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Koonal K Shah, Aki Tsuchiya, Allan J Wailoo
A source of debate in the health care priority setting literature is whether to weight health gains to account for equity considerations, such as concern for those with very short life expectancy. This paper reviews the empirical evidence in the published social sciences literature relevant to the following research question: do members of the public wish to place greater weight on a unit of health gain for end-of-life patients than on that for other types of patients? An electronic search of the Social Sciences Citation Index for articles published until October 2017 was conducted, with follow-up of references to obtain additional data...
March 7, 2018: Social Science & Medicine
Khushboo Patel, Basant Roondhe, Shweta D Dabhi, Prafulla K Jha
Recently predicted and grown new single element two dimensional (2D) material borophene gathered tremendous research interest due to its structural, electronic and other properties. Using first principles based dispersion corrected density functional calculations, we have studied interaction of two toxic gases phosgene (COCl2 ) and carbon monoxide (CO) with borophene to understand the role of borophene as biosensor and carriers in drug delivery. The sensing behaviour of borophene towards COCl2 and CO has been studied by calculating the binding energy and electronic density of states (DOS)...
March 7, 2018: Journal of Hazardous Materials
Andrew Kaufman, Ezen Choo, Anna Koh, Robin Dando
Despite evidence that the ability to taste is weakened by obesity and can be rescued with weight loss intervention, few studies have investigated the molecular effects of obesity on the taste system. Taste bud cells undergo continual turnover even in adulthood, exhibiting an average life span of only a few weeks, tightly controlled by a balance of proliferation and cell death. Recent data reveal that an acute inflammation event can alter this balance. We demonstrate that chronic low-grade inflammation brought on by obesity reduces the number of taste buds in gustatory tissues of mice-and is likely the cause of taste dysfunction seen in obese populations-by upsetting this balance of renewal and cell death...
March 2018: PLoS Biology
Kevin J Mahoney, Ellen K Mahoney, Carmen Morano, Andrew DeVellis
Unmet need for long-term services and supports has been linked to a variety of harmful health outcomes. One suggested strategy for ameliorating unmet need is to give participants control of a budget and let them construct individualized plans. The evaluation of the Cash and Counseling controlled experiment (CCDE) documented a marked reduction in unmet need when compared to traditional agency-based solutions, but it also showed significant unmet needs remained. This paper reanalyzes 76 case studies from the CCDE to, for the first time gain an understanding of what those unmet needs are, who sees them, and what participants, caregivers and support brokers think might reduce this problem...
March 20, 2018: Journal of Gerontological Social Work
Udesh Dhawan, Ming-Wen Sue, Kuan Chun Lan, Waradee Buddhakosai, Pao Hui Huang, Yi Cheng Chen, Po-Chun Chen, Wen-Liang Chen
Epithelial to Mesenchymal transition (EMT) is a highly orchestrated process motivated by the nature of physical, chemical composition of Tumor Microenvironment (TME). The role of physical framework of the tumor microenvironment in guiding cells towards EMT is poorly understood. To investigate this, breast cancer MDA-MB-231 and MCF-7 cells were cultured on nanochips comprising of Tantalum oxide nanodots ranging in diameter from 10 to 200nm, fabricated through electrochemical approach and collectively referred to as artificial microenvironments...
March 20, 2018: ACS Applied Materials & Interfaces
Motohiro Tani, Kouichi Funato
Life is dependent on the protection of cellular functions from various stresses. Sphingolipids are essential biomembrane components in eukaryotic organisms, which are exposed to risks that may disrupt sphingolipid metabolism, threatening their lives. Defects of the sphingolipid biosynthesis pathway cause profound defects of various cellular functions and ultimately cell death. Therefore, cells are equipped with defense response mechanisms against aberrant metabolism of sphingolipids, the most characterized one being the target of rapamycin complex 2-mediated regulation of sphingolipid biosynthesis in budding yeast Saccharomyces cerevisiae...
