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https://www.readbyqxmd.com/read/28329223/effect-of-home-monitoring-via-mobile-app-on-the-number-of-in-person-visits-following-ambulatory-surgery-a-randomized-clinical-trial
#1
Kathleen A Armstrong, Peter C Coyte, Mitchell Brown, Brett Beber, John L Semple
Importance: In the age of information and patient-centered care, new methods of delivering postoperative care must be developed and evaluated. Objective: To determine whether follow-up care delivered via a mobile app can be used to avert in-person follow-up care visits compared with conventional, in-person follow-up care in the first 30 days following ambulatory surgery. Design, Setting, and Participants: A randomized clinical trial was conducted from February 1 to August 31, 2015, among ambulatory patients undergoing breast reconstruction at an academic ambulatory care hospital...
March 22, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28328231/use-of-cell-phones-and-computers-for-health-promotion-and-tobacco-cessation-by-american-indian-college-students-in-montana
#2
Jo Ann W Dotson, Lonnie A Nelson, Sara L Young, Dedra Buchwald, John Roll
INTRODUCTION: Cell phones and personal computers have become popular mechanisms for delivering and monitoring health information and education, including the delivery of tobacco cessation education and support. Tobacco smoking is prevalent among American Indians (AIs) and Alaska Natives (ANs), with 26% AI/AN adult men smoking compared to 19% of Caucasian adult males and 22% of African American adult males. Smoking is even more prevalent in Northern Plains AI populations, with 42% of men <i>and</i> women reporting current smoking...
January 2017: Rural and Remote Health
https://www.readbyqxmd.com/read/28328039/reduction-of-metal-adducts-in-oligonucleotide-mass-spectra-in-ion-pair-reversed-phase-chromatography-mass-spectrometry-analysis
#3
Robert E Birdsall, Martin Gilar, Henry Shion, Ying Qing Yu, Weibin Chen
RATIONALE: Electrospray ionization mass spectrometry (ESI-MS)-based techniques commonly used in oligonucleotide analyses are known to be sensitive to alkali metal adduct formation. Adducts directly impact the sensitivity of MS-based analyses as the available charge is distributed across the parent peak and adduct(s). The current study systematically evaluated common liquid chromatography (LC) components in LC/ESI-MS configurations used in oligonucleotide analysis to identify metal adduct contributions from LC instrumentation...
July 30, 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28327645/a-novel-point-of-care-smartphone-based-system-for-monitoring-the-cardiac-and-respiratory-systems
#4
Kwanghyun Sohn, Faisal M Merchant, Omid Sayadi, Dheeraj Puppala, Rajiv Doddamani, Ashish Sahani, Jagmeet P Singh, E Kevin Heist, Eric M Isselbacher, Antonis A Armoundas
Cardio-respiratory monitoring is one of the most demanding areas in the rapidly growing, mobile-device, based health care delivery. We developed a 12-lead smartphone-based electrocardiogram (ECG) acquisition and monitoring system (called "cvrPhone"), and an application to assess underlying ischemia, and estimate the respiration rate (RR) and tidal volume (TV) from analysis of electrocardiographic (ECG) signals only. During in-vivo swine studies (n = 6), 12-lead ECG signals were recorded at baseline and following coronary artery occlusion...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28326761/rapid-vehicle-based-identification-of-location-and-magnitude-of-urban-natural-gas-pipeline-leaks
#5
Joseph C von Fischer, Daniel Cooley, Sam Chamberlain, Adam Gaylord, Claire J Griebenow, Steven P Hamburg, Jessica Salo, Russ Schumacher, David Theobald, Jay Ham
Information about the location and magnitudes of natural gas (NG) leaks from urban distribution pipelines is important for minimizing greenhouse gas emissions and optimizing investment in pipeline management. To enable rapid collection of such data, we developed a relatively simple method using high-precision methane analyzers in Google Street View cars. Our data indicate that this automated leak survey system can document patterns in leak location and magnitude within and among cities, even without wind data...
