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Ágnes Bán, Zsolt Ferenc Németh, Adrienn Szauter, Szilvia Soós, Márta Balaskó
INTRODUCTION: Chronic parodontitis is a prevalent oral disease that may lead to the loss of teeth independently of caries. Some systemic diseases (e.g., diabetes mellitus, chronic renal failure) may aggravate chronic parodontitis. On the other hand, this oral disease may aggravate other systemic diseases. Earlier studies suggested a correlation between chronic parodontitis and very severe chronic obstructive pulmonary disease (COPD). AIM: The aim of our study was the investigation of the correlation between chronic parodontitis and chronic obstructive pulmonary disease...
May 2018: Orvosi Hetilap
Marcio Matsumoto, Eva M Flores, Pedro P Kimachi, Flavia V Gouveia, Mayra A Kuroki, Alfredo C S D Barros, Marcelo M C Sampaio, Felipe E M Andrade, João Valverde, Eduardo F Abrantes, Claudia M Simões, Rosana L Pagano, Raquel C R Martinez
Surgery is the first-line treatment for early, localized, or operable breast cancer. Regional anesthesia during mastectomy may offer the prevention of postoperative pain. One potential protocol is the combination of serratus anterior plane block (SAM block) with pectoral nerve block I (PECS I), but the results and potential benefits are limited. Our study compared general anesthesia with or without SAM block + PECS I during radical mastectomy with axillary node dissection and breast reconstruction using evaluations of pain, opioid consumption, side effects and serum levels of interleukin (IL)-1beta, IL-6 and IL-10...
May 18, 2018: Scientific Reports
Shuzhen Lv, Kangyao Zhang, Yongyi Zeng, Dianping Tang
A new double photosystems-based 'Z-scheme' photoelectrochemical (PEC) sensing platform is designed for ultrasensitive detection of prostate-specific antigen (PSA) by coupling with three-dimensional (3D) DNA walker. Two photosystems consist of CdS quantum dots (photosystem I; PS I) and BiVO4 photoactive materials (photosystem II; PS II), whereas gold nanoparticles (AuNPs) photodeposited on high-active {010} facets of BiVO4 are used as the electron mediators to promote electron transfer from conduction band (CB) of PS II to valence band (VB) of PS I...
May 18, 2018: Analytical Chemistry
Emanuele Piraccini, Giulia Biondi, Helen Byrne, Morena Calli, Daniele Bellantonio, Giovanni Musetti, Stefano Maitan
INTRODUCTION: Pectoral Nerves Block (PECS) and Serratus Plane Block (SPB) have been used to treat persistent post-surgical pain after breast and thoracic surgery, however they cannot block the internal mammary region, so a residual pain may occur in that region. Parasternal block (PSB) and Thoracic Transversus Plane Block (TTP) anesthetize the anterior branches of T2-6 intercostal nerves thus they can provide analgesia to the internal mammary region. METHODS: We describe a 60-year-old man suffering from right post thoracotomy pain syndrome with residual pain located in the internal mammary region after a successful treatment with PECS and SPB We performed a PSB and TTP and hydrodissection of fascial planes with triamcinolone and Ropivacaine...
May 16, 2018: European Journal of Pain: EJP
Feng Li, Jing Li, Jie Zhang, Lili Gao, Xuefeng Long, Yiping Hu, Shuwen Li, Jun Jin, Jiantai Ma
The photoelectrochemical (PEC) water splitting efficiency of hematite-based photoanode is still far from the theoretical value due to its poor surface reaction kinetics and high density of surface trapping states. To solve these drawbacks, a photoanode consisting of NiO nanoparticles anchored on a gradient P-doped α-Fe2O3 nanorod (NR) array (NiO/P-α-Fe2O3) was fabricated to achieve optimal light absorption and charge separation, and rapid surface reaction kinetic. Specifically, the photoanode with the NR arrays structure allowed high mass transport rate to be achieved while the P-doping effectively decreased surface trapping sites and improved the electrical conductivity of α-Fe2O3...
May 16, 2018: ChemSusChem
Christopher P Muzzillo, W Ellis Klein, Zhen Li, Alexander Daniel DeAngelis, Kimberly Horsley, Kai Zhu, Nicolas Gaillard
Photoelectrochemical (PEC) water-splitting is an elegant method of converting sunlight and water into H2 fuel. To be commercially advantageous, PEC devices must become cheaper, more efficient and much more durable. This work examines low-cost polycrystalline chalcopyrite films, which are successful as photovoltaic absorbers, for application as PEC absorbers. In particular, Cu-Ga-Se films with wide band gaps can be employed as top cell photocathodes in tandem devices as a realistic route to high efficiencies...
