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James Maxwell

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https://www.readbyqxmd.com/read/28177747/short-term-heat-acclimation-improves-the-determinants-of-endurance-performance-and-5-000-m-running-performance-in-the-heat
#1
Carl Alexander James, Alan J Richardson, Peter W Watt, Ashley G B Willmott, Oliver R Gibson, Neil S Maxwell
This study investigated the effect of 5 days controlled hyperthermia heat acclimation (STHA) on the determinants of endurance performance and 5 km performance in runners, relative to the impairment afforded by moderate heat stress. A control group (CON), matched for total work and power output (2.7 W.kg-1), differentiated thermal and exercise contributions of STHA on exercise performance. Seventeen participants (10 STHA, 7 CON) completed graded exercise tests (GXT) in cool (13°C, 50% RH, pre training) and hot conditions (32°C, 60% RH, pre and post training), as well as 5 km time trials (TT) in the heat, pre and post training...
November 18, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28141966/past-present-and-future-of-integrated-control-of-apple-pests-the-new-zealand-experience
#2
James T S Walker, David Maxwell Suckling, C Howard Wearing
This review describes the New Zealand apple industry's progression from 1960s integrated pest control research to today's comprehensive integrated pest management system. With the exception of integrated mite control implemented during the 1980s, pest control on apple crops was dominated by intensive organophosphate insecticide regimes to control tortricid leafrollers. Multiple pest resistances to these insecticides by the 1990s, and increasing consumer demand for lower pesticide residues on fruit, led to the implementation of integrated fruit production...
January 31, 2017: Annual Review of Entomology
https://www.readbyqxmd.com/read/28126925/muc1-mediated-induction-of-myeloid-derived-suppressor-cells-in-patients-with-acute-myeloid-leukemia
#3
Athalia Rachel Pyzer, Dina Stroopinsky, Hasan Rajabi, Abigail Washington, Ashujit Tagde, Maxwell Coll, Jacqueline Fung, Mary Paty Bryant, Leandra Cole, Kristen Palmer, Poorvi Somaiya, Rebecca Karp Leaf, Myrna Nahas, Arie Apel, Salvia Jain, Malgorzata McMasters, Lourdes Mendez, James Levine, Robin Joyce, Jon Arnason, Pier Paolo Pandolfi, Donald Kufe, Jacalyn Rosenblatt, David Avigan
Myeloid-derived suppressor cells (MDSCs) play a critical role in promoting immune tolerance and disease growth. The mechanism by which tumor cells evoke the expansion of MDSCs in Acute Myeloid Leukemia (AML) has not been well described. We have demonstrated that patients with AML exhibit increased presence of MDSCs in their peripheral blood, compared to normal controls. Cytogenetic studies demonstrated that MDSCs in patients with AML may be derived from leukemic or apparently normal progenitors. Engraftment of C57BL/6 mice with TIB-49 AML led to an expansion of CD11b+ Gr1+ MDSCs in bone marrow and spleen...
January 26, 2017: Blood
https://www.readbyqxmd.com/read/28103613/tissue-based-next-generation-sequencing-application-in-a-universal-healthcare-system
#4
REVIEW
Seán O Hynes, Brendan Pang, Jacqueline A James, Perry Maxwell, Manuel Salto-Tellez
In the context of solid tumours, the evolution of cancer therapies to more targeted and nuanced approaches has led to the impetus for personalised medicine. The targets for these therapies are largely based on the driving genetic mutations of the tumours. To track these multiple driving mutations the use of next generation sequencing (NGS) coupled with a morphomolecular approach to tumours, has the potential to deliver on the promises of personalised medicine. A review of NGS and its application in a universal healthcare (UHC) setting is undertaken as the technology has a wide appeal and utility in diagnostic, clinical trial and research paradigms...
