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https://www.readbyqxmd.com/read/29154898/evaluation-of-dynamic-contrast-enhanced-mri-biomarkers-for-stratified-cancer-medicine-how-do-permeability-and-perfusion-vary-between-human-tumours
#1
Ross A Little, Hervé Barjat, Jennifer I Hare, Mary Jenner, Yvonne Watson, Susan Cheung, Katherine Holliday, Weijuan Zhang, James P B O'Connor, Simon T Barry, Sanyogitta Puri, Geoffrey J M Parker, John C Waterton
BACKGROUND: Solid tumours exhibit enhanced vessel permeability and fenestrated endothelium to varying degree, but it is unknown how this varies in patients between and within tumour types. Dynamic contrast-enhanced (DCE) MRI provides a measure of perfusion and permeability, the transfer constant K(trans), which could be employed for such comparisons in patients. AIM: To test the hypothesis that different tumour types exhibit systematically different K(trans). MATERIALS AND METHODS: DCE-MRI data were retrieved from 342 solid tumours in 230 patients...
November 14, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29154710/pathology-in-practice
#2
Allison M Watson, Tiffany L Jenkins, Daniel R Rissi
No abstract text is available yet for this article.
December 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29152602/shortened-penetratin-cell-penetrating-peptide-is-insufficient-for-cytosolic-delivery-of-a-grb7-targeting-peptide
#3
Gabrielle M Watson, Ketav Kulkarni, Rebecca Brandt, Mark P Del Borgo, Marie-Isabel Aguilar, Jacqueline A Wilce
Delivery across the cell membrane is of critical importance for the development of therapeutics targeting intracellular proteins. The use of cell-penetrating peptides (CPPs), such as Penetratin (P16), has facilitated the delivery of otherwise cell-impermeable molecules allowing them to carry out their biological function. A truncated form of Penetratin (RRMKWKK) has been previously described as the minimal Penetratin sequence that is required for translocation across the cell membrane. Here, we performed a detailed comparison of cellular uptake by Penetratin (P16) and the truncated Penetratin peptide (P7), including their ability to deliver G7-18NATE, a cyclic peptide targeting the cytosolic cancer target Grb7-adapter protein into cells...
February 28, 2017: ACS Omega
https://www.readbyqxmd.com/read/29152540/if-you-build-it-who-will-come-a-description-of-user-characteristics-and-experiences-with-the-mcmaster-optimal-aging-portal
#4
Sarah E Neil-Sztramko, Rawan Farran, Susannah Watson, Anthony J Levinson, John N Lavis, Alfonso Iorio, Maureen Dobbins
Objectives: The McMaster Optimal Aging Portal (the Portal) aims to increase access to evidence-based health information. We would now like to understand who uses the Portal, why, and for what, and elicit feedback and suggestions for future initiatives. Methods: An online survey of users collected data on demographics, eHealth literacy, Internet use, information-seeking behavior, site acceptability and perceived impact on health behaviors, participant satisfaction, and suggestions for improvements using mixed methods...
January 2017: Gerontology & Geriatric Medicine
https://www.readbyqxmd.com/read/29151251/quality-of-life-following-hospitalization-associated-acute-kidney-injury-in-children
#5
Kelsey L Richardson, R Scott Watson, Sangeeta Hingorani
OBJECTIVES: Acute kidney injury (AKI) is common in hospitalized children. The impact of AKI following hospitalization is not fully understood, particularly the impact on health related quality of life (HRQOL). The goal of this study was to determine the relationship between hospitalization-associated AKI and HRQOL in a pediatric population. STUDY DESIGN: We conducted a retrospective cohort study of children with hospitalization-associated AKI. Eligible children were 1-19 years old with AKI defined by kidney disease improving global outcomes (KDIGO) criteria and had at least one completed pediatric quality of life (PedsQL) 4...
