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David T Jones

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https://www.readbyqxmd.com/read/28933846/inhibition-of-calcium-dependent-protein-kinase-1-cdpk1-by-pyrazolopyrimidine-analogs-decreases-establishment-and-reoccurrence-of-central-nervous-system-disease-by-toxoplasma-gondii
#1
Florentine U Rutaganira, Jennifer Barks, Mary Savari Dhason, Qiuling Wang, Michael Steven Lopez, Shaojun Long, Joshua B Radke, Nathaniel G Jones, Amarendar R Maddirala, James W Janetka, Majida El Bakkouri, Raymond Hui, Kevan M Shokat, L David Sibley
Calcium dependent protein kinase 1 (CDPK1) is an essential enzyme in the opportunistic pathogen Toxoplasma gondii. CDPK1 controls multiple processes that are essential to the intracellular replicative cycle of T. gondii including secretion of adhesins, motility, invasion, and egress. Remarkably, CDPK1 contains a small glycine gatekeeper residue in the ATP binding pocket making it sensitive to ATP-competitive inhibitors with bulky substituents that complement this expanded binding pocket. Here we explored structure-activity relationships of a series of pyrazolopyrimidine inhibitors of CDPK1 with the goals of increasing selectivity over host enzymes, improving anti-parasite potency, and improving metabolic stability...
September 21, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28919497/body-mass-index-predicts-selected-physical-fitness-attributes-but-is-not-associated-with-performance-on-military-relevant-tasks-in-u-s-army-soldiers
#2
Joseph R Pierce, David W DeGroot, Tyson L Grier, Keith G Hauret, Bradley C Nindl, Whitfield B East, Michael S McGurk, Bruce H Jones
OBJECTIVES: Army body composition standards are based upon validated criteria; however, certain field-expedient methodologies (e.g., weight-for-height, body mass index [BMI]) may disqualify individuals from service who may otherwise excel on physical performance and military-relevant tasks. The purpose was to assess soldier physical performance and military-specific task/fitness performance stratified by BMI. DESIGN: Cross-sectional observational study. METHODS: Male (n=275) and female (n=46) soldiers performed a wide-array of physical fitness tests and military-specific tasks, including the Army physical fitness test (APFT)...
September 6, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28905308/an-automated-multidose-synthesis-of-the-potentiometric-pet-probe-4-18-f-fluorobenzyl-triphenylphosphonium-18-f-fbntp
#3
Christopher M Waldmann, Adrian Gomez, Phillip Marchis, Sean T Bailey, Milica Momcilovic, Anthony E Jones, David B Shackelford, Saman Sadeghi
PURPOSE: The aim of this study was the automated synthesis of the mitochondrial membrane potential sensor 4-[(18)F]fluorobenzyl-triphenylphosphonium ([(18)F]FBnTP) on a commercially available synthesizer in activity yields (AY) that allow for imaging of multiple patients. PROCEDURES: A three-pot, four-step synthesis was implemented on the ELIXYS FLEX/CHEM radiosynthesizer (Sofie Biosciences) and optimized for radiochemical yield (RCY), radiochemical purity (RCP) as well as chemical purity during several production runs (n = 24)...
September 13, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28901583/improved-protein-contact-predictions-with-the-metapsicov2-server-in-casp12
#4
Daniel W A Buchan, David T Jones
In this paper we present the results for the MetaPSICOV2 contact prediction server in the CASP12 community experiment (http://predictioncenter.org). Over the 35 assessed Free Modelling target domains the MetaPSICOV2 server achieved a mean precision of 43.27%, a substantial increase relative to the server's performance in the CASP11 experiment (Kinch, Li et al. 2016). In the following paper, we discuss improvements to the MetaPSICOV2 server, covering both changes to the neural network and attempts to integrate contact predictions on a domain basis into the prediction pipeline...
