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https://www.readbyqxmd.com/read/28730318/renal-function-in-neonates-with-twin-twin-transfusion-syndrome-treated-with-or-without-fetoscopic-laser-surgery
#1
Lianne Verbeek, Faiez A Joemmanbaks, Jacoba M E Quak, Ram N Sukhai, Johanna M Middeldorp, Dick Oepkes, Enrico Lopriore
The aim of this study is to investigate the short-term renal function in neonates with twin-twin transfusion syndrome (TTTS), treated with fetoscopic laser surgery (laser group) or conservatively (non-laser group). Creatinine and urea levels and urine output were recorded in the first week after birth. Primary outcome was short-term renal dysfunction, defined as a creatinine level of >100 μmol/L during the first week postpartum. We evaluated 312 twins (laser group, n = 274; non-laser group, n = 38)...
July 20, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28728181/the-value-of-diagnostic-work-up-in-the-evaluation-of-white-dot-syndromes
#2
Neal V Palejwala, Gagan Sawhney, Matthew Raecker, Chrstina J Flaxel, Steven Yeh
BACKGROUND AND OBJECTIVE: To determine the diagnostic yield of systemic work-up in white dot syndromes. PATIENTS AND METHODS: A retrospective chart review. RESULTS: Eighty-six consecutive patients with a diagnosis of a white dot syndrome were identified. Forty-three had a diagnosis of birdshot chorioretinopathy. Overall, 395 diagnostic tests were performed with a diagnostic yield of 11.9%. The test with the greatest diagnostic yield was HLA-A29 typing (89%)...
July 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28717162/ultra-low-threshold-polariton-lasing-at-room-temperature-in-a-gan-membrane-microcavity-with-a-zero-dimensional-trap
#3
R Jayaprakash, F G Kalaitzakis, G Christmann, K Tsagaraki, M Hocevar, B Gayral, E Monroy, N T Pelekanos
Polariton lasers are coherent light sources based on the condensation of exciton-polaritons in semiconductor microcavities, which occurs either in the kinetic or thermodynamic (Bose-Einstein) regime. Besides their fundamental interest, polariton lasers have the potential of extremely low operating thresholds. Here, we demonstrate ultra-low threshold polariton lasing at room temperature, using an all-dielectric, GaN membrane-based microcavity, with a spontaneously-formed zero-dimensional trap. The microcavity is fabricated using an innovative method, which involves photo-electrochemical etching of an InGaN sacrificial layer and allows for the incorporation of optimally-grown GaN active quantum wells inside a cavity with atomically-smooth surfaces...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716393/combine-effect-of-chondroitinase-abc-and-low-level-laser-660nm-on-spinal-cord-injury-model-in-adult-male-rats
#4
Atousa Janzadeh, Arash Sarveazad, Mahmoud Yousefifard, Sima Dameni, Fazel Sahraneshin Samani, Kobra Mokhtarian, Farinaz Nasirinezhad
After spinal cord injury (SCI) there are many recoveries inhibiting factors such as chondroitin sulfate proteoglycan (CSPG) and inflammation. The present study investigated the combinational effect of low level laser therapy (LLLT) as anti-inflammatory agent and Chondroitinase ABC (ChABC) enzyme as CSPG digesting factor on spinal cord after injury. This study performed on 44 male Wistar rats, spinal cord injury induced by a clip compression injury. Animals received two-weeks treatment of 660nm low level laser (LLL) and intraspinal injection of 1μg ChABC...
July 14, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28710660/fractional-er-yag-laser-assisting-topical-betamethasone-solution-in-combination-with-nb-uvb-for-resistant-non-segmental-vitiligo
#5
Ru Yan, Jinping Yuan, Hongqiang Chen, Yuan-Hong Li, Yan Wu, Xing-Hua Gao, Hong-Duo Chen
Resistant non-segmental vitiligo is difficult to be treated. Ablative erbium-YAG (Er:YAG) laser has been used in the treatment of vitiligo, but the ablation of entire epidermis frustrated the compliance of patients. The purpose of this study is to investigate the effects of fractional Er:YAG laser followed by topical betamethasone and narrow band ultraviolet B (NB-UVB) therapy in the treatment of resistant non-segmental vitiligo. The vitiligo lesions of each enrolled patient were divided into four treatment parts, which were all irradiated with NB-UVB...
