging...
December 2016: Microbiology Spectrum
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