March 22, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28325611/sediment-bound-trace-metals-in-golfe-juan-bay-northwestern-mediterranean-distribution-availability-and-toxicity
#6
Ma Gregoria Joanne Tiquio, Charlotte Hurel, Nicolas Marmier, Mehwish Taneez, Bruno Andral, Norbert Jordan, Patrice Francour
The concentration, potential mobility, cation exchange capacity and toxicity of eight sediment-bound metals in Golfe-Juan Bay, France were examined. Results revealed significant spatial gradient of metal contamination along Golfe-Juan coast. The distribution and concentration of the metals appear to be influenced by the geochemical properties of the sediment, proximity to anthropogenic sources and general water circulation in the bay. The portion of trace metals found in the exchangeable, carbonate, oxidizable and reducible fractions of the sediment constitute 31%-58% of the total sediment-bound trace metal content, suggesting significant potential for remobilization of metals into the water column...
March 18, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28324938/application-of-semi-supervised-deep-learning-to-lung-sound-analysis
#7
Daniel Chamberlain, Rahul Kodgule, Daniela Ganelin, Vivek Miglani, Richard Ribon Fletcher
The analysis of lung sounds, collected through auscultation, is a fundamental component of pulmonary disease diagnostics for primary care and general patient monitoring for telemedicine. Despite advances in computation and algorithms, the goal of automated lung sound identification and classification has remained elusive. Over the past 40 years, published work in this field has demonstrated only limited success in identifying lung sounds, with most published studies using only a small numbers of patients (typically N<;20) and usually limited to a single type of lung sound...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324937/data-driven-estimation-of-blood-pressure-using-photoplethysmographic-signals
#8
Shi Chao Gao, Peter Wittek, Li Zhao, Wen Jun Jiang
Noninvasive measurement of blood pressure by optical methods receives considerable interest, but the complexity of the measurement and the difficulty of adjusting parameters restrict applications. We develop a method for estimating the systolic and diastolic blood pressure using a single-point optical recording of a photoplethysmographic (PPG) signal. The estimation is data-driven, we use automated machine learning algorithms instead of mathematical models. Combining supervised learning with a discrete wavelet transform, the method is insensitive to minor irregularities in the PPG waveform, hence both pulse oximeters and smartphone cameras can record the signal...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324932/an-ict-and-mobile-health-integrated-approach-to-optimize-patients-education-on-hypertension-and-its-management-by-physicians-the-patients-optimal-strategy-of-treatment-post-pilot-study
#9
Fabio Albini, Xiaoqiu Liu, Camilla Torlasco, Davide Soranna, Andrea Faini, Renata Ciminaghi, Ada Celsi, Matteo Benedetti, Antonella Zambon, Marco di Rienzo, Gianfranco Parati
INTRODUCTION: Uncontrolled hypertension is largely attributed to unsatisfactory doctor's engagement in its optimal management and to poor patients' compliance to therapeutic interventions. ICT and mobile Health solutions might improve these conditions, being widely available and providing highly effective communication strategies. OBJECTIVE: To evaluate whether ICT and mobile Health tools are able to improve hypertension control by improving doctors' engagement and by increasing patients' education and involvement, and their compliance to lifestyle modification and prescribed drug therapy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324613/analysis-of-protein-kinetics-using-fluorescence-recovery-after-photobleaching-frap
#10
Nickolaos Nikiforos Giakoumakis, Maria Anna Rapsomaniki, Zoi Lygerou
Fluorescence recovery after photobleaching (FRAP) is a cutting-edge live-cell functional imaging technique that enables the exploration of protein dynamics in individual cells and thus permits the elucidation of protein mobility, function, and interactions at a single-cell level. During a typical FRAP experiment, fluorescent molecules in a defined region of interest within the cell are bleached by a short and powerful laser pulse, while the recovery of the fluorescence in the region is monitored over time by time-lapse microscopy...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28317742/determination-of-hymexazol-in-26-foods-of-plant-origin-by-modified-quechers-method-and-liquid-chromatography-tandem-mass-spectrometry
#11
Zejun Jiang, Hui Li, Xiaolin Cao, Pengfei Du, Hua Shao, Fen Jin, Maojun Jin, Jing Wang
A rapid and sensitive method based on modified QuEChERS for hymexazol determination in 26 plant-derived foods using liquid chromatography tandem-mass spectrometry (LC-MS/MS) was developed. Variables affecting the separation (LC column, mobile phase additives) and clean-up effects of various dispersive phases, such as PSA, C18, GCB, MWCNTs, PEP-2, Al2O3, Florisil, and PVPP were evaluated. The method was validated using 26 matrices at spiked levels of 0.01 or 0.02, 0.05, 0.1, and 0.5mg/kg (0.05, 0.2, 0.5, and 1...