September 13, 2017: Proteins
https://www.readbyqxmd.com/read/28900099/rapid-global-ocean-atmosphere-response-to-southern-ocean-freshening-during-the-last-glacial
#5
Chris S M Turney, Richard T Jones, Steven J Phipps, Zoë Thomas, Alan Hogg, A Peter Kershaw, Christopher J Fogwill, Jonathan Palmer, Christopher Bronk Ramsey, Florian Adolphi, Raimund Muscheler, Konrad A Hughen, Richard A Staff, Mark Grosvenor, Nicholas R Golledge, Sune Olander Rasmussen, David K Hutchinson, Simon Haberle, Andrew Lorrey, Gretel Boswijk, Alan Cooper
Contrasting Greenland and Antarctic temperatures during the last glacial period (115,000 to 11,650 years ago) are thought to have been driven by imbalances in the rates of formation of North Atlantic and Antarctic Deep Water (the 'bipolar seesaw'). Here we exploit a bidecadally resolved (14)C data set obtained from New Zealand kauri (Agathis australis) to undertake high-precision alignment of key climate data sets spanning iceberg-rafted debris event Heinrich 3 and Greenland Interstadial (GI) 5.1 in the North Atlantic (~30,400 to 28,400 years ago)...
September 12, 2017: Nature Communications
https://www.readbyqxmd.com/read/28887599/uptake-of-av-1451-in-meningiomas
#6
Tyler J Bruinsma, Derek R Johnson, Ping Fang, Matthew Senjem, Keith A Josephs, Jennifer L Whitwell, Bradley F Boeve, Mukesh K Pandey, Kejal Kantarci, David T Jones, Prashanthi Vemuri, Melissa Murray, Jonathan Graff-Radford, Christopher G Schwarz, David S Knopman, Ronald C Petersen, Clifford R Jack, Val J Lowe
AIM: AV-1451 is an imaging agent labeled with the positron-emitting radiolabel Fluorine-18. 18F-AV-1451 binds paired helical filament tau (PHF-tau), a pathology related to Alzheimer's disease. In our study of AV-1451 uptake in the brains of cognitively normal subjects, we noted a case of a meningioma with visually significant uptake of AV-1451. OBJECTIVE: We initiated the present retrospective study to further examine cases of meningioma that underwent AV-1451 imaging...
September 8, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28886345/rac1-missense-mutations-in-developmental-disorders-with-diverse-phenotypes
#7
Margot R F Reijnders, Nurhuda M Ansor, Maria Kousi, Wyatt W Yue, Perciliz L Tan, Katie Clarkson, Jill Clayton-Smith, Ken Corning, Julie R Jones, Wayne W K Lam, Grazia M S Mancini, Carlo Marcelis, Shehla Mohammed, Rolph Pfundt, Maian Roifman, Ronald Cohn, David Chitayat, Tom H Millard, Nicholas Katsanis, Han G Brunner, Siddharth Banka
RAC1 is a widely studied Rho GTPase, a class of molecules that modulate numerous cellular functions essential for normal development. RAC1 is highly conserved across species and is under strict mutational constraint. We report seven individuals with distinct de novo missense RAC1 mutations and varying degrees of developmental delay, brain malformations, and additional phenotypes. Four individuals, each harboring one of c.53G>A (p.Cys18Tyr), c.116A>G (p.Asn39Ser), c.218C>T (p.Pro73Leu), and c.470G>A (p...
September 7, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28885124/thoracic-spinal-cord-impingement-by-an-arachnoid-web-at-the-level-of-a-hemivertebra-case-report
#8
Molly E Hubbard, Matthew A Hunt, Kristen E Jones, David W Polly
Congenital scoliosis due to a hemivertebra requires surgical stabilization prior to skeletal maturity if rapidly progressive curve growth occurs. Here the authors present the unique case of a man who, at the age of 12 years, had undergone Harrington rod placement for stabilization of progressive congenital scoliosis due to a T-11 hemivertebra and then, at the age of 53 years, presented with acutely progressive myelopathy due to spinal cord compression from an arachnoid web at T-11 despite a solid fusion mass at the prior surgical site...
September 8, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28880972/effect-of-modified-vaccinia-ankara-5t4-and-low-dose-cyclophosphamide-on-antitumor-immunity-in-metastatic-colorectal-cancer-a-randomized-clinical-trial
#9
Martin Scurr, Tom Pembroke, Anja Bloom, David Roberts, Amanda Thomson, Kathryn Smart, Hayley Bridgeman, Richard Adams, Alison Brewster, Robert Jones, Sarah Gwynne, Daniel Blount, Richard Harrop, Melissa Wright, Robert Hills, Awen Gallimore, Andrew Godkin
Importance: The success of immunotherapy with checkpoint inhibitors is not replicated in most cases of colorectal cancer; therefore, different strategies are urgently required. The oncofetal antigen 5T4 is expressed in more than 90% of cases of metastatic colorectal cancer (mCRC). Preliminary data using modified vaccinia Ankara-5T4 (MVA-5T4) in mCRC demonstrated that it safely induced serologic and T-cell responses. Objective: To determine whether antitumor immunity in mCRC could be increased using MVA-5T4, metronomic low-dose cyclophosphamide, or a combination of both treatments...
