keyword
MENU ▼
Read by QxMD icon Read
search

Uva

keyword
https://www.readbyqxmd.com/read/28426810/correction-mirnas-in-the-vitreous-humor-of-patients-affected-by-idiopathic-epiretinal-membrane-and-macular-hole
#1
Andrea Russo, Marco Ragusa, Cristina Barbagallo, Antonio Longo, Teresio Avitabile, Maurizio G Uva, Vincenza Bonfiglio, Mario D Toro, Rosario Caltabiano, Cesare Mariotti, Francesco Boscia, Mario R Romano, Cinzia Di Pietro, Davide Barbagallo, Michele Purrello, Michele Reibaldi
[This corrects the article DOI: 10.1371/journal.pone.0174297.].
2017: PloS One
https://www.readbyqxmd.com/read/28426239/performance-of-an-artificial-pancreas-system-for-young-children-with-type-1-diabetes
#2
Mark D DeBoer, Marc D Breton, Christian Wakeman, Elaine M Schertz, Emma G Emory, Jessica L Robic, Laura L Kollar, Boris P Kovatchev, Daniel R Cherñavvsky
BACKGROUND: Young children 5-8 years old with type 1 diabetes (T1D) exhibit clear needs for improved glycemic control but may be limited in their ability to safely interact with an artificial pancreas system. Our goal was to evaluate the safety and performance of an artificial pancreas (AP) system among young children with T1D. RESEARCH DESIGN AND METHODS: In a randomized, crossover trial, children with T1D age 5-8 years were enrolled to receive on separate study periods (in random order) either the UVa AP using the DiAs Control Platform software with child-resistant lock-out screens (followed as an out-patient admission) or their usual insulin pump+continuous glucose monitor (CGM) care at home...
April 20, 2017: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/28425613/uva-1-laser-in-the-treatment-of-patients-with-vitiligo
#3
Torello Lotti, Katlein França
No abstract text is available yet for this article.
April 20, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28424532/stemness-and-differentiation-potential-recovery-effects-of-sinapic-acid-against-ultraviolet-a-induced-damage-through-the-regulation-of-p38-mapk-and-nf-%C3%AE%C2%BAb
#4
Young Sun Hwang, See-Hyoung Park, Mingyeong Kang, Sae Woong Oh, Kwangseon Jung, Yong Seek Park, Jongsung Lee
Ultraviolet A (UVA) irradiation exerts negative effects on stemness and differentiation potential of stem cells. This study aimed to explore the effect of sinapic acid on UVA-irradiation-induced damages to stemness and differentiation potential of human-adipose-tissue-derived mesenchymal stem cells (hAMSCs) and its UVA-antagonist mechanisms. Sinapic acid attenuated UVA-induced reduction in the proliferative potential and stemness by upregulating OCT4, SOX2, and NANOG. In addition, sinapic acid significantly recovered UVA-induced reduction in expression level of hypoxia-inducible factor (HIF)-1α...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28417557/a-multitarget-approach-toward-the-development-of-a-new-series-of-8-substituted-purines-for-photoprotection-and-prevention-of-ultra-violet-uv-related-damages
#5
Ernestine Nicaise Djuidje, Valeria Dissette, Alessia Bino, Simonetta Benetti, Jan Balzarini, Sandra Liekens, Stefano Manfredini, Silvia Vertuani, Anna Baldisserotto
In environmental abundance, UV is the most important modifiable risk factor for skin cancer and many other skin diseases such as early photo-aging. Among solar radiation, ultraviolet (UV) is mainly responsible for inducing skin problems. In search of novel photoprotective purines, a new series of 8-substituted purines were synthesized from commercially available 6-hydroxy-4,5-diaminopyrimidine hemisulfate or 4,5-diaminopyrimidine. All the title compounds were investigated for their UV-filter, antioxidant, antifugal and antiproliferative activities...
