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https://www.readbyqxmd.com/read/29148618/interest-in-tanning-beds-and-sunscreen-in-german-speaking-countries
#1
Michael C Kirchberger, Laura F Kirchberger, Thomas K Eigentler, Raphael Reinhard, Carola Berking, Gerold Schuler, Lucie Heinzerling, Markus V Heppt
BACKGROUND: The growing incidence of nearly all types of skin cancer can be attributed to increased exposure to natural or artificial ultraviolet (UV) radiation. However, there is a scarcity of statistical data on risk behavior or sunscreen use, which would be important for any prevention efforts. METHODS: Using the search engine Google(®) , we analyzed search patterns for the terms Solarium (tanning bed), Sonnencreme (sunscreen), and Sonnenschutz (sun protection) in Germany, Austria, and Switzerland between 2004 and 2016, and compared it to search patterns worldwide...
November 17, 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/29147456/prevalence-of-sun-protection-at-outdoor-recreation-and-leisure-venues-at-resorts-in-north-america
#2
Barbara J Walkosz, Michael D Scott, David B Buller, Peter A Andersen, Larry Beck, Gary R Cutter
Background: Exposure to solar ultra violet radiation (UVR) is a primary risk factor for skin cancer. Vacationers often fail to protect themselves from harmful UVR. Purpose: The study assessed the sun protection practices of resort guests in various outdoor leisure and recreation venues during warm-weather seasons. Method: 41 North American resorts were enrolled in a quasi-experimental randomized controlled trial. Adult guests were observed (n=4091) and surveyed (n=3694) in a cross sectional sample...
2017: American Journal of Health Education
https://www.readbyqxmd.com/read/29146529/inhibitory-effect-of-the-extract-of-rhizome-of-curcuma-longa-l-in-gelatinase-activity-and-its-effect-on-human-skin
#3
Keiko Muta, Shinji Inomata, Tadao Fukuhara, Junko Nomura, Toshio Nishiyama, Yoh-Ichi Tagawa, Satoshi Amano
Exposure to UV radiation to human skin up-regulates the synthesis of matrix metalloproteinase (MMP) family. Gelatinases are member of MMPs which have been suggested to play an important role in photoaging such as wrinkle formation. To inhibit gelatinase activity is regarded to be very important to keep healthy skin and to protect wrinkle formation. On the other hand, anti-photoaging agents are expected to be derived from natural resources, especially plants. Plant extracts having gelatinase-inhibitory effect that might be used as safe anti-photoaging ingredient were widely screened...
November 13, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/29144444/benthic-habitat-mapping-using-multispectral-high-resolution-imagery-evaluation-of-shallow-water-atmospheric-correction-techniques
#4
Francisco Eugenio, Javier Marcello, Javier Martin, Dionisio Rodríguez-Esparragón
Remote multispectral data can provide valuable information for monitoring coastal water ecosystems. Specifically, high-resolution satellite-based imaging systems, as WorldView-2 (WV-2), can generate information at spatial scales needed to implement conservation actions for protected littoral zones. However, coastal water-leaving radiance arriving at the space-based sensor is often small as compared to reflected radiance. In this work, complex approaches, which usually use an accurate radiative transfer code to correct the atmospheric effects, such as FLAASH, ATCOR and 6S, have been implemented for high-resolution imagery...
