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https://www.readbyqxmd.com/read/28655206/deficient-emotion-processing-is-associated-with-everyday-functioning-capacity-in-hiv-associated-neurocognitive-disorder
#1
Jonathan M Grabyan, Erin E Morgan, Marizela V Cameron, Javier Villalobos, Igor Grant, Steven Paul Woods
Objective: Emotion processing has received little research focus in HIV, but emerging evidence suggests that abilities such as facial affect discrimination may be features of HIV-associated neurocognitive disorder (HAND). The present study hypothesized that individuals with HAND would evidence an emotion processing deficit relative to cognitively unimpaired individuals with HIV and seronegative comparison participants on a task assessing these abilities. Moreover, it was expected that this deficit would be significantly associated with social aspects of everyday functioning...
June 26, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28655190/right-ventricular-function-during-exercise-in-children-after-heart-transplantation
#2
B Cifra, C T Morgan, A Dragulescu, V C Guerra, C Slorach, M K Friedberg, C Manlhiot, B W McCrindle, A I Dipchand, L Mertens
Aims: Right ventricular (RV) dysfunction is a common problem after heart transplant (HTx). In this study, we used semi-supine bicycle ergometry (SSBE) stress echocardiography to evaluate RV systolic and diastolic reserve in paediatric HTx recipients. Methods and results: Thirty-nine pediatric HTx recipients and 23 controls underwent stepwise SSBE stress echocardiography. Colour tissue doppler imaging (TDI) peak systolic (s') and peak diastolic (e') velocities, myocardial acceleration during isovolumic contraction (IVA), and RV free wall longitudinal strain were measured at incremental heart rates (HR)...
June 23, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28655177/stability-indicating-tlc-densitometric-assay-for-methyltestosterone-and-quantum-chemical-calculations
#3
Syed Ghulam Musharraf, Qamar Ul Arfeen, Faraz Ul Haq, Aliya Khatoon, Rahat Azher Ali
Methyltestosterone is a synthetic testosterone derivative commonly used for the treatment of testosterone deficiency in males and one the anabolic steroids whose use is banned by World Anti-Doping Agency (WADA). This study presents a simple, cost-effective and rapid stability-indicating assay for densitometric quantification of methyltestosterone in pharmaceutical formulation. The developed method employed pre-coated TLC plates with mobile phase hexane:acetone (6.5:3.5 v/v). Limit of detection and limit of quantitation were found to be 2...
June 26, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28655176/a-systematic-review-and-meta-analysis-of-the-effectiveness-of-nudging-to-increase-fruit-and-vegetable-choice
#4
Valérie J V Broers, Céline De Breucker, Stephan Van den Broucke, Olivier Luminet
Background: Nudging refers to interventions that organize the choice architecture in order to alter people's behaviour in a predictable way without forbidding any options or significantly changing their economic incentives. As a strategy to encourage healthy behaviour, nudging can serve as a complement to health education. However, the empirical evidence regarding the effectiveness of nudging as a way to influence food choice remains contradictory. To address this issue, a systematic review and meta-analysis was conducted to test the effects of nudging to encourage people to select more fruit and vegetables...
June 25, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28655155/evolution-of-cytochrome-c-oxidase-in-hypoxia-tolerant-sculpins-cottidae-actinopterygii
#5
Gigi Y Lau, Milica Mandic, Jeffrey G Richards
Vertebrate hypoxia tolerance can emerge from modifications to the oxygen (O2) transport cascade, but whether there is adaptive variation to O2 binding at the terminus of this cascade, mitochondrial cytochrome c oxidase (COX), is not known. In order to address the hypothesis that hypoxia tolerance is associated with enhanced O2 binding by mitochondria we undertook a comparative analysis of COX O2 kinetics across species of intertidal sculpins (Cottidae, Actinopterygii) that vary in hypoxia tolerance. Our analysis revealed a significant relationship between hypoxia tolerance (critical O2 tension of O2 consumption rate; Pcrit), mitochondrial O2 binding affinity (O2 tension at which mitochondrial respiration was half maximal; P50), and COX O2-binding affinity (apparent Michaelis-Menten constant for O2 binding to COX; Km,app O2)...
