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https://www.readbyqxmd.com/read/28636259/variants-in-kat6a-and-pituitary-anomalies
#1
Nitash Zwaveling-Soonawala, Saskia M Maas, Marielle Alders, Charles B Majoie, Eric Fliers, A S Paul van Trotsenburg, Raoul C M Hennekam
No abstract text is available yet for this article.
June 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28636198/actin-filament-reorganisation-controlled-by-the-scar-wave-complex-mediates-stomatal-response-to-darkness
#2
Jean-Charles Isner, Zaoxu Xu, Joaquim Miguel Costa, Fabien Monnet, Thomas Batstone, Xiaobin Ou, Michael J Deeks, Bernard Genty, Kun Jiang, Alistair M Hetherington
Stomata respond to darkness by closing to prevent excessive water loss during the night. Although the reorganisation of actin filaments during stomatal closure is documented, the underlying mechanisms responsible for dark-induced cytoskeletal arrangement remain largely unknown. We used genetic, physiological and cell biological approaches to show that reorganisation of the actin cytoskeleton is required for dark-induced stomatal closure. The opal5 mutant does not close in response to darkness but exhibits wild-type (WT) behaviour when exposed to abscisic acid (ABA) or CaCl2 ...
June 21, 2017: New Phytologist
https://www.readbyqxmd.com/read/28636165/a-feasibility-and-safety-study-of-intracoronary-hemodilution-during-primary-coronary-angioplasty-in-order-to-reduce-reperfusion-injury-in-myocardial-infarction
#3
Michael McGarvey, Omar Ali, M Bilal Iqbal, Charles Ilsley, Joyce Wong, Carlo Di Mario, Simon Redwood, Tiffany Patterson, Dudley J Pennell, Paula Rogers, Miles Dalby
OBJECTIVES: We designed a pilot study to evaluate safety and feasibility of an inexpensive and simple approach to intracoronary hemodilution during primary angioplasty (PPCI) to reduce reperfusion injury. INTRODUCTION: Early revascularization in acute myocardial infarction decreases infarct size and improves outcomes. However, abrupt restoration of coronary flow results in myocardial reperfusion injury and increased final infarct size. Dilution of coronary blood during revascularization may help reduce this damage...
June 21, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28635614/advanced-treatment-planning-using-direct-4d-optimisation-for-pencil-beam-scanned-particle-therapy
#4
Kinga Bernatowicz, Ye Zhang, Rosalind Lucy Perrin, Damien Charles Weber, Antony John Lomax
We report on development of a new four-dimensional (4D) optimisation approach for scanned proton beams, which incorporates both irregular motion patterns and the delivery dynamics of the treatment machine into the plan optimiser. Furthermore, we assess the effectiveness of this technique to reduce dose to critical structures in proximity to moving targets, while maintaining effective target dose homogeneity and coverage. The proposed approach has been tested using both a simulated phantom and a clinical liver cancer case, and allows for realistic 4D calculations and optimisation using irregular breathing patterns extracted from e...
June 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28635504/applying-rasch-model-analysis-in-the-development-of-the-cantonese-tone-identification-test-cantit
#5
Kathy Y S Lee, Joffee H S Lam, Kit T Y Chan, Charles Andrew van Hasselt, Michael C F Tong
OBJECTIVE: Applying Rasch analysis to evaluate the internal structure of a lexical tone perception test known as the Cantonese Tone Identification Test (CANTIT). DESIGN: A 75-item pool (CANTIT-75) with pictures and sound tracks was developed. Respondents were required to make a four-alternative forced choice on each item. A short version of 30 items (CANTIT-30) was developed based on fit statistics, difficulty estimates, and content evaluation. Internal structure was evaluated by fit statistics and Rasch Factor Analysis (RFA)...
March 1, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28635404/safety-and-efficacy-of-hepasphere-50-100%C3%A2-%C3%AE-m-in-the-treatment-of-hepatocellular-carcinoma
#6
Charles Edouard Zurstrassen, Luiz Paulo De Oliveira Gireli, Chiang Jeng Tyng, Almir Galvão Vieira Bitencourt, Marcos Duarte Guimarães, Paula Nicole Vieira Barbosa, Aline Cristine Barbosa Santos Cavalcante, João Paulo Matushita Junior, Mauricio Kauark Amoedo, Felipe Jose Coimbra, Rogério Camargo Pinheiro Alves, Rubens Chojniak
AIM: To evaluate the effects of HepaSphere 50-100 μm (Merit Medical) as a doxorubicin carrier and embolization agent for the treatment of hepatocellular carcinoma (HCC). MATERIAL AND METHODS: A prospective analysis of 18 patients recruited from a national cancer center was conducted. This analysis evaluated the efficacy and safety of HepaSphere, as expressed by the treatment response rate (measured by the modified Response Evaluation Criteria in Solid Tumors, mRECIST) and by the prevalence of treatment-related adverse events, respectively...
