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https://www.readbyqxmd.com/read/28398839/foundational-and-translational-research-opportunities-to-improve-plant-health
#1
Richard W Michelmore, Gitta Coaker, Rebecca Bart, Gwyn A Beattie, Andrew Bent, Toby Bruce, Duncan Cameron, Jeff Dangl, Savithramma Dinesh-Kumar, Robert Edwards, Sebastian Eves-van den Akker, Walter Gassmann, Jean Greenberg, Richard Harrison, Ping He, Jagger Harvey, Alisa Huffaker, Scot Hulbert, Roger Innes, Jonathan D Jones, Isgouhi Kaloshian, Sophien Kamoun, Fumiaki Katagiri, Jan E Leach, Wenbo Ma, John M McDowell, June Medford, Blake Meyers, Rebecca Nelson, Richard Peter Oliver, Yiping Qi, Diane Saunders, Michael Shaw, Prasanta Subudhi, Leslie Torrance, Brett M Tyler, John Walsh
This whitepaper reports the deliberations of a workshop focused on biotic challenges to plant health held in Washington, D.C. in September 2016. Ensuring health of food plants is critical to maintaining the quality and productivity of crops and for sustenance of the rapidly growing human population. There is a close linkage between food security and societal stability; however, global food security is threatened by the vulnerability of our agricultural systems to numerous pests, pathogens, weeds, and environmental stresses...
April 11, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/28382404/prediction-of-hepatotoxicity-for-drugs-using-human-pluripotent-stem-cell-derived-hepatocytes
#2
Jong Hyun Kim, Min Wang, Jaehun Lee, Han-Jin Park, Chungseong Han, Hee Su Hong, Jeong Seong Kim, Geun Ho An, Kijung Park, Hee-Kyung Park, Shi Feng Zhu, Xiao-Bo Sun, Jong-Hoon Kim, Dong-Hun Woo
Drug-induced liver toxicity is a main reason for withdrawals of new drugs in late clinical phases and post-launch of the drugs. Thus, hepatotoxicity screening of drug candidates in pre-clinical stage is important for reducing drug attrition rates during the clinical development process. Here, we show commercially available hepatocytes that could be used for early toxicity evaluation of drug candidates. From our hepatic differentiation technology, we obtained highly pure (≥98%) hepatocytes from human embryonic stem cells (hESCs) having mature phenotypes and similar gene expression profiles with those of primary human tissues...
April 5, 2017: Cell Biology and Toxicology
https://www.readbyqxmd.com/read/28377799/electronic-tuning-of-self-healing-fluorophores-for-live-cell-and-single-molecule-imaging
#3
Qinsi Zheng, Steffen Jockusch, Zhou Zhou, Roger B Altman, Hong Zhao, Wesley Asher, Michael Holsey, Signe Mathiasen, Peter Geggier, Jonathan A Javitch, Scott C Blanchard
Bright, long-lasting organic fluorophores enable a broad range of imaging applications. "Self-healing" fluorophores, in which intra-molecularly linked protective agents quench photo-induced reactive species, exhibit both enhanced photostability and biological compatibility. However, the self-healing strategy has yet to achieve its predicted potential, particularly in the presence of ambient oxygen where live-cell imaging studies must often be performed. To identify key bottlenecks in this technology that can be used to guide further engineering developments, we synthesized a series of Cy5 derivatives linked to the protective agent cyclooctatetraene (COT) and examined the photophysical mechanisms curtailing their performance...
January 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28374934/the-hfea-should-be-regulating-add-on-treatments-for-ivf-icsi
#4
William L Ledger
The HFEA has come a long way since its inception in 1990. Public and professional concern was initially focused on the many ethical challenges presented by the new technologies used in ART, and in particular the need for consideration of the welfare of children that may be born after their use. Hence much of the time of the HFEA is spent on matters pertaining to medical ethics, such as reduction of the multiple embryo transfer rate (improving the health of ART children by avoiding multiple pregnancy), and identification of gamete donors to their offspring...