March 19, 2018: Current Genetics
Suzanne C Dixon-Suen, Christina M Nagle, Aaron P Thrift, Paul D P Pharoah, Ailith Ewing, Celeste Leigh Pearce, Wei Zheng, Georgia Chenevix-Trench, Peter A Fasching, Matthias W Beckmann, Diether Lambrechts, Ignace Vergote, Sandrina Lambrechts, Els Van Nieuwenhuysen, Mary Anne Rossing, Jennifer A Doherty, Kristine G Wicklund, Jenny Chang-Claude, Audrey Y Jung, Kirsten B Moysich, Kunle Odunsi, Marc T Goodman, Lynne R Wilkens, Pamela J Thompson, Yurii B Shvetsov, Thilo Dörk, Tjoung-Won Park-Simon, Peter Hillemanns, Natalia Bogdanova, Ralf Butzow, Heli Nevanlinna, Liisa M Pelttari, Arto Leminen, Francesmary Modugno, Roberta B Ness, Robert P Edwards, Joseph L Kelley, Florian Heitz, Andreas du Bois, Philipp Harter, Ira Schwaab, Beth Y Karlan, Jenny Lester, Sandra Orsulic, Bobbie J Rimel, Susanne K Kjær, Estrid Høgdall, Allan Jensen, Ellen L Goode, Brooke L Fridley, Julie M Cunningham, Stacey J Winham, Graham G Giles, Fiona Bruinsma, Roger L Milne, Melissa C Southey, Michelle A T Hildebrandt, Xifeng Wu, Karen H Lu, Dong Liang, Douglas A Levine, Maria Bisogna, Joellen M Schildkraut, Andrew Berchuck, Daniel W Cramer, Kathryn L Terry, Elisa V Bandera, Sara H Olson, Helga B Salvesen, Liv Cecilie Vestrheim Thomsen, Reidun K Kopperud, Line Bjorge, Lambertus A Kiemeney, Leon F A G Massuger, Tanja Pejovic, Amanda Bruegl, Linda S Cook, Nhu D Le, Kenneth D Swenerton, Angela Brooks-Wilson, Linda E Kelemen, Jan Lubiński, Tomasz Huzarski, Jacek Gronwald, Janusz Menkiszak, Nicolas Wentzensen, Louise Brinton, Hannah Yang, Jolanta Lissowska, Claus K Høgdall, Lene Lundvall, Honglin Song, Jonathan P Tyrer, Ian Campbell, Diana Eccles, James Paul, Rosalind Glasspool, Nadeem Siddiqui, Alice S Whittemore, Weiva Sieh, Valerie McGuire, Joseph H Rothstein, Steven A Narod, Catherine Phelan, Harvey A Risch, John R McLaughlin, Hoda Anton-Culver, Argyrios Ziogas, Usha Menon, Simon A Gayther, Susan J Ramus, Aleksandra Gentry-Maharaj, Anna H Wu, Malcolm C Pike, Chiu-Chen Tseng, Jolanta Kupryjanczyk, Agnieszka Dansonka-Mieszkowska, Agnieszka Budzilowska, Iwona K Rzepecka, Penelope M Webb
BACKGROUND: Observational studies suggest greater height is associated with increased ovarian cancer risk, but cannot exclude bias and/or confounding as explanations for this. Mendelian randomisation (MR) can provide evidence which may be less prone to bias. METHODS: We pooled data from 39 Ovarian Cancer Association Consortium studies (16,395 cases; 23,003 controls). We applied two-stage predictor-substitution MR, using a weighted genetic risk score combining 609 single-nucleotide polymorphisms...
March 20, 2018: British Journal of Cancer
Roger Collier
No abstract text is available yet for this article.
March 19, 2018: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
Laura Eggertson
No abstract text is available yet for this article.
March 19, 2018: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
Beatrice Bergström, Hans Carlsten, Anna-Karin Hultgård Ekwall
BACKGROUND: A key feature of joints in rheumatoid arthritis (RA) is the formation of hyperplastic destructive pannus tissue, which is orchestrated by activated fibroblast-like synoviocytes (FLS). We have demonstrated that the RA risk gene and tumor suppressor Limb bud and heart development (LBH) regulates cell cycle progression in FLS. Methotrexate (MTX) is the first-line treatment for RA, but its mechanisms of action remain incompletely understood. Here, we studied the effects of MTX on mitogen-induced FLS proliferation and expression of cell cycle regulators in vitro...