July 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28704481/renal-auto-transplantation-promotes-cortical-microvascular-network-remodeling-in-a-preclinical-porcine-model
#6
Souleymane Maïga, Geraldine Allain, Thierry Hauet, Jerome Roumy, Edouard Baulier, Michel Scepi, Manuel Dierick, Luc Van Hoorebeke, Patrick Hannaert, Franck Guy, Frederic Favreau
The vascular network is a major target of ischemia-reperfusion, but has been poorly investigated in renal transplantation. The aim of this study was to characterize the remodeling of the renal vascular network that follows ischemia-reperfusion along with the most highly affected cortex section in a preclinical renal transplantation model. There were two experimental groups. The first was a grafted kidney group consisting of large white pigs for which the left kidney was harvested, cold flushed, preserved for 24 h in the University of Wisconsin's preservation solution, and then auto-transplanted (n = 5); the right kidney was removed to mimic the situation of human kidney transplantation...
2017: PloS One
https://www.readbyqxmd.com/read/28699387/low-laser-therapy-a-strategy-to-promote-the-osteogenic-differentiation-of-deciduous-dental-pulp-stem-cells-from-cleft-lip-and-palate-patients
#7
Carla Cristina Gomes Pinheiro, Milena Correa de Pinho, Ana Cecília Corrêa Aranha, Eduardo Fregnani, Daniela Franco Bueno
Dental pulp stem cells (DPSC) can undergo several types of differentiation, including osteogenic differentiation. One osteogenesis-inducing factor that has been previously described is "in vitro" low-level laser irradiation of cells. Laser irradiation promotes the acceleration of bone matrix mineralization of the cell strain. However, no consensus exists regarding the dose and treatment time. We used DPSC strains from cleft lip and palate patients because new bone tissue engineering strategies have used DPSC in preclinical and clinical trials for the rehabilitation of alveolar bone clefts...
July 12, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28698654/megapixel-multi-elemental-imaging-by-laser-induced-breakdown-spectroscopy-a-technology-with-considerable-potential-for-paleoclimate-studies
#8
J O Cáceres, F Pelascini, V Motto-Ros, S Moncayo, F Trichard, G Panczer, A Marín-Roldán, J A Cruz, I Coronado, J Martín-Chivelet
Paleoclimate studies play a crucial role in understanding past and future climates and their environmental impacts. Current methodologies for performing highly sensitive elemental analysis at micrometre spatial resolutions are restricted to the use of complex and/or not easily applied techniques, such as synchrotron radiation X-ray fluorescence micro-analysis (μ-SRXRF), nano secondary ion mass spectrometry (nano-SIMS) or laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Moreover, the analysis of large samples (>few cm²) with any of these methods remains very challenging due to their relatively low acquisition speed (~1-10 Hz), and because they must be operated in vacuum or controlled atmosphere...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28697676/a-comparison-trial-between-three-treatment-modalities-for-the-management-of-myofascial-pain-of-jaw-muscles-a-preliminary-study
#9
Daniele Manfredini, Lorenzo Favero, Francesco Cocilovo, Monica Monici, Luca Guarda-Nardini
OBJECTIVES: To compare three treatment modalities for the management of myofascial pain of jaw muscles. METHODS: Thirty (N = 30) patients with low pain-related impairment were randomly assigned to receive laser therapy (LST), oral appliance therapy (OA), or counseling (CSL). Visual Analog Scale (VAS) pain levels and the Muscular Index (MI) of the Craniomandibular Index were the outcome variables, which were assessed at baseline, at three weeks, three months, and six months...
July 11, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28696734/coherent-transfer-between-low-angular-momentum-and-circular-rydberg-states
#10
A Signoles, E K Dietsche, A Facon, D Grosso, S Haroche, J M Raimond, M Brune, S Gleyzes
We realize a coherent transfer between a laser-accessible low-angular-momentum Rydberg state and the circular Rydberg level with maximal angular momentum. It is induced by a radio frequency field with a high-purity σ^{+} polarization resonant on Stark transitions inside the hydrogenic Rydberg manifold. We observe over a few microseconds more than 20 coherent Rabi oscillations between the initial Rydberg state and the circular level. We characterize these many-Rydberg-level oscillations and find them in perfect agreement with a simple model...
