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https://www.readbyqxmd.com/read/28735428/effects-of-low-intensity-pulsed-ultrasound-on-soft-tissue-micro-circulation-in-the-foot
#1
Anna Katharina Kösters, Bergita Ganse, Boyko Gueorguiev, Kajetan Klos, Ali Modabber, Sven Nebelung, Bong-Sung S Kim, Matthias Knobe
PURPOSE: Low-intensity pulsed ultrasound (LIPUS) has been shown to accelerate bone healing and is considered to increase blood flow. The aim of this study was to assess changes in micro-circulation of the foots' soft tissue in response to LIPUS intervention. We hypothesised improved micro-circulation in response to LIPUS. METHODS: Micro-circulation was assessed in 2 mm and 8 mm-deep skin of 50 healthy volunteers using non-invasive laser-doppler spectrophotometry (O2C-device)...
July 22, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28730231/chondroprotective-effects-of-pulsed-shortwave-therapy-in-rabbits-with-experimental-osteoarthritis
#2
Rodica Ana Ungur, Adrian Florea, Alexandru Flaviu Tăbăran, Iuliu Călin Scurtu, Ioan Onac, Ileana Monica Borda, László Irsay, Viorela Mihaela Ciortea, Eleonora Dronca, Mihnea Tudor Zdrenghea, ŞoimiŢa Mihaela Suciu
INTRODUCTION: Osteoarthritis (OA) represents a public health challenge since the pathogenic treatment, able to induce cartilage regeneration, still remains unknown. Ageing of the population and increasing OA prevalence have led to a lot of research, aiming to identify treatments acting on chondrocytes that play a determinant role in cartilage degeneration÷regeneration balance. Pulsed shortwave therapy (with the classical application form - Diapulse) is a physiotherapy method with anabolic effects demonstrated on nervous, conjunctive and vascular tissues, but its effects on OA cartilage are not known...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28702993/gold-nanorod-induced-warming-of-embryos-from-the-cryogenic-state-enhances-viability
#3
Kanav Khosla, Yiru Wang, Mary Hagedorn, Zhenpeng Qin, John Bischof
Zebrafish embryos can attain a stable cryogenic state by microinjection of cryoprotectants followed by rapid cooling, but the massive size of the embryo has consistently led to failure during the convective warming process. Here we address this zebrafish cryopreservation problem by using gold nanorods (GNRs) to assist in the warming process. Specifically, we microinjected the cryoprotectant propylene glycol into zebrafish embryos along with GNRs, and the samples were cooled at a rate of 90 000 °C/min in liquid nitrogen...
July 13, 2017: ACS Nano
https://www.readbyqxmd.com/read/28694860/postpartum-aortic-bifurcation-thrombosis-on-the-background-of-thrombophilic-disorder
#4
Roxana Elena Bohîltea, Natalia Turcan, Horia Muresian, Silvia Condu, Elvira Bratila, Monica Mihaela Cîrstoiu
Two main causes of arterial thrombosis are known: fi rst - atherosclerosis, extensively studied, and the second - atrial fi brillation. The lack of any risk factors and the occurrence at young age of a thrombotic event requires us to investigate possible other conditions, including inherited thrombophilia that is represented by a series of genetic disorders that increase the risk of thromboembolic disease. The role of thrombophilia in the occurrence of arterial thrombosis is inconsequential; this disorder is characterized by the tendency of developing venous thrombosis...
September 2016: Mædica
https://www.readbyqxmd.com/read/28688430/imaging-of-rotational-wave-function-in-photodissociation-of-rovibrationally-excited-hcl-molecules
#5
K Grygoryeva, J Rakovský, O Votava, M Fárník
We demonstrate a visualization of quantum mechanical phenomena with the velocity map imaging (VMI) technique, combining vibrationally mediated photodissociation (VMP) of a simple diatomic HCl with the VMI of its H-photofragments. Free HCl molecules were excited by a pump infrared (IR) laser pulse to particular rotational J levels of the v = 2 vibrational state, and subsequently a probe ultraviolet laser photodissociated the molecule at a fixed wavelength of 243.07 nm where also the H-fragments were ionized...
