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https://www.readbyqxmd.com/read/29331531/profiles-of-%C3%AE-amyloid-peptides-and-key-secretases-in-brain-autopsy-samples-differ-with-sex-and-apoe-%C3%AE%C2%B54-status-impact-for-risk-and-progression-of-alzheimer-disease
#1
Jennifer N K Nyarko, Maa O Quartey, Paul R Pennington, Ryan M Heistad, Doris Dea, Judes Poirier, Glen B Baker, Darrell D Mousseau
The APOE ε 4 allele was originally reported to contribute to risk of Alzheimer disease (AD) in women, yet male and female AD patient-derived data are routinely pooled. Histopathological hallmarks of AD include neurofibrillary tangles centered on hyperphosphorylated Tau and plaques composed of the β -amyloid (A β) peptide that is derived by sequential secretase-mediated cleavage of the Amyloid Protein Precursor (APP). We chose to examine profiles of A β (1-40), A β (1-42), and N-truncated (i.e. p3-related) fragments in the plaque-associated fraction of autopsied cortical and corresponding hippocampal samples from donors with a diagnosis of early-onset (EOAD) and late-onset (LOAD) AD...
January 10, 2018: Neuroscience
https://www.readbyqxmd.com/read/29323819/the-use-of-a-statewide-prescription-drug-monitoring-program-by-emergency-department-physicians
#2
Jennifer L Hernandez-Meier, Rachel Muscott, Amy Zosel
BACKGROUND: Little is known about how emergency physicians have used Wisconsin's Prescription Drug Monitoring Program (PDMP). OBJECTIVE: To characterize emergency physician knowledge and utilization of the program and how it modifies practice. METHODS: Online survey data were collected 1 year after program implementation. Descriptive statistics were generated and qualitative responses were grouped by content. RESULTS: Of the 63 respondents, 64...
June 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29317267/spiral-enteroscopy-assisted-ercp-in-bariatric-length-roux-en-y-anatomy-a-large-single-center-series-and-review-of-the-literature-with-video
#3
Mohammad F Ali, Rani Modayil, Krishna C Gurram, Collin Brathwaite, David Friedel, Stavros Stavropoulos
BACKGROUND: Deep enteroscopy-assisted ERCP (DEA-ERCP) in post-bariatric Roux-en-Y (RY) anatomy is challenging. Laparoscopy-assisted ERCP (LA-ERCP) or EUS-directed transgastric ERCP (EDGE) are technically easier and faster, but are more invasive and morbid procedures. Therefore, we have used DEA-ERCP as our first-line approach, reserving EDGE and LA-ERCP for cases in which adjunctive techniques that cannot be performed through an enteroscope are required (eg, EUS-FNA, SO manometry), or DEA-ERCP failures...
January 6, 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29314720/correlation-of-april-with-production-of-inflammatory-cytokines-during-acute-malaria-in-the-brazilian-amazon
#4
Raquel A Pinna, Adriana C Dos Santos, Daiana S Perce-da-Silva, Luciene A da Silva, Rodrigo N R da Silva, Marcelo R Alves, Fátima Santos, Joseli de Oliveira Ferreira, Josué C Lima-Junior, Déa M Villa-Verde, Paula M De Luca, Carla E Carvalho-Pinto, Dalma M Banic
INTRODUCTION: A proliferation-inducing ligand (APRIL) and B cell activation factor (BAFF) are known to play a significant role in the pathogenesis of several diseases, including BAFF in malaria. The aim of this study was to investigate whether APRIL and BAFF plasma concentrations could be part of inflammatory responses associated with P. vivax and P. falciparum malaria in patients from the Brazilian Amazon. METHODS: Blood samples were obtained from P. vivax and P...
January 3, 2018: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/29310284/a-simultaneously-quantitative-method-to-profiling-twenty-endogenous-nucleosides-and-nucleotides-in-cancer-cells-using-uhplc-ms-ms
#5
Bangjie Zhu, Hai Wei, Qingjiang Wang, Fugang Li, Jieyu Dai, Chao Yan, Yu Cheng
Endogenous nucleosides and nucleotides in biosamples are frequently highlighted as the most differential metabolites in recent metabolomics studies. We developed a rapid, sensitive, high-throughput and reliable quantitative method to simultaneously profile 20 endogenous nucleosides and nucleotides in cancer cell lines based on ultra-high performance liquid chromatography-electrospray tandem mass spectrometry (UHPLC- MS/MS) by using a porous graphitic carbon column and basic mobile phase. The results indicated that high pH value of mobile phase containing 0...