August 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28317144/uhplc-ms-ms-method-for-the-determination-of-omarigliptin-in-rat-plasma-and-its-application-to-a-pharmacokinetic-study-in-rats
#12
Meng-Fang Li, Xiao-Xia Hu, Ai-Qun Ma
Omarigliptin is a novel long-acting DPP-4 inhibitor used for the treatment of T2DM. In this work, a sensitive and selective UHPLC-MS/MS method was developed and validated for determination of omarigliptin in rat plasma. Sample preparation was performed by protein precipitation with acetonitrile. Chromatographic separation of analytes was achieved on a RRHD Eclipse Plus C18 column (2.1 × 50 mm, 1.8 µ), using gradient mobile phase (0.1% formic acid-acetonitrile) at a flow rate of 0.4 mL/min. Detection was performed in multiple reaction monitoring mode, with target fragment ions m/z 399...
March 19, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28317135/free-mycophenolic-acid-determination-in-human-plasma-ultrafiltrate-by-a-validated-liquid-chromatography-tandem-mass-spectrometry-method
#13
Paulina Łuszczyńska, Tomasz Pawiński, Paweł K Kunicki, Katarzyna Sikorska, Ryszard Marszałek
OBJECTIVES: The aim of this study was to develop and fully validate LC-MS/MS method for free mycophenolic acid (MPA) concentration measurements in plasma ultrafiltrate that will be reliable and simple in preparation with deuterated MPA (MPA-d3) chosen as an internal standard. METHODS: The chromatographic separation was made with Zorbax Eclipse XDB-C18 column (4.6x150 mm) using a gradient of two solutions as a mobile phase: A) water and B) methanol, each containing 0...
March 20, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28316240/heme-gazing-illuminating-eukaryotic-heme-trafficking-dynamics-and-signaling-with-fluorescent-heme-sensors
#14
David A Hanna, Osiris Martinez-Guzman, Amit Ram Reddi
Heme (iron protoporphyrin IX) is an essential protein prosthetic group and signaling molecule required for most life on Earth. All heme dependent processes require the dynamic and rapid mobilization of heme from sites of synthesis or uptake to hemoproteins present in virtually every subcellular compartment. The cytotoxicity and hydrophobicity of heme necessitates that heme mobilization is carefully controlled to mitigate the deleterious effects of this essential toxin. Indeed, a number of disorders, including certain cancers, cardiovascular diseases, and aging and age-related neurodegenerative diseases, are tied to defects in heme homeostasis...
March 18, 2017: Biochemistry
https://www.readbyqxmd.com/read/28315238/comprehensive-gas-phase-peptide-ion-structure-studies-using-ion-mobility-techniques-part-2-gas-phase-hydrogen-deuterium-exchange-for-ion-population-estimation
#15
Mahdiar Khakinejad, Samaneh Ghassabi Kondalaji, Amirmahdi Tafreshian, Stephen J Valentine
Gas-phase hydrogen/deuterium exchange (HDX) using D2O reagent and collision cross-section (CCS) measurements are utilized to monitor the ion conformers of the model peptide acetyl-PAAAAKAAAAKAAAAKAAAAK. The measurements are carried out on a home-built ion mobility instrument coupled to a linear ion trap mass spectrometer containing electron transfer dissociation (ETD) capabilities. ETD is utilized to obtain per-residue deuterium uptake data for select ion conformers, and a new algorithm is presented for interpreting the HDX data...