November 18, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/29149675/evaluation-of-potassium-ferrate-as-an-alternative-disinfectant-on-cyanobacteria-inactivation-and-associated-toxin-fate-in-various-waters
#6
Jiajia Fan, Bo-Hung Lin, Che-Wei Chang, Yuqing Zhang, Tsair-Fuh Lin
Potassium ferrate (K2FeO4) is an effective oxidant that may be used as a pre- or post-oxidant in the purification of source water with cyanobacterial issues. To provide a better basis for the application of this oxidant during water treatment processes, the impacts of K2FeO4 on the cell viability of Microcystis aeruginosa and the fate of associated microcystins (MCs) were investigated in various water matrices. The results showed that a water matrix can significantly affect the effectiveness of K2FeO4 on cyanobacteria inactivation...
November 9, 2017: Water Research
https://www.readbyqxmd.com/read/29148966/exploring-the-health-care-environment-and-associations-with-clinical-outcomes-of-people-living-with-hiv-aids
#7
Mary Hawk, Robert W S Coulter, James E Egan, Mackey Reuel Friedman, Steven Meanley, Stuart Fisk, Courtney Watson, Suzanne Kinsky
Despite three decades of dramatic treatment breakthroughs in antiretroviral regimens, clinical outcomes for people living with HIV vary greatly. The HIV treatment cascade models the stages of care that people living with HIV go through toward the goal of viral suppression and demonstrates that <30% of those living with HIV/AIDS in the United States have met this goal. Although some research has focused on the ways that patient characteristics and patient-provider relationships contribute to clinical adherence and treatment success, few studies to date have examined the ways that contextual factors of care and the healthcare environment contribute to patient outcomes...
November 17, 2017: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/29148831/is-your-biobank-up-to-standards-a-review-of-the-national-canadian-tissue-repository-network-required-operational-practice-standards-and-the-controlled-documents-of-a-certified-biobank
#8
Victoria Hartman, Tania Castillo-Pelayo, Sindy Babinszky, Simon Dee, Jodi Leblanc, Lise Matzke, Sheila O'Donoghue, Jane Carpenter, Candace Carter, Amanda Rush, Jennifer Byrne, Rebecca Barnes, Anne-Marie Mes-Messons, Peter Watson
Ongoing quality management is an essential part of biobank operations and the creation of high quality biospecimen resources. Adhering to the standards of a national biobanking network is a way to reduce variability between individual biobank processes, resulting in cross biobank compatibility and more consistent support for health researchers. The Canadian Tissue Repository Network (CTRNet) implemented a set of required operational practices (ROPs) in 2011 and these serve as the standards and basis for the CTRNet biobank certification program...
November 17, 2017: Biopreservation and Biobanking
https://www.readbyqxmd.com/read/29147772/correction-to-a-comparison-of-isomaltulose-versus-maltodextrin-ingestion-during-soccer-specific-exercise
#9
Emma J Stevenson, Anthony Watson, Stephan Theis, Anja Holz, Liam D Harper, Mark Russell
The article "A comparison of isomaltulose versus maltodextrin ingestion during soccer-specific exercise", written by "Emma J. Stevenson, Anthony Watson, Stephan Theis, Anja Holz,·Liam D. Harper, Mark Russell", was originally published Online First without open access. After publication in volume [117], issue [11], page.
November 16, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29147571/a-surprising-treatment-response-in-a-patient-with-rare-isolated-growth-hormone-deficiency-type-ib
#10
Jordan Yardain Amar, Kimberly Borden, Elizabeth Watson, Talin Arslanian
Isolated Growth Hormone Deficiency (IGHD) is a rare cause of short stature, treated with the standard regimen of subcutaneous synthetic growth hormone (GH). Patients typically achieve a maximum height velocity in the first year of treatment, which then tapers shortly after treatment is stopped. We report a case of a 9-year-old male who presented with short stature (<3rd percentile for age and race). Basal hormone levels showed undetectable serum IGF1. Skeletal wrist age was consistent with chronologic age...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29146871/postcatalytic-spliceosome-structure-reveals-mechanism-of-3-splice-site-selection
#11
Max E Wilkinson, Sebastian M Fica, Wojciech P Galej, Christine M Norman, Andrew J Newman, Kiyoshi Nagai
Introns are removed from eukaryotic mRNA precursors by the spliceosome in two transesterification reactions-branching and exon ligation. The mechanism of 3'-splice site recognition during exon ligation has remained unclear. Here we present the 3.7Å cryo-EM structure of the yeast P complex spliceosome immediately after exon ligation. The 3'-splice site AG dinucleotide is recognized through non-Watson-Crick pairing with the 5'-splice site and the branch point adenosine. After the branching reaction protein factors work together to remodel the spliceosome and stabilize a conformation competent for 3'-splice site docking, thereby promoting exon ligation...
