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https://www.readbyqxmd.com/read/28820384/chronic-wasting-disease-prion-strain-emergence-and-host-range-expansion
#1
Allen Herbst, Camilo Duque Velásquez, Elizabeth Triscott, Judd M Aiken, Debbie McKenzie
Human and mouse prion proteins share a structural motif that regulates resistance to common chronic wasting disease (CWD) prion strains. Successful transmission of an emergent strain of CWD prion, H95(+), into mice resulted in infection. Thus, emergent CWD prion strains may have higher zoonotic potential than common strains.
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28812985/interventions-to-support-integrated-psychological-care-and-holistic-health-outcomes-in-paediatrics
#2
REVIEW
Roz Shafran, Sophie D Bennett, Mhairi McKenzie Smith
There are strong calls from many national and international bodies for there to be a 'holistic' and integrated approach to the understanding and management of psychological and physical health needs. Such holistic approaches are characterized by the treatment of the whole person, taking into account mental and social factors, rather than just the symptoms of a disease. Holistic approaches can impact on mental and physical health and are cost-effective. Several psychological interventions have demonstrated efficacy in improving holistic health outcomes, for example Cognitive Behaviour Therapy, Behavioural Therapies and Problem Solving Therapies...
August 16, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28811059/an-infant-with-epilepsy-and-recurrent-hemiplegia-due-to-compound-heterozygous-variants-in-atp1a2
#3
Colin Wilbur, Sarah E Buerki, Ilaria Guella, Eric B Toyota, Daniel M Evans, Marna B McKenzie, Anita Datta, Aspasia Michoulas, Shelin Adam, Margot I Van Allen, Tanya N Nelson, Matthew J Farrer, Mary B Connolly, Michelle Demos
BACKGROUND: Pathogenic heterozygous variants in the ATP1A2 gene have most commonly been associated with familial hemiplegic migraine. However, a wide spectrum of phenotypes that include alternating hemiplegia of childhood and epilepsy have been described. PATIENT DESCRIPTION: We describe a boy who presented at age three months with a complex phenotype that included epilepsy, nonepileptic paroxysmal events, and recurrent hemiplegia. Magnetic resonance imaging demonstrated unilateral cortical edema during a severe episode of hemiplegia that was followed by a persistent mild hemiparesis...
June 8, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28810940/unique-associations-among-emotion-dysregulation-dimensions-and-aggressive-tendencies-a-multisite-study
#4
Patrizia Velotti, Robert Casselman, Carlo Garofalo, Melissa McKenzie
Although problems with emotion regulation (ER) have long been associated with internalizing symptoms, only recently hasan ER framework been applied to the study of aggression. Therefore, little is known about the unique and independent associations between specific domains of the ER construct and different kinds of aggressive tendencies. We sought to explore these associations in two independent samples of young adults. Furthermore, we tested whether gender moderated the proposed emotion dysregulation-aggression link...
August 15, 2017: Violence and Victims
https://www.readbyqxmd.com/read/28810895/understanding-the-cluster-randomised-crossover-design-a-graphical-illustraton-of-the-components-of-variation-and%C3%A2-a-sample-size%C3%A2-tutorial
#5
Sarah J Arnup, Joanne E McKenzie, Karla Hemming, David Pilcher, Andrew B Forbes
BACKGROUND: In a cluster randomised crossover (CRXO) design, a sequence of interventions is assigned to a group, or 'cluster' of individuals. Each cluster receives each intervention in a separate period of time, forming 'cluster-periods'. Sample size calculations for CRXO trials need to account for both the cluster randomisation and crossover aspects of the design. Formulae are available for the two-period, two-intervention, cross-sectional CRXO design, however implementation of these formulae is known to be suboptimal...
August 15, 2017: Trials
https://www.readbyqxmd.com/read/28807782/modulating-protein-protein-interactions-of-the-mitotic-polo-like-kinases-to-target-mutant-kras
#6
Ana J Narvaez, Suzan Ber, Alex Crooks, Amy Emery, Bryn Hardwick, Estrella Guarino Almeida, David J Huggins, David Perera, Meredith Roberts-Thomson, Roberta Azzarelli, Fiona E Hood, Ian A Prior, David W Walker, Richard Boyce, Robert G Boyle, Samuel P Barker, Christopher J Torrance, Grahame J McKenzie, Ashok R Venkitaraman
Mutations activating KRAS underlie many forms of cancer, but are refractory to therapeutic targeting. Here, we develop Poloppin, an inhibitor of protein-protein interactions via the Polo-box domain (PBD) of the mitotic Polo-like kinases (PLKs), in monotherapeutic and combination strategies to target mutant KRAS. Poloppin engages its targets in biochemical and cellular assays, triggering mitotic arrest with defective chromosome congression. Poloppin kills cells expressing mutant KRAS, selectively enhancing death in mitosis...