March 1, 2018: Talanta
https://www.readbyqxmd.com/read/29307633/voluntary-exercise-training-restores-anticontractile-effect-of-no-in-coronary-arteries-of-adult-rats-with-antenatal-early-postnatal-hypothyroidism
#6
D K Gaynullina, A A Borzykh, S I Sofronova, E K Selivanova, A A Shvetsova, A A Martyanov, I V Kuzmin, O S Tarasova
INTRODUCTION: Our recent study showed that NO-mediated anticontractile effect of endothelium is absent in coronary arteries of adult rats, which suffered from antenatal/early postnatal hypothyroidism. This study tested the hypothesis that exercise training would improve such detrimental consequences of early thyroid deficiency. DESIGN AND METHODS: Wistar dams received propylthiouracil (PTU, 7 ppm) in drinking water during gestation and two weeks postpartum; control dams received tap water...
January 4, 2018: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29307067/benchmarking-the-efficiency-of-the-chilean-water-and-sewerage-companies-a-double-bootstrap-approach
#7
María Molinos-Senante, Guillermo Donoso, Ramon Sala-Garrido, Andrés Villegas
Benchmarking the efficiency of water companies is essential to set water tariffs and to promote their sustainability. In doing so, most of the previous studies have applied conventional data envelopment analysis (DEA) models. However, it is a deterministic method that does not allow to identify environmental factors influencing efficiency scores. To overcome this limitation, this paper evaluates the efficiency of a sample of Chilean water and sewerage companies applying a double-bootstrap DEA model. Results evidenced that the ranking of water and sewerage companies changes notably whether efficiency scores are computed applying conventional or double-bootstrap DEA models...
January 6, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29281893/adherence-over-time-the-course-of-adherence-to-customized-diabetic-insoles-as-objectively-assessed-by-a-temperature-sensor
#8
Dominic Ehrmann, Monika Spengler, Michael Jahn, Dea Niebuhr, Thomas Haak, Bernhard Kulzer, Norbert Hermanns
BACKGROUND: Temperature sensors are an objective way to assess adherence to diabetic footwear. Good adherence is essential for the prevention of diabetic foot problems. Little is known about the long-term course of adherence in patients at risk for diabetic foot problems. METHOD: A temperature sensor was incorporated into the specialized footwear of patients with type 2 diabetes after their first plantar ulceration. Kaplan-Meier curve was used to analyze when patients started to become nonadherent (not wearing the footwear for two straight weeks)...
December 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/29281694/empirical-analysis-of-pig-welfare-levels-and-their-impact-on-pig-breeding-efficiency-based-on-773-pig-farmers-survey-data
#9
Yanling Li, Nanjun Wu, Rong Xu, Liqing Li, Wei Zhou, Xianjun Zhou
Few studies of the pig production efficiency are from the perspective of animal welfare. Therefore, this study conducted a comprehensive evaluation of pig welfare levels based on survey data from 773 pig farmers from 23 counties in the Chinese provinces of Hunan, Zhejiang, Guangdong, Guizhou, and Shanxi. This study used the Delphi method, Analytic Hierarchy Process (AHP), and Data Envelopment Analysis (DEA)-Tobit regression model to analyze farmers' pig production efficiency and its influencing factors. This paper found that most farmers' pig production efficiency is low, and the DEA is invalid...
2017: PloS One
https://www.readbyqxmd.com/read/29281286/shape-and-core-excited-resonances-in-thiophene
#10
Alexandra Loupas, Khrystyna Regeta, Michael Allan, Jimena D Gorfinkiel
We present a comprehensive study of resonance formation in electron collisions with thiophene. Detailed calculations have been performed using the ab initio R-matrix method. Three shape resonances previously described, two of π* character and one σ*, as well as a number of resonances of core-excited or mixed character are identified and characterized. Differential cross sections for electron impact excitation up to 18~eV and for two scattering angles, 90° and 135°, are measured. The measured cross sections provide experimental confirmation for a number of the core-excited resonances...
December 27, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29259871/amplified-cross-linking-efficiency-of-self-assembled-monolayers-through-targeted-dissociative-electron-attachment-for-the-production-of-carbon-nanomembranes
#11
Sascha Koch, Christopher D Kaiser, Paul Penner, Michael Barclay, Lena Frommeyer, Daniel Emmrich, Patrick Stohmann, Tarek Abu-Husein, Andreas Terfort, D Howard Fairbrother, Oddur Ingólfsson, Armin Gölzhäuser
The determination of the negative ion yield of 2'-chloro-1,1'-biphenyl (2-Cl-BP), 2'-bromo-1,1'-biphenyl (2-Br-BP) and 2'-iodo-1,1'-biphenyl (2-I-BP) upon dissociative electron attachment (DEA) at an electron energy of 0 eV revealed cross section values that were more than ten times higher for iodide loss from 2-I-BP than for the other halogenides from the respective biphenyls (BPs). Comparison with dissociative ionization mass spectra shows that the ratio of the efficiency of electron impact ionization induced fragmentation of 2-I-BP, 2-Br-BP, and 2-Cl-BP amounts to approximately 1:0...