June 24, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28655149/neuromodulation-of-axon-terminals
#6
Darpan Chakraborty, Dennis Q Truong, Marom Bikson, Hanoch Kaphzan
Understanding which cellular compartments are influenced during neuromodulation underpins any rational effort to explain and optimize outcomes. Axon terminals have long been speculated to be sensitive to polarization, but experimentally informed models for CNS stimulation are lacking. We conducted simultaneous intracellular recording from the neuron soma and axon terminal (blebs) during extracellular stimulation with weak sustained (DC) uniform electric fields in mouse cortical slices. Use of weak direct current stimulation (DCS) allowed isolation and quantification of changes in axon terminal biophysics, relevant to both suprathreshold (e...
June 24, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28655120/a-rare-benign-tumor-of-breast-masquerading-on-fine-needle-aspiration-cytology-a%C3%A2-case%C3%A2-report
#7
Banushree Cs, Ramachandra V Bhat, Sri Vengadesh Gopal
Pleomorphic adenoma is a common tumor encountered in major salivary gland and very rarely seen in breast. This matrix producing tumor can be confused with fibroadenoma, phyllodes tumor and metaplastic carcinoma on fine needle aspiration cytology(FNAC). Pre-operative diagnosis of pleomorphic adenoma helps in preventing surgical over or under treatment of the disease. We present an extremely rare case of pleomorphic adenoma of breast diagnosed on FNAC with histopathological confirmation.
June 23, 2017: Breast Disease
https://www.readbyqxmd.com/read/28655111/capacitive-deionization-of-arsenic-contaminated-groundwater-in-a-single-pass-mode
#8
Chen-Shiuan Fan, Sofia Ya Hsuan Liou, Chia-Hung Hou
A single-pass-mode capacitive deionization (CDI) reactor was used to remove arsenic from groundwater in the presence of multiple ions. The CDI reactor involved an applied voltage of 1.2 V and six cell pairs of activated carbon electrodes, each of which was 20 × 30 cm(2). The results indicate that this method achieved an effluent arsenic concentration of 0.03 mg L(-1), which is lower than the arsenic concentration standard for drinking water and irrigation sources in Taiwan, during the charging stage...
June 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28655055/deep-convolutional-neural-networks-for-classifying-head-and-neck-cancer-using-hyperspectral-imaging
#9
Martin Halicek, Guolan Lu, James V Little, Xu Wang, Mihir Patel, Christopher C Griffith, Mark W El-Deiry, Amy Y Chen, Baowei Fei
No abstract text is available yet for this article.
June 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28655025/effect-of-buprenorphine-weekly-depot-cam2038-and-hydromorphone-blockade-in-individuals-with-opioid-use-disorder-a-randomized-clinical-trial
#10
Sharon L Walsh, Sandra D Comer, Michelle R Lofwall, Bradley Vince, Naama Levy-Cooperman, Debra Kelsh, Marion A Coe, Jermaine D Jones, Paul A Nuzzo, Fredrik Tiberg, Behshad Sheldon, Sonnie Kim
Importance: Buprenorphine is an efficacious, widely used treatment for opioid use disorder (OUD). Daily oral transmucosal formulations can be associated with misuse, diversion, and nonadherence; these limitations may be obviated by a sustained release formulation. Objective: To evaluate the ability of a novel, weekly, subcutaneous buprenorphine depot formulation, CAM2038, to block euphorigenic opioid effects and suppress opioid withdrawal in non-treatment-seeking individuals with OUD...