July 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28687310/structural-and-functional-disorders-of-hippocampus-following-ischemia-reperfusion-in-lower-limbs-and-kidneys
#6
Narges Karimi, Masoud Haghani, Ali Noorafshan, Seyed Mostafa Shid Moosavi
Recent evidence suggests that ischemia/reperfusion (I/R) in an organ may have distance effect on the brain. In this study, the effects of renal I/R, limb I/R or both together on the structural and function of hippocampus were evaluated and compared. Hence, rats were subjected to 2-h bilateral lower limb ischemia, 45-min bilateral renal ischemia, or combined limb and renal ischemia followed by 1-day reperfusion. At 22-h reperfusion, each rat was fixed on a stereotaxic apparatus for performing electrophysiological study on the hippocampus...
July 4, 2017: Neuroscience
https://www.readbyqxmd.com/read/28673762/diffusion-weighted-mri-in-image-guided-adaptive-brachytherapy-tumor-delineation-feasibility-study-and-comparison-with-gec-estro-guidelines
#7
Antoine Schernberg, Corinne Balleyguier, Isabelle Dumas, Sébastien Gouy, Alexandre Escande, Enrica Bentivegna, Philippe Morice, Eric Deutsch, Christine Haie-Meder, Cyrus Chargari
PURPOSE: To examine the feasibility of using diffusion-weighted images (DWIs) coregistered with T2-weighted (T2w) sequence in treatment planning system to improve target delineation for image-guided adaptive brachytherapy (IGABT) in locally advanced cervical cancer patients. METHODS AND MATERIALS: We retrospectively examined the records of consecutive patients who were referred to our institution for pulse-dose-rate IGABT between May and December 2015 after concurrent chemoradiation...
June 30, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28673052/synthesis-of-electrical-conductive-silica-nanofiber-gold-nanoparticle-composite-by-laser-pulses-and-sputtering-technique
#8
Sarah Hamza, Anna Ignaszak, Amirkianoosh Kiani
Biocompatible-sensing materials hold an important role in biomedical applications where there is a need to translate biological responses into electrical signals. Increasing the biocompatibility of these sensing devices generally causes a reduction in the overall conductivity due to the processing techniques. Silicon is becoming a more feasible and available option for use in these applications due to its semiconductor properties and availability. When processed to be porous, it has shown promising biocompatibility; however, a reduction in its conductivity is caused by its oxidization...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28672798/a-real-time-contactless-pulse-rate-and-motion-status-monitoring-system-based-on-complexion-tracking
#9
Yu-Chen Lin, Nai-Kuan Chou, Guan-You Lin, Meng-Han Li, Yuan-Hsiang Lin
Subject movement and a dark environment will increase the difficulty of image-based contactless pulse rate detection. In this paper, we detected the subject's motion status based on complexion tracking and proposed a motion index (MI) to filter motion artifacts in order to increase pulse rate measurement accuracy. Additionally, we integrated the near infrared (NIR) LEDs with the adopted sensor and proposed an effective method to measure the pulse rate in a dark environment. To achieve real-time data processing, the proposed framework is constructed on a Field Programmable Gate Array (FPGA) platform...
June 24, 2017: Sensors
https://www.readbyqxmd.com/read/28667569/long-term-safety-and-efficacy-of-lisdexamfetamine-dimesylate-in-children-and-adolescents-with-adhd-a-phase-iv-2-year-open-label-study-in-europe
#10
David R Coghill, Tobias Banaschewski, Peter Nagy, Isabel Hernández Otero, César Soutullo, Brian Yan, Beatriz Caballero, Alessandro Zuddas
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is increasingly recognized as a persistent disorder requiring long-term management. OBJECTIVES: Our objective was to evaluate the 2-year safety and efficacy of lisdexamfetamine dimesylate (LDX) in children and adolescents with ADHD. METHODS: Participants (aged 6-17 years) with ADHD received open-label, dose-optimized LDX 30, 50, or 70 mg/day for 104 weeks. Safety monitoring included treatment-emergent adverse events (TEAEs), vital signs, electrocardiography, and growth...