September 7, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28874525/differential-diagnosis-of-alzheimer-s-disease-using-spectrochemical-analysis-of-blood
#10
Maria Paraskevaidi, Camilo L M Morais, Kássio M G Lima, Julie S Snowden, Jennifer A Saxon, Anna M T Richardson, Matthew Jones, David M A Mann, David Allsop, Pierre L Martin-Hirsch, Francis L Martin
The progressive aging of the world's population makes a higher prevalence of neurodegenerative diseases inevitable. The necessity for an accurate, but at the same time, inexpensive and minimally invasive, diagnostic test is urgently required, not only to confirm the presence of the disease but also to discriminate between different types of dementia to provide the appropriate management and treatment. In this study, attenuated total reflection FTIR (ATR-FTIR) spectroscopy combined with chemometric techniques were used to analyze blood plasma samples from our cohort...
September 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28872125/measurements-of-long-range-electronic-correlations-during-femtosecond-diffraction-experiments-performed-on-nanocrystals-of-buckminsterfullerene
#11
Rebecca A Ryan, Sophie Williams, Andrew V Martin, Ruben A Dilanian, Connie Darmanin, Corey T Putkunz, David Wood, Victor A Streltsov, Michael W M Jones, Naylyn Gaffney, Felix Hofmann, Garth J Williams, Sebastien Boutet, Marc Messerschmidt, M Marvin Seibert, Evan K Curwood, Eugeniu Balaur, Andrew G Peele, Keith A Nugent, Harry M Quiney, Brian Abbey
The precise details of the interaction of intense X-ray pulses with matter are a topic of intense interest to researchers attempting to interpret the results of femtosecond X-ray free electron laser (XFEL) experiments. An increasing number of experimental observations have shown that although nuclear motion can be negligible, given a short enough incident pulse duration, electronic motion cannot be ignored. The current and widely accepted models assume that although electrons undergo dynamics driven by interaction with the pulse, their motion could largely be considered 'random'...
August 22, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28870518/multitep-platform-based-dna-vaccines-for-alpha-synucleinopathies-preclinical-evaluation-of-immunogenicity-and-therapeutic-potency
#12
Hayk Davtyan, Karen Zagorski, Irina Petrushina, Konstantin Kazarian, Natalie R S Goldberg, Janet Petrosyan, Mathew Blurton-Jones, Eliezer Masliah, David H Cribbs, Michael G Agadjanyan, Anahit Ghochikyan
We have previously demonstrated that anti-beta amyloid DNA vaccine (AV-1959D) based on our proprietary MultiTEP platform technology is extremely immunogenic in mice, rabbits, and monkeys. Importantly, MultiTEP platform enables development of vaccines targeting pathological molecules involved in various neurodegenerative disorders. Taking advantage of the universality of MultiTEP platform, we developed DNA vaccines targeting 3 B-cell epitopes (amino acids [aa]85-99, aa109-126, and aa126-140) of human alpha-synuclein (hα-Syn) separately or all 3 epitopes simultaneously...
August 10, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28855352/low-dose-cyclophosphamide-induces-anti-tumor-t-cell-responses-which-associate-with-survival-in-metastatic-colorectal-cancer
#13
Martin J Scurr, Tom Pembroke, Anja Bloom, David J Roberts, Amanda Thomson, Kathryn Smart, Hayley Bridgeman, Richard A Adams, Alison E Brewster, Robert Jones, Sarah Gwynne, Daniel Blount, Richard Harrop, Robert Hills, Awen Gallimore, Andrew Godkin
PURPOSE: Anti-cancer T-cell responses can control tumors, but immune-suppressive mechanisms in vivo prevent their function. The role of regulatory T-cells (Tregs) in metastatic colorectal cancer (mCRC) is unclear. We have previously shown depletion of Tregs enhances CRC-specific effector T-cell responses. Low dose cyclophosphamide (CPM) targets Tregs in animal models and some human studies, however the effect of CPM in mCRC is unknown. EXPERIMENTAL DESIGN: Fifty-five mCRC patients were enrolled onto a phase I/II trial and randomized to receive two week-long courses of low-dose (50mg twice-a-day) CPM or not...