November 16, 2017: Science
https://www.readbyqxmd.com/read/29146870/structure-of-the-yeast-spliceosomal-postcatalytic-p-complex
#12
Shiheng Liu, Xueni Li, Lingdi Zhang, Jiansen Jiang, Ryan C Hill, Yanxiang Cui, Kirk C Hansen, Z Hong Zhou, Rui Zhao
The spliceosome undergoes dramatic changes in a splicing cycle. Structures of B, B(act), C, C*, and ILS complexes revealed mechanisms of 5' splice site (ss) recognition, branching, and intron release, but lacked information on 3' ss recognition, exon ligation and release. Here, we report a cryoEM structure of the postcatalytic P complex at 3.3Å resolution, revealing that 3' ss is mainly recognized through non-Watson-Crick basepairing with the 5' ss and branch point. Furthermore, an unidentified protein becomes stably associated with the P complex, securing the 3' exon and potentially regulating Prp22 activity...
November 16, 2017: Science
https://www.readbyqxmd.com/read/29145616/variation-in-methylmercury-metabolism-and-elimination-status-mermes-in-humans-following-fish-consumption
#13
Samuel W Caito, Brian P Jackson, Tracy Punshon, Thomas Scrimale, Alex Grier, Steven R Gill, Tanzy M Love, Gene E Watson, Edwin van Wijngaarden, Matthew D Rand
Evaluating the potential for methylmercury (MeHg) toxicity relies on accurately predicting the mercury (Hg) body burden that results from eating fish. Hg body burden is directly determined by the slow elimination kinetics of MeHg in the human body (kel ∼0.014days-1 or t1/2∼ 50days). Existing studies on MeHg half-life in humans demonstrate a wide range values (t1/2 = 30 to > 150days) and has lead to uncertainty in the derivation of a regulatory standard for acceptable daily oral intake. The causes of variation in MeHg toxicokinetics in humans remain little explored...
November 14, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29144760/multi-spectroscopic-and-theoretical-exploration-on-the-comparative-binding-aspects-of-the-bio-flavonoid-fisetin-with-triple-and-double-helical-forms-of-rna
#14
Sutanwi Bhuiya, Lucy Haque, Rapti Goswami, Suman Das
The interactions of RNA triplex (U.A*U) and duplex (A.U) with the naturally occurring flavonoid fisetin (FTN) have been examined at pH 7.0 using various spectroscopic, viscometric and theoretical studies. Experimental observations showed that the ligand binds with both double and triple helical forms of RNA, although the binding affinity is greater for the triplex structure (5.94106 M-1) compared to the duplex counterpart (1.0105 M-1). Thermal melting experiments revealed that the Hoogsteen base paired third strand of triplex was stabilized to a greater extent (~14 C) compared to the Watson-Crick base paired second strand (~4 C) in presence of FTN...
November 16, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29144493/adaptive-immune-receptor-repertoire-community-recommendations-for-sharing-immune-repertoire-sequencing-data
#15
Florian Rubelt, Christian E Busse, Syed Ahmad Chan Bukhari, Jean-Philippe Bürckert, Encarnita Mariotti-Ferrandiz, Lindsay G Cowell, Corey T Watson, Nishanth Marthandan, William J Faison, Uri Hershberg, Uri Laserson, Brian D Corrie, Mark M Davis, Bjoern Peters, Marie-Paule Lefranc, Jamie K Scott, Felix Breden, Eline T Luning Prak, Steven H Kleinstein
No abstract text is available yet for this article.
