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https://www.readbyqxmd.com/read/28533317/cardiovascular-toxicity-of-illicit-anabolic-androgenic-steroid-use
#1
Aaron L Baggish, Rory B Weiner, Gen Kanayama, James I Hudson, Michael T Lu, Udo Hoffmann, Harrison G Pope
BACKGROUND: Millions of individuals have used illicit anabolic-androgenic steroids (AAS), but the long-term cardiovascular associations of these drugs remain incompletely understood. METHODS: Using a cross-sectional cohort design, we recruited 140 experienced male weightlifters 34 to 54 years of age, comprising 86 men reporting ≥2 years of cumulative lifetime AAS use and 54 nonusing men. Using transthoracic echocardiography and coronary computed tomography angiography, we assessed 3 primary outcome measures: left ventricular (LV) systolic function (left ventricular ejection fraction), LV diastolic function (early relaxation velocity), and coronary atherosclerosis (coronary artery plaque volume)...
May 23, 2017: Circulation
https://www.readbyqxmd.com/read/28532259/ethnic-differences-in-response-to-directive-vs-non-directive-brief-intervention-for-subsyndromal-depression
#2
David Pan, Stanley J Huey, Lara H Heflin
OBJECTIVE: Analog research suggests that directive interventions might increase treatment engagement for non-symptomatic Asian American (AA) students; however, no studies have assessed whether directiveness improves therapy processes or clinical outcomes for AAs with mental health symptoms. This study tested the comparative efficacy of brief directive vs. non-directive intervention for AAs and European Americans (EAs) with subsyndromal depression. METHOD: Participants were randomly assigned directive, non-directive, or cultural values interview conditions, and assessed three times over six months...
May 22, 2017: Psychotherapy Research: Journal of the Society for Psychotherapy Research
https://www.readbyqxmd.com/read/28529891/biomonitorization-of-iron-accumulation-in-the-substantia-nigra-from-lewy-body-disease-patients
#3
Belén Fernández, Isidro Ferrer, Fernando Gil, Sabine Hilfiker
Iron levels in the healthy human brain are known to be high in certain areas such as the substantia nigra (SN), and increase further with age. In addition, there is some evidence for a further increase in iron load in the SN of Parkinson's disease (PD) patients as compared to controls, which correlates with motor disability. Here, we have analyzed total iron levels in cells as well as mouse and human brain samples by atomic absorption spectroscopy (AAS). Our data indicate that iron load is more pronounced in cells with dopaminergic features...
2017: Toxicology Reports
https://www.readbyqxmd.com/read/28529779/crystal-structures-of-di-bromido-n-pyridin-2-yl-%C3%AE%C2%BAn-methyl-idene-picolinohydrazide-%C3%AE%C2%BA-2-n-o-cadmium-methanol-monosolvate-and-di-iodido-n-pyridin-2-yl-%C3%AE%C2%BAn-methyl-idene-picolinohydrazide-%C3%AE%C2%BA-2-n-o-cadmium
#4
Ali Akbar Khandar, Farhad Akbari Afkhami, Harald Krautscheid, Kenneth Aase Kristoffersen, Zeliha Atioğlu, Mehmet Akkurt, Carl Henrik Görbitz
The title compounds, [CdBr2(C12H10N4O)]·CH3OH, (I), and [CdI2(C12H10N4O)], (II), are cadmium bromide and cadmium iodide complexes of the ligand (E)-N'-(pyridin-2-yl-methyl-ene)picolinohydrazide. Complex (I) crystallizes as the methanol monosolvate. In both compounds, the Cd(2+) cation is ligated by one O atom and two N atoms of the tridentate ligand, and by two bromide anions forming a Br2N2O penta-coordination sphere for (I), and by two iodide anions forming an I2N2O penta-coordination sphere for (II), both with a distorted square-pyramidal geometry...
May 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28527354/incorporation-of-silver-nanoparticles-into-magnetron-sputtered-calcium-phosphate-layers-on-titanium-as-an-antibacterial-coating
#5
Maria A Surmeneva, Anna A Sharonova, Svitlana Chernousova, Oleg Prymak, Kateryna Loza, Mikhail S Tkachev, Ivan A Shulepov, Matthias Epple, Roman A Surmenev
A three-layer system of nanocrystalline hydroxyapatite (first layer; 1000nm thick), silver nanoparticles (second layer; 1.5μg Ag cm(-2)) and calcium phosphate (third layer, either 150 or 1000nm thick) on titanium was prepared by a combination of electrophoretic deposition of silver nanoparticles and the deposition of calcium phosphate by radio frequency magnetron sputtering. Scanning electron microscopy showed that the silver nanoparticles were evenly distributed over the surface. The adhesion of multilayered coating on the substrate was evaluated using the scratch test method...