March 17, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28306207/development-and-validation-of-a-uhplc-ms-ms-method-for-the-simultaneous-determination-of-five-bioactive-flavonoids-in-rat-plasma-and-comparative-pharmacokinetic-study-after-oral-administration-of-xiaochaihu-tang-and-three-compatibilities
#16
Yunhai Bo, Lijuan Wang, Xiao Wu, Longshan Zhao, Jingyu Yang, Zhili Xiong, Chunfu Wu
An accurate, rapid and reliable ultra high performance liquid chromatography with tandem mass spectrometry method was developed and validated for the simultaneous determination of baicalin, wogonoside, baicalein, wogonin and oroxylinA in rat plasma. Then, the stability of baicalin and baicalein in the preparation of plasma sample was systematically investigated. The Waters BEH C18 column was used with a gradient mobile phase system of acetonitrile and water containing 0.1% formic acid. The analytes were detected in the multiple reaction monitoring mode with positive electrospray ionization...
March 17, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28304332/a-wellness-mobile-application-for-smart-health-pilot-study-design-and-results
#17
Giovanna Sannino, Manolo Forastiere, Giuseppe De Pietro
Wellness is one of the main factors crucial in the avoidance of illness or disease. Experience has shown that healthy lifestyle programs are an important strategy to prevent the major shared risk factors for many diseases including cardiovascular diseases, strokes, diabetes, obesity, and hypertension. Within the ambit of the Smart Health 2.0 project, a Wellness App has been developed which has the aim of providing people with something similar to a personal trainer. This Wellness App is able to gather information about the subject, to classify her/him by evaluating some of her/his specific characteristics (physical parameters and lifestyle) and to make personal recommendations to enhance her/his well-being...
March 17, 2017: Sensors
https://www.readbyqxmd.com/read/28303542/sorption-and-desorption-of-silver-ions-by-bentonite-clays
#18
Leonel Vinicius Constantino, Juliana Nunes Quirino, Alessandra Maffei Monteiro, Taufik Abrão, Paulo Sérgio Parreira, Alexandre Urbano, Maria Josefa Santos
Anthropogenic activities have increased the concentration of metal species in the environment. The toxicity of silver ions to aquatic and terrestrial organisms has required monitoring by analytical methods, besides actions to promote its control as pollutant. Sorption and desorption processes are directly related to the mobility and availability of metal ions in the environment. In this context, clay minerals can be used for pre-concentration, removal and recovery of silver ions from aqueous solution. Herein, two bentonite clays (BaVC-1 and SWy-2) were characterised and applied to investigate the sorption and desorption of silver ions...
March 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28303107/localization-and-ordering-of-lipids-around-aquaporin-0-protein-and-lipid-mobility-effects
#19
Rodolfo Briones, Camilo Aponte-Santamaría, Bert L de Groot
Hydrophobic matching, lipid sorting, and protein oligomerization are key principles by which lipids and proteins organize in biological membranes. The Aquaporin-0 channel (AQP0), solved by electron crystallography (EC) at cryogenic temperatures, is one of the few protein-lipid complexes of which the structure is available in atomic detail. EC and room-temperature molecular dynamics (MD) of dimyristoylglycerophosphocholine (DMPC) annular lipids around AQP0 show similarities, however, crystal-packing and temperature might affect the protein surface or the lipids distribution...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28302916/advances-in-heart-failure-a-review-of-biomarkers-emerging-pharmacological-therapies-durable-mechanical-support-and-telemonitoring
#20
REVIEW
Yasbanoo Moayedi, Heather J Ross
The purpose of this review is to provide an overview of diagnosis, prognosis and management of heart failure (HF) with reduced ejection fraction (HFrEF). Specifically, this review is divided into three sections. The first section will address biomarkers. The discovery of biomarkers has allowed further understanding of the pathophysiology of HF and provides insight into potential therapeutic targets. This review will focus on novel applications of natriuretic peptides (NPs) in clinical trials. Next, emerging biomarkers of HF, such as ST2, galectin-3 and copeptin, will be discussed...
April 1, 2017: Clinical Science (1979-)
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