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https://www.readbyqxmd.com/read/28445107/hypodermal-adipose-tissue-sonoelastography-for-monitoring-treatment-response-in-patients-with-plaque-psoriasis
#1
Annunziata Dattola, Simone Altobelli, Salvatore Marsico, Domenico Plastina, Steven P Nistico, Armando Cavallo, Roberto Floris, Luca Bianchi, Manlio Guazzaroni
BACKGROUND: Psoriasis (PsO) is a multifactorial chronic and relapsing skin disease that affects about 125 million people in the world. Several studies have demonstrated the link between adipose tissue, inflammation, and PsO. The purpose of our study is to evaluate hypodermal adipose tissue inflammation underneath PsO plaques quantifying tissue elasticity with sonoelastography before and after treatment. The study was conducted at the Department of Dermatology of the University of "Rome Tor Vergata" and Department of Radiology of the University of "Rome Tor Vergata...
April 24, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28444252/accurate-measurement-of-indoor-radon-concentration-using-a-low-effective-volume-radon-monitor
#2
Aya Tanaka, Nodoka Minami, Yumi Yasuoka, Takeshi Iimoto, Yasutaka Omori, Hiroyuki Nagahama, Jun Muto, Takahiro Mukai
AlphaGUARD is a low-effective volume detector and one of the most popular portable radon monitors which is currently available. This study investigated whether AlphaGUARD can accurately measure the variable indoor radon levels. The consistency of the radon-concentration data obtained by AlphaGUARD is evaluated against simultaneous measurements by two other monitors (each ~10 times more sensitive than AlphaGUARD). When accurately measuring radon concentration with AlphaGUARD, we found that the net counts of the AlphaGUARD were required of at least 500 counts, <25% of the relative percent difference...
April 24, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28443837/real-time-plasmonic-qpcr-how-fast-is-ultra-fast-30-cycles-in-54-seconds
#3
Philip J R Roche, Mohamed Najih, Seung S Lee, Lenore K Beitel, Matthew L Carnevale, Miltiadis Paliouras, Andrew G Kirk, Mark A Trifiro
Polymerase Chain Reaction (PCR) is a critical tool for biological research investigators but recently it also has been making a significant impact in clinical, veterinary and agricultural applications. Plasmonic PCR, which employs the very efficient heat transfer of optically irradiated metallic nanoparticles, is a simple and powerful methodology to drive PCR reactions. The scalability of next generation plasmonic PCR technology will introduce various forms of PCR applications ranging from small footprint portable point of care diagnostic devices to large footprint central laboratory multiplexing devices...
April 26, 2017: Analyst
https://www.readbyqxmd.com/read/28443278/saliva-liquid-biopsy-for-point-of-care-applications
#4
REVIEW
Katri Aro, Fang Wei, David T Wong, Michael Tu
Saliva is a non-invasive biofluid, which is easy to collect, transport, and store. Because of its accessibility and connection to systemic diseases, saliva is one of the best candidates for the advancement of point-of-care medicine, where individuals are able to easily monitor their health status by using portable convenient tools such as smartphones. There are a variety of scenarios with which saliva can be used: studies have been conducted on using saliva to measure stress hormones, enzyme levels, developmental disease biomarkers, and even cancer mutations...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28442333/effects-of-auditory-stimuli-on-electrical-activity-in-the-brain-during-cycle-ergometry
#5
Marcelo Bigliassi, Costas I Karageorghis, Michael J Wright, Guido Orgs, Alexander V Nowicky
The present study sought to further understanding of the brain mechanisms that underlie the effects of music on perceptual, affective, and visceral responses during whole-body modes of exercise. Eighteen participants were administered light-to-moderate intensity bouts of cycle ergometer exercise. Each exercise bout was of 12-min duration (warm-up [3min], exercise [6min], and warm-down [3min]). Portable techniques were used to monitor the electrical activity in the brain, heart, and muscle during the administration of three conditions: music, audiobook, and control...