January 19, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28040248/dramatic-increase-in-mud-distribution-across-a-large-sub-tropical-embayment-moreton-bay-australia
#5
James R Lockington, Simon Albert, Paul L Fisher, Badin R Gibbes, Paul S Maxwell, Alistair R Grinham
Major flood events can dramatically alter the coastal sediment environment. This study established the current sediment distribution in a large sub-tropical embayment, Moreton Bay, Australia, and examined the effect of three recent floods on modifying this distribution. In 2015, surface sediment samples were collected from 223 sites across the study area and analysed for particle size distribution with the resultant sediment distribution mapped. In addition, sampling of flood waters during two major events in 2011 and 2013 was undertaken and particle size distribution of suspended sediment was determined...
December 28, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28035322/micropapillary-bladder-cancer-insights-from-the-national-cancer-database
#6
Wilson Sui, Justin T Matulay, Maxwell B James, Ifeanyi C Onyeji, Marissa C Theofanides, Arindam RoyChoudhury, G Joel DeCastro, Sven Wenske
Introduction: Micropapillary bladder cancer (MPBC) is a variant histology of urothelial carcinoma (UC) that is associated with poor outcomes however given its rarity, little is known outside of institutional reports. We sought to use a population-level cancer database to assess survival outcomes in patients treated with surgery, radiation therapy and/or chemotherapy. Materials and Methods: The National Cancer Database (NCDB) was queried for all cases of MPBC and UC using International Classification of Disease-O-3 morphologic codes between 2004-2014...
October 27, 2016: Bladder Cancer
https://www.readbyqxmd.com/read/27982637/magnetorotational-turbulence-and-dynamo-in-a-collisionless-plasma
#7
Matthew W Kunz, James M Stone, Eliot Quataert
We present results from the first 3D kinetic numerical simulation of magnetorotational turbulence and dynamo, using the local shearing-box model of a collisionless accretion disk. The kinetic magnetorotational instability grows from a subthermal magnetic field having zero net flux over the computational domain to generate self-sustained turbulence and outward angular-momentum transport. Significant Maxwell and Reynolds stresses are accompanied by comparable viscous stresses produced by field-aligned ion pressure anisotropy, which is regulated primarily by the mirror and ion-cyclotron instabilities through particle trapping and pitch-angle scattering...
December 2, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27935427/short-term-heat-acclimation-prior-to-a-multi-day-desert-ultra-marathon-improves-physiological-and-psychological-responses-without-compromising-immune-status
#8
Ashley G B Willmott, Mark Hayes, Kirsty A M Waldock, Rebecca L Relf, Emily R Watkins, Carl A James, Oliver R Gibson, Nicholas J Smeeton, Alan J Richardson, Peter W Watt, Neil S Maxwell
Multistage, ultra-endurance events in hot, humid conditions necessitate thermal adaptation, often achieved through short term heat acclimation (STHA), to improve performance by reducing thermoregulatory strain and perceptions of heat stress. This study investigated the physiological, perceptual and immunological responses to STHA prior to the Marathon des Sables. Eight athletes (age 42 ± 4 years and body mass 81.9 ± 15.0 kg) completed 4 days of controlled hyperthermia STHA (60 min·day(‒1), 45°C and 30% relative humidity)...
December 9, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27928494/synthetically-tuneable-biomimetic-artificial-photosynthetic-reaction-centres-that-closely-resemble-the-natural-system-in-purple-bacteria
#9
Sai-Ho Lee, Iain M Blake, Allan G Larsen, James A McDonald, Kei Ohkubo, Shunichi Fukuzumi, Jeffrey R Reimers, Maxwell J Crossley
Porphyrin-based photosynthetic reaction centre (PRC) mimics, ZnPQ-Q2HP-C60 and MP2Q-Q2HP-C60 (M = Zn or 2H), designed to have a similar special-pair electron donor and similar charge-separation distances, redox processes and photochemical reaction rates to those in the natural PRC from purple bacteria, have been synthesised and extensive photochemical studies performed. Mechanisms of electron-transfer reactions are fully investigated using femtosecond and nanosecond transient absorption spectroscopy. In benzonitrile, all models show picosecond-timescale charge-separations and the final singlet charge-separations with the microsecond-timescale...