April 4, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28361077/extra-corporeal-membrane-oxygenation-support-ethical-dilemmas
#5
EDITORIAL
Tony Makdisi, George Makdisi
The vast expansion of patients treated with of extra corporeal membrane oxygenation (ECMO) emerge novel ethical questions about the use of this new technology. In regard the indications, duration of support and timing of withdrawal of support, these questions sometimes create disagreement among surrogates, between health care team and surrogates, and even disagreement among health care team, these disagreements occurs because of the extreme emergency of support initiation, the ambiguity of the outcome as well as lack of clarity on the intended treatment direction, whether it is ineffective, bridge to recovery or bridge to lifetime mechanical support or transplant...
March 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28333391/high-performance-nonfullerene-polymer-solar-cells-based-on-imide-functionalized-wide-bandgap-polymers
#6
Baobing Fan, Kai Zhang, Xiao-Fang Jiang, Lei Ying, Fei Huang, Yong Cao
High-performance nonfullerene polymer solar cells (PSCs) are developed by integrating the nonfullerene electron-accepting material 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2',3'-d']-s-indaceno[1,2-b:5,6-b']dithiophne) (ITIC) with a wide-bandgap electron-donating polymer PTzBI or PTzBI-DT, which consists of an imide functionalized benzotriazole (TzBI) building block. Detailed investigations reveal that the extension of conjugation can affect the optical and electronic properties, molecular aggregation properties, charge separation in the bulk-heterojunction films, and thus the overall photovoltaic performances...
March 23, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28324707/chemical-structure-based-predictive-model-for-the-oxidation-of-trace-organic-contaminants-by-sulfate-radical
#7
Tiantian Ye, Zongsu Wei, Richard Spinney, Chong-Jian Tang, Shuang Luo, Ruiyang Xiao, Dionysios D Dionysiou
Second-order rate constants [Formula: see text] for the reaction of sulfate radical anion (SO4(•-)) with trace organic contaminants (TrOCs) are of scientific and practical importance for assessing their environmental fate and removal efficiency in water treatment systems. Here, we developed a chemical structure-based model for predicting [Formula: see text] using 32 molecular fragment descriptors, as this type of model provides a quick estimate at low computational cost. The model was constructed using the multiple linear regression (MLR) and artificial neural network (ANN) methods...
March 6, 2017: Water Research
https://www.readbyqxmd.com/read/28258049/using-mobile-sensing-to-test-clinical-models-of-depression-social-anxiety-state-affect-and-social-isolation-among-college-students
#8
Philip I Chow, Karl Fua, Yu Huang, Wesley Bonelli, Haoyi Xiong, Laura E Barnes, Bethany A Teachman
BACKGROUND: Research in psychology demonstrates a strong link between state affect (moment-to-moment experiences of positive or negative emotionality) and trait affect (eg, relatively enduring depression and social anxiety symptoms), and a tendency to withdraw (eg, spending time at home). However, existing work is based almost exclusively on static, self-reported descriptions of emotions and behavior that limit generalizability. Despite adoption of increasingly sophisticated research designs and technology (eg, mobile sensing using a global positioning system [GPS]), little research has integrated these seemingly disparate forms of data to improve understanding of how emotional experiences in everyday life are associated with time spent at home, and whether this is influenced by depression or social anxiety symptoms...
March 3, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28231153/microbial-proteases-in-baked-goods-modification-of-gluten-and-effects-on-immunogenicity-and-product-quality
#9
REVIEW
Nina G Heredia-Sandoval, Maribel Y Valencia-Tapia, Ana M Calderón de la Barca, Alma R Islas-Rubio
Gluten-related diseases are a range of inflammatory disorders of the small intestine, characterized by an adverse response to gluten ingestion; therefore, the treatment is a gluten withdrawal. In spite of the increased market of gluten-free products, widely available breads with high acceptability are still missing due to the technological challenge of substituting the special gluten properties. Instead of using alternative ingredients for baking, some attempts have been done to decrease gluten immunogenicity by its enzymatic degradation with microbial proteases...
August 30, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28220988/-the-gaze-heuristic-biography-of-an-adaptively-rational-decision-process
#10
Robert P Hamlin
This article is a case study that describes the natural and human history of the gaze heuristic. The gaze heuristic is an interception heuristic that utilizes a single input (deviation from a constant angle of approach) repeatedly as a task is performed. Its architecture, advantages, and limitations are described in detail. A history of the gaze heuristic is then presented. In natural history, the gaze heuristic is the only known technique used by predators to intercept prey. In human history the gaze heuristic was discovered accidentally by Royal Air Force (RAF) fighter command just prior to World War II...
