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https://www.readbyqxmd.com/read/28805934/fragility-of-epidermis-acne-and-post-procedure-lesional-skin
#1
G Fabbrocini, A B Rossi, M-D Thouvenin, C Peraud, V Mengeaud, A Bacquey, M Saint Aroman
'Fragile skin', or skin with lower resistance to aggressors, can be broadly classified into four causal categories: constitutional (age-dependent or associated with specific vulnerable locations on the body, e.g. eyelids), pathological (related to disease), circumstantial (related to environmental or internal factors, e.g. stress) and iatrogenic (caused by medical interventions or treatments). In this supplement, we focus on the fourth category, the iatrogenic origin of fragile skin and the role that dermo-cosmetics can have in restoring the natural protective function of the skin following treatments for skin diseases and medical interventions...
September 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28804999/diversity-of-astroglial-responses-across-human-neurodegenerative-disorders-and-brain-aging
#2
Isidro Ferrer
Astrogliopathy refers to alterations of astrocytes occurring in diseases of the nervous system, and it implies the involvement of astrocytes as key elements in the pathogenesis and pathology of diseases and injuries of the central nervous system. Reactive astrocytosis refers to the response of astrocytes to different insults to the nervous system, whereas astrocytopathy indicates hypertrophy, atrophy/degeneration and loss of function and pathological remodeling occurring as a primary cause of a disease or as a factor contributing to the development and progression of a particular disease...
September 2017: Brain Pathology
https://www.readbyqxmd.com/read/28804948/nelumbo-nucifera-leaf-extract-treatment-attenuated-preneoplastic-lesions-and-oxidative-stress-in-the-livers-of-diethylnitrosamine-treated-rats
#3
Chi-Ting Horng, Chien-Wei Huang, Mon-Yuan Yang, Tzu-Hsin Chen, Yun-Ching Chang, Chau-Jong Wang
Lotus (Nelumbo nucifera Gaertn) possesses antioxidant, hepatoprotective, and anticancer potential. This study determined the protective role of aqueous extract from Nelumbo nucifera leaves (NLE) against N-diethylnitrosamine (DEN)-induced oxidative stress and hepatocellular carcinogenesis in a sample of Sprague-Dawley rats. NLE was fed orally to rats in which hepatic carcinoma was induced with DEN for 12 weeks. Five groups of 12 rats each were used for the study: Group I (control group) rats received distilled water; Group II rats were induced with DEN; Group III rats were induced with DEN and cotreated with 0...
August 14, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28801775/plasticizers-and-bisphenol-a-in-packaged-foods-sold-in-the-tunisian-markets-study-of-their-acute-in-vivo-toxicity-and-their-environmental-fate
#4
Asma Beltifa, Anouar Feriani, Monia Machreki, Asma Ghorbel, Lakhdar Ghazouani, Giuseppa Di Bella, Joris Van Loco, Tim Reyns, Hedi Ben Mansour
Today, processed and packaged foods are considered as among the major sources of human exposure to plasticizers and bisphenol which migrate from plastic packing. In the present study, a wide range of food products sold on the Tunisian market such as grain and grain products, milk and dairy products, fats and oil, drink, fish, and sweets have been analyzed firstly in order to identify the presence of phthalates and bisphenol. Then, the identified chemical molecules were studied for their environmental fate and tested in vivo for its toxicity in mice models...
August 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28801072/irinotecan-chemotherapy-induced-intestinal-oxidative-stress-underlying-causes-of-disturbed-mucosal-water-and-electrolyte-transport
#5
Kaïs Rtibi, Slimen Selmi, Dhekra Grami, Hichem Sebai, Mohamed Amri, Lamjed Marzouki
Irinotecan, a chemotherapy drug, can cause acute diarrhea immediately after administration. Hence, the present study was designed to investigate the gastrointestinal (GI) disturbances after an intraperitoneal (IP) administration of irinotecan in rats.Twenty Wistar rats were separated into two groups of ten. Group A was considered as a control group (NaCl, 0.9%). Group B was treated with irinotecan at a single dose of 200mgkg(-1). The rats were observed for defecation. For the enteropooling test, the animals were sacrificed by decapitation 1h post-treatment...
