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https://www.readbyqxmd.com/read/28648437/utility-of-adjunctive-modalities-in-coronary-chronic-total-occlusion-intervention
#1
REVIEW
Hemal Bhatt, Sean Janzer, Jon C George
Coronary chronic total occlusion (CTO) intervention remains one of the most challenging domains in interventional cardiology. Due to the technical challenges involved and potential procedural complications, CTO percutaneous coronary intervention (PCI) attempt and success rates remain less than standard PCI. However, the use of several adjunctive tools such as intravascular ultrasound, optical coherence tomography, rotational atherectomy, orbital atherectomy, excimer laser coronary atherectomy and percutaneous left ventricular assist device may contribute to improved CTO PCI success rates or provide better hemodynamic assessment of CTO lesion (i...
May 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28647617/photodynamic-therapy-with-epidermal-ablation-using-fractional-co2-laser-for-treating-superficial-basal-cell-carcinoma-a-case-series
#2
Jae Min Sung, You Chan Kim
No abstract text is available yet for this article.
June 21, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28646390/2940-nm-er-yag-fractional-laser-enhanced-the-effect-of-topical-drug-for-psoriasis
#3
Ruilian Li, Jun Zhou, Hui Su, Mei Wang, Yongxian Wang, Shengxiang Xiao, Huiqun Ma
We observed the promoting effects of the 2940-nm erbium:YAG (Er:YAG) fractional laser in topical drug delivery for psoriasis. A total of five (four males and one female) recalcitrant psoriasis patients were given laser treatment eight times at 1-week intervals with the following parameters: 5-11% spot density and 100-μm energy depth. The psoriatic skin lesions on the left knee and the corresponding lesions at the right ones of each psoriasis patient were randomly divided into two groups: laser + topical drug group (L) and drug alone group (D)...
June 23, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28633367/cortical-glutamate-in-migraine
#4
Ronald Zielman, Jannie P Wijnen, Andrew Webb, Gerrit L J Onderwater, Itamar Ronen, Michel D Ferrari, Hermien E Kan, Gisela M Terwindt, Mark C Kruit
Cortical hyperexcitability due to enhanced glutamatergic activity has been implicated in migraine pathophysiology but direct evidence is lacking. Here we assessed glutamate levels and intracellular mobility of glutamate in the visual cortex of migraineurs in-between attacks. We included 50 migraineurs (23 with aura and 27 without aura) and 24 age- and gender-matched non-headache controls. We used proton magnetic resonance spectroscopy (1H-MRS) and diffusion weighted spectroscopy at 7 T with a single volume of interest (2 × 2 × 3 cm) located in the primary and secondary visual cortex...
June 14, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28632750/renal-sodium-handling-and-blood-pressure-changes-in-gestational-protein-restricted-offspring-role-of-renal-nerves-and-ganglia-neurokinin-expression
#5
Augusto H Custódio, Marcelo C de Lima, Bárbara Vaccari, Patrícia A Boer, José A R Gontijo
BACKGROUND: Considering long-term changes in renal sodium handling and blood pressure in maternal protein-restricted (LP) offspring, we assumed that the development of LP hypertension results from abnormal dorsal root ganglia (DRG) neurokinin expression associated with impaired responsiveness of renal sensory receptors, promoting a reduced urinary excretion of sodium. The present study investigates whether increased blood pressure in protein-restricted offspring would be associated with changes in the DRG cells and in renal pelvic wall expression of NK1R, SP and CGRP when compared to NP offspring...