June 30, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28667080/a-randomized-trial-of-vitamin-d-supplementation-on-vascular-function-in-ckd
#11
Vivek Kumar, Ashok Kumar Yadav, Anupam Lal, Vinod Kumar, Manphool Singhal, Laurent Billot, Krishan Lal Gupta, Debasish Banerjee, Vivekanand Jha
Vitamin D deficiency associates with mortality in patients with CKD, and vitamin D supplementation might mitigate cardiovascular disease risk in CKD. In this randomized, double-blind, placebo-controlled trial, we investigated the effect of cholecalciferol supplementation on vascular function in 120 patients of either sex, aged 18-70 years, with nondiabetic CKD stage 3-4 and vitamin D deficiency (serum 25-hydroxyvitamin D ≤20 ng/ml). We randomized patients using a 1:1 ratio to receive either two directly observed oral doses of cholecalciferol (300,000 IU) or matching placebo at baseline and 8 weeks...
June 30, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28663895/optimization-of-fluorescent-imaging-in-the-operating-room-through-pulsed-acquisition-and-gating-to-ambient-background-cycling
#12
Kristian J Sexton, Yan Zhao, Scott C Davis, Shudong Jiang, Brian W Pogue
The design of fluorescence imaging instruments for surgical guidance is rapidly evolving, and a key issue is to efficiently capture signals with high ambient room lighting. Here, we introduce a novel time-gated approach to fluorescence imaging synchronizing acquisition to the 120 Hz light of the room, with pulsed LED excitation and gated ICCD detection. It is shown that under bright ambient room light this technique allows for the detection of physiologically relevant nanomolar fluorophore concentrations, and in particular reduces the light fluctuations present from the room lights, making low concentration measurements more reliable...
May 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28640289/consensus-structures-of-the-mo-v-sites-of-sulfite-oxidizing-enzymes-derived-from-variable-frequency-pulsed-epr-spectroscopy-isotopic-labelling-and-dft-calculations
#13
John H Enemark
Sulfite-oxidizing enzymes from eukaryotes and prokaryotes have five-coordinate distorted square-pyramidal coordination about the molybdenum atom. The paramagnetic Mo(v) state is easily generated, and over the years four distinct CW EPR spectra have been identified, depending upon enzyme source and the reaction conditions, namely high and low pH (hpH and lpH), phosphate inhibited (Pi) and sulfite (or blocked). Extensive studies of these paramagnetic forms of sulfite-oxidizing enzymes using variable frequency pulsed electron spin echo (ESE) spectroscopy, isotopic labeling and density functional theory (DFT) calculations have led to the consensus structures that are described here...
June 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28638398/discovery-of-putative-herbicide-resistance-genes-and-its-regulatory-network-in-chickpea-using-transcriptome-sequencing
#14
Mir A Iquebal, Khela R Soren, Priyanka Gangwar, P S Shanmugavadivel, K Aravind, Deepak Singla, Sarika Jaiswal, Rahul S Jasrotia, Sushil K Chaturvedi, Narendra P Singh, Rajeev K Varshney, Anil Rai, Dinesh Kumar
Background: Chickpea (Cicer arietinum L.) contributes 75% of total pulse production. Being cheaper than animal protein, makes it important in dietary requirement of developing countries. Weed not only competes with chickpea resulting into drastic yield reduction but also creates problem of harboring fungi, bacterial diseases and insect pests. Chemical approach having new herbicide discovery has constraint of limited lead molecule options, statutory regulations and environmental clearance. Through genetic approach, transgenic herbicide tolerant crop has given successful result but led to serious concern over ecological safety thus non-transgenic approach like marker assisted selection is desirable...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28635664/adolescent-exposure-to-the-synthetic-cannabinoid-win-55212-2-modifies-cocaine-withdrawal-symptoms-in-adult-mice
#15
María A Aguilar, Juan Carlos Ledesma, Marta Rodríguez-Arias, Carles Penalva, Carmen Manzanedo, José Miñarro, M Carmen Arenas
Chronic cannabinoid consumption is an increasingly common behavior among teenagers and has been shown to cause long-lasting neurobehavioral alterations. Besides, it has been demonstrated that cocaine addiction in adulthood is highly correlated with cannabis abuse during adolescence. Cocaine consumption and subsequent abstinence from it can cause psychiatric symptoms, such as psychosis, cognitive impairment, anxiety, and depression. The aim of the present research was to study the consequences of adolescent exposure to cannabis on the psychiatric-like effects promoted by cocaine withdrawal in adult mice...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28634410/climate-response-to-the-8-2-ka-event-in-coastal-california