July 23, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28800645/analysis-of-endogenous-lipids-during-intestinal-wound-healing
#6
Yunna Lee, Jieun Choo, Su Jin Kim, Gwangbeom Heo, Charalabos Pothoulakis, Yong-Hak Kim, Eunok Im
Intestinal wound healing is a new therapeutic goal for inflammatory bowel disease (IBD) as complete healing of the mucosa is the key element of clinical remission in IBD. Previous studies showed that termination of inflammation can be achieved by adding pro-resolving lipids like DHA and EPA exogenously. However, the roles of these lipids in mucosal healing have not been investigated. To recapitulate intestinal healing process, mice were received dextran sodium sulfate (DSS) for 7 days in the drinking water followed by regular tap water for 5 additional days...
2017: PloS One
https://www.readbyqxmd.com/read/28800517/efficient-inactivation-of-ms-2-virus-in-water-by-hydrodynamic-cavitation
#7
Janez Kosel, Ion Gutiérrez-Aguirre, Nejc Rački, Tanja Dreo, Maja Ravnikar, Matevž Dular
The aim of this study was to accurately quantify the impact of hydrodynamic cavitation on the infectivity of bacteriophage MS2, a norovirus surrogate, and to develop a small scale reactor for testing the effect of hydrodynamic cavitation on human enteric viruses, which cannot be easily prepared in large quantities. For this purpose, 3 mL scale and 1 L scale reactors were constructed and tested. Both devices were efficient in generating hydrodynamic cavitation and in reducing the infectivity of MS2 virus. Furthermore, they reached more than 4 logs reductions of viral infectivity, thus confirming the scalability of hydrodynamic cavitation for this particular application...
July 31, 2017: Water Research
https://www.readbyqxmd.com/read/28799530/scanning-electron-microscopy-study-of-hair-shaft-changes-related-to-hardness-of-water
#8
Lujain M Alahmmed, Ebtehal A Alibrahim, Abdullah F Alkhars, Mohammed N Almulhim, Sayed Ibrahim Ali, Feroze Kaliyadan
INTRODUCTION AND AIMS: Brittleness and breakage of hair is a common complaint in the geographical area of Saudi Arabia where we work. This area has a high level of hardness in normal tap water. We aimed to study and compare structural differences and relative deposition of calcium and magnesium salts on the hair shaft surface using scanning electron microscopy (SEM) between hair shaft samples from normal, healthy volunteers treated with hard and soft water. METHODS: Hair samples obtained from 20 healthy volunteers were divided into two groups...
August 9, 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/28798753/fine-mapping-of-a-gene-er4-1-that-causes-epidermal-reticulation-of-tomato-fruit-and-characterization-of-the-associated-transcriptome
#9
Lipeng Cui, Zhengkun Qiu, Zhirong Wang, Jianchang Gao, Yanmei Guo, Zejun Huang, Yongchen Du, Xiaoxuan Wang
The hydrophobic cuticle that covers the surface of tomato (Solanum lycopersicum) fruit plays key roles in development and protection against biotic and abiotic stresses, including water loss, mechanical damage, UV radiation, pathogens, and pests. However, many details of the genes and regulatory mechanisms involved in cuticle biosynthesis in fleshy fruits are not well understood. In this study, we describe a novel tomato fruit phenotype, characterized by epidermal reticulation (ER) of green fruit and a higher water loss rate than wild type (WT) fruit...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28798372/multi-level-quantum-mechanics-and-molecular-mechanics-study-of-ring-opening-process-of-guanine-damage-by-hydroxyl-radical-in-aqueous-solution
#10
Peng Liu, Qiong Wang, Meixing Niu, Dunyou Wang
Combining multi-level quantum mechanics theories and molecular mechanics with an explicit water model, we investigated the ring opening process of guanine damage by hydroxyl radical in aqueous solution. The detailed, atomic-level ring-opening mechanism along the reaction pathway was revealed in aqueous solution at the CCSD(T)/MM levels of theory. The potentials of mean force in aqueous solution were calculated at both the DFT/MM and CCSD(T)/MM levels of the theory. Our study found that the aqueous solution has a significant effect on this reaction in solution...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28797976/physiological-mechanisms-of-water-and-electrolyte-disturbances-following-transsphenoidal-pituitary-surgery
#11
Evan T Blair, John S Clemmer, H Louis Harkey, Robert L Hester, W Andrew Pruett
BACKGROUND: Disturbances in water and electrolyte homeostasis are common following transsphenoidal surgery. These disorders are variable and unpredictable, increasing patient risk and complicating postsurgical treatment. Clinically, it is generally accepted that damage to the pituitary is the etiology, but the mechanisms behind the response variability and underlying pathophysiology remains unknown. OBJECTIVE: To test the hypothesis that changing the degree of damage to the pituitary stalk produces a spectrum of water and electrolyte disturbance along which all presentations of postsurgical water and electrolyte disturbances can be identified...