2017: PloS One
https://www.readbyqxmd.com/read/28628688/effectiveness-of-a-nutraceutical-during-non-ablative-1927-nm-fractional-laser-on-patients-with-facial-hyperpigmentation-and-photoaging
#6
Joely Kaufman-Janette, Alex Cazzaniga, Annelyse Ballin, Rachel Swanson-Garcell
<p>Background: Fractional lasers have been proven to treat hyperpigmentation and photoaging. Little research has been done on the effects of supplements on healing post-laser resurfacing. A nutraceutical could offer the benefit of faster healing of the skin and fewer side effects.</p> <p>Objective: Evaluate the effectiveness of a nutraceutical associated with fractional 1927 nm laser in healing time and effectiveness on hyperpigmentation and photoaging.</p> <p>Methods & Materials: A prospective, randomized, evaluator-blinded, pilot study included Fitzpatrick skin types I-III patients with hyperpigmentation and photoaging randomly assigned to two groups...
May 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28622082/comparing-the-effectiveness-of-fractional-co2-laser-and-the-combination-therapy-with-micro-needling-and-topical-10-trichloroacetic-acid-to-remove-infra-orbital-dark-circles-in-tehran-women
#7
Abbas Zamanian, Mahba Azizi, Mohamadreza Ghasemi, Elham Behrangi, Sedigheh Naeji
BACKGROUND: Infra-orbital dark circles in now identified as a cosmetic problem which should be considered in treatment issue. The present study aimed to assess and compare the clinical efficiency of the combination of micro-needling and 10% trichloroacetic acid (TCA) cream as well as carbon dioxide laser in the management of infra-orbital dark circles. METHODS: This randomized clinical trial was performed on women ranged 28 to 62 years that complained of infra-orbital dark circles...
June 16, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28618474/variance-of-permutation-entropy-and-the-influence-of-ordinal-pattern-selection
#8
Douglas J Little, Deb M Kane
Permutation entropy (PE) is a widely used measure for complexity, often used to distinguish between complex systems (or complex systems in different states). Here, the PE variance for a stationary time series is derived, and the influence of ordinal pattern selection, specifically whether the ordinal patterns are permitted to overlap or not, is examined. It was found that permitting ordinal patterns to overlap reduces the PE variance, improving the ability of this statistic to distinguish between complex system states for both numeric (fractional Gaussian noise) and experimental (semiconductor laser with optical feedback) systems...
May 2017: Physical Review. E
https://www.readbyqxmd.com/read/28613826/microtrace-analysis-of-rare-earth-element-residues-in-femtogram-quantities-by-laser-desorption-and-laser-postionization-mass-spectrometry
#9
Zhibin Yin, Zhouyi Xu, Rong Liu, Wei Hang, Benli Huang
A newly developed laser desorption and laser postionization time-of-flight mass spectrometer (LD-LPI-TOFMS) for the direct microtrace determination of rare earth elements (REEs) in residues has been presented. Benefiting from spatially and temporally separated processes between desorption and ionization, LD-LPI-TOFMS plays a dual role in alleviating the barriers of deteriorating spectral resolution at high irradiance, serious matrix effects and elemental fractionation effects at low irradiance. Compared with the conventional laser desorption/ionization (LDI) method, this technique offers unambiguous full-elemental determination of fifteen REEs with more uniform relative sensitivity coefficients (RSCs) ranging from 0...
June 14, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28593034/nanospan-an-alternatively-spliced-isoform-of-sarcospan-localizes-to-the-sarcoplasmic-reticulum-in-skeletal-muscle-and-is-absent-in-limb-girdle-muscular-dystrophy-2f
#10
Angela K Peter, Gaynor Miller, Joana Capote, Marino DiFranco, Alhondra Solares-Pérez, Emily L Wang, Jim Heighway, Ramón M Coral-Vázquez, Julio Vergara, Rachelle H Crosbie-Watson
BACKGROUND: Sarcospan (SSPN) is a transmembrane protein that interacts with the sarcoglycans (SGs) to form a tight subcomplex within the dystrophin-glycoprotein complex that spans the sarcolemma and interacts with laminin in the extracellular matrix. Overexpression of SSPN ameliorates Duchenne muscular dystrophy in murine models. METHODS: Standard cloning approaches were used to identify nanospan, and nanospan-specific polyclonal antibodies were generated and validated...