April 18, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28412651/time-dependent-effect-of-rutin-on-skin-fibroblasts-membrane-disruption-following-uv-radiation
#6
Agnieszka Gęgotek, Katarzyna Bielawska, Michał Biernacki, Izabela Dobrzyńska, Elżbieta Skrzydlewska
Chronic exposure of the skin to solar UV radiation induces a number of biological alterations, including a redox imbalance; therefore, there is an urgent need for skin cells protective compounds. The aim of this study was to determine the effects of natural, previously extensively examined, polyphenol with antioxidant properties - rutin, on UV-induced skin fibroblasts membrane disruption. Accordingly, fibroblasts exposed to UVA and UVB irradiation were incubated with rutin (12h before and/or up to 24h after irradiation), and the structural and metabolic changes were examined...
April 9, 2017: Redox Biology
https://www.readbyqxmd.com/read/28400912/impact-on-autophagy-and-ultraviolet-b-induced-responses-of-treatment-with-the-mtor-inhibitors-rapamycin-everolimus-torin-1-and-pp242-in-human-keratinocytes
#7
Song Xu, Li Li, Min Li, Mengli Zhang, Mei Ju, Xu Chen, Heng Gu
The mechanistic target of Rapamycin (MTOR) protein is a crucial signaling regulator in mammalian cells that is extensively involved in cellular biology. The function of MTOR signaling in keratinocytes remains unclear. In this study, we detected the MTOR signaling and autophagy response in the human keratinocyte cell line HaCaT and human epidermal keratinocytes treated with MTOR inhibitors. Moreover, we detected the impact of MTOR inhibitors on keratinocytes exposed to the common carcinogenic stressors ultraviolet B (UVB) and UVA radiation...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28397142/mutations-in-the-tp53-gene-affected-recruitment-of-53bp1-protein-to-dna-lesions-but-level-of-53bp1-was-stable-after-%C3%AE-irradiation-that-depleted-mdc1-protein-in-specific-tp53-mutants
#8
Jana Suchánková, Soňa Legartová, Eva Ručková, Bořivoj Vojtěšek, Stanislav Kozubek, Eva Bártová
53BP1 is a very well-known protein that is recruited to DNA lesions. The focal accumulation of p53 binding protein, 53BP1, is a main feature indicating the repair of spontaneous or irradiation-induced foci (IRIF). Thus, here, we addressed the question of whether mutations in the TP53 gene, which often affect the level of p53 protein, can change the recruitment of 53BP1 to γ- or UVA-irradiated chromatin. In various TP53 mutants, we observed a distinct accumulation of 53BP1 protein to UV-induced DNA lesions: in R273C mutants, 53BP1 appeared transiently at DNA lesions, during 10-30 min after irradiation; the mutation R282W was responsible for accumulation of 53BP1 immediately after UVA-damage; and in L194F mutants, the first appearance of 53BP1 protein at the lesions occurred during 60-70 min...
April 10, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28394702/removal-of-phenanthrene-in-aqueous-solution-containing-photon-competitors-by-tio2-c-ag-film-supported-on-fiberglass
#9
Denisse Fabiola González-Ramírez, Pedro Ávila-Pérez, Luis G Torres-Bustillos, Ricardo Aguilar-López, María C Montes-Horcasitas, Fernando J Esparza-García, Refugio Rodríguez-Vázquez
Surface interactions with pollutants and photons are key factors that affect the applications of TiO2 in environmental remediation. In this study, the solubilizing agents dimethylsulfoxide and polyoxyethylene sorbitan monooleate, which act as photon competitors, had no effect on the photocatalytic activity of TiO2-C-Ag film in phenanthrene (PHE) removal. Fiberglass with TiO2-C-Ag coating removed 91.1 ± 5.2 and 99.7 ± 0.4% of PHE in treatments using UVA (365-465 nm) and UVC (254 nm) irradiation, respectively...