November 16, 2017: Sensors
https://www.readbyqxmd.com/read/29144017/a-new-and-important-relationship-between-mirna-147a-and-pdpk1-in-radiotherapy
#5
Li-Juan Wang, Na-Na Li, Sai-Juan Xu, Fan Zhang, Ming-Hua Hao, Xian-Jun Yang, Xin-Hua Cai, Pei-Yong Qiu, Hong-Long Ji, Ping Xu
It was found that the expression level of miR-147a was significantly increased and the pathway of PI3K/AKT was dramatically inhibited after radiation. In view of the relationship between miRNA and target genes, we put forward the question, what is the relationship between PI3K /AKT and miR-147a? In order to find the answer to the question, we used bioinformatics techniques to analyze the relationship between miR-147 (a or b) and PI3K/AKT signaling pathway. miR-147a overexpression plasmid and PDPK1 3'UTR luciferase reporter gene plasmid were constructed...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29143415/severe-bk-polyomavirus-induced-hemorrhagic-cystitis-in-a-kidney-transplant-recipient-with-absence-of-renal-allograft-involvement
#6
Mahwash Kamal, Amit Govil, Manish Anand, Bassam G Abu Jawdeh, Silvi Shah
BK polyomavirus mostly manifests as polyomavirus-associated nephropathy (PyVAN) in kidney transplant patients and polyoma virus-associated hemorrhagic cystitis (PyVHC) in bone marrow transplant patients. PyVHC in kidney transplant patients is only reported in four cases in the literature. Our patient had severe hemorrhagic cystitis without renal involvement. We postulate that our patient's exposure to ifosfamide and radiation 8 years prior transplantation might pre-dispose him to this disease. This article is protected by copyright...
November 16, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29143352/assessment-of-exposure-to-radio-frequency-electromagnetic-fields-from-smart-utility-meters-in-gb-part-ii-numerical-assessment-of-induced-sar-within-the-human-body
#7
Muhammad R A Qureshi, Yasir Alfadhl, Xiaodong Chen, Azadeh Peyman, Myron Maslanyj, Simon Mann
Human body exposure to radiofrequency electromagnetic waves emitted from smart meters was assessed using various exposure configurations. Specific energy absorption rate distributions were determined using three anatomically realistic human models. Each model was assigned with age- and frequency-dependent dielectric properties representing a collection of age groups. Generalized exposure conditions involving standing and sleeping postures were assessed for a home area network operating at 868 and 2,450 MHz...
November 16, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/29143326/lncrna-rp11-670e13-6-regulates-cell-cycle-progression-in-uvb-damaged-human-dermal-fibroblasts
#8
Mengna Li, Li Li, Xiaofeng Zhang, Yan Yan, Baoxi Wang
Long noncoding RNAs (lncRNAs) have gained extensive attention in recent years, however, their effects on ultraviolet (UV) radiation-induced skin photodamage remain to be elucidated. In this study, we performed high-throughput RNA sequencing and comprehensive bioinformatics analyses to characterize the transcriptome profiles including lncRNAs and mRNAs in UVB-irradiated primary human dermal fibroblasts (HDFs) and to explore the roles of lncRNAs in photoaging. Quantitative reverse transcription-polymerase chain reaction amplification was performed to verify the differentially expressed genes...
November 16, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29142345/in-vitro-protective-effect-of-rutin-and-quercetin-against-radiation-induced-genetic-damage-in-human-lymphocytes
#9
Shrikant L Patil, K Swaroop, Nilesh Kakde, H M Somashekarappa
Purpose of the Study: Rutin (RUT) and quercetin (QRT) which are dietary compounds were investigated for their ability to protect against ionizing radiation (IR)-induced genotoxicity in human lymphocytes. Materials and Methods: The radiation antagonistic potential of RUT and QRT was assessed by alkaline comet and cytokinesis-block micronucleus (CBMN) assay. Results: Treatment of lymphocytes with RUT and QRT (25 μg/ml) prior exposure to 2 Gy gamma radiation resulted in a significant reduction of frequency of micronuclei as compared to the control set of cells evaluated by CBMN assay...
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29141658/thioredoxin-mitigates-radiation-induced-hematopoietic-stem-cell-injury-in-mice
#10
Pasupathi Sundaramoorthy, Qinhong Wang, Zhihong Zheng, Yiqun Jiao, Benny J Chen, Phuong L Doan, Nelson J Chao, Yubin Kang
BACKGROUND: Radiation exposure poses a significant threat to public health. Hematopoietic injury is one of the major manifestations of acute radiation sickness. Protection and/or mitigation of hematopoietic stem cells (HSCs) from radiation injury is an important goal in the development of medical countermeasure agents (MCM). We recently identified thioredoxin (TXN) as a novel molecule that has marked protective and proliferative effects on HSCs. In the current study, we investigated the effectiveness of TXN in rescuing mice from a lethal dose of total body radiation (TBI) and in enhancing hematopoietic reconstitution following a lethal dose of irradiation...