May 9, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28526253/racial-ethnic-differences-in-sleep-quality-among-older-adults-with-osteoarthritis
#6
Patricia A Parmelee, Brian S Cox, Jason A DeCaro, Francis J Keefe, Dylan M Smith
OBJECTIVE: To examine racial/ethnic differences in sleep quality and the pain-sleep association among older adults with osteoarthritis of the knee. DESIGN: Baseline interview followed by a 7-day microlongitudinal study using accelerometry and self-reports. SETTING: Participants were community residents in western Alabama and Long Island, NY. PARTICIPANTS: Ninety-six African Americans (AAs) and 128 non-Hispanic whites (NHWs) with physician-diagnosed knee osteoarthritis, recruited from a variety of clinical and community settings...
June 2017: Sleep Health
https://www.readbyqxmd.com/read/28525484/a-retrospective-analysis-of-subaxial-subluxation-after-atlanto-axial-arthrodesis-in-patients-with-rheumatoid-arthritis-based-on-annual-radiographs-obtained-for-5-years
#7
Haku Iizuka, Yoichi Iizuka, Tokue Mieda, Ryoichi Kobayashi, Masahiro Nishinome, Tsuyoshi Ara, Yasunori Sorimachi, Takashi Nakajima, Kenji Takagishi
STUDY DESIGN: Retrospective study. OBJECTIVE: The purpose of this study was to investigate the incidence of subaxial subluxation (SAS) after atlanto-axial arthrodesis in rheumatoid arthritis (RA) patients using annual radiographs obtained for 5 years and clarify the characteristics of SAS after surgery. SUMMARY OF BACKGROUND DATA: Rheumatoid SAS has been reported to occur after atlanto-axial arthrodesis. Many authors have noted that excessive correction of the atlanto-axial angle (AAA) results in a decrease in subaxial lordosis, thereby inducing SAS; therefore, we paid special attention to acquiring a suitable AAA in patients with atlanto-axial arthrodesis...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28521554/social-factors-predictive-of-social-integration-for-adults-with-brain-injury
#8
Elisabeth Batchos, Amanda Easton, Christopher Haak, Nicole Ditchman
INTRODUCTION: Individuals with acquired brain injury (ABI) may not only struggle with physical and cognitive impairments, but may also face challenges reintegrating into the community socially. Research has demonstrated that following ABI, individuals' social networks tend to dwindle, support may decline, and isolation increases. This study examined factors impacting social integration in a community-based sample of 102 individuals with ABI. METHODS: Potential predictors included emotional support, instrumental support, problem solving confidence, and approach-avoidance style (AAS) of problem solving, while controlling for age, gender, education, and time since injury...
May 18, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28515161/suboptimal-maternal-iodine-intake-is-associated-with-impaired-child-neurodevelopment-at-3-years-of-age-in-the-norwegian-mother-and-child-cohort-study
#9
Marianne H Abel, Ida H Caspersen, Helle Margrete Meltzer, Margaretha Haugen, Ragnhild E Brandlistuen, Heidi Aase, Jan Alexander, Liv E Torheim, Anne-Lise Brantsæter
Background: Severe iodine deficiency in pregnancy has major effects on child neurodevelopment, but less is known about the potential consequences of mild-to-moderate deficiency and iodine supplement use.Objective: We explored the associations between maternal iodine intake and child neurodevelopment at 3 y of age and the potential impact of maternal intake of iodine from supplements on the same outcomes.Methods: This population-based prospective observational study included 48,297 mother-child pairs recruited during pregnancy from 2002 to 2008...
May 17, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28513876/the-inter-play-between-facilitation-and-context-in-the-promoting-action-on-research-implementation-in-health-services-framework-a-qualitative-exploratory-implementation-study-embedded-in-a-cluster-randomised-controlled-trial-to-reduce-restraint-in-nursing-homes
#10
Tone Elin Mekki, Christine Øye, Bodil Margrete Kristensen, Helen Dahl, Astrid Haaland, Kristin Aas Nordin, Marta R Strandos, Toril Marie Terum, Arnt Egil Ydstebø, Brendan Mccormack
AIM: To explore the inter-play between external facilitation and nursing home contexts relative to intervention outcomes. BACKGROUND: The Promoting Action on Research Implementation in Health Services framework is frequently used to theoretically inform implementation and research in nursing and recent reviews indicate high face validity for health services. However, the inter-play and relationship between framework sub- elements of evidence, context and facilitation and the prospective utility in non-English speaking contexts warrant further illumination...