April 10, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28392939/thinner-corneas-appear-to-have-more-striking-effects-of-corneal-collagen-crosslinking-in-patients-with-progressive-keratoconus
#10
Yunfei Han, Yanyun Xu, Wei Zhu, Yuling Liu, Zhen Liu, Xiaoxiao Dou, Guoying Mu
Purpose. To analyze the outcomes and difference after UVA/riboflavin corneal collagen crosslinking (CXL) in four different corneal thickness groups of patients with progressive keratoconus. Methods. Retrospective study. Eyes with progressive keratoconus after CXL were divided into 4 subgroups as follows: group 1, thinnest corneal thickness (TCT) ≤ 400 µm; group 2, 400 µm < TCT ≤ 450 µm; group 3, 450 µm < TCT ≤ 500 µm; group 4, TCT ≥ 500 µm. Baseline, 6-month, and 12-month visual acuity, corneal topography, TCT, and endothelial cell density were evaluated...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28389280/in-vitro-safety-and-efficacy-evaluations-of-a-complex-botanical-mixture-of-eugenia-dysenterica-dc-myrtaceae-prospects-for-developing-a-new-dermocosmetic-product
#11
Larissa Cleres Moreira, Renato Ivan de Ávila, Danillo Fabrini Maciel Costa Veloso, Tatiana Nascimento Pedrosa, Emerson Silva Lima, Renê Oliveira do Couto, Eliana Martins Lima, Aline Carvalho Batista, José Realino de Paula, Marize Campos Valadares
In the context of developing a new natural product-based cosmetic, the in vitro efficacy and safety evaluations of a complex botanical mixture based on Eugenia dysenterica leaf hydroalcoholic extract (EDE) (2.5-1000μg/mL) were carried out. Chromatographic analysis demonstrated the presence of the tannin (ellagic acid) and flavonoids (quercetin and gallic acid) which characterize the EDE as a polyphenol-rich mixture. Using HFF-1 fibroblasts, it was shown that EDE promoted cell regeneration after UVA exposure...
April 4, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28389279/in-vitro-assessment-of-skin-sensitization-photosensitization-and-phototoxicity-potential-of-commercial-glyphosate-containing-formulations
#12
Renato Ivan de Ávila, Gabriel Campos Teixeira, Danillo Fabrini Maciel Costa Veloso, Larissa Cleres Moreira, Eliana Lima Martins, Marize Campos Valadares
This study evaluated the applicability of a modified Direct Peptide Reactivity Assay (DPRA) (OECD N° 442C, 2015) through the 10-fold reduction of reaction volume (micro-DPRA, mDPRA) for skin sensitization evaluation of six commercial glyphosate-containing formulations. In addition, another modification of DPRA was proposed by adding a UVA (5J/cm(2)) irradiation step, namely photo-mDPRA, to better characterize (photo)sensitizer materials. The phototoxicity profile of pesticides was also evaluated using the 3T3 Neutral Red Uptake Phototoxicity Test (3T3-NRU-PT) (OECD N° 432, 2004)...
April 4, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28388756/a-farewell-party
#13
Miguel Sousa-Uva
No abstract text is available yet for this article.
April 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28380676/bactericidal-effect-of-photocatalytically-active-nanostructured-tio2-surfaces-on-biofilms-of-the-early-oral-colonizer-streptococcus-oralis
#14
Emma Westas, Mariko Hayashi, Francesca Cecchinato, Ann Wennerberg, Martin Andersson, Ryo Jimbo, Julia R Davies
This study evaluated the photocatalytic bactericidal effect of nanostructured anatase-rich titanium dioxide (TiO2 ) on biofilms. Commercially pure titanium discs were spin-coated with photocatalytic TiO2 nanoparticles (P25). Uncoated discs were used as control (CTRL). Half of the CTRL and half of the P25-coated surfaces were coated with purified saliva (SAL) to give four different groups (CTRL, CTRL+SAL, P25 and P25+SAL). Streptococcus oralis were allowed to form biofilms on the discs for 18 hours and non-adherent cells were rinsed off thereafter...
April 5, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28379252/violet-blue-light-activates-nrf2-signaling-and-modulates-the-inflammatory-response-of-thp-1-monocytes
#15
L A Trotter, D Patel, S Dubin, C Guerra, V McCloud, P Lockwood, R Messer, J C Wataha, J B Lewis
Several studies suggest that light in the UVA range (320-400 nm) activates signaling pathways that are anti-inflammatory and antioxidative. These effects have been attributed to Nrf2-mediated upregulation of "phase 2" genes such as heme oxygenase-1 (HO-1) that neutralize oxidative stress and metabolize electrophiles. Proteomics analysis previously had shown that small doses of blue light (400-500 nm) increased levels of peroxiredoxin phase 2 proteins in THP-1 monocytes, which led to our hypothesis that blue light activates Nrf2 signaling and thus may serve as an anti-inflammatory agent...