April 22, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28439206/is-operavox-a-clinically-useful-tool-for-the-assessment-of-voice-in-a-general-ent-clinic
#6
Richard Teck Kee Siau, Jay Goswamy, Sue Jones, Sadie Khwaja
BACKGROUND: Objective acoustic analysis is a key component of multidimensional voice assessment. OperaVOX is an iOS app which has been shown to be comparable to Multi Dimensional Voice Program for most principal measures of vocal function. As a relatively cheap, portable and easily accessible form of acoustic analysis, OperaVOX may be more clinically useful than laboratory-based software in many situations. This study aims to determine whether correlation exists between acoustic measurements obtained using OperaVOX, and perceptual evaluation of voice...
2017: BMC Ear, Nose, and Throat Disorders
https://www.readbyqxmd.com/read/28438425/mobile-laboratories-an-innovative-and-efficient-solution-for-radiological-characterization-of-sites-under-or-after-decommissioning
#7
V Goudeau, B Daniel, D Dubot
During the operation and the decommissioning of a nuclear site the operator must assure the protection of the workers and the environment. It must furthermore identify and classify the various wastes, while optimizing the associated costs. At all stages of the decommissioning radiological measurements are performed to determine the initial situation, to monitor the demolition and clean-up, and to verify the final situation. Radiochemical analysis is crucial for the radiological evaluation process to optimize the clean-up operations and to the respect limits defined with the authorities...
April 21, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28437376/organizational-issues-structure-and-processes-of-care-in-257-icus-in-latin-america-a-study-from-the-latin-america-intensive-care-network
#8
Elisa Estenssoro, Leyla Alegría, Gastón Murias, Gilberto Friedman, Ricardo Castro, Nicolas Nin Vaeza, Cecilia Loudet, Alejandro Bruhn, Manuel Jibaja, Gustavo Ospina-Tascon, Fernando Ríos, Flavia R Machado, Alexandre Biasi Cavalcanti, Arnaldo Dubin, F Javier Hurtado, Arturo Briva, Carlos Romero, Guillermo Bugedo, Jan Bakker, Maurizio Cecconi, Luciano Azevedo, Glenn Hernandez
OBJECTIVE: Latin America bears an important burden of critical care disease, yet the information about it is scarce. Our objective was to describe structure, organization, processes of care, and research activities in Latin-American ICUs. DESIGN: Web-based survey submitted to ICU directors. SETTINGS: ICUs located in nine Latin-American countries. SUBJECTS: Individual ICUs. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Two hundred fifty-seven of 498 (52%) of submitted surveys responded: 51% from Brazil, 17% Chile, 13% Argentina, 6% Ecuador, 5% Uruguay, 3% Colombia, and 5% between Mexico, Peru, and Paraguay...
April 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28432532/a-portable-battery-powered-microfluidic-impedance-cytometer-with-smartphone-readout-towards-personal-health-monitoring
#9
Niloy Talukder, Abbas Furniturewalla, Tuan Le, Matthew Chan, Shreyas Hirday, Xinnan Cao, Pengfei Xie, Zhongtian Lin, Azam Gholizadeh, Steve Orbine, Mehdi Javanmard
We present a portable system for personalized blood cell counting consisting of a microfluidic impedance cytometer and portable analog readout electronics, feeding into an analog-to-digital converter (ADC), and being transmitted via Bluetooth to a user-accessible mobile application. We fabricated a microfluidic impedance cytometer with a novel portable analog readout. The novel design of the analog readout, which consists of a lock-in-amplifier followed by a high-pass filter stage for subtraction of drift and DC offset, and a post-subtraction high gain stage, enables detection of particles and cells as small as 1 μm in diameter, despite using a low-end 8-bit ADC...
June 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28431363/nanomaterial-based-electrochemical-sensors-for-arsenic-a-review
#10
REVIEW
Sureshkumar Kempahanumakkagari, Akash Deep, Ki-Hyun Kim, Suresh Kumar Kailasa, Hye-On Yoon
The existence of arsenic in the environment poses severe global health threats. Considering its toxicity, the sensing of arsenic is extremely important. Due to the complexity of environmental and biological samples, many of the available detection methods for arsenic have serious limitations on selectivity and sensitivity. To improve sensitivity and selectivity and to circumvent interferences, different electrode systems have been developed based on surface modification with nanomaterials including carbonaceous nanomaterials, metallic nanoparticles (MNPs), metal nanotubes (MNTs), and even enzymes...