June 23, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28695532/improved-precision-and-accuracy-of-quantification-of-rare-earth-element-abundances-via-medium-resolution-la-icp-ms
#11
Rebecca Funderburg, Ricardo Arevalo, Marek Locmelis, Tomoko Adachi
Laser ablation ICP-MS enables streamlined, high-sensitivity measurements of rare earth element (REE) abundances in geological materials. However, many REE isotope mass stations are plagued by isobaric interferences, particularly from diatomic oxides and argides. In this study, we compare REE abundances quantitated from mass spectra collected with low-resolution (m/Δm = 300 at 5% peak height) and medium-resolution (m/Δm = 2500) mass discrimination. A wide array of geological samples was analyzed, including USGS and NIST glasses ranging from mafic to felsic in composition, with NIST 610 employed as the bracketing calibrating reference material...
July 10, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28691417/effect-of-endovascular-coronary-low-level-laser-therapy-during-angioplasty-on-the-release-of-endothelin-1-and-nitric-oxide
#12
Arkadiusz Derkacz, Alicja Szymczyszyn, Ewa Szahidewicz-Krupska, Marcin Protasiewicz, Rafał Poręba, Adrian Doroszko
BACKGROUND: NO and endothelin-1 are potentially significant factors contributing to the pathogenesis of post-angioplasty restenosis. It may be postulated that LLLT can favourably influence the process of restenosis by affecting those factors. OBJECTIVES: The aim of the study was to evaluate the effect of low-level laser therapy (LLLT) applied during percutaneous coronary intervention (PCI) on the factors participating in the homeostasis of vascular tone - nitric oxide (NO) and endothelin-1...
June 27, 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28690083/analgesic-effects-of-preinjection-low-level-laser-light-therapy-lllt-before-third-molar-surgery-a-double-blind-randomized-controlled-trial
#13
Jacco G C Tuk, Arjen J van Wijk, Ine C Mertens, Zühal Keleş, Jérôme A H Lindeboom, Dan M J Milstein
OBJECTIVE: The aim of this study was to evaluate the analgesic effects of low-level laser therapy (LLLT) on preinjection sites in patients scheduled for third molar removal. STUDY DESIGN: This double-blind randomized controlled trial included 163 healthy patients undergoing third molar extractions. The study participants were randomly divided into an LLLT and a placebo group. Objective and subjective data sets were obtained from physiologic feedback (heart rate and sweat response) and a questionnaire, respectively...
May 4, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28689114/shape-anisotropy-enhanced-optomagnetic-measurement-for-prostate-specific-antigen-detection-via-magnetic-chain-formation
#14
Bo Tian, Erik Wetterskog, Zhen Qiu, Teresa Zardán Gómez de la Torre, Marco Donolato, Mikkel Fougt Hansen, Peter Svedlindh, Mattias Strömberg
We demonstrate a homogeneous biosensor for the detection of multivalent targets by combination of magnetic nanoparticle (MNP) chains and a low-cost 405nm laser-based optomagnetic system. The MNP chains are assembled in a rotating magnetic field and stabilized by multivalent target molecules. The number of chains remaining in zero field is proportional to the target concentration, and can be quantified by optomagnetic measurements. The shape anisotropy of the MNP chains enhances the biosensor system in terms of providing efficient mixing, reduction of depletion effects (via magnetic shape anisotropy), and directly increasing the optomagnetic signal (via optical shape anisotropy)...
June 30, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28688752/comparison-of-effects-of-lllt-and-lipus-on-fracture-healing-in-animal-models-and-patients-a-systematic-review
#15
REVIEW
Mohammad Bayat, Amarjit Virdi, Reza Jalalifirouzkouhi, Fatemehalsadat Rezaei
The aim of this paper is to study the in vivo potency of low-level laser therapy (LLLT) and low intensity pulsed ultrasound (LIPUS) alone, accompanied by bone grafts, or accompanied by other factors on fracture healing in animal models and patients. In this paper, we aim to systematically review the published scientific literature regarding the use of LLLT and LIPUS to accelerate fracture healing in animal models and patients. We searched the PubMed database for the terms LLLT or LIPUS and/or bone, and fracture...