March 20, 2018: Arthritis Research & Therapy
Wolf Achim Hassenpflug, Tobias Obser, Julia Bode, Florian Oyen, Ulrich Budde, Sonja Schneppenheim, Reinhard Schneppenheim, Maria Alexandra Brehm
Upshaw-Schulman syndrome (USS) is caused by severe ADAMTS13 (a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13) deficiency due to homozygous or compound heterozygous mutations in the ADAMTS13 gene. Previous studies suggest three possible disease mechanisms: (1) reduced secretion of ADAMTS13 variants, (2) impaired proteolytic activity, (3) defective biosynthesis due to nonsense-mediated decay. Expression studies have failed to establish a clear genotype/phenotype correlation that could explain the significant variability in the age of onset and patients' clinical courses...
March 19, 2018: Thrombosis and Haemostasis
Małgorzata Jakubowicz, Witold Nowak, Łukasz Gałgański, Danuta Babula-Skowrońska
In this report, the members of PP2C, SnRK2a and Rboh oxidase families from Arabidopsis and poplar were studied in silico, and the expression profiles of the some of them were specified in Populus tremula buds and adult leaves. In poplars, the counterparts of ABI1- and ABI2-like protein phosphatases are lacking, but poplar genomes encode three HAB-like proteins denoted in this work as HAB1, HAB3a and HAB3b, and the counterparts of the two latter ones are absent in Arabidopsis. Nonetheless, they may be present in other species...
March 7, 2018: Journal of Plant Physiology
Martin Davi, Markus Mann, Zili Ma, Felix Schrader, Andreas Drichel, Serhiy Budnyk, Anna Rokicinska, Piotr Kustrowski, Richard Dronskowski, Adam Slabon
CuWO4 is a photoanode candidate in neutral pH, and manganese-based oxygen evolution reaction electrocatalysts are of high interest due to their low price and low toxicity. Considering the unexplored chemistry of transition-metal carbodiimides/cyanamides for the PEC water oxidation, we investigated MnNCN as an electrocatalyst for CuWO4 under AM 1.5G illumination in potassium phosphate electrolyte (pH 7). Surface functionalization of CuWO4 photoanodes with MnNCN increased the photocurrent from 22 to 30 μA cm-2 at 1...
March 19, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
George A Karpouzas, Joel Estis, Panteha Rezaeian, John Todd, Matthew J Budoff
Objectives: Patients with RA display greater occult coronary atherosclerosis burden and experience higher cardiovascular morbidity and mortality compared with controls. We here explored whether pro-inflammatory cytokines and high-sensitivity cardiac troponin I (hs-cTnI), a biomarker of myocardial injury, correlated with plaque burden and cardiovascular events (CVEs) in RA. Methods: We evaluated 150 patients with 64-slice coronary CT angiography. Coronary artery calcium, number of segments with plaque (segment involvement score), stenotic severity and plaque burden were assessed...
March 14, 2018: Rheumatology
Kathrin Strasser-Weippl, Michaela J Higgins, Judith-Anne W Chapman, James N Ingle, George W Sledge, George T Budd, Matthew J Ellis, Kathleen I Pritchard, Mark J Clemons, Tanja Badovinac-Crnjevic, Lei Han, Karen A Gelmon, Manuela Rabaglio, Catherine Elliott, Lois E Shepherd, Paul E Goss
Background: Celecoxib and low-dose aspirin might decrease risk of breast cancer recurrence. Methods: In the Canadian Cancer Trials Group MA.27, postmenopausal hormone receptor-positive breast cancer patients were randomly assigned (2 × 2) to adjuvant exemestane or anastrozole, and celecoxib or placebo. Low-dose aspirin of 81 mg or less was a stratification factor. Due to concerns about cardiac toxicity, celecoxib use was stopped in December 2004, while stratification by aspirin use was removed through protocol amendment...