July 27, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28806549/liming-impacts-on-soils-crops-and-biodiversity-in-the-uk-a-review
#7
REVIEW
J E Holland, A E Bennett, A C Newton, P J White, B M McKenzie, T S George, R J Pakeman, J S Bailey, D A Fornara, R C Hayes
Fertile soil is fundamental to our ability to achieve food security, but problems with soil degradation (such as acidification) are exacerbated by poor management. Consequently, there is a need to better understand management approaches that deliver multiple ecosystem services from agricultural land. There is global interest in sustainable soil management including the re-evaluation of existing management practices. Liming is a long established practice to ameliorate acidic soils and many liming-induced changes are well understood...
August 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28803996/perioperative-hemodynamics-and-outcomes-of-patients-on-metyrosine-undergoing-resection-of-pheochromocytoma-or-paraganglioma
#8
James J Butz, Toby N Weingarten, Alexandre N Cavalcante, Irina Bancos, William F Young, Travis J McKenzie, Darrell R Schroeder, David P Martin, Juraj Sprung
INTRODUCTION: To describe outcomes of patients with metyrosine (MET) pretreatment for abdominal surgical resection of pheochromocytoma or paraganglioma (PCC/PGL) compared with patients who had phenoxybenzamine (PBZ) pretreatment. METHODS: Retrospective review of perioperative outcomes for PCC/PGL patients treated with MET and propensity-matched comparison of MET and PBZ (MET + PBZ) with PBZ alone. RESULTS: MET preparation was given in 63 cases (26 laparoscopic and 37 open, of which 55 also received PBZ)...
August 10, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28802042/orco-mutagenesis-causes-loss-of-antennal-lobe-glomeruli-and-impaired-social-behavior-in-ants
#9
Waring Trible, Leonora Olivos-Cisneros, Sean K McKenzie, Jonathan Saragosti, Ni-Chen Chang, Benjamin J Matthews, Peter R Oxley, Daniel J C Kronauer
Life inside ant colonies is orchestrated with diverse pheromones, but it is not clear how ants perceive these social signals. It has been proposed that pheromone perception in ants evolved via expansions in the numbers of odorant receptors (ORs) and antennal lobe glomeruli. Here, we generate the first mutant lines in the clonal raider ant, Ooceraea biroi, by disrupting orco, a gene required for the function of all ORs. We find that orco mutants exhibit severe deficiencies in social behavior and fitness, suggesting they are unable to perceive pheromones...
August 10, 2017: Cell
https://www.readbyqxmd.com/read/28800624/destabilizing-polymorphism-in-cervid-prion-protein-hydrophobic-core-determines-prion-conformation-and-conversion-efficiency
#10
Samia Hannaoui, Sara Amidian, Yo Ching Cheng, Camilo Duque Velásquez, Lyudmyla Dorosh, Sampson Law, Glenn Telling, Maria Stepanova, Debbie McKenzie, Holger Wille, Sabine Gilch
Prion diseases are infectious neurodegenerative disorders of humans and animals caused by misfolded forms of the cellular prion protein PrPC. Prions cause disease by converting PrPC into aggregation-prone PrPSc. Chronic wasting disease (CWD) is the most contagious prion disease with substantial lateral transmission, affecting free-ranging and farmed cervids. Although the PrP primary structure is highly conserved among cervids, the disease phenotype can be modulated by species-specific polymorphisms in the prion protein gene...