November 15, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29141565/radio-modulatory-potential-ofcaffeic-acid-phenethyl-ester-a-therapeutic-perspective
#11
Km Anjaly, Ashu Tiku
Use of natural agents is an upcoming area of research in cancer biology. Caffeic acid phenethyl ester has received great attention because of its therapeutic potential in various conditions including cancer. It is an active/abundant component of propolis. Propolis is a honey bee hive product produced by bees using their enzyme-rich digestive secretions on resinous mix, bee wax and pollen from plants. It is used to protect the beehive against bacteria and other infections.Although a lot of work has been done on chemotherapeutic aspects of CAPE, its role as a radiomodulator is yet to be delineated...
November 13, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29140797/characterising-endourologist-learning-curve-during-percutaneous-nephrolithotomy-implications-on-occupational-dose-and-patients
#12
Jacobo Guiu-Souto, Carlos Otero, Daniel A Pérez-Fentes, Carlos Fernández-Baltar, Juan Francisco Sánchez-Garcia, Camilo García-Freire, Miguel Pombar-Cameán, Juan Pardo-Montero
In this study we have characterised the learning curve for percutaneous nephrolithotomy procedures over 301 cases for six years. Different surrogate parameters of clinical expertise have been used, such as dose area product, total procedure time, fluoroscopy time and personal equivalent doses. In addition, two different endourologists have been monitored; one of whom had specific Radiation Protection training (ICRP 85). Eye lens dose was estimated from thermoluminescent dosimeters. Significant differences were observed between both endourologists, especially in the fluoroscopy time...
November 15, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29140505/the-nrpi-multi-purpose-on-line-monitoring-station-for-measurement-of-natural-radioactivity-in-the-ambient-atmosphere-and-in-the-soil
#13
K Jílek, M Slezáková, A Fronka, T Prokop, L Neubauer
During years 2010-12 an automated, on-line and wireless outdoor measurement station of atmospheric radon, gamma dose rate and meteorological parameters was realised at the National Radiation Protection Institute (NRPI) in Prague. At the turn of the year 2013 an expansion of the existing station was completed. Under the project funded by the Czech Technological Agency a new updated station was established, additionally equipped with modules for measurement of atmospheric radon/thoron short-lived decay products, radon in water and soil and radon exhalation rate from soil...
November 13, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29137426/therapeutic-implications-of-tumor-free-margins-in-head-and-neck-squamous-cell-carcinoma
#14
Clara Backes, Henning Bier, Andreas Knopf
Objectives: The resection status is one of the most important prognostic factors for patients with head and neck squamous cell carcinoma (HNSCC) concerning overall survival (OS) and recurrence free interval (RFI). To assess whether therapy concepts changed depending on different resection margins and extracapsular extension, OS and RFI data were set into clinical context. Methods: All HNSCC patients who underwent head and neck surgery with/without adjuvant therapy (n=534) were selected over a ten-year period (2001-2011)...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136596/occurrence-of-organic-uv-filters-and-metabolites-in-lebranche-mullet-mugil-liza-from-brazil
#15
Daniel Molins-Delgado, Ramón Muñoz, Sylvia Nogueira, Mariana B Alonso, João Paulo Torres, Olaf Malm, Roberta Lourenço Ziolli, Rachel Ann Hauser-Davis, Ethel Eljarrat, Damià Barceló, M Silvia Díaz-Cruz
UV filters (UV-Fs) constitute a heterogeneous group of chemicals used as protection against the effects of UV radiation, widely used in all sort of goods and ubiquitous in the environment. The presence of these chemicals in fish is a matter of concern, because many UV-Fs display hormonal activity. In this study, muscle, gills, and liver from 11 Mugil liza individuals from the highly urbanized Guanabara Bay (Rio de Janeiro, Brazil) were analysed in order to detect eight UV-Fs and metabolites (4-dihydroxybenzophenone [BP1] (2-hydroxy-4-methoxybenzophenone [BP3], 4-methylbenzylidiene camphor [4MBC], ethylhexyl methoxycinnamate [EHMC], ethylhexyl dimethyl p-aminobenzoic acid [ODPABA], octocrylene [OC], 4-hydroxybenzophenone [4HB], and 4,4'-dihydroxybenzophenone [4DHB]) using liquid chromatography-tandem mass spectrometry (HPLC-MS/MS)...