July 5, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28688677/long-term-survival-of-a-randomized-phase-iii-trial-of-head-and-neck-cancer-patients-receiving-concurrent-chemoradiation-therapy-with-or-without-low-level-laser-therapy-lllt-to-prevent-oral-mucositis
#16
Héliton S Antunes, Daniel Herchenhorn, Isabele A Small, Carlos M M Araújo, Celia Maria Pais Viégas, Gabriela de Assis Ramos, Fernando L Dias, Carlos G Ferreira
BACKGROUND: The impact of low-level laser therapy (LLLT) to prevent oral mucositis in patients treated with exclusive chemoradiation therapy remains unknown. This study evaluated the overall, disease-free and progression-free survival of these patients. METHODS: Overall, disease-free and progression-free survival of 94 patients diagnosed with oropharynx, nasopharynx, and hypopharynx cancer, who participated on a phase III study, was evaluated from 2007 to 2015. The patients were subjected to conventional radiotherapy plus cisplatin every 3weeks...
August 2017: Oral Oncology
https://www.readbyqxmd.com/read/28685975/lasing-transition-at-1-06%C3%A2-%C3%AE-m-emission-in-nd-3-doped-borate-based-tellurium-calcium-zinc-niobium-oxide-glasses-for-high-power-solid-state-lasers
#17
O Ravi, K Prasad, Rajiv Jain, M Venkataswamy, Shivanand Chaurasia, B Deva Prasad Raju
The spectroscopic properties of Tellurium Calcium Zinc Niobium oxide Borate (TCZNB) glasses of composition (in mol%) 10TeO2  + 15CaO + 5ZnO + 10 Nb2 O5  + (60 - x)B2 O3  + Nd2 O3 (x = 0.1, 0.5, 1.0 or 1.5 mol%) have been investigated experimentally. The three phenomenological intensity parameters Ω2 , Ω4, Ω6 have been calculated using the Judd-Ofelt theory and in turn radiative properties such as radiative transition probabilities, emission cross-sections, branching ratios and radiative lifetimes have been estimated...
August 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28685473/quantitative-biology-of-exercise-induced-signal-transduction-pathways
#18
Timon Cheng-Yi Liu, Gang Liu, Shao-Juan Hu, Ling Zhu, Xiang-Bo Yang, Quan-Guang Zhang
Exercise is essential in regulating energy metabolism. Exercise activates cellular, molecular, and biochemical pathways with regulatory roles in training response adaptation. Among them, endurance/strength training of an individual has been shown to activate its respective signal transduction pathways in skeletal muscle. This was further studied from the viewpoint of quantitative difference (QD). For the mean values, [Formula: see text], of two sets of data, their QD is defined as [Formula: see text] ([Formula: see text])...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28685444/improving-retinal-image-quality-using-registration-with-an-sift-algorithm-in-quasi-confocal-line-scanning-ophthalmoscope
#19
Yi He, Yuanyuan Wang, Ling Wei, Xiqi Li, Jinsheng Yang, Yudong Zhang
When high-magnification images are taken with a quasi-confocal line scanning ophthalmoscope (LSO), the quality of images always suffers from Gaussian noise, and the signal to noise ratio (SNR) is very low for a safer laser illumination. In addition, motions of the retina severely affect the stabilization of the real-time video resulting in significant distortions or warped images. We describe a scale-invariant feature transform (SIFT) algorithm to automatically abstract corner points with subpixel resolution and match these points in sequential images using an affine transformation...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28683525/rapid-identification-of-vibrio-species-isolated-from-the-southern-coastal-regions-of-korea-by-maldi-tof-mass-spectrometry-and-comparison-of-maldi-sample-preparation-methods
#20
Youngjae Cho, Eiseul Kim, Sun-Kyung Han, Seung-Min Yang, Mi-Ju Kim, Hyun-Joong Kim, Chang-Gyeom Kim, Dong-Won Choo, Young-Rok Kim, Hae-Yeong Kim
Vibrio species are generally recognized as pathogens predominant in seafood along coastal areas. The food industry has sought to develop efficient microbial detection methods. Due to the limits of conventional methods, this study aimed to establish a rapid identification method for Vibrio isolated from Korea, based on matrix-assisted laser-desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Four different preparation procedures were compared to determine the appropriate means to pre-treat Vibrio species, using 17 isolates and five reference strains...
July 7, 2017: Journal of Microbiology and Biotechnology
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