May 16, 2018: ACS Applied Materials & Interfaces
Andrey Goryachev, Lu Gao, René P J van Veldhoven, Jos E M Haverkort, Jan P Hofmann, Emiel J M Hensen
III-V semiconductors such as InP are highly efficient light absorbers for photoelectrochemical (PEC) water splitting devices. Yet, their cathodic stability is limited due to photocorrosion and the measured photocurrents do not necessarily originate from H2 evolution only. We evaluated the PEC stability and activation of model p-InP(100) photocathodes upon photoelectrochemical passivation (i.e. repeated surface oxidation/reduction). The electrode was subjected to a sequence of linear potential scans with or without intermittent passivation steps (repeated passivation and continuous reduction, respectively)...
May 15, 2018: Physical Chemistry Chemical Physics: PCCP
Hanlin Chen, Yen-Ping Peng, Ting-Yu Chen, Ku-Fan Chen, Ken-Lin Chang, Zhi Dang, Gui-Ning Lu, Hongping He
This study employed BiOI-deposited TiO2 nanotube arrays (BiOI-TNTAs) electrode in a photoelectrochemical (PEC) system to oxidize Ibuprofen and generate hydrogen in the anodic and cathodic chamber, respectively. FESEM results revealed the diameter of TiO2 nanotubes was 90-110nm. According to the XRD analysis, the BiOI-TNTAs were dominated by the anatase phase and tetragonal structure of BiOI. XPS results confirmed the coexistence of BiOI in the BiOI-TNTAs associated with Bi (33.76%) and I (8.81%). UV-vis absorption spectra illustrated BiOI-TNTAs exhibit strong absorptions in the visible light region...
August 15, 2018: Science of the Total Environment
Renata Thaís de Almeida Barbosa, Acary Souza Bulle de Oliveira, Jennifer Yohanna Ferreira de Lima Antão, Tânia Brusque Crocetta, Regiani Guarnieri, Thaiany Pedrozo Campos Antunes, Claudia Arab, Thaís Massetti, Italla Maria Pinheiro Bezerra, Carlos Bandeira de Mello Monteiro, Luiz Carlos de Abreu
BACKGROUND: The use of technology to assist in the communication, socialization, language, and motor skills of children with Down's syndrome (DS) is required. The aim of this study was to analyse research findings regarding the different instruments of 'augmentative and alternative communication' used in children with Down's syndrome. METHODS: This is a systematic review of published articles available on PubMed, Web of Science, PsycInfo, and BVS using the following descriptors: assistive technology AND syndrome, assistive technology AND down syndrome, down syndrome AND augmentative and alternative communication...
May 11, 2018: BMC Pediatrics
Chengcheng Li, Zhibin Luo, Tuo Wang, Jinlong Gong
Collecting and storing solar energy to hydrogen fuel through a photo-electrochemical (PEC) cell provides a clean and renewable pathway for future energy demands. Having earth-abundance, low biotoxicity, robustness, and an ideal n-type band position, hematite (α-Fe2 O3 ), the most common natural form of iron oxide, has occupied the research hotspot for decades. Here, a close look into recent progress of hematite photoanodes for PEC water splitting is provided. Effective approaches are introduced, such as cocatalysts loading and surface passivation layer deposition, to improve the hematite surface reaction in thermodynamics and kinetics...
May 11, 2018: Advanced Materials
Shaivee Borker, Varsha Pokharkar
In this study, we have reported the fabrication and evaluation of pectin-capped gold nanoparticles (PEC-AuNPs) for delivery of anticancer drug, doxorubicin (DOX) to cells overexpressing asialoglycoprotein receptor (ASGPR). Pectin was used as a reducing, stabilizing and targeting agent. The pectin-capped gold nanoparticles demonstrated surface plasmon resonance band at 519 nm. The PEC-AuNPs were spherical in shape with a particle size of 14 nm and zeta potential value of -33 mV and were biocompatible and non-cytotoxic...
May 11, 2018: Artificial Cells, Nanomedicine, and Biotechnology
Zhenguang Li, Ronnie Mogensen, Jonas Mindemark, Tim Bowden, Daniel Brandell, Yoichi Tominaga
Electrolytes comprising poly(ethylene carbonate) (PEC)/poly(trimethylene carbonate) (PTM C) with lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) are prepared by a simple solvent casting method. Although PEC and PTMC have similar chemical structures, they are immiscible and two glass transitions are present in the differential scanning calorimetry (DSC) measurements. Interestingly, these two polymers change to miscible blends with the addition of LiTFSI, and the ionic conductivity increases with increasing lithium salt concentration...
May 11, 2018: Macromolecular Rapid Communications
Xiujuan Lei, Ming Fang, Fang-Xiang Wu, Luonan Chen
BACKGROUND: Essential proteins are necessary for the survival and development of cells. The identification of essential proteins can help to understand the minimal requirements for cellular life and it also plays an important role in the disease genes study and drug design. With the development of high-throughput techniques, a large amount of protein-protein interactions data is available to predict essential proteins at the network level. Hitherto, even though a number of essential protein discovery methods have been proposed, the prediction precision still needs to be improved...