February 14, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28634675/wild-capuchin-monkeys-anticipate-the-amount-of-ripe-fruit-in-natural-trees
#7
María Paula Tujague, Charles H Janson
Tropical forests have a high diversity of tree species which have very low densities and vary across time in their seasons of peak fruiting and maturation rates. As evidence of the ability of primates to track or anticipate changes in fruit production at individual trees, researchers have used the increased speed of primate groups toward more rewarding food patches. We analyzed the speed of approach to natural trees of wild capuchin monkeys under the effect of scramble competition, after excluding any plausible visual, olfactory and auditory cues...
June 20, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28634656/patient-reported-eortc-qlq-cipn20-versus-physician-reported-ctcae-quantification-of-oxaliplatin-and-paclitaxel-carboplatin-induced-peripheral-neuropathy-in-ncctg-alliance-clinical-trials
#8
Jennifer Le-Rademacher, Rahul Kanwar, Drew Seisler, Deirdre R Pachman, Rui Qin, Alexej Abyzov, Kathryn J Ruddy, Michaela S Banck, Ellen M Lavoie Smith, Susan G Dorsey, Neil K Aaronson, Jeff Sloan, Charles L Loprinzi, Andreas S Beutler
PURPOSE: Clinical practice guidelines on chemotherapy-induced peripheral neuropathy (CIPN) use the NCI Common Terminology Criteria for Adverse Events (CTCAE), while recent clinical trials employ a potentially superior measure, the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-CIPN twenty-item scale (QLQ-CIPN20), a patient-reported outcome (PRO). Practitioners and researchers lack guidance, regarding how QLQ-CIPN20 results relate to the traditional CTCAE during the serial assessment of patients undergoing chemotherapy...
June 20, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28634611/micro-and-nano-patterned-conductive-graphene-peg-hybrid-scaffolds-for-cardiac-tissue-engineering
#9
Alec S T Smith, Hyok Yoo, Hyunjung Yi, Eun Hyun Ahn, Justin H Lee, Guozheng Shao, Ekaterina Nagornyak, Michael A Laflamme, Charles E Murry, Deok-Ho Kim
A lack of electrical conductivity and structural organization in currently available biomaterial scaffolds limits their utility for generating physiologically representative models of functional cardiac tissue. Here we report on the development of scalable, graphene-functionalized topographies with anisotropic electrical conductivity for engineering the structural and functional phenotypes of macroscopic cardiac tissue constructs. Guided by anisotropic electroconductive and topographic cues, the tissue constructs displayed structural property enhancement in myofibrils and sarcomeres, and exhibited significant increases in the expression of cell-cell coupling and calcium handling proteins, as well as in action potential duration and peak calcium release...
June 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28634334/image-guided-transplantation-of-single-cells-in-the-bone-marrow-of-live-animals
#10
Raphaël Turcotte, Clemens Alt, Judith M Runnels, Kyoko Ito, Juwell W Wu, Walid Zaher, Luke J Mortensen, Lev Silberstein, Daniel C Côté, Andrew L Kung, Keisuke Ito, Charles P Lin
Transplantation of a single hematopoietic stem cell is an important method for its functional characterization, but the standard transplantation protocol relies on cell homing to the bone marrow after intravenous injection. Here, we present a method to transplant single cells directly into the bone marrow of live mice. We developed an optical platform that integrates a multiphoton microscope with a laser ablation unit for microsurgery and an optical tweezer for cell micromanipulation. These tools allow image-guided single cell transplantation with high spatial control...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634306/representations-of-time-varying-cochlear-implant-stimulation-in-auditory-cortex-of-awake-marmosets-callithrix-jacchus
#11
Luke A Johnson, Charles C Della Santina, Xiaoqin Wang
Electrical stimulation of the auditory periphery organ by cochlear implant (CI) generates highly synchronized inputs to the auditory system. It has long been thought such inputs would lead to highly synchronized neural firing along the ascending auditory pathway. However, neurophysiological studies with hearing animals have shown that the central auditory system progressively converts temporal representations of time-varying sounds to firing rate-based representations. It is not clear whether this coding principle also applies to highly synchronized CI inputs...