August 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28797479/paralysis-and-heart-failure-precede-ion-balance-disruption-in-heat-stressed-european-green-crabs
#12
Lisa B Jørgensen, Johannes Overgaard, Heath A MacMillan
Acute exposure of ectotherms to critically high temperatures causes injury and death, and this mortality has been associated with a number of physiological perturbations including impaired oxygen transport, loss of ion and water homeostasis, and neuronal failure. It is difficult to discern which of these factors, if any, is the proximate cause of heat injury because, for example, loss of ion homeostasis can impair neuromuscular function (including cardiac function), and conversely impaired oxygen transport reduces ATP supply and can thus reduce ion transport capacity...
August 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28797292/the-ethanol-extract-of-aquilariae-lignum-ameliorates-hippocampal-oxidative-stress-in-a-repeated-restraint-stress-mouse-model
#13
Hyun-Yong Lee, Jin-Seok Lee, Hyeong-Geug Kim, Won-Yong Kim, Seung-Bae Lee, Yung-Hyun Choi, Chang-Gue Son
BACKGROUND: Chronic stress contributes to the development of brain disorders, such as neurodegenerative and psychiatric diseases. Oxidative damage is well known as a causative factor for pathogenic process in brain tissues. The aim of this study is to evaluate the neuroprotective effect of a 30% ethanol extract of Aquilariae Lignum (ALE) in repeated stress-induced hippocampal oxidative injury. METHODS: Fifty BALB/c male mice (12 weeks old) were randomly divided into five groups (n = 10)...
August 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28796484/superhydrophobic-superoleophilic-and-reinforced-ethyl-cellulose-sponges-for-oil-water-separation-synergistic-strategies-of-cross-linking-carbon-nanotube-composite-and-nanosilica-modification
#14
Yeqiang Lu, Weizhong Yuan
Superhydrophobic/superoleophilic and reinforced ethyl cellulose (SEC) sponges were prepared by cross-linking EC with epichlorohydrin (ECH) and complexing with silanized carbon nanotubes (Si-CNTs) followed by coating nanosilica on the surface of porous sponges and subsequent modification with hexadecyltrimethoxysilane (HDTMS). These synergistic strategies endowed the SEC sponges with the superhydrophobic/superoleophilic properties (θwater=158.2°, θoil=0°, sliding angle=3°) and outstanding mechanical properties (could bear the pressure of 28...
August 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28795571/transparent-healable-elastomers-with-high-mechanical-strength-and-elasticity-derived-from-hydrogen-bonded-polymer-complexes
#15
Yan Wang, Xiaokong Liu, Siheng Li, Tianqi Li, Yu Song, Zhandong Li, Wenke Zhang, Junqi Sun
It is challenging to develop healable elastomers with combined high mechanical strength and good elasticity. Herein, a simple strategy to develop high-performance elastomers that integrate high mechanical strength, enormous stretchability, good resilience, and healability is reported. Through simply complexing poly(acrylic acid) and poly(ethylene oxide) based on hydrogen-bonding interactions, transparent composite materials that perform as elastomers are generated. The as-prepared elastomers exhibit mechanical strength (true strength at break) and toughness (fracture energy) as high as 61 MPa and 22...