October 19, 2016: Chemical Science
https://www.readbyqxmd.com/read/27903191/cost-effectiveness-of-stereotactic-radiosurgery-versus-whole-brain-radiation-therapy-for-up-to-10-brain-metastases
#10
Nataniel H Lester-Coll, Arie P Dosoretz, William J Magnuson, Maxwell S Laurans, Veronica L Chiang, James B Yu
OBJECTIVE The JLGK0901 study found that stereotactic radiosurgery (SRS) is a safe and effective treatment option for treating up to 10 brain metastases. The purpose of this study is to determine the cost-effectiveness of treating up to 10 brain metastases with SRS, whole-brain radiation therapy (WBRT), or SRS and immediate WBRT (SRS+WBRT). METHODS A Markov model was developed to evaluate the cost effectiveness of SRS, WBRT, and SRS+WBRT in patients with 1 or 2-10 brain metastases. Transition probabilities were derived from the JLGK0901 study and modified according to the recurrence rates observed in the Radiation Therapy Oncology Group (RTOG) 9508 and European Organization for Research and Treatment of Cancer (EORTC) 22952-26001 studies to simulate the outcomes for patients who receive WBRT...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27863780/identification-of-primary-tumors-in-patients-presenting-with-metastatic-gastroenteropancreatic-neuroendocrine-tumors
#11
Kendall J Keck, Jessica E Maxwell, Yusuf Menda, Andrew Bellizzi, Joseph Dillon, Thomas M O'Dorisio, James R Howe
BACKGROUND: Patients with gastroenteropancreatic neuroendocrine tumors often present with metastases. Identification of the primary tumor is important for operative management, and therefore we sought to determine our success at identifying primary tumors with diagnostic testing and operative exploration. METHODS: A clinical neuroendocrine tumor database was reviewed to identify patients presenting with metastases and primary tumor in situ. Results of radiologic, endoscopic, and operative procedures were evaluated to determine which correctly identified the primary tumor...
January 2017: Surgery
https://www.readbyqxmd.com/read/27842993/diagnosis-and-clinical-management-of-embryonic-mosaicism
#12
REVIEW
Nidhee M Sachdev, Susan M Maxwell, Andria G Besser, James A Grifo
Embryonic mosaicism occurs when two or more cell populations with different genotypes are present within the same embryo. New diagnostic techniques for preimplantation genetic screening (PGS), such as next-generation sequencing, have led to increased reporting of mosaicism. The interpretation of mosaicism is complicated because the transfer of some mosaic embryos has resulted in live births. Mosaic embryos may represent a third category between normal (euploidy) and abnormal (aneuploidy). This category of mosaic embryos may be characterized by decreased implantation and pregnancy potential as well as increased risk of genetic abnormalities and adverse pregnancy outcomes...
January 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/27827358/impact-of-mutational-profiles-on-response-of-primary-oestrogen-receptor-positive-breast-cancers-to-oestrogen-deprivation
#13
Pascal Gellert, Corrinne V Segal, Qiong Gao, Elena López-Knowles, Lesley-Ann Martin, Andrew Dodson, Tiandao Li, Christopher A Miller, Charles Lu, Elaine R Mardis, Alexa Gillman, James Morden, Manuela Graf, Kally Sidhu, Abigail Evans, Michael Shere, Christopher Holcombe, Stuart A McIntosh, Nigel Bundred, Anthony Skene, William Maxwell, John Robertson, Judith M Bliss, Ian Smith, Mitch Dowsett
Pre-surgical studies allow study of the relationship between mutations and response of oestrogen receptor-positive (ER+) breast cancer to aromatase inhibitors (AIs) but have been limited to small biopsies. Here in phase I of this study, we perform exome sequencing on baseline, surgical core-cuts and blood from 60 patients (40 AI treated, 20 controls). In poor responders (based on Ki67 change), we find significantly more somatic mutations than good responders. Subclones exclusive to baseline or surgical cores occur in ∼30% of tumours...