#16
Jessica L Oster, Warren D Sharp, Aaron K Covey, Jansen Gibson, Bruce Rogers, Hari Mix
A fast-growing stalagmite from the central California coast provides a high-resolution record of climatic changes synchronous with global perturbations resulting from the catastrophic drainage of proglacial Lake Agassiz at ca. 8.2 ka. High frequency, large amplitude variations in carbon isotopes during the 8.2 ka event, coupled with pulsed increases in phosphorus concentrations, indicate more frequent or intense winter storms on the California coast. Decreased magnesium-calcium ratios point toward a sustained increase in effective moisture during the event, however the magnitude of change in Mg/Ca suggests this event was not as pronounced on the western North American coast as anomalies seen in the high northern latitudes and monsoon-influenced areas...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28632000/the-influence-of-intrapersonal-sensorimotor-experiences-on-the-corticospinal-responses-during-action-observation
#17
James W Roberts, Merryn D Constable, Raquel Burgess, James L Lyons, Timothy N Welsh
The coupling of perception and action has been strongly indicated by evidence that the observation of an action primes a response in the observer. It has been proposed that these primed responses may be inhibited when the observer is able to more closely distinguish between self- and other-generated actions - the greater the distinction, then the greater the inhibition of the primed response. This self-other distinction is shown to be enhanced following a period of visual feedback of self-generated action. The present study was designed to examine how sensorimotor experiences pertaining to self-generated action affect primed responses from observed actions...
February 13, 2017: Social Neuroscience
https://www.readbyqxmd.com/read/28631783/ultrafast-charge-dynamics-in-glycine-induced-by-attosecond-pulses
#18
David Ayuso, Alicia Palacios, Piero Decleva, Fernando Martín
The combination of attosecond pump-probe techniques with mass spectrometry methods has recently led to the first experimental demonstration of ultrafast charge dynamics in a biomolecule, the amino acid phenylalanine [Calegari et al., Science, 2014, 346, 336]. Using an extension of the static-exchange density functional theory (DFT) method, the observed dynamics was explained as resulting from the coherent superposition of ionic states produced by the broadband attosecond pulse. Here, we have used the static-exchange DFT method to investigate charge migration induced by attosecond pulses in the glycine molecule...
June 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28629077/effects-of-the-surface-modification-of-polyurethane-substrates-on-genotoxicity-and-blood-activation-processes
#19
Roman Major, Hanna Plutecka, Anna Gruszczynska, Juergen M Lackner, Boguslaw Major
The aim of this study was to determine the mutagenic and thrombogenic potential of a material composed of a thin coating deposited on a polymeric substrate. In this work, a surface was modified in a manner that would mimic the function of cellular niches. Finally, the surfaces should actively capture and differentiate progenitor cells from the blood stream. Thin films with 10 to 500nm thicknesses were deposited by unbalanced, pulsed DC magnetron sputtering on smooth polyurethane. Such high energy conditions led to a stiffening of the polymer surface layers by pseudodiffusion during the initial stages of film growth...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628198/pulse-frequency-and-soil-litter-mixing-alter-the-control-of-cumulative-precipitation-over-litter-decomposition
#20
François-Xavier Joly, Kelsey L Kurupas, Heather L Throop
Macroclimate has traditionally been considered the predominant driver of litter decomposition. However, in drylands, cumulative monthly or annual precipitation typically fails to predict decomposition. In these systems, the windows of opportunity for decomposer activity may rather depend on the precipitation frequency and local factors affecting litter desiccation, such as soil-litter mixing. We used a full-factorial microcosm experiment to disentangle the relative importance of cumulative precipitation, pulse frequency, and soil-litter mixing on litter decomposition...
June 19, 2017: Ecology
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