April 13, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28429065/rapid-electrochemical-quantification-of-salmonella-pullorum-and-salmonella-gallinarum-based-on-glucose-oxidase-and-antibody-modified-silica-nanoparticles
#11
Yiheng Luo, Wenchao Dou, Guangying Zhao
In this article, a facile and sensitive electrochemical method for quantification of Salmonella Pullorum and Salmonella Gallinarum (S. Pullorum and S. Gallinarum) was established by monitoring glucose consumption with a personal glucose meter (PGM). Antibody-functionalized magnetic nanoparticles (IgG-MNPs) were used to capture and enrich S. Pullorum and S. Gallinarum, and IgG-MNPs-S. Pullorum and IgG-MNPs-S. Gallinarum complexes were magnetically separated from a sample using a permanent magnet. The trace tag was prepared by loading polyclonal antibodies and high-content glucose oxidase on amino-functionalized silica nanoparticles (IgG-SiNPs-GOx)...
April 21, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28427532/nanotechnology-for-food-packaging-and-food-quality-assessment
#12
Marco Rossi, Daniele Passeri, Alberto Sinibaldi, Mariglen Angjellari, Emanuela Tamburri, Angela Sorbo, Elisabetta Carata, Luciana Dini
Nanotechnology has paved the way to innovative food packaging materials and analytical methods to provide the consumers with healthier food and to reduce the ecological footprint of the whole food chain. Combining antimicrobial and antifouling properties, thermal and mechanical protection, oxygen and moisture barrier, as well as to verify the actual quality of food, e.g., sensors to detect spoilage, bacterial growth, and to monitor incorrect storage conditions, or anticounterfeiting devices in food packages may extend the products shelf life and ensure higher quality of foods...
2017: Advances in Food and Nutrition Research
https://www.readbyqxmd.com/read/28413683/obtaining-accurate-glucose-measurements-from-wild-animals-under-field-conditions-comparing-a-hand-held-glucometer-with-a-standard-laboratory-technique-in-grey-seals
#13
Kimberley A Bennett, Lucy M Turner, Sebastian Millward, Simon E W Moss, Ailsa J Hall
Glucose is an important metabolic fuel and circulating levels are tightly regulated in most mammals, but can drop when body fuel reserves become critically low. Glucose is mobilized rapidly from liver and muscle during stress in response to increased circulating cortisol. Blood glucose levels can thus be of value in conservation as an indicator of nutritional status and may be a useful, rapid assessment marker for acute or chronic stress. However, seals show unusual glucose regulation: circulating levels are high and insulin sensitivity is limited...
2017: Conservation Physiology
https://www.readbyqxmd.com/read/28411800/quantification-of-copper-content-with-laser-induced-breakdown-spectroscopy-as-a-potential-indicator-of-offal-adulteration-in-beef
#14
Maria P Casado-Gavalda, Yash Dixit, David Geulen, Raquel Cama-Moncunill, Xavier Cama-Moncunill, Maria Markiewicz-Keszycka, Patrick J Cullen, Carl Sullivan
Laser induced breakdown spectroscopy (LIBS) is an emerging technique in the field of food analysis which provides various advantages such as minimal sample preparation, chemical free, rapid detection, provision of spatial information and portability. In this study, LIBS was employed for quantitative analysis of copper content in minced beef samples spiked with beef liver over three independent batches. Copper content was determined with graphite furnace atomic absorption spectroscopy (GFAAS) in order to obtain reference values for modelling...