August 11, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28790460/role-of-domestic-ducks-in-the-emergence-of-a-new-genotype-of-highly-pathogenic-h5n1-avian-influenza-a-viruses-in-bangladesh
#11
Subrata Barman, Atanaska Marinova-Petkova, M Kamrul Hasan, Sharmin Akhtar, Rabeh El-Shesheny, Jasmine Cm Turner, John Franks, David Walker, Jon Seiler, Kimberly Friedman, Lisa Kercher, Trushar Jeevan, Daniel Darnell, Ghazi Kayali, Lisa Jones-Engel, Pamela McKenzie, Scott Krauss, Richard J Webby, Robert G Webster, Mohammed M Feeroz
Highly pathogenic avian influenza H5N1 viruses were first isolated in Bangladesh in February 2007. Subsequently, clades 2.2.2, 2.3.4.2 and 2.3.2.1a were identified in Bangladesh, and our previous surveillance data revealed that by the end of 2014, the circulating viruses exclusively comprised clade 2.3.2.1a. We recently determined the status of circulating avian influenza viruses in Bangladesh by conducting surveillance of live poultry markets and waterfowl in wetland areas from February 2015 through February 2016...
August 9, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28777935/de-novo-mutations-in-ywhag-cause-early-onset-epilepsy
#12
Ilaria Guella, Marna B McKenzie, Daniel M Evans, Sarah E Buerki, Eric B Toyota, Margot I Van Allen, Mohnish Suri, Frances Elmslie, Marleen E H Simon, Koen L I van Gassen, Delphine Héron, Boris Keren, Caroline Nava, Mary B Connolly, Michelle Demos, Matthew J Farrer
Massively parallel sequencing has revealed many de novo mutations in the etiology of developmental and epileptic encephalopathies (EEs), highlighting their genetic heterogeneity. Additional candidate genes have been prioritized in silico by their co-expression in the brain. Here, we evaluate rare coding variability in 20 candidates nominated with the use of a reference gene set of 51 established EE-associated genes. Variants within the 20 candidate genes were extracted from exome-sequencing data of 42 subjects with EE and no previous genetic diagnosis...
August 3, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28771917/5b9-a-monoclonal-anti-platelet-factor-4-heparin-igg-with-a-human-fc-fragment-that-mimics-heparin-induced-thrombocytopenia-antibodies
#13
C Kizlik-Masson, C Vayne, S E McKenzie, A Poupon, Y Zhou, G Champier, Pouplard C, Y Gruel, J Rollin
BACKGROUND: The diagnosis of heparin-induced thrombocytopenia (HIT) is based on clinical and biological criteria, but a standard is lacking for laboratory assays. Moreover, no humanized HIT antibody is available for pathophysiological studies. OBJECTIVE: To characterise 5B9, a chimeric monoclonal antibody, which fully mimics the effects of human HIT antibodies. METHODS/RESULTS: 5B9, a chimeric anti-PF4/H IgG1 antibody was obtained after immunizing specific transgenic mice...
August 3, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28767239/zein-nanoparticles-uptake-and-translocation-in-hydroponically-grown-sugarcane-plants
#14
Alisha Prasad, Carlos E Astete, Andreea Elena Bodoki, McKenzie Windham, Ede Bodoki, Cristina M Sabliov
The main objective of this study was to investigate the uptake and translocation of positively charged zein nanoparticles (ZNPs) in hydroponically grown sugarcane plants. Fluorescent ZNPs (spherical and measuring an average diameter 135±3 nm) were synthesized by emulsion-diffusion method from FITC-tagged zein. Fluorescent measurement following digestion of plant tissue indicated that sugarcane roots had a significant adhesion of ZNPs, 342.5±24.2 μg NPs/mg of dry matter, while sugarcane leaves contained a very limited amount, 12...
August 2, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28762170/pheochromocytoma-with-synchronous-ipsilateral-adrenal-cortical-adenoma
#15
M Earth Hasassri, T K Pandian, Aleh A Bobr, Irina Bancos, William F Young, Melanie L Richards, David R Farley, Geoffrey B Thompson, Travis J McKenzie
BACKGROUND: Pheochromocytoma with synchronous ipsilateral adrenal cortical adenoma (PSCA) may present with mixed clinical, biochemical, and radiological features characteristic to each neoplasm subtype. METHODS: All patients with a pathological diagnosis of pheochromocytoma were evaluated for an ipsilateral cortical adenoma from 1994 through 2015. Retrospectively extracted data included indications for adrenalectomy, diagnostic workup (biochemical and radiographic), operative characteristics, pathological findings, and postoperative complications...