August 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28795317/nonsteroidal-anti-inflammatory-drugs-nsaids-inhibit-the-growth-and-reproduction-of-chaetomium-globosum-and-other-fungi-associated-with-water-damaged-buildings
#16
Kelsey Dalmont, Charles L Biles, Heather Konsure, Sujita Dahal, Tyler Rowsey, Matthew Broge, Shubhra Poudyal, Tara Gurung, Sabina Shrestha, Caleb L Biles, Terry Cluck, Alisha Howard
Indoor mold due to water damage causes serious human respiratory disorders, and the remediation to homes, schools, and businesses is a major expense. Prevention of mold infestation of building materials would reduce health problems and building remediation costs. Nonsteroidal anti-inflammatory drugs (NSAIDs) inhibit yeasts and a limited number of filamentous fungi. The purpose of this research was to determine the possible inhibitory activity of nonsteroidal anti-inflammatory drugs (NSAIDs) on germination, fungal growth, and reproduction of Chaetomium globosum and other important filamentous fungi that occur in water-damaged buildings...
August 9, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28795025/sub-chronic-safety-evaluation-of-aqueous-extract-of-alangium-salvifolium-l-f-wangerin-leaves-in-rats
#17
Bhupinder Kapoor, Gagandeep Kaur, Mukta Gupta, Reena Gupta
Conventionally, the juice and extract of Alangium salvifolium leaves have been used for the treatment of diabetes, wound healing, dog bite, and as a poultice in rheumatism. To carry out the sub-chronic toxicity and thereafter safety evaluation of A. salvifolium leaves. The aqueous extract of A. salvifolium leaves was administered orally at the doses of 200, 400, and 800 mg/kg/day for 90 days. All the animals were observed daily for general behavior, changes in body weight, food, and water consumption. At the end of the treatment period, biochemical and hematological parameters were analyzed; and the animals were sacrificed for histopathological examination of heart, lungs, liver, and kidney...
July 2017: Journal of Advanced Pharmaceutical Technology & Research
https://www.readbyqxmd.com/read/28792846/nanodosimetric-simulation-of-direct-ion-induced-dna-damage-using-different-chromatin-geometry-models
#18
N T Henthorn, J W Warmenhoven, M Sotiropoulos, R I Mackay, K J Kirkby, M J Merchant
Monte Carlo based simulation has proven useful in investigating the effect of proton-induced DNA damage and the processes through which this damage occurs. Clustering of ionizations within a small volume can be related to DNA damage through the principles of nanodosimetry. For simulation, it is standard to construct a small volume of water and determine spatial clusters. More recently, realistic DNA geometries have been used, tracking energy depositions within DNA backbone volumes. Traditionally a chromatin fiber is built within the simulation and identically replicated throughout a cell nucleus, representing the cell in interphase...
August 9, 2017: Radiation Research
https://www.readbyqxmd.com/read/28792661/multi-effect-of-the-water-soluble-moringa-oleifera-lectin-against-serratia-marcescens-and-bacillus-sp-antibacterial-antibiofilm-and-anti-adhesive-properties
#19
M C Moura, D S Trentin, T H Napoleão, M Primon Barros, A S Xavier, N P Carneiro, P M G Paiva, A J Macedo, L C B B Coelho
AIMS: To evaluate the antibiofilm potential of water-soluble Moringa oleifera seed lectin (WSMoL) on Serratia marcescens and Bacillus sp. METHODS AND RESULTS: WSMoL inhibited biofilm formation by S. marcescens at concentrations lower than 2.6 μg ml(-1) and impaired bacterial growth at higher concentrations, avoiding biofilm formation. For Bacillus sp., the lectin inhibited bacterial growth at all concentrations. The antibiofilm action of WSMoL is associated with damage to bacterial cells...
August 9, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28792237/a-new-flow-through-bioassay-for-testing-low-emission-antifouling-coatings
#20
Christian Pansch, Per R Jonsson, Mattias Berglin, Emiliano Pinori, Anna-Lisa Wrange
Current antifouling (AF) technologies are based on the continuous release of biocides into the water, and consequently discharge into the environment. Major efforts to develop more environmentally friendly coatings require efficient testing in laboratory assays, followed by field studies. Barnacles are important fouling organisms worldwide, increasing hydrodynamic drag on ships and damaging coatings on underwater surfaces, and thus are extensively used as models in AF research, mostly in static, laboratory-based systems...
August 9, 2017: Biofouling
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