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/29239453/a-ph-and-salt-dually-responsive-emulsion-in-the-presence-of-amphiphilic-macromolecules
#12
Guangxin Hu, Hui Yang, Qingfeng Hou, Donghong Guo, Gang Chen, Fanghui Liu, Ting Chen, Xuefeng Shi, Yu Su, Jinben Wang
A pH and salt dually responsive emulsion has been designed on the basis of a novel amphiphilic macromolecule. It was found that the water separation of an oil-in-water emulsion reached up to ∼60% after standing for 10 min at low pH. 2-(Diethylamino)ethyl methacrylate (DEA) residues were found to induce the macromolecules to protonate and to be hydrophilic at pH values between 2 and 6, resulting in dewetting from oil droplet surfaces in water. Besides, the macromolecules form aggregates with different structures at the water/oil interface, depending on the pH value or salt concentration of the emulsion system, enabling the system to be demulsified in response to the pH or salt stimulus...
December 14, 2017: Soft Matter
https://www.readbyqxmd.com/read/29232070/schedules-of-controlled-substances-placement-of-fda-approved-products-of-oral-solutions-containing-dronabinol-delta-9-trans-tetrahydrocannabinol-delta-9-thc-in-schedule-ii-final-rule
#13
(no author information available yet)
This final rule adopts without changes an interim final rule with request for comments published in the Federal Register on March 23, 2017. On July 1, 2016, the U.S. Food and Drug Administration (FDA) approved a new drug application for Syndros, a drug product consisting of dronabinol [(-)-delta-9-trans-tetrahydrocannabinol (delta-9-THC)] oral solution. The Drug Enforcement Administration (DEA) maintains FDA-approved products of oral solutions containing dronabinol in schedule II of the Controlled Substances Act...
November 22, 2017: Federal Register
https://www.readbyqxmd.com/read/29221903/discrete-element-analysis-is-a-valid-method-for-computing-joint-contact-stress-in-the-hip-before-and-after-acetabular-fracture
#14
Kevin C Townsend, Holly D Thomas-Aitken, M James Rudert, Andrew M Kern, Michael C Willey, Donald D Anderson, Jessica E Goetz
Evaluation of abnormalities in joint contact stress that develop after inaccurate reduction of an acetabular fracture may provide a potential means for predicting the risk of developing post-traumatic osteoarthritis. Discrete element analysis (DEA) is a computational technique for calculating intra-articular contact stress distributions in a fraction of the time required to obtain the same information using the more commonly employed finite element analysis technique. The goal of this work was to validate the accuracy of DEA-computed contact stress against physical measurements of contact stress made in cadaveric hips using Tekscan sensors...
November 16, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29220397/desethylamiodarone-a-metabolite-of-amiodarone-induces-apoptosis-on-t24-human-bladder-cancer-cells-via-multiple-pathways
#15
Zita Bognar, Katalin Fekete, Csenge Antus, Eniko Hocsak, Rita Bognar, Antal Tapodi, Arpad Boronkai, Nelli Farkas, Ferenc Gallyas, Balazs Sumegi, Arpad Szanto
Bladder cancer (BC) is a common malignancy of the urinary tract that has a higher frequency in men than in women. Cytostatic resistance and metastasis formation are significant risk factors in BC therapy; therefore, there is great interest in overcoming drug resistance and in initiating research for novel chemotherapeutic approaches. Here, we suggest that desethylamiodarone (DEA)-a metabolite of amiodarone-may have cytostatic potential. DEA activates the collapse of mitochondrial membrane potential (detected by JC-1 fluorescence), and induces cell death in T24 human transitional-cell bladder carcinoma cell line at physiologically achievable concentrations...