June 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28634199/characterising-cis-regulatory-variation-in-the-transcriptome-of-histologically-normal-and-tumour-derived-pancreatic-tissues
#12
Mingfeng Zhang, Soren Lykke-Andersen, Bin Zhu, Wenming Xiao, Jason W Hoskins, Xijun Zhang, Lauren M Rost, Irene Collins, Martijn van de Bunt, Jinping Jia, Hemang Parikh, Tongwu Zhang, Lei Song, Ashley Jermusyk, Charles C Chung, Bin Zhu, Weiyin Zhou, Gail L Matters, Robert C Kurtz, Meredith Yeager, Torben Heick Jensen, Kevin M Brown, Halit Ongen, William R Bamlet, Bradley A Murray, Mark I McCarthy, Stephen J Chanock, Nilanjan Chatterjee, Brian M Wolpin, Jill P Smith, Sara H Olson, Gloria M Petersen, Jianxin Shi, Laufey Amundadottir
OBJECTIVE: To elucidate the genetic architecture of gene expression in pancreatic tissues. DESIGN: We performed expression quantitative trait locus (eQTL) analysis in histologically normal pancreatic tissue samples (n=95) using RNA sequencing and the corresponding 1000 genomes imputed germline genotypes. Data from pancreatic tumour-derived tissue samples (n=115) from The Cancer Genome Atlas were included for comparison. RESULTS: We identified 38 615 cis-eQTLs (in 484 genes) in histologically normal tissues and 39 713 cis-eQTL (in 237 genes) in tumour-derived tissues (false discovery rate <0...
June 20, 2017: Gut
https://www.readbyqxmd.com/read/28633563/mammalian-synthetic-biology-engineering-biological-systems
#13
Joshua B Black, Pablo Perez-Pinera, Charles A Gersbach
The programming of new functions into mammalian cells has tremendous application in research and medicine. Continued improvements in the capacity to sequence and synthesize DNA have rapidly increased our understanding of mechanisms of gene function and regulation on a genome-wide scale and have expanded the set of genetic components available for programming cell biology. The invention of new research tools, including targetable DNA-binding systems such as CRISPR/Cas9 and sensor-actuator devices that can recognize and respond to diverse chemical, mechanical, and optical inputs, has enabled precise control of complex cellular behaviors at unprecedented spatial and temporal resolution...
June 21, 2017: Annual Review of Biomedical Engineering
https://www.readbyqxmd.com/read/28633526/reduced-graphene-oxide-poly-acrylic-acid-aerogels-as-a-three-dimensional-replacement-for-metal-foil-current-collectors-in-lithium-ion-batteries
#14
Han Xiao, Joshua P Pender, Mackenzie Meece-Rayle, J Pedro de Souza, Kyle C Klavetter, Heonjoo Ha, Jie Lin, Adam Heller, Christopher J Ellison, Charles Buddie Mullins
We report the synthesis and properties of a low-density (~5 mg/cm3) and highly-porous (99.6% void space) three-dimensional reduced graphene oxide (rGO)/poly(acrylic acid) (PAA) nanocomposite aerogel as the scaffold for cathode materials in lithium-ion batteries (LIBs). The rGO-PAA is both simple and starts from readily-available graphite and PAA thereby providing a scalable fabrication procedure. The scaffold can support as much as a 75 mg/cm2 loading of LiFePO4 (LFP) in a ~ 430 µm thick layer, and the porosity of the aerogel is tunable by compression; the flexible aerogel can be compressed 30-fold (i...
June 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28633484/disparities-in-cigarette-smoking-and-use-of-other-tobacco-products-in-minnesota-2003-14
#15
Raymond G Boyle, Joanne D'silva, Cassandra A Stanton, Charles Carusi, Zhiqun Tang
Background: Despite efforts to reduce disadvantages across society, widening health disparities have been observed in Minnesota. This research examined whether observed declines in state-wide smoking prevalence were experienced equally by all adults with varying educational attainment. Methods: Serial cross-sectional data from the 2003, 2007, 2010 and 2014 Minnesota Adult Tobacco Survey (MATS) were analyzed. Weighted regression analyses for smoking status, time to first cigarette, cigarettes per day and non-cigarette other tobacco products (OTP) were conducted across education levels...