May 17, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28512775/a-porphyrin-based-fluorescence-method-for-zinc-determination-in-commercial-propolis-extracts-without-sample-pretreatment
#11
Gastón Darío Pierini, Victor Hugo A Pinto, Clarissa G C Maia, Wallace D Fragoso, Julio S Reboucas, María Eugenia Centurión, Marcelo Fabián Pistonesi, María Susana Di Nezio
The quantification of zinc in over-the-counter drugs as commercial propolis extracts by molecular fluorescence technique using meso-tetrakis(4-carboxyphenyl)porphyrin (H2 TCPP(4) ) was developed for the first time. The calibration curve is linear from 6.60 to 100 nmol L(-1) of Zn(2+) . The detection and quantification limits were 6.22 nmol L(-1) and 19.0 nmol L(-1) , respectively. The reproducibility and repeatability calculated as the percentage variation of slopes of seven calibration curves were 6.75% and 4...
May 16, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28508285/flame-atmospheric-pressure-chemical-ionization-coupled-with-negative-electrospray-ionization-mass-spectrometry-for-ion-molecule-reactions
#12
Sy-Chyi Cheng, Suhail Muzaffar Bhat, Jentaie Shiea
Flame atmospheric pressure chemical ionization (FAPCI) combined with negative electrospray ionization (ESI) mass spectrometry was developed to detect the ion/molecule reactions (IMRs) products between nitric acid (HNO3) and negatively charged amino acid, angiotensin I (AI) and angiotensin II (AII), and insulin ions. Nitrate and HNO3-nitrate ions were detected in the oxyacetylene flame, suggesting that a large quantity of nitric acid (HNO3) was produced in the flame. The HNO3 and negatively charged analyte ions produced by a negative ESI source were delivered into each arm of a Y-shaped stainless steel tube where they merged and reacted...
May 15, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28506255/retrospective-study-of-nonmucinous-appendiceal-adenocarcinomas-role-of-systemic-chemotherapy-and-cytoreductive-surgery
#13
Marc Uemura, Wei Qiao, Keith Fournier, Jeffrey Morris, Paul Mansfield, Cathy Eng, Richard E Royal, Robert A Wolff, Kanwal Raghav, Gary N Mann, Michael J Overman
BACKGROUND: Mucinous appendiceal adenocarcinomas (AAs) are the most common histological subset of AAs. Nonmucinous AAs have been infrequently studied. We performed a single-center retrospective study to investigate this histological subtype. METHODS: We reviewed 172 patient records with nonmucinous AAs treated at MD Anderson Cancer Center from Jan, 1990 to Jun, 2015 and recorded patient demographics, tumor characteristics, treatment, and outcomes. Response rate (RR) was assessed semi-quantitatively (response/no response) according to the treating physician's findings...
May 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28505561/class-enzyme-based-motors-for-on-the-fly-enantiomer-analysis-of-amino-acids
#14
Laura García-Carmona, María Moreno-Guzmán, María Cristina González, Alberto Escarpa
Here, two class-enzyme motors are properly designed allowing the rapid dispersion of the class-enzyme D-amino acid oxidase (DAO) and L-amino acid oxidase (LAO) for selective "on the fly" biodetection of D and L-amino acids (AAs), respectively. The efficient movement together with the continuous release of fresh class-enzyme leads to a greatly accelerated enzymatic reaction processes without the need of external stirring or chemical and physical attachment of the enzyme. Ultra-fast detection (<2min) and accurate quantifications of L-phenylalanine (L-Phe) in plasma and whole-blood newborns samples diagnosed with Phenylketonuria and total D-AAs in Vibrio cholera cultures are pioneer illustrated as relevant examples of each enantiomer determination...