2017: PloS One
https://www.readbyqxmd.com/read/29207377/polymorphisms-in-nonamelogenin-enamel-matrix-genes-are-associated-with-dental-fluorosis
#16
Erika Calvano Küchler, Carolina Dea Bruzamolin, Marjorie Ayumi Omori, Marcelo C Costa, Leonardo Santos Antunes, Giovana Daniela Pecharki, Paula Cristina Trevilatto, Alexandre Rezende Vieira, João Armando Brancher
The aim of this study was to evaluate whether genetic polymorphisms in AMELX, AMBN, ENAM, TFIP11, and TUFT1 genes are associated with dental fluorosis (DF). A total of 1,017 children from 2 Brazilian cohorts were evaluated. These populations lived in cities with fluoridation of public water supplies. DF was assessed in erupted permanent teeth using the modified Dean index. The polymorphisms rs946252, rs12640848, rs4694075, rs5997096, and rs4970957 were analyzed by real-time PCR from genomic DNA. Associations between DF, genotype, and allele distribution were evaluated using the χ2 test, with an alpha of 5%...
December 6, 2017: Caries Research
https://www.readbyqxmd.com/read/29206657/dual-bronchodilator-therapy-for-chronic-obstructive-pulmonary-disease-evidence-for-the-efficacy-and-safety-of-fixed-dose-combination-treatments-in-the-setting-of-recent-guideline-updates
#17
Steven D Deas, Nikhil Huprikar
PURPOSE OF REVIEW: Recent updates to the GOLD guidelines emphasize the use of combination LABA and LAMA bronchodilators for patients with chronic obstructive pulmonary disease with persistent dyspnea despite monotherapy or frequent exacerbations despite LAMA monotherapy. There are several commercially available LABA/LAMA fixed dose combination inhalers, which are likely to become the principle therapy for many patients with COPD. RECENT FINDINGS: In the last 4 years, there have been a number of large clinical trials evaluating the efficacy and safety of combined LAMA and LABA bronchodilators...
December 4, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29196273/optimising-the-in-vitro-and-in-vivo-performance-of-oral-cocrystal-formulations-via-spray-coating
#18
Dolores R Serrano, David Walsh, Peter O'Connell, Naila A Mugheirbi, Zelalem Ayenew Worku, Francisco Bolas-Fernandez, Carolina Galiana, Maria Auxiliadora Dea-Ayuela, Anne Marie Healy
Engineering of pharmaceutical cocrystals is an advantageous alternative to salt formation for improving the aqueous solubility of hydrophobic drugs. Although, spray drying is a well-established scale-up technique in the production of cocrystals, several issues can arise such as sublimation or stickiness due to low glass transition temperatures of some organic molecules, making the process very challenging. Even though, fluidised bed spray coating has been successfully employed in the production of amorphous drug-coated particles, to the best of our knowledge, it has never been employed in the production of cocrystals...
November 28, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/29191699/in-vitro-activity-of-new-n-benzyl-1h-benzimidazol-2-amine-derivatives-against-cutaneous-mucocutaneous-and-visceral-leishmania-species
#19
Rocío Nieto-Meneses, Rafael Castillo, Alicia Hernández-Campos, Armando Maldonado-Rangel, Jeferson B Mateus-Ruiz, Pedro Josué Trejo-Soto, Benjamín Nogueda-Torres, Ma Auxiliadora Dea-Ayuela, Francisco Bolás-Fernández, Carlos Méndez-Cuesta, Lilián Yépez-Mulia
The identification of specific therapeutic targets and the development of new drugs against leishmaniasis are urgently needed, since chemotherapy currently available for its treatment has several problems including many adverse side effects. In an effort to develop new antileishmanial drugs, in the present study a series of 28 N-benzyl-1H-benzimidazol-2-amine derivatives was synthesized and evaluated in vitro against Leishmania mexicana promastigotes. Compounds 7 and 8 with the highest antileishmanial activity (micromolar) and lower cytotoxicity than miltefosine and amphotericin B were selected to evaluate their activity against L...
November 27, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/29190268/synthetic-cannabinoid-and-mitragynine-exposure-of-law-enforcement-agents-during-the-raid-of-an-illegal-laboratory-nevada-2014
#20
Loren Tapp, Jessica G Ramsey, Anita Wen, Roy Gerona
Synthetic cannabinoids (SCs), commonly known by the street name "Spice," are designer drugs of abuse that mimic the psychoactive effects of marijuana. Intentional SC use has resulted in multiple toxicities (1,2), but little is known about occupational SC exposure. After a federal agency's law enforcement personnel in Nevada reported irritability and feeling "high" after raiding illegal SC laboratories and processing seized SCs, a request for a health hazard evaluation was made by the agency to CDC's National Institute for Occupational Safety and Health (NIOSH) in 2014 to evaluate agents' occupational SC exposures...
December 1, 2017: MMWR. Morbidity and Mortality Weekly Report
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