February 21, 2017: Topics in Cognitive Science
https://www.readbyqxmd.com/read/28213582/a-scale-up-mock-up-comparison-of-student-learning-gains-in-high-and-low-tech-active-learning-environments
#11
Paula A G Soneral, Sara A Wyse
Student-centered learning environments with upside-down pedagogies (SCALE-UP) are widely implemented at institutions across the country, and learning gains from these classrooms have been well documented. This study investigates the specific design feature(s) of the SCALE-UP classroom most conducive to teaching and learning. Using pilot survey data from instructors and students to prioritize the most salient SCALE-UP classroom features, we created a low-tech "Mock-up" version of this classroom and tested the impact of these features on student learning, attitudes, and satisfaction using a quasi--experimental setup...
2017: CBE Life Sciences Education
https://www.readbyqxmd.com/read/28212952/the-challenge-of-conditional-reimbursement-stopping-reimbursement-can-be-more-difficult-than-not-starting-in-the-first-place
#12
E J van de Wetering, Job van Exel, Werner B F Brouwer
BACKGROUND: Conditional reimbursement of new health technologies is increasingly considered as a useful policy instrument. It allows gathering more robust evidence regarding effectiveness and cost-effectiveness of new technologies without delaying market access. Nevertheless, the literature suggests that ending reimbursement and provision of a technology when it proves not to be effective or cost-effective in practice may be difficult. OBJECTIVES: To investigate how policymakers and the general public in the Netherlands value removing a previously reimbursed treatment from the basic benefits package relative to not including a new treatment...
January 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28163748/weight-loss-technology-for-people-with-treated-type-2-diabetes-a-randomized-controlled-trial
#13
Kuat Oshakbayev, Bibazhar Dukenbayeva, Gulnar Togizbayeva, Aigul Durmanova, Meruyert Gazaliyeva, Abdul Sabir, Aliya Issa, Alisher Idrisov
BACKGROUND: The prevalence of type 2 diabetes is increasing in worldwide despite the development of new treatment methods. Aim of the study was to evaluate a weight loss method on body composition, glycemic, lipid and hormone profiles, blood pressure and reactive oxygen species in people with treated type 2 diabetes. METHODS: A 24-week open, prospective, randomized, controlled clinical trial including 272 adult patients with treated type 2 diabetes was performed...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28138858/strategies-to-increase-adenoma-detection-rates
#14
REVIEW
Eelco C Brand, Michael B Wallace
The adenoma detection rate (ADR), i.e., the proportion of average risk patients with at least one adenoma detected during screening colonoscopy, is inversely associated with the development of interval colorectal cancer. Increasing the ADR is therefore an important proxy for increase in quality and efficacy of (screening) colonoscopy. Several potentially modifiable factors, such as, procedural and technological factors, and quality improvement programs, and their effect on the ADR will be reviewed. Procedural factors, such as, bowel preparation, withdrawal time, and position changes of the patient are associated with the ADR...
March 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28125722/antimicrobial-use-and-veterinary-care-among-agro-pastoralists-in-northern-tanzania
#15
Mark A Caudell, Marsha B Quinlan, Murugan Subbiah, Douglas R Call, Casey J Roulette, Jennifer W Roulette, Adam Roth, Louise Matthews, Robert J Quinlan
Frequent and unregulated use of antimicrobials (AM) in livestock requires public health attention as a likely selection pressure for resistant bacteria. Studies among small-holders, who own a large percentage of the world's livestock, are vital for understanding how practices involving AM use might influence resistance. We present a cultural-ecological mixed-methods analysis to explore sectors of veterinary care, loosely regulated AM use, and human exposure to AMs through meat and milk consumption across three rural to peri-urban Tanzanian ethnic groups (N = 415 households)...