June 22, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28654968/association-of-electrochemical-therapy-with-optical-mechanical-and-acoustic-impedance-properties-of-porcine-skin
#11
Wesley J Moy, Erica Su, Jason J Chen, Connie Oh, Joe C Jing, Yueqiao Qu, Youmin He, Zhongping Chen, Brian J F Wong
Importance: The classic management of burn scars and other injuries to the skin has largely relied on soft-tissue transfer to resurface damaged tissue with local tissue transfer or skin graft placement. In situ generation of electrochemical reactions using needle electrodes and an application of current may be a new approach to treat scars and skin. Objective: To examine the changes in optical, mechanical, and acoustic impedance properties in porcine skin after electrochemical therapy...
June 22, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28654935/prenatally-diagnosed-trisomy-21
#12
Elizabeth V Schulz
No abstract text is available yet for this article.
June 26, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28654920/greater-real-life-diagnostic-efficacy-of-allergen-molecule-based-diagnosis-for-prescription-of-immunotherapy-in-an-area-with-multiple-pollen-exposure
#13
Ulbosin Saltabayeva, Viktoriya Garib, Marina Morenko, Rafail Rosenson, Zhanat Ispayeva, Madina Gatauova, Loreta Zulus, Aleksandr Karaulov, Felix Gastager, Rudolf Valenta
BACKGROUND: Allergen molecule-based diagnosis has been suggested to facilitate the identification of disease-causing allergen sources and the prescription of allergen-specific immunotherapy (AIT). The aim of the current study was to compare allergen molecule-based IgE serology with allergen extract-based skin testing for the identification of the disease-causing allergen sources. The study was conducted in an area where patients are exposed to pollen from multiple sources (trees, grasses, and weeds) at the same time to compare the diagnostic efficiency of the 2 forms of diagnosis...
June 28, 2017: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/28654829/fructose-intake-exacerbates-the-contractile-response-elicited-by-norepinephrine-in-mesenteric-vascular-bed-of-rats-via-increased-endothelial-prostanoids
#14
Glauciene J Sousa, Phablo Wendell C Oliveira, Breno V Nogueira, Antônio F Melo, Thaís de Oliveira Faria, Eduardo Frizera Meira, José G Mill, Nazaré S Bissoli, Marcelo P Baldo
Chronic fructose intake induces major cardiovascular and metabolic disturbances and is associated with the development of hypertension due to changes in vascular function. We hypothesized that high fructose intake for 6 weeks would cause metabolic syndrome and lead to initial vascular dysfunction. Male Wistar rats were assigned to receive fructose (FRU, 10%) or drinking water (CON) for 6 weeks. Systolic blood pressure was evaluated by tail plethysmography. Fasting glucose, insulin and glucose tolerance were measured at the end of the follow-up...
June 20, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28654827/characterisation-of-the-medipix3-detector-for-60-and-80kev-electrons
#15
J A Mir, R Clough, R MacInnes, C Gough, R Plackett, I Shipsey, H Sawada, I MacLaren, R Ballabriga, D Maneuski, V O'Shea, D McGrouther, A I Kirkland
In this paper we report quantitative measurements of the imaging performance for the current generation of hybrid pixel detector, Medipix3, used as a direct electron detector. We have measured the modulation transfer function and detective quantum efficiency at beam energies of 60 and 80keV. In single pixel mode, energy threshold values can be chosen to maximize either the modulation transfer function or the detective quantum efficiency, obtaining values near to, or exceeding those for a theoretical detector with square pixels...
June 20, 2017: Ultramicroscopy
https://www.readbyqxmd.com/read/28654818/high-throughput-screening-of-myxoid-liposarcoma-cell-lines-survivin-is-essential-for-tumor-growth
#16
Marieke A de Graaff, Shruti Malu, Irma Guardiola, Alwine B Kruisselbrink, Yvonne de Jong, Willem E Corver, H Gelderblom, Patrick Hwu, Torsten O Nielsen, Alexander J Lazar, Neeta Somaiah, Judith V M G Bovée
Myxoid liposarcoma (MLS) is a soft tissue sarcoma characterized by a recurrent t(12;16) translocation. Although tumors are initially radio- and chemosensitive, the management of inoperable or metastatic MLS can be challenging. Therefore, our aim was to identify novel targets for systemic therapy. We performed an in vitro high-throughput drug screen using three MLS cell lines (402091, 1765092, DL-221), which were treated with 273 different drugs at four different concentrations. Cell lines and tissue microarrays were used for validation...