November 16, 2017: Nature Immunology
https://www.readbyqxmd.com/read/29143460/transient-neonatal-zinc-deficiency-in-exclusively-breastfed-preterm-infants
#16
Lauren Watson, David Cartwright, Luke A Jardine, David Pincus, Pieter Koorts, Sebastien Kury, Stephanie Bezieau, Shane George, Susan Moloney, Johanna Holt, David Coman
No abstract text is available yet for this article.
November 16, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29139595/structure-and-electronic-properties-of-unnatural-base-pairs-role-of-dispersion-interactions
#17
Ayan Datta, Sk Jahiruddin, Nilangshu Mandal
Recent report of the success of unnatural base pairs (UBPs) like d5SICS-dNaM to be incorporated within the gene sequence and get replicated with DNA is an important milestone in synthetic biology. Followed by this, several other UBPs like dTPT3-dNaM, dTPT3-dFIMO, dTPT3-IMO, dTPT3-FEMO, FTPT3-NaM, FTPT3-FIMO, FTPT3-IMO, FTPT3-FEMO, have demonstrated similar or better retention and fidelity inside cell. Among these base pairs, dNaM-dTPT3 has been optimized to be a better fit inside a pAIO plasmid. Based on both implicit and explicit dispersion corrected density functional theory (DFT) calculations, we show that although the set of UBPs are significantly diverse in their elemental and structural configuration they do share a common trait of favoring a slipped parallel stacked dimer arrangement...
November 15, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29137132/maternal-vitamin-d-status-and-the-relationship-with-neonatal-anthropometric-and-childhood-neurodevelopmental-outcomes-results-from-the-seychelles-child-development-nutrition-study
#18
Eamon Laird, Sally W Thurston, Edwin van Wijngaarden, Conrad F Shamlaye, Gary J Myers, Philip W Davidson, Gene E Watson, Emeir M McSorley, Maria S Mulhern, Alison J Yeates, Mary Ward, Helene McNulty, J J Strain
Vitamin D has an important role in early life; however, the optimal vitamin D status during pregnancy is currently unclear. There have been recent calls for pregnant women to maintain circulating 25-hydroxyvitamin D (25(OH)D) concentrations >100 nmol/L for health, yet little is known about the long-term potential benefits or safety of achieving such high maternal 25(OH)D concentrations for infant or child health outcomes. We examined maternal vitamin D status and its associations with infant anthropometric and later childhood neurocognitive outcomes in a mother-child cohort in a sun-rich country near the equator (4...
November 11, 2017: Nutrients
https://www.readbyqxmd.com/read/29136603/prolonged-grief-reactions-after-old-age-spousal-loss-and-centrality-of-the-loss-in-post-loss-identity
#19
Lena Eckholdt, Lynn Watson, Maja O'Connor
BACKGROUND: The loss of a spouse is a major life event. Previous research found that centrality of the loss to one's identity using Centrality of Event Scale (CES) is related to complicated bereavement reactions, such as depression, posttraumatic stress symptoms (PTS), and prolonged grief symptoms (PGS). This study aims to examine loss-centrality in elderly bereaved people up to 4 years post loss, to determine the relation of loss-centrality to complicated bereavement reactions, such as PGS, depression, and PTS, and to identify early predictors of loss-centrality...
November 8, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29135639/sleep-and-athletic-performance
#20
Andrew M Watson
Sleep is an essential component of health and well-being, with significant impacts on physical development, emotional regulation, cognitive performance, and quality of life. Along with being an integral part of the recovery and adaptive process between bouts of exercise, accumulating evidence suggests that increased sleep duration and improved sleep quality in athletes are associated with improved performance and competitive success. In addition, better sleep may reduce the risk of both injury and illness in athletes, not only optimizing health but also potentially enhancing performance through increased participation in training...
November 2017: Current Sports Medicine Reports
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