August 29, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28841994/use-of-fourier-transform-infrared-spectroscopy-to-examine-the-fe-ii-catalyzed-transformation-of-ferrihydrite
#14
Wei Xiao, Adele M Jones, Richard N Collins, Mark W Bligh, T David Waite
The Fe(II)-catalyzed transformation of the poorly crystalline Fe(III) oxyhydroxide mineral, ferrihydrite (Fh), to more crystalline Fe(III) mineral species such as magnetite, goethite, and lepidocrocite has been quantitatively evaluated under various conditions using X-ray adsorption spectroscopy (XAS) and Fourier transform infrared (FTIR) spectroscopy. Using the peak height of signature FTIR peaks of sub-micron sized lepidocrocite and goethite references minerals, the FTIR results were comparable to the XAS results within experimental error...
December 1, 2017: Talanta
https://www.readbyqxmd.com/read/28838870/effect-of-surgeon-and-hospital-volume-on-emergency-general-surgery-outcomes
#15
Ambar Mehta, David T Efron, Joseph K Canner, Linda Dultz, Tim Xu, Christian Jones, Elliott R Haut, Robert Sd Higgins, Joseph V Sakran
BACKGROUND: Emergency general surgeries (EGS) contribute to half of all surgical mortality nationwide, are associated with a 50% complication rate, and have a 15% readmission rate within 30-days. We assessed associations between surgeon and hospital EGS-volume with these outcomes. STUDY DESIGN: Using Maryland's Health Services Cost Review Commission database, we identified non-trauma EGS procedures performed by general surgeons among patients 20-years or older, who were admitted urgently or emergently, from 7/2012-9/2014...
August 21, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28832025/corrigendum-whole-genome-analysis-of-a-schistosomiasis-transmitting-freshwater-snail
#16
Coen M Adema, LaDeana W Hillier, Catherine S Jones, Eric S Loker, Matty Knight, Patrick Minx, Guilherme Oliveira, Nithya Raghavan, Andrew Shedlock, Laurence Rodrigues do Amaral, Halime D Arican-Goktas, Juliana G Assis, Elio Hideo Baba, Olga L Baron, Christopher J Bayne, Utibe Bickham-Wright, Kyle K Biggar, Michael Blouin, Bryony C Bonning, Chris Botka, Joanna M Bridger, Katherine M Buckley, Sarah K Buddenborg, Roberta Lima Caldeira, Julia Carleton, Omar S Carvalho, Maria G Castillo, Iain W Chalmers, Mikkel Christensens, Sandra Clifton, Celine Cosseau, Christine Coustau, Richard M Cripps, Yesid Cuesta-Astroz, Scott F Cummins, Leon Di Stefano, Nathalie Dinguirard, David Duval, Scott Emrich, Cédric Feschotte, Rene Feyereisen, Peter FitzGerald, Catrina Fronick, Lucinda Fulton, Richard Galinier, Sandra G Gava, Michael Geusz, Kathrin K Geyer, Gloria I Giraldo-Calderón, Matheus de Souza Gomes, Michelle A Gordy, Benjamin Gourbal, Christoph Grunau, Patrick C Hanington, Karl F Hoffmann, Daniel Hughes, Judith Humphries, Daniel J Jackson, Liana K Jannotti-Passos, Wander de Jesus Jeremias, Susan Jobling, Bishoy Kamel, Aurélie Kapusta, Satwant Kaur, Joris M Koene, Andrea B Kohn, Dan Lawson, Scott P Lawton, Di Liang, Yanin Limpanont, Sijun Liu, Anne E Lockyer, Ty Anna L Lovato, Fernanda Ludolf, Vince Magrini, Donald P McManus, Monica Medina, Milind Misra, Guillaume Mitta, Gerald M Mkoji, Michael J Montague, Cesar Montelongo, Leonid L Moroz, Monica C Munoz-Torres, Umar Niazi, Leslie R Noble, Francislon S Oliveira, Fabiano S Pais, Anthony T Papenfuss, Rob Peace, Janeth J Pena, Emmanuel A Pila, Titouan Quelais, Brian J Raney, Jonathan P Rast, David Rollinson, Izinara C Rosse, Bronwyn Rotgans, Edwin J Routledge, Kathryn M Ryan, Larissa L S Scholte, Kenneth B Storey, Martin Swain, Jacob A Tennessen, Chad Tomlinson, Damian L Trujillo, Emanuela V Volpi, Anthony J Walker, Tianfang Wang, Ittiprasert Wannaporn, Wesley C Warren, Xiao-Jun Wu, Timothy P Yoshino, Mohammed Yusuf, Si-Ming Zhang, Min Zhao, Richard K Wilson
This corrects the article DOI: 10.1038/ncomms15451.