2017: PloS One
https://www.readbyqxmd.com/read/28118369/autonomic-modulation-in-duchenne-muscular-dystrophy-during-a-computer-task-a-prospective-control-trial
#16
Mayra Priscila Boscolo Alvarez, Talita Dias da Silva, Francis Meire Favero, Vitor Engrácia Valenti, Rodrigo Daminello Raimundo, Luiz Carlos Marques Vanderlei, David M Garner, Carlos Bandeira de Mello Monteiro
INTRODUCTION: Duchenne Muscular Dystrophy (DMD) is characterized by progressive muscle weakness that can lead to disability. Owing to functional difficulties faced by individuals with DMD, the use of assistive technology is essential to provide or facilitate functional abilities. In DMD, cardiac autonomic dysfunction has been reported in addition to musculoskeletal impairment. Consequently, the objective was to investigate acute cardiac autonomic responses, by Heart Rate Variability (HRV), during computer tasks in subjects with DMD...
2017: PloS One
https://www.readbyqxmd.com/read/28087399/advances-with-using-crispr-cas-mediated-gene-editing-to-treat-infections-with-hepatitis-b-virus-and-hepatitis-c-virus
#17
REVIEW
Buhle Moyo, Kristie Bloom, Tristan Scott, Abdullah Ely, Patrick Arbuthnot
Chronic infections with hepatitis B and hepatitis C viruses (HBV and HCV) account for the majority of cases of cirrhosis and hepatocellular carcinoma. Current therapies for the infections have limitations and improved efficacy is necessary to prevent complications in carriers of the viruses. In the case of HBV persistence, the replication intermediate comprising covalently closed circular DNA (cccDNA) is particularly problematic. Licensed therapies have little effect on cccDNA and HBV replication relapses following treatment withdrawal...
January 10, 2017: Virus Research
https://www.readbyqxmd.com/read/28071894/noninvasive-monitoring-of-blood-glucose-with-raman-spectroscopy
#18
Rishikesh Pandey, Santosh Kumar Paidi, Tulio A Valdez, Chi Zhang, Nicolas Spegazzini, Ramachandra Rao Dasari, Ishan Barman
The successful development of a noninvasive blood glucose sensor that can operate reliably over sustained periods of time has been a much sought after but elusive goal in diabetes management. Since diabetes has no well-established cure, control of elevated glucose levels is critical for avoiding severe secondary health complications in multiple organs including the retina, kidney and vasculature. While fingerstick testing continues to be the mainstay of blood glucose detection, advances in electrochemical sensing-based minimally invasive approaches have opened the door for alternate methods that would considerably improve the quality of life for people with diabetes...
January 10, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28053072/the-promise-of-new-technologies-to-reduce-refine-or-replace-animal-use-while-reducing-risks-of-drug-induced-liver-injury-in-pharmaceutical-development
#19
Frank D Sistare, William B Mattes, Edward L LeCluyse
Drug induced liver injury (DILI) has contributed more to marketed pharmaceutical withdrawals and clinical development failures than any other human organ toxicity. DILI seen in animal studies also frequently leads to the discontinuation of promising drug candidates very early in the pipeline. This manuscript reviews and critically assesses the current regulatory expectations; the current drug development approaches, strategies, and gaps; and the numerous exciting opportunities becoming available to address these gaps through technological advances...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/28017642/immunity-duration-of-a-recombinant-adenovirus-type-5-vector-based-ebola-vaccine-and-a-homologous-prime-boost-immunisation-in-healthy-adults-in-china-final-report-of-a-randomised-double-blind-placebo-controlled-phase-1-trial
#20
Jing-Xin Li, Li-Hua Hou, Fan-Yue Meng, Shi-Po Wu, Yue-Mei Hu, Qi Liang, Kai Chu, Zhe Zhang, Jun-Jie Xu, Rong Tang, Wen-Juan Wang, Pei Liu, Jia-Lei Hu, Li Luo, Rong Jiang, Feng-Cai Zhu, Wei Chen
BACKGROUND: The 2013-15 Ebola virus disease epidemic in west Africa greatly accelerated the development of Ebola vaccine. We aimed to analyse the immune persistence induced by one shot of an adenovirus type-5 vector-based Ebola virus vaccine up to 6 months and the effect of boosting with a homologous vector in healthy adults in China. METHODS: In a randomised, double-blind, placebo-controlled, phase 1 clinical trial in one site in Jiangsu Province, China, 120 healthy adults aged 18-60 years received an initial dose of intramuscular adenovirus type-5 Ebola virus vaccine of 4·0 × 10(10) viral particles, 1·6 × 10(11) viral particles, or placebo, and were followed up to day 168...
March 2017: Lancet Global Health
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