July 1, 2017: Talanta
https://www.readbyqxmd.com/read/28411334/normative-values-for-a-tablet-computer-based-application-to-assess-chromatic-contrast-sensitivity
#15
Lakshmi Bodduluri, Mei Ying Boon, Malcolm Ryan, Stephen J Dain
Tablet computer displays are amenable for the development of vision tests in a portable form. Assessing color vision using an easily accessible and portable test may help in the self-monitoring of vision-related changes in ocular/systemic conditions and assist in the early detection of disease processes. Tablet computer-based games were developed with different levels of gamification as a more portable option to assess chromatic contrast sensitivity. Game 1 was designed as a clinical version with no gaming elements...
April 14, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28410055/olfactory-recognition-based-on-eeg-gamma-band-activity
#16
Onder Aydemir
There are various kinds of brain monitoring techniques, including local field potential, near-infrared spectroscopy, magnetic resonance imaging (MRI), positron emission tomography, functional MRI, electroencephalography (EEG), and magnetoencephalography. Among those techniques, EEG is the most widely used one due to its portability, low setup cost, and noninvasiveness. Apart from other advantages, EEG signals also help to evaluate the ability of the smelling organ. In such studies, EEG signals, which are recorded during smelling, are analyzed to determine the subject lacks any smelling ability or to measure the response of the brain...
April 14, 2017: Neural Computation
https://www.readbyqxmd.com/read/28391201/using-wearable-technology-to-generate-objective-parkinson-s-disease-dyskinesia-severity-score-possibilities-for-home-monitoring
#17
Mehdi Delrobaei, Navid Baktash, Greydon Gilmore, Kenneth McIsaac, Mandar Jog
A variety of clinical scales are available to assess dyskinesia severity in Parkinson's disease patients; however, such assessments are subjective, do not provide long term monitoring, and their use is subject to inter- and intra-rater variability. In this study, an objective dyskinesia score was developed using an IMU-based motion capture system. Deep brain stimulation (DBS) surgery is currently the only acute intervention that results in rapidly progressive reduction of dyskinesia's severity, hence this form of therapy was selected as a model to validate the proposed method...
April 3, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28387718/recent-advances-in-electrochemical-immunosensors
#18
REVIEW
Benoît Piro, Steeve Reisberg
Immunosensors have experienced a very significant growth in recent years, driven by the need for fast, sensitive, portable and easy-to-use devices to detect biomarkers for clinical diagnosis or to monitor organic pollutants in natural or industrial environments. Advances in the field of signal amplification using enzymatic reactions, nanomaterials such as carbon nanotubes, graphene and graphene derivatives, metallic nanoparticles (gold, silver, various oxides or metal complexes), or magnetic beads show how it is possible to improve collection, binding or transduction performances and reach the requirements for realistic clinical diagnostic or environmental control...
April 7, 2017: Sensors
https://www.readbyqxmd.com/read/28386077/an-assay-system-for-point-of-care-diagnosis-of-tuberculosis-using-commercially-manufactured-pcb-technology
#19
Daniel Evans, Konstantinos I Papadimitriou, Louise Greathead, Nikolaos Vasilakis, Panagiotis Pantelidis, Peter Kelleher, Hywel Morgan, Themistoklis Prodromakis
Rapid advances in clinical technologies, detection sensitivity and analytical throughput have delivered a significant expansion in our knowledge of prognostic and diagnostic biomarkers in many common infectious diseases, such as Tuberculosis (TB). During the last decade, a significant number of approaches to TB diagnosis have been attempted at Point-of-Care (PoC), exploiting a large variation of techniques and materials. In this work, we describe an electronics-based Enzyme-Linked ImmunoSorbent Assay (eELISA), using a Lab-on-a-Printed Circuit Board (LoPCB) approach, for TB diagnosis based on cytokine detection...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28384272/a-novel-low-complexity-digital-filter-design-for-wearable-ecg-devices
#20
Shadnaz Asgari, Alireza Mehrnia
Wearable and implantable Electrocardiograph (ECG) devices are becoming prevailing tools for continuous real-time personal health monitoring. The ECG signal can be contaminated by various types of noise and artifacts (e.g., powerline interference, baseline wandering) that must be removed or suppressed for accurate ECG signal processing. Limited device size, power consumption and cost are critical issues that need to be carefully considered when designing any portable health monitoring device, including a battery-powered ECG device...
2017: PloS One
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