2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28587652/nanospan-an-alternatively-spliced-isoform-of-sarcospan-localizes-to-the-sarcoplasmic-reticulum-in-skeletal-muscle-and-is-absent-in-limb-girdle-muscular-dystrophy-2f
#11
Angela K Peter, Gaynor Miller, Joana Capote, Marino DiFranco, Alhondra Solares-Pérez, Emily L Wang, Jim Heighway, Ramón M Coral-Vázquez, Julio Vergara, Rachelle H Crosbie-Watson
BACKGROUND: Sarcospan (SSPN) is a transmembrane protein that interacts with the sarcoglycans (SGs) to form a tight subcomplex within the dystrophin-glycoprotein complex that spans the sarcolemma and interacts with laminin in the extracellular matrix. Overexpression of SSPN ameliorates Duchenne muscular dystrophy in murine models. METHODS: Standard cloning approaches were used to identify nanospan, and nanospan-specific polyclonal antibodies were generated and validated...
June 6, 2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28579650/improved-cr-ii-log-gf-values-and-abundance-determinations-in-the-photospheres-of-the-sun-and-metal-poor-star-hd-84937
#12
J E Lawler, C Sneden, G Nave, E A Den Hartog, N Emrahođlu, J J Cowan
New emission branching fraction (BF) measurements for 183 lines of the second spectrum of chromium (Cr II) and new radiative lifetime measurements from laser-induced fluorescence for 8 levels of Cr(+) are reported. The goals of this study are to improve transition probability measurements in Cr II and reconcile solar and stellar Cr abundance values based on Cr I and Cr II lines. Eighteen spectra from three Fourier Transform Spectrometers supplemented with ultraviolet spectra from a high-resolution echelle spectrometer are used in the BF measurements...
January 2017: Astrophysical Journal. Supplement Series
https://www.readbyqxmd.com/read/28574350/characterization-of-kerfless-linear-arrays-based-on-pzt-thick-film
#13
Tomasz Zawada, Louise Bierregaard, Erling Ringgaard, Ruichao Xu, Michele Guizzetti, Franck Levassort, Dominique Certon
Multi-element transducers enabling novel cost-effective fabrication of imaging arrays for medical applications have been presented earlier. Due to the favorable low lateral coupling of the screen-printed PZT, the elements can be defined by the top electrode pattern only, leading to a kerfless design with low cross-talk between the elements. The thick-film based linear arrays have proved to be compatible with a commercial ultrasonic scanner and to support linear array beamforming as well as phased array beamforming...
May 26, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28574039/-peripheral-perfusion-in-cad-patients-with-various-stage-chronic-heart-failure-undergoing-coronary-artery-bypass-grafting
#14
O V Kamenskaia, A S Klinkova, D V Khabarov
Using the orthostatic test, we examined peripheral perfusion by means of laser Doppler flowmetry (LDF) and transcutaneous oximetry in a total of 104 patients presenting with coronary artery disease and functional class II-IV chronic heart failure (CHF) prior to coronary artery bypass grafting (CABG) and in the remote terms thereafter. Volumetric velocity of the microcirculatory blood flow (MCB) of the lower limbs was measured by means of LDF in perfusion units; partial oxygen pressure (TcPO2, mmHg) was registered by means of transcutaneous oximetry...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28572587/electrically-driven-deep-ultraviolet-mgzno-lasers-at-room-temperature
#15
Mohammad Suja, Sunayna Binte Bashar, Bishwajit Debnath, Longxing Su, Wenhao Shi, Roger Lake, Jianlin Liu
Semiconductor lasers in the deep ultraviolet (UV) range have numerous potential applications ranging from water purification and medical diagnosis to high-density data storage and flexible displays. Nevertheless, very little success was achieved in the realization of electrically driven deep UV semiconductor lasers to date. In this paper, we report the fabrication and characterization of deep UV MgZnO semiconductor lasers. These lasers are operated with continuous current mode at room temperature and the shortest wavelength reaches 284 nm...