November 9, 2016: Nature Communications
https://www.readbyqxmd.com/read/27814370/can-community-members-identify-tropical-tree-species-for-redd-carbon-and-biodiversity-measurements
#14
Mingxu Zhao, Søren Brofeldt, Qiaohong Li, Jianchu Xu, Finn Danielsen, Simon Bjarke Lægaard Læssøe, Michael Køie Poulsen, Anna Gottlieb, James Franklin Maxwell, Ida Theilade
Biodiversity conservation is a required co-benefit of REDD+. Biodiversity monitoring is therefore needed, yet in most areas it will be constrained by limitations in the available human professional and financial resources. REDD+ programs that use forest plots for biomass monitoring may be able to take advantage of the same data for detecting changes in the tree diversity, using the richness and abundance of canopy trees as a proxy for biodiversity. If local community members are already assessing the above-ground biomass in a representative network of forest vegetation plots, it may require minimal further effort to collect data on the diversity of trees...
2016: PloS One
https://www.readbyqxmd.com/read/27803966/contemporary-treatment-patterns-and-outcomes-of-sarcomatoid-bladder-cancer
#15
Wilson Sui, Justin T Matulay, Ifeanyi C Onyeji, Marissa C Theofanides, Maxwell B James, Arindam RoyChoudhury, Sven Wenske, G Joel DeCastro
PURPOSE: To characterize the treatment patterns and survival outcomes of sarcomatoid bladder cancer, a rare urothelial variant histology using a large population level cancer database. METHODS: The National Cancer Database was queried for all cases of sarcomatoid bladder cancer using International Classification of Disease-O-3 morphologic code 8122 between 2004 and 2014. Primary outcome was overall survival. RESULTS: A total of 489 patients met our inclusion criteria and were included in our analysis...
November 1, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27768896/c9orf72-dipeptide-repeats-impair-the-assembly-dynamics-and-function-of-membrane-less-organelles
#16
Kyung-Ha Lee, Peipei Zhang, Hong Joo Kim, Diana M Mitrea, Mohona Sarkar, Brian D Freibaum, Jaclyn Cika, Maura Coughlin, James Messing, Amandine Molliex, Brian A Maxwell, Nam Chul Kim, Jamshid Temirov, Jennifer Moore, Regina-Maria Kolaitis, Timothy I Shaw, Bing Bai, Junmin Peng, Richard W Kriwacki, J Paul Taylor
Expansion of a hexanucleotide repeat GGGGCC (G4C2) in C9ORF72 is the most common cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Transcripts carrying (G4C2) expansions undergo unconventional, non-ATG-dependent translation, generating toxic dipeptide repeat (DPR) proteins thought to contribute to disease. Here, we identify the interactome of all DPRs and find that arginine-containing DPRs, polyGly-Arg (GR) and polyPro-Arg (PR), interact with RNA-binding proteins and proteins with low complexity sequence domains (LCDs) that often mediate the assembly of membrane-less organelles...
October 20, 2016: Cell
https://www.readbyqxmd.com/read/27742788/translational-diagnostics-and-therapeutics-in-pancreatic-neuroendocrine-tumors
#17
EDITORIAL
Jessica E Maxwell, Scott K Sherman, James R Howe
Pancreatic neuroendocrine tumors (PNET) are rare tumors, but have been increasing in incidence. Although typically thought of as indolent, more than half of patients present with metastatic disease. For many years, the only mutations commonly known in these tumors were those in the MEN1 gene. Recently, the genetics underlying PNETs have been further defined through exome sequencing. The most frequent alterations found in sporadic PNETs are in MEN1, DAXX/ATRX, and a variety of genes in the mTOR pathway. Confirmation of these mutations has prompted trials with a number of drugs active in these pathways, and two drugs were eventually approved in 2011-sunitinib and everolimus...