April 5, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28375193/uva1-for-diffuse-cutaneous-systemic-sclerosis-in-a-fitzpatrick-skin-type-vi-patient-outcomes-in-the-modified-rodnan-skin-score
#16
Bárbara Roque Ferreira, Ana Rita Gameiro, Maria Manuel Brites, Hugo Schönenberger Oliveira, José Pedro Reis
INTRODUCTION: Cutaneous sclerosis can lead to important mobility impairment. Ultraviolet (UV) A1 phototherapy may improve skin sclerosis, although most of the studies have been with Caucasian patients. MATERIAL AND METHODS: A 44-year-old patient, Fitzpatrick skin type VI, was being followed up with the diagnosis of diffuse cutaneous systemic sclerosis. He had significant mobility impairment, especially of the right hand and arm. In 2015 he started UVA1 phototherapy daily, Monday until Friday (Waldmann® 7001 UVA cabin equipped with 40 Philips TL/10R lamps - spectral irradiation between 340 and 400 nm)...
January 31, 2017: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/28374035/critical-appraisal-of-data-used-to-infer-record-uvi-in-the-tropical-andes
#17
R L McKenzie, J B Liley, S Madronich
When the data sets that suggested record high UVI values at Mt Licancabur, and Laguna Blanca, Bolivia are reviewed in full, we find that the reported peak values are incorrect, probably due to instrumental problems. These affect the UVB, UVA and PAR channels at different times and different solar zenith angles, with distinct diurnal patterns in each case. The outliers are consistent with errors that would result from build-up of ice or snow on the surface of the entrance dome, combined with incomplete baffling of light within the integrating spheres that form the entrance optic of these instruments, but we cannot unequivocally attribute them to this cause...
April 4, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28363964/enhanced-antimicrobial-activity-based-on-a-synergistic-combination-of-sub-lethal-levels-of-stresses-induced-by-uv-a-light-and-organic-acids
#18
Erick F de Oliveira, Andrea Cossu, Rohan V Tikekar, Nitin Nitin
Reduction of microbial load in food and water systems is critical for their safety and shelf-life. Conventionally, physical processes such as heat or light are used for rapid inactivation of microbes, while natural compounds such as lactic acid may be used as preservatives after the initial physical process. This study demonstrates enhanced and rapid inactivation of bacteria based on a synergistic combination of sub-lethal levels of stresses induced by UV-A light and two food grade organic acids. A 4.7 ± 0...
March 31, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28347904/bioaccumulation-and-biomagnification-of-ultraviolet-absorbents-in-marine-wildlife-of-the-pearl-river-estuarine-south-china-sea
#19
Xianzhi Peng, Yujuan Fan, Jiabin Jin, Songsong Xiong, Jun Liu, Caiming Tang
Bioaccumulation and trophic transfer in ecosystems is an important criterion for assessing environmental risks of contaminants. This study investigated bioaccumulation and biomagnification of 13 organic ultraviolet absorbents (UVAs) in marine wildlife organisms in the Pearl River Estuary, South China Sea. The UVAs could accumulate in the organisms with biota - sediment accumulation factors (BSAF) of 0.003-2.152. UV531 was the most abundant and showed the highest tendency to accumulate in the organisms with a median BSAF of 1...
March 24, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28342848/ultraviolet-a-induced-oxidation-in-cornea-characterization-of-the-early-oxidation-related-events
#20
Corinne Zinflou, Patrick J Rochette
Exposure to sunlight ultraviolet-A (UVA), the main component of solar UV reaching the eyes, is suspected to play an important part in the onset of ocular pathologies. UVA primary biological deleterious effects arise from the photo-induction of oxidative stress in cells. However, the molecular bases linking UVA-induced oxidation to UVA toxicity in eyes remain poorly understood, especially with regards to the cornea. To shed some light on this issue, we have investigated the susceptibility and response potential of the different corneal cellular layers (epithelium, stroma and endothelium) to UVA-induced oxidation...
March 22, 2017: Free Radical Biology & Medicine
keyword
keyword
102207
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"