June 24, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28654798/the-impact-of-gut-microbiota-on-kidney-function-and-pathogenesis
#17
REVIEW
Fariba Mahmoodpoor, Yalda Rahbar Saadat, Abolfazl Barzegari, Mohammadreza Ardalan, Sepideh V Zununi Vahed
Chronic kidney diseases (CKDs) are a global health problem. Besides diverse leading reasons in initiation and progression of CKDs, it is evident that they might largely originate from changes in the gut microbial community (microbiota). Mounting evidence indicates that a bidirectional relationship exists between host and microbiome in humans and animals with CKDs. Changes in the microbiota composition and structure (dysbiosis) produce excessive amounts of uremic toxins (e.g. indoxyl sulfate, p-cresyl sulfate and trimethylamine-N-oxide) but less reno-protective metabolites that are implicated in oxidative stress, uremia, inflammation, deterioration of kidney function, kidney diseases progression, a higher prevalence of cardiovascular risk, and mortality in patients with CKD...
June 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28654788/highly-selective-and-efficient-removal-of-arsenic-v-chromium-vi-and-selenium-vi-oxyanions-by-layered-double-hydroxide-intercalated-with-zwitterionic-glycine
#18
Hamid Asiabi, Yadollah Yamini, Maryam Shamsayei
In this study, a new strategy for highly selective and extremely efficient removal of toxic oxyanions (Cr(VI), Se(VI), and As(V)) from aqueous solutions using zwitterionic glycine intercalated layered double hydroxide (Gly-LDH) was reported. Hence, to investigate the effect of zwitterionic glycine on the adsorption capacity, selectivity factor and adsorption mechanism of LDHs, two NiAl LDHs intercalated with different inter-layer anions, including NO3(-) and glycine, were synthesized. The obtained results show that the adsorption capacity and selectivity factor of oxyanions through ion exchange mechanism in NO3-LDH is lower than Gly-LDH...
June 21, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28654782/revisiting-blood-brain-barrier-a-chromatographic-approach
#19
Xavier Subirats, Laura Muñoz-Pascual, Michael H Abraham, Martí Rosés
Drugs designed to reach a pharmacological CNS target must be effectively transported across the blood-brain barrier (BBB), a thin monolayer of endothelial cells tightly attached together between the blood and the brain parenchyma. Because of the lipidic nature of the BBB, several physicochemical partition models have been studied as surrogates for the passive permeation of potential drug candidates across the BBB (octanol-water, alkane-water, PAMPA...). In the last years, biopartition chromatography is gaining importance as a noncellular system for the estimation of biological properties in early stages of drug development...
June 17, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28654780/development-and-validation-of-an-icp-ms-method-for-the-determination-of-elemental-impurities-in-tp-6076-active-pharmaceutical-ingredient-api-according-to-usp-%C3%A2-232%C3%A2-%C2%AA-%C3%A2-233%C3%A2-%C2%AA
#20
Osama Chahrour, John Malone, Mark Collins, Vrushali Salmon, Catherine Greenan, Amy Bombardier, Zhongze Ma, Nick Dunwoody
The new guidelines of the United States pharmacopeia (USP), European pharmacopeia (EP) and international conference on harmonization (ICH) regulating elemental impurities limits in pharmaceuticals signify the end of unspecific analysis of metals as outlined in USP 〈231〉. The new guidelines specify both daily doses and concentration/limits of elemental impurities in pharmaceutical final products, active pharmaceutical ingredients (API) and excipients. In chapter USP 〈233〉 method implementation, validation and quality control during the analytical process are described...
June 20, 2017: Journal of Pharmaceutical and Biomedical Analysis
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