November 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29136392/rescue-effect-inherited-in-colony-formation-assays-affects-radiation-response
#16
Gabriel Adrian, Crister Ceberg, Ana Carneiro, Lars Ekblad
It is well known that nonirradiated cells can exhibit radiation damage (bystander effect), and recent findings have shown that nonirradiated cells may help protect irradiated cells (rescue effect). These findings call into question the traditional view of radiation response: cells cannot be envisioned as isolated units. Here, we investigated traditional colony formation assays to determine if they also comprise cellular communication affecting the radiation response, using colony formation assays with varying numbers of cells, modulated beam irradiation and media transfer...
November 14, 2017: Radiation Research
https://www.readbyqxmd.com/read/29136287/quantification-of-mri-visibility-and-artefacts-at-3t-of-liquid-fiducial-marker-in-a-pancreas-tissue-mimicking-phantom
#17
Sergej Schneider, Rasmus Irming Jølck, Esther Gera Cornelia Troost, Aswin Louis Hoffmann
PURPOSE: X-ray based position verification of the target volume in image-guided radiation therapy (IGRT) of patients with pancreatic ductal adenocarcinoma (PDAC) is currently performed on solid fiducial markers that are implanted under endoscopic ultrasonography. A new biodegradable liquid fiducial marker has recently been introduced. To assess its potential use for magnetic resonance imaging (MRI) guided photon or proton radiotherapy of PDAC, the MRI visibility and artefacts of this marker were quantified and compared against solid gold markers...
November 14, 2017: Medical Physics
https://www.readbyqxmd.com/read/29136266/prostanoids-and-hair-follicles-implications-for-therapy-of-hair-disorders
#18
Xue-Gang Xu, Hong-Duo Chen
Prostanoids, including prostaglandins (PGs) and thromboxane A2 (TXA2), are a family of lipid-derived autacoids that modulate many physiological systems and pathological contexts. Prostanoids are generated by sequential metabolism of arachidonic acid, catalysed by cyclo-oxygenase, to PGH2, which is then converted to PGD2, PGE2, PGF2α, PGI2 and TXA2, catalysed by their specific synthases. Recent evidence suggests that prostanoids play a role in regulating hair growth. The PGF2α analogue is Food and Drug Administration-approved and routinely used to enhance the growth of human eyelashes...
November 14, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29136248/determination-of-national-diagnostic-reference-levels-in-computed-tomography-examinations-of-iran-by-a-new-quality-control-based-dose-survey-method
#19
Mehdi Sohrabi, Masoumeh Parsi, Fereidoun Mianji
National diagnostic reference levels (NDRLs) of Iran were determined for the four most common CT examinations including head, sinus, chest and abdomen/pelvis. A new 'quality control (QC)-based dose survey method', as developed by us, was applied to 157 CT scanners in Iran (2014-15) with different slice classes, models and geographic spread across the country. The NDRLs for head, sinus, chest and abdomen/pelvis examinations are 58, 29, 12 and 14 mGy for CTDIVol and 750, 300, 300 and 650 mGy.cm for DLP, respectively...
November 10, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29136218/measurement-of-radiation-doses-to-the-eye-lens-during-orthopedic-surgery-using-an-c-arm-x-ray-system
#20
Akira Suzuki, Kosuke Matsubara, Yuko Sasa
The present study aimed to determine doses delivered to the eye lenses of surgeons while using the inverted-C-arm technique and the protective effect of leaded spectacles during orthopedic surgery. The kerma in air was measured at five positions on leaded glasses positioned near the eye lens and on the neck using small optically stimulated luminescence (OSL) dosemeters. The lens equivalent dose was also measured at the neck using an OSL dosemeter. The maximum equivalent dose to the eye lens and the maximum kerma were 0...
November 10, 2017: Radiation Protection Dosimetry
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