October 15, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27729076/health-worker-perspectives-on-the-possible-use-of-intramuscular-artesunate-for-the-treatment-of-severe-malaria-at-lower-level-health-facilities-in-settings-with-poor-access-to-referral-facilities-in-nigeria-a-qualitative-study
#18
Olatunde Adesoro, Constance Shumba, John Kpamor, Jane Achan, Harriet Kivumbi, John Dada, Kolawole Maxwell, James Tibenderana, Madeline Marasciulo, Prudence Hamade, Olusola Oresanya, Joanita Nankabirwa, Ebenezer Baba
BACKGROUND: Innovative strategies are needed to reduce malaria mortality in high burden countries like Nigeria. Given that one of the important reasons for this high malaria mortality is delay in receiving effective treatment, improved access to such treatment is critical. Intramuscular artesunate could be used at lower-level facilities given its proven efficacy, ease of use and excellent safety profile. The objective of this study was therefore to explore health workers' perspectives on the possible use of intramuscular artesunate as definitive treatment for severe malaria at lower-level facilities, especially when access to referral facilities is challenging...
October 12, 2016: BMC Health Services Research
https://www.readbyqxmd.com/read/27725679/imaging-biomarker-roadmap-for-cancer-studies
#19
James P B O'Connor, Eric O Aboagye, Judith E Adams, Hugo J W L Aerts, Sally F Barrington, Ambros J Beer, Ronald Boellaard, Sarah E Bohndiek, Michael Brady, Gina Brown, David L Buckley, Thomas L Chenevert, Laurence P Clarke, Sandra Collette, Gary J Cook, Nandita M deSouza, John C Dickson, Caroline Dive, Jeffrey L Evelhoch, Corinne Faivre-Finn, Ferdia A Gallagher, Fiona J Gilbert, Robert J Gillies, Vicky Goh, John R Griffiths, Ashley M Groves, Steve Halligan, Adrian L Harris, David J Hawkes, Otto S Hoekstra, Erich P Huang, Brian F Hutton, Edward F Jackson, Gordon C Jayson, Andrew Jones, Dow-Mu Koh, Denis Lacombe, Philippe Lambin, Nathalie Lassau, Martin O Leach, Ting-Yim Lee, Edward L Leen, Jason S Lewis, Yan Liu, Mark F Lythgoe, Prakash Manoharan, Ross J Maxwell, Kenneth A Miles, Bruno Morgan, Steve Morris, Tony Ng, Anwar R Padhani, Geoff J M Parker, Mike Partridge, Arvind P Pathak, Andrew C Peet, Shonit Punwani, Andrew R Reynolds, Simon P Robinson, Lalitha K Shankar, Ricky A Sharma, Dmitry Soloviev, Sigrid Stroobants, Daniel C Sullivan, Stuart A Taylor, Paul S Tofts, Gillian M Tozer, Marcel van Herk, Simon Walker-Samuel, James Wason, Kaye J Williams, Paul Workman, Thomas E Yankeelov, Kevin M Brindle, Lisa M McShane, Alan Jackson, John C Waterton
Imaging biomarkers (IBs) are integral to the routine management of patients with cancer. IBs used daily in oncology include clinical TNM stage, objective response and left ventricular ejection fraction. Other CT, MRI, PET and ultrasonography biomarkers are used extensively in cancer research and drug development. New IBs need to be established either as useful tools for testing research hypotheses in clinical trials and research studies, or as clinical decision-making tools for use in healthcare, by crossing 'translational gaps' through validation and qualification...
March 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/27692437/why-do-euploid-embryos-miscarry-a-case-control-study-comparing-the-rate-of-aneuploidy-within-presumed-euploid-embryos-that-resulted-in-miscarriage-or-live-birth-using-next-generation-sequencing
#20
Susan M Maxwell, Pere Colls, Brooke Hodes-Wertz, David H McCulloh, Caroline McCaffrey, Dagan Wells, Santiago Munné, James A Grifo
OBJECTIVE: To determine whether undetected aneuploidy contributes to pregnancy loss after transfer of euploid embryos that have undergone array comparative genomic hybridization (aCGH). DESIGN: Case-control study. SETTING: University-based fertility center. PATIENT(S): Cases included 38 patients who underwent frozen euploid ET as determined by aCGH, resulting in miscarriage. Controls included 38 patients who underwent frozen euploid ET as determined by aCGH, resulting in a live birth...
November 2016: Fertility and Sterility
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