April 24, 2018: BMC Systems Biology
Maxime Parisotto, Elise Grelet, Rana El Bizri, Yongyuan Dai, Julie Terzic, Doriane Eckert, Laetitia Gargowitsch, Jean-Marc Bornert, Daniel Metzger
Genetic ablation of the tumor suppressor PTEN in prostatic epithelial cells (PECs) induces cell senescence. However, unlike oncogene-induced senescence, no hyperproliferation phase and no signs of DNA damage response (DDR) were observed in PTEN -deficient PECs; PTEN loss-induced senescence (PICS) was reported to be a novel type of cellular senescence. Our study reveals that PTEN ablation in prostatic luminal epithelial cells of adult mice stimulates PEC proliferation, followed by a progressive growth arrest with characteristics of cell senescence...
May 9, 2018: Journal of Experimental Medicine
Gabriel Farkas, Garret Weber, Jonathon Miller, Jeff Xu
The PECS II nerve block is a relatively new regional anesthetic technique that targets the medial and lateral pectoral nerves, as well as the lateral cutaneous branches of the intercostal nerves. It has been described for surgical cases involving the breast, as an adjunct or alternative to neuraxial or paravertebral techniques. This case report describes the first successful use of the PECS II nerve block placed using ultrasound guidance as the primary anesthetic and postoperative analgesic in a non-breast-related chest wall surgery...
May 7, 2018: A&A practice
Changli Li, Qi Cao, Faze Wang, Yequan Xiao, Yanbo Li, Jean-Jacques Delaunay, Hongwei Zhu
Graphene and two-dimensional (2D) transition metal dichalcogenides (TMDs) have attracted significant interest due to their unique properties that cannot be obtained in their bulk counterparts. These atomically thin 2D materials have demonstrated strong light-matter interactions, tunable optical bandgap structures and unique structural and electrical properties, rendering possible the high conversion efficiency of solar energy with a minimal amount of active absorber material. The isolated 2D monolayer can be stacked into arbitrary van der Waals (vdWs) heterostructures without the need to consider lattice matching...
May 8, 2018: Chemical Society Reviews
Nathalie Lécrivain, Vincent Aurenche, Nathalie Cottin, Victor Frossard, Bernard Clément
The lake littoral sediment is exposed to a large array of contaminants that can exhibit significant spatial variability and challenge our ability to assess contamination at lake scale. In this study, littoral sediment contamination was characterized among ten different sites in a large peri-alpine lake (Lake Bourget) regarding three groups of contaminants: 6 heavy metals, 15 polycyclic aromatic hydrocarbons and 7 polychlorinated biphenyls. The contamination profiles significantly varied among sites and differed from those previously reported for the deepest zone of the lake...
April 1, 2018: Science of the Total Environment
Vediyappan Veeramani, Hsin-Chin Yu, Shu-Fen Hu, Ru-Shi Liu
The initiation of hydrogen energy production from sunlight through photoelectrochemical (PEC) system is an important strategy for resolving contemporary issues in energy requirement. Although precious Pt and other noble metals offer a desirable catalytic activity for this method, earth-abundant nonprecious metal catalysts must be developed for wide-scale application. In this regard, P-type silicon (P-Si) micro-pyramids (Si MPs) are a favorable photocathode because of their effective light-conversion properties and appropriate band gap position...
May 4, 2018: ACS Applied Materials & Interfaces
Yoshitaka Sanehira, Youhei Numata, Masashi Ikegami, Tsutomu Miyasaka
Highly crystalline TiO2 nanostructured films were synthesized by simple steam treatment of a TiCl4 precursor film under saturated water vapor atmosphere at 125 °C, here referred to as the steam-annealing method. In a single TiO2 film preparation step, a bilayer structure comprising a compact bottom layer and a mesoporous surface layer was formed. The mesoporous layer was occupied by bipyramidal nanoparticles, with a composite phase of anatase and brookite crystals. Despite the low-temperature treatment process, the crystallinity of the TiO2 film was high, comparable with that of the TiO2 film sintered at 500 °C...
May 4, 2018: ACS Applied Materials & Interfaces
Erika Balogh, Nóra Faubl, Henna Riemenschneider, Péter Balázs, Antje Bergmann, Károly Cseh, Ferenc Horváth, Jörg Schelling, András Terebessy, Zoltán Wagner, Karen Voigt, Zsuzsanna Füzesi, István Kiss
BACKGROUND: Tobacco use is the leading preventable cause of death worldwide. Besides cigarette smoking, waterpipe and e-cigarettes are gaining popularity among young adults. Medical students' smoking behavior is of particular interest because of their impending role in health promotion as future physicians. Aim of our study is to examine the prevalence and predictors of cigarette, waterpipe and e-cigarette use and the association of tobacco use with self-reported health status in an international sample of medical students...
May 3, 2018: BMC Public Health
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