June 17, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/28633331/does-timing-of-antiretroviral-treatment-influence-treatment-outcomes-of-visceral-leishmaniasis-in-northwest-ethiopia
#16
Endashaw M Aderie, Ermias Diro, Rony Zachariah, Marcio Silveira da Fonseca, Charles Abongomera, Bethabile L Dolamo, Koert Ritmeijer
Background: Visceral leishmaniasis (VL) patients with HIV co-infection should receive antiretroviral treatment (ART). However, the best timing for initiation of ART is not known. Among such individuals, we assessed the influence of ART timing on VL outcomes. Methods: A retrospective cohort study was conducted in Northwest Ethiopia among VL patients starting ART between 2008 and 2015. VL outcomes were assessed by the twelfth month of starting ART, within 4 weeks of VL diagnosis or thereafter...
March 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28633154/localized-bilateral-juxtafoveal-photoreceptor-loss-in-poems-a-new-association
#17
Christopher K Hwang, Anton M Kolomeyer, Alexander J Brucker, Jessica I W Morgan, Charles W Nichols, Tomas S Aleman
No abstract text is available yet for this article.
July 2017: Retina
https://www.readbyqxmd.com/read/28632987/the-usher-syndrome-type-iiib-histidyl-trna-synthetase-mutation-confers-temperature-sensitivity
#18
Jamie A Abbott, Ethan Guth, Cindy Kim, Cathy Regan, Victoria M Siu, Charles Anthony Rupar, Borries Demeler, Christopher S Francklyn, Susan M Robey-Bond
Histidyl-tRNA synthetase (HARS) is a highly conserved translation factor that plays an essential role in protein synthesis. HARS has been implicated in the human syndromes Charcot-Marie-Tooth (CMT) Type 2W and Type IIIB Usher (USH3B). The USH3B mutation, which encodes an Y454S substitution in HARS, is inherited in an autosomal recessive fashion and associated with childhood deafness, blindness and episodic hallucinations during acute illness. The biochemical basis of the pathophysiologies linked to USH3B is currently unknown...
June 20, 2017: Biochemistry
https://www.readbyqxmd.com/read/28632951/improving-the-quality-of-maternity-services-in-uganda-through-accelerated-implementation-of-essential-interventions-by-healthcare-professional-associations
#19
Cintia Spira, Amata Kwizera, Sue Jacob, Dinah Amogin, Joseph Ngonzi, Charles P Namisi, Romano Byaruhanga, Hamid Rushwan, Peter Cooper, Frances Day-Stirk, Mabel Berrueta, Ezequiel García-Elorrio, José M Belizán
OBJECTIVE: To assess whether the implementation of a package of activities through the joint action of the three international healthcare professionals associations (HCPAs) increased the use of intrapartum and postnatal essential interventions (EIs) in two hospitals in Uganda. METHODS: A non-controlled before-and-after study was undertaken to evaluate the effect of a package of activities designed to change practice relating to nine EIs among providers. Coverage of the EIs was measured in a 3-month pre-implementation period and a 3-month post-implementation period in 2014...
June 20, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28632865/effect-of-first-line-chemotherapy-combined-with-cetuximab-or-bevacizumab-on-overall-survival-in-patients-with-kras-wild-type-advanced-or-metastatic-colorectal-cancer-a-randomized-clinical-trial
#20
Alan P Venook, Donna Niedzwiecki, Heinz-Josef Lenz, Federico Innocenti, Briant Fruth, Jeffrey A Meyerhardt, Deborah Schrag, Claire Greene, Bert H O'Neil, James Norman Atkins, Scott Berry, Blase N Polite, Eileen M O'Reilly, Richard M Goldberg, Howard S Hochster, Richard L Schilsky, Monica M Bertagnolli, Anthony B El-Khoueiry, Peter Watson, Al B Benson, Daniel L Mulkerin, Robert J Mayer, Charles Blanke
Importance: Combining biologic monoclonal antibodies with chemotherapeutic cytotoxic drugs provides clinical benefit to patients with advanced or metastatic colorectal cancer, but the optimal choice of the initial biologic therapy in previously untreated patients is unknown. Objective: To determine if the addition of cetuximab vs bevacizumab to the combination of leucovorin, fluorouracil, and oxaliplatin (mFOLFOX6) regimen or the combination of leucovorin, fluorouracil, and irinotecan (FOLFIRI) regimen is superior as first-line therapy in advanced or metastatic KRAS wild-type (wt) colorectal cancer...
June 20, 2017: JAMA: the Journal of the American Medical Association
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