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28571875/structure-and-flow-calculation-of-cake-layer-on-microfiltration-membranes
#16
Yadong Yu, Zhen Yang, Yuanyuan Duan
Submerged membrane bioreactors (SMBR) are widely used in wastewater treatment. The permeability of a membrane declines rapidly because of the formation of a cake layer on the membrane surface. In this paper, a multiple staining protocol was conducted to probe the four major foulants in the cake layer formed on a filtration membrane. Fluorescent images of the foulants were obtained using a confocal laser scanning microscope (CLSM). The three dimensional structure of the cake layer was reconstructed, and the internal flow was calculated using computational fluid dynamics (CFD)...
June 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28571397/simultaneous-measurement-of-film-thickness-temperature-and-mass-fraction-of-urea-water-solutions-by-multi-wavelength-laser-absorption-spectroscopy
#17
Huinan Yang, Jianwei Shi, Mingxu Su, Wei Wu, Xiaoshu Cai
Quantitative analysis for thickness, temperature, and mass fraction of liquid film is extremely crucial to the relevant industrial processes, but these parameters cannot be determined simultaneously by conventional measurement techniques. In the present work, a novel measurement method based on laser absorption spectroscopy was developed to measure the film temperature, thickness, and mass fraction of urea-water-solutions simultaneously by combining three wavelengths, 1420 nm, 1488 nm, and 1531 nm. Moreover, measurement accuracy of this method was validated by a calibration tool which provided liquid film with known film thickness, temperature, and mass fraction, respectively...
May 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28569866/absolute-noninvasive-measurement-of-co-sub-2-sub-mole-fraction-emitted-by-e-coli-and-s-aureus-using-calibration-free-2f-wms-applied-to-a-2004%C3%A2-%C3%A2-nm-vcsel
#18
A S Zarin, Arup Lal Chakraborty, Abhishek Upadhyay
We report the first demonstration, to the best of our knowledge, of accurate real-time noninvasive measurement of the absolute cumulative mole fraction of metabolic carbon dioxide emitted by Escherichia coli and Staphylococcus aureus over a period of several hours of their life cycles using a recently developed calibration-free wavelength modulation spectroscopy technique. A 1 mW vertical-cavity surface-emitting laser is used to interrogate a single rotational vibrational absorption line of carbon dioxide at 2003...
June 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28560300/striae-gravidarum-risk-factors-prevention-and-management
#19
REVIEW
B Farahnik, K Park, G Kroumpouzos, J Murase
BACKGROUND: Striae gravidarum (SG) are atrophic linear scars that represent one of the most common connective tissue changes during pregnancy. SG can cause emotional and psychological distress for many women. Research on risk factors, prevention, and management of SG has been often inconclusive. METHODS: We conducted a literature search using textbooks, PubMed, and Medline databases to assess research performed on the risk factors, prevention, and management of SG...
June 2017: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28557542/the-efficacy-of-fractional-carbon-dioxide-co2-laser-combined-with-terbinafine-hydrochloride-1-cream-for-the-treatment-of-onychomycosis
#20
Jian Shi, Jin Li, He Huang, Felicia Permatasari, Juan Liu, Yang Xu, Di Wu, Bing-Rong Zhou, Dan Luo
BACKGROUND: Although systemic and topical antifungal agents are widely used to treat onychomycosis, oral medications can cause adverse effects and the efficacy of topical agents is not satisfying. Currently, laser treatment has been studied for its efficacy in the treatment of onychomycosis. Our study was aimed to evaluate the efficacy of fractional carbon dioxide (CO2) laser treatment combined with terbinafine cream for 6 months in the treatment of onychomycosis and to analyze the influencing factors...
May 30, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
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