July 31, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28761153/pla2r-binds-to-the-annexin-a2-s100a10-complex-in-human-podocytes
#16
Maryline Fresquet, Thomas A Jowitt, Edward A McKenzie, Matthew D Ball, Michael J Randles, Rachel Lennon, Paul E Brenchley
Phospholipase A2 receptor (PLA2R) is a member of the mannose receptor family found in podocytes in human kidney. PLA2R is the target of the autoimmune disease, membranous nephropathy, characterised by production of anti-PLA2R autoantibodies which bind to the podocyte. However the function of PLA2R in health and in disease remains unclear. To gain insight into the molecular mechanisms of PLA2R function, we searched for its endogenous binding partners. Proteomic analysis identified annexinA2 as a potential interactor with the extracellular domains of PLA2R...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28759801/assignment-of-solid-state-13-c-and-1-h-nmr-spectra-of-paramagnetic-ni-ii-acetylacetonate-complexes-aided-by-first-principles-computations
#17
Syed Awais Rouf, Vibe Boel Jakobsen, Jiří Mareš, Nicholai Daugaard Jensen, Christine J McKenzie, Juha Vaara, Ulla Gro Nielsen
Recent advances in computational methodology allowed for first-principles calculations of the nuclear shielding tensor for a series of paramagnetic nickel(II) acetylacetonate complexes, [Ni(acac)2L2] with L = H2O, D2O, NH3, ND3, and PMe2Ph have provided detailed insight into the origin of the paramagnetic contributions to the total shift tensor. This was employed for the assignment of the solid-state (1,2)H and (13)C MAS NMR spectra of these compounds. The two major contributions to the isotropic shifts are by orbital (diamagnetic-like) and contact mechanism...
July 17, 2017: Solid State Nuclear Magnetic Resonance
https://www.readbyqxmd.com/read/28751646/an-integrative-computational-approach-to-evaluate-genetic-markers-for-bipolar-disorder
#18
Yong Xu, Jun Wang, Shuquan Rao, McKenzie Ritter, Lydia C Manor, Robert Backer, Hongbao Cao, Zaohuo Cheng, Sha Liu, Yansong Liu, Lin Tian, Kunlun Dong, Yin Yao Shugart, Guoqiang Wang, Fuquan Zhang
Studies to date have reported hundreds of genes connected to bipolar disorder (BP). However, many studies identifying candidate genes have lacked replication, and their results have, at times, been inconsistent with one another. This paper, therefore, offers a computational workflow that can curate and evaluate BP-related genetic data. Our method integrated large-scale literature data and gene expression data that were acquired from both postmortem human brain regions (BP case/control: 45/50) and peripheral blood mononuclear cells (BP case/control: 193/593)...
July 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28748101/evaluation-of-a-hockey-deceased-organ-donation-awareness-campaign-a-population-based-cohort-study
#19
Kyla L Naylor, Susan McKenzie, Cindy Cherry, Eric McArthur, Alvin H Li, Megan K McCallum, S Joseph Kim, Versha Prakash, Gregory A Knoll, Amit X Garg
BACKGROUND: The Kidney Foundation of Canada developed a pilot campaign to educate persons attending junior hockey league games in London, Ontario, Canada, on deceased organ donation. OBJECTIVE: To evaluate the impact of a hockey campaign on the number of new organ and tissue donor registrants. DESIGN: Population-based retrospective cohort study. SETTING: Residents of London, Ontario. PATIENTS: We included 255 476 individuals eligible to register for organ donation with a London, Ontario postal code...
2017: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/28747424/ilc2s-regulate-adaptive-th2-cell-functions-via-pd-l1-checkpoint-control
#20
Christian Schwartz, Adnan R Khan, Achilleas Floudas, Sean P Saunders, Emily Hams, Hans-Reimer Rodewald, Andrew N J McKenzie, Padraic G Fallon
Group 2 innate lymphoid cells (ILC2s) are important effector cells driving the initiation of type 2 immune responses leading to adaptive T helper 2 (Th2) immunity. Here we show that ILC2s dynamically express the checkpoint inhibitor molecule PD-L1 during type 2 pulmonary responses. Surprisingly, PD-L1:PD-1 interaction between ILC2s and CD4(+) T cells did not inhibit the T cell response, but PD-L1-expressing ILC2s stimulated increased expression of GATA3 and production of IL-13 by Th2 cells both in vitro and in vivo...
July 26, 2017: Journal of Experimental Medicine
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