May 6, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28501151/micro-sampling-method-based-on-high-resolution-continuum-source-graphite-furnace-atomic-absorption-spectrometry-for-calcium-determination-in-blood-and-mitochondrial-suspensions
#15
Beatriz Gómez-Nieto, Mª Jesús Gismera, Mª Teresa Sevilla, Jorgina Satrústegui, Jesús R Procopio
A micro-sampling and straightforward method based on high resolution continuum source atomic absorption spectrometry (HR-CS AAS) was developed to determine extracellular and intracellular Ca in samples of interest in clinical and biomedical analysis. Solid sampling platforms were used to introduce the micro-samples into the graphite furnace atomizer. The secondary absorption line for Ca, located at 239.856nm, was selected to carry out the measurements. Experimental parameters such as pyrolysis and atomization temperatures and the amount of sample introduced for the measurements were optimized...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28500659/insulin-sensitivity-in-relation-to-fat-distribution-and-plasma-adipocytokines-among-abusers-of-anabolic-androgenic-steroids
#16
Jon Jarløv Rasmussen, Morten Schou, Christian Selmer, Marie Louise Johansen, Finn Gustafsson, Jan Frystyk, Flemming Dela, Jens Faber, Caroline Kistorp
OBJECTIVE: Abuse of anabolic androgenic steroids (AAS) is prevalent among young men, but information regarding effects on insulin sensitivity and fat distribution is limited. The objective was to investigate insulin sensitivity in relation to fat distribution and adipocytokines among current and former AAS abusers compared with controls. DESIGN: Cross-sectional study among men involved in recreational strength training. Current and former AAS abusers (n=37 and n=33) and controls (n=30) volunteered from the community...
May 13, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28495867/sex-differences-in-the-utilization-of-essential-and-non-essential-amino-acids-in-a-lepidoptera
#17
Eran Levin, Marshall D McCue, Goggy Davidowitz
The different reproductive strategies of males and females underlie differences in behavior that may also lead to differences in nutrient use between the two sexes. We study sex differences in the utilization of two essential amino acids (EAAs) and one non-essential amino-acid (NEAA) by the Carolina sphinx moth (Manduca sexta). On day one post-eclosion from the pupae, adult male moths oxidized greater amounts of larval-derived AAs than females, and more nectar derived AAs after feeding. After four days of starvation the opposite pattern was observed; adult females oxidized more larval-derived AAs than males...
May 11, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28494204/bio-and-toxic-elements-in-mushrooms-from-the-city-of-ume%C3%A3-and-outskirts-sweden
#18
Małgorzata Mędyk, Małgorzata Grembecka, Justyna Brzezicha-Cirocka, Jerzy Falandysz
Edible mushrooms (Albatrellus ovinus, Boletus edulis, Clitocybe odora, Gomphidius glutinosus, Leccinum scabrum, Leccinum versipelle, Lycoperdon perlatum, Suillus bovinus, Suillus luteus, and Xerocomus subtomentosus) collected from unpolluted areas of the city of Umeå and its outskirts in the northern part of Sweden were examined for contents of toxic metallic elements (Cd, Pb, and Ag) and essential macro- and microelements (K, Na, Ca, Mg, Cu, Fe, Mn, and Zn) using a validated method and a final measurement by flame atomic absorption spectroscopy (F-AAS)...
May 11, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28492953/muscle-dysmorphia-detection-of-the-use-abuse-of-anabolic-adrogenic-steroids-in-a-spanish-sample
#19
Irene González-Martí, Juan Gregorio Fernández-Bustos, Onofre Ricardo Contreras Jordán, Marina Sokolova
Debido a una distorsión en la imagen corporal, las personas que padecen Dismorfia Muscular se perciben menos musculosas de lo que son en realidad. Con el fin de aumentar su musculatura, algunas de estas personas hacen uso de hormonas cuya función principal es la del aumento del tamaño muscular. Por lo que el objetivo de este estudio es conocer la prevalencia del uso de hormonas en personas afectadas por Dismorfia Muscular. 562 hombres y 172 mujeres fisicoculturistas y levantadores de pesas, a los que se le administraron diferentes cuestionarios para conocer, primero si padecían el trastorno, y después en qué porcentaje usaban hormonas la muestra afectada...
April 12, 2017: Adicciones
https://www.readbyqxmd.com/read/28483679/sensitive-and-non-invasive-assessment-of-hepatocellular-iron-using-a-novel-room-temperature-susceptometer
#20
Johannes Mueller, Hanna Raisi, Vanessa Rausch, Teresa Peccerella, David Simons, Christian Ziener, Heinz-Peter Schlemmer, Helmut Karl Seitz, Nina Waldburger, Thomas Longerich, Beate Katharina Straub, Sebastian Mueller
PURPOSE: Liver iron accumulates in various chronic liver diseases where it is an independent factor of survival and cancerogenesis. We here tested a novel room-temperature susceptometer (RTS) to noninvasively assess liver iron concentration (LIC). MATERIALS AND METHODS: 264 patients with or without signs of iron overload or liver disease were prospectively enrolled. 35 patients underwent liver biopsy with semiquantitative iron determination (Prussian Blue staining), atomic absorption spectroscopy (AAS, n=33) or MRI (n=15)...
May 5, 2017: Journal of Hepatology
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