March 15, 2018: Journal of the National Cancer Institute
Diana M Sobieraj, Erin R Weeda, Elaine Nguyen, Craig I Coleman, C Michael White, Stephen C Lazarus, Kathryn V Blake, Jason E Lang, William L Baker
Importance: Combined use of inhaled corticosteroids and long-acting β-agonists (LABAs) as the controller and the quick relief therapy termed single maintenance and reliever therapy (SMART) is a potential therapeutic regimen for the management of persistent asthma. Objective: To conduct a systematic review and meta-analysis of the effects of SMART in patients with persistent asthma. Data Sources and Study Selection: The databases of MEDLINE via OVID, EMBASE, the Cochrane Central Register of Controlled Trials, and the Cochrane Database of Systematic Reviews were searched from database inception through August 2016 and updated through November 28, 2017...
March 19, 2018: JAMA: the Journal of the American Medical Association
Barbara Różalska, Beata Sadowska, Aleksandra Budzyńska, Przemysław Bernat, Sylwia Różalska
Due to low efficacy of classic antimicrobial drugs, finding new active preparations attracts much attention. In this study an innovative, cost-effective and environmentally friendly method was applied to produce silver nanoparticles (AgNPs) using filamentous fungi Metarhizium robertsii biomass waste. It was shown that these NPs possess prominent antifungal effects against C. albicans, C. glabrata and C. parapsilosis reference strains. Further detailed studies were performed on C. albicans ATCC 90028. AgNPs kill curve (CFU method and esterase-mediated reduction of fluorescein diacetate); fractionally inhibitory concentration index (FICI) with fluconazole (FLC); effect on fungal cell membrane permeability (propidium iodide (PI) staining), membrane lipids profile (HPLC-MS), yeast morphotypes and intracellular reactive oxygen species level (H2DCFDA probe) were investigated...
2018: PloS One
Guogen Shan, Hua Zhang, Tao Jiang
To compare a new binary diagnostic test with the gold standard, sensitivity and specificity are the two common measurements used to evaluate the new test. When not all the patients are verified by the gold standard due to time, budget, or cost considerations, several approaches have been proposed to compute sample size for such studies under the assumption of missing completely at random. However, the majority of them are based on asymptotic approaches that generally do not guarantee the type I and II error rates, and the remaining approaches use exact binomial distributions in sample size calculation but only the verified samples are used...
March 19, 2018: Journal of Biopharmaceutical Statistics
Veeru Kasivisvanathan, Antti S Rannikko, Marcelo Borghi, Valeria Panebianco, Lance A Mynderse, Markku H Vaarala, Alberto Briganti, Lars Budäus, Giles Hellawell, Richard G Hindley, Monique J Roobol, Scott Eggener, Maneesh Ghei, Arnauld Villers, Franck Bladou, Geert M Villeirs, Jaspal Virdi, Silvan Boxler, Grégoire Robert, Paras B Singh, Wulphert Venderink, Boris A Hadaschik, Alain Ruffion, Jim C Hu, Daniel Margolis, Sébastien Crouzet, Laurence Klotz, Samir S Taneja, Peter Pinto, Inderbir Gill, Clare Allen, Francesco Giganti, Alex Freeman, Stephen Morris, Shonit Punwani, Norman R Williams, Chris Brew-Graves, Jonathan Deeks, Yemisi Takwoingi, Mark Emberton, Caroline M Moore
Background Multiparametric magnetic resonance imaging (MRI), with or without targeted biopsy, is an alternative to standard transrectal ultrasonography-guided biopsy for prostate-cancer detection in men with a raised prostate-specific antigen level who have not undergone biopsy. However, comparative evidence is limited. Methods In a multicenter, randomized, noninferiority trial, we assigned men with a clinical suspicion of prostate cancer who had not undergone biopsy previously to undergo MRI, with or without targeted biopsy, or standard transrectal ultrasonography-guided biopsy...
March 18, 2018: New England Journal of Medicine
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