August 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28818277/economics-of-self-measured-blood-pressure-monitoring-a-community-guide-systematic-review
#17
REVIEW
Verughese Jacob, Sajal K Chattopadhyay, Krista K Proia, David P Hopkins, Jeffrey Reynolds, Anilkrishna B Thota, Christopher D Jones, Daniel T Lackland, Kimberly J Rask, Nicolaas P Pronk, John M Clymer, Ron Z Goetzel
CONTEXT: The health and economic burden of hypertension, a major risk factor for cardiovascular disease, is substantial. This systematic review evaluated the economic evidence of self-measured blood pressure (SMBP) monitoring interventions to control hypertension. EVIDENCE ACQUISITION: The literature search from database inception to March 2015 identified 22 studies for inclusion with three types of interventions: SMBP used alone, SMBP with additional support, and SMBP within team-based care (TBC)...
September 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28816149/a-multi-institution-retrospective-analysis-of-cervix-intracavitary-brachytherapy-treatments-part-1-is-eqd2-good-enough-for-reporting-radiobiological-effects
#18
MULTICENTER STUDY
Emma C Fields, Rakhi Melvani, George Hajdok, David D'Souza, Bernard Jones, Kelly Stuhr, Quentin Diot, Christine M Fisher, Nitai Mukhopadhyay, Dorin Todor
PURPOSE: When brachytherapy doses are reported or added, biologically effective dose (BED) minimum dose covering 90% of the volume (D90) is used as if dose is delivered uniformly to the target. Unlike BED(D90), equivalent uniform BED (EUBED) and generalized biologically equivalent uniform dose (gBEUD) are quantities that integrate dose inhomogeneity. Here we compared BED(D90) and equivalent uniform BED (EUBED)/gBEUD in 3 settings: (1) 2 sites using tandem and ovoid (T&O) but different styles of implants; (2) 2 sites using different devices-T&O and tandem and ring (T&R)-and different styles; and (3) the same site using T&O and T&R with the same style...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28814669/neonatal-and-adult-recent-thymic-emigrants-produce-il-8-and-express-complement-receptors-cr1-and-cr2
#19
Marcin L Pekalski, Arcadio Rubio García, Ricardo C Ferreira, Daniel B Rainbow, Deborah J Smyth, Meghavi Mashar, Jane Brady, Natalia Savinykh, Xaquin Castro Dopico, Sumiyya Mahmood, Simon Duley, Helen E Stevens, Neil M Walker, Antony J Cutler, Frank Waldron-Lynch, David B Dunger, Claire Shannon-Lowe, Alasdair J Coles, Joanne L Jones, Chris Wallace, John A Todd, Linda S Wicker
The maintenance of peripheral naive T lymphocytes in humans is dependent on their homeostatic division, not continuing emigration from the thymus, which undergoes involution with age. However, postthymic maintenance of naive T cells is still poorly understood. Previously we reported that recent thymic emigrants (RTEs) are contained in CD31+CD25- naive T cells as defined by their levels of signal joint T cell receptor rearrangement excision circles (sjTRECs). Here, by differential gene expression analysis followed by protein expression and functional studies, we define that the naive T cells having divided the least since thymic emigration express complement receptors (CR1 and CR2) known to bind complement C3b- and C3d-decorated microbial products and, following activation, produce IL-8 (CXCL8), a major chemoattractant for neutrophils in bacterial defense...
August 17, 2017: JCI Insight
https://www.readbyqxmd.com/read/28807288/prevalence-of-tritrichomonas-foetus-in-tennessee-bulls
#20
Chika C Okafor, Lew G Strickland, Brittni M Jones, Stephen Kania, David E Anderson, Brian K Whitlock
The prevalence of bovine trichomonosis (BT) in TN bulls was estimated through both active screening of bulls and review of previous laboratory records. During the active bull screening, preputial smegma specimens were collected from 458 TN beef bulls at 2 cattle slaughterhouses and 2 stockyards, which serve most beef bulls in TN, between March 2014 and June 2015. Each specimen was cultured for Tritrichomonas foetus (T. foetus) as well as evaluated microscopically every other day for seven days for any protozoa resembling T...
August 30, 2017: Veterinary Parasitology
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