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https://www.readbyqxmd.com/read/29156574/infectious-agents-in-atherosclerotic-cardiovascular-diseases-through-oxidative-stress
#1
REVIEW
Marisa Di Pietro, Simone Filardo, Francesca Falasca, Ombretta Turriziani, Rosa Sessa
Accumulating evidence demonstrates that vascular oxidative stress is a critical feature of atherosclerotic process, potentially triggered by several infectious agents that are considered as risk co-factors for the atherosclerotic cardiovascular diseases (CVDs). C. pneumoniae has been shown to upregulate multiple enzymatic systems capable of producing reactive oxygen species (ROS) such as NADPH oxidase (NOX) and cyclooxygenase in vascular endothelial cells, NOX and cytochrome c oxidase in macrophages as well as nitric oxide synthase and lipoxygenase in platelets contributing to both early and late stages of atherosclerosis...
November 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156272/a-quantitative-assessment-of-distributions-and-sources-of-tropospheric-halocarbons-measured-in-singapore
#2
Sayantan Sarkar, Wei Hong Fan, Shiguo Jia, Donald R Blake, Jeffrey S Reid, Puji Lestari, Liya E Yu
This work reports the first ground-based atmospheric measurements of 26 halocarbons in Singapore, an urban-industrial city-state in Southeast (SE) Asia. A total of 166 whole air canister samples collected during two intensive 7 Southeast Asian Studies (7SEAS) campaigns (August-October 2011 and 2012) were analyzed for C1-C2 halocarbons using gas chromatography-electron capture/mass spectrometric detection. The halocarbon dataset was supplemented with measurements of selected non-methane hydrocarbons (NMHCs), C1-C5 alkyl nitrates, sulfur gases and carbon monoxide to better understand sources and atmospheric processes...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29155735/quantification-of-monocyte-transmigration-and-foam-cell-formation-from-individuals-with-chronic-inflammatory-conditions
#3
Thomas A Angelovich, Anna C Hearps, Anna Maisa, Theodoros Kelesidis, Anthony Jaworowski
Coronary artery disease (CAD) is a leading cause of morbidity and mortality worldwide. Atherosclerosis, a leading cause of CAD, is initiated by the transmigration of innate immune monocytes to inflammatory sites of deposited lipid called fatty streaks, which are present in arterial walls of medium to large arteries. The key pathogenic feature of lesions at this early stage of atherosclerosis is the maturation of monocytes which migrate into arteries to form foam cells or lipid-laden macrophages. Considerable evidence supports the hypothesis that risk of atherosclerosis is increased by chronic inflammatory conditions accompanying diseases such as rheumatoid arthritis and HIV, as well as general ageing, and that this risk is predicted by monocyte activation...
October 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155461/nanoscale-trimetallic-metal-organic-frameworks-enable-efficient-oxygen-evolution-electrocatalysis
#4
Xiaoqing Huang
Metal-organic frameworks (MOFs) are a class of promising materials for diverse catalysis, but they are usually not directly employed for oxygen evolution electrocatalysis. Most reports focus on using MOFs as templates to in-situ create efficient electrocatalysts via annealing. Herein, we prepared a series of Fe/Ni/-based trimetallic MOFs (Fe/Ni/Co(Mn)-Material of Institute Lavoisier (MIL-53)) by solvothermal synthesis, which can be directly adopted as electrocatalysts. It was revealed that the Fe/Ni/Co(Mn)-MIL-53 exhibited volcano-type oxygen evolution reaction (OER) activity as a function of compositions...
November 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29154769/extracellular-lipids-accumulate-in-human-carotid-arteries-as-distinct-three-dimensional-structures-and-have-proinflammatory-properties
#5
Satu Lehti, Su D Nguyen, Ilya Belevich, Helena Vihinen, Hanna M Heikkilä, Rabah Soliymani, Reijo Käkelä, Jani Saksi, Matti Jauhiainen, Gregory A Grabowski, Outi Kummu, Sohvi Hörkkö, Marc Baumann, Perttu J Lindsberg, Eija Jokitalo, Petri T Kovanen, Katariina Öörni
Lipid accumulation is a key characteristic of advancing atherosclerotic lesions. Here we analyzed the ultrastructure of the accumulated lipids in endarterectomized human carotid atherosclerotic plaques using three-dimensional (3D) electron microscopy, a method never used in this context before. 3D-electron microscopy revealed intracellular lipid droplets and extracellular lipoprotein particles. The majority of the particles were aggregated and some connected to needle-shaped or sheet-like cholesterol crystals...
November 14, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29154264/the-effect-of-a-single-massage-based-on-the-tensegrity-principle-on-postural-stability-in-young-women
#6
Błażej Cieślik, Ireneusz Podsiadły, Michał Kuczyński, Bożena Ostrowska
OBJECTIVE: The aim of this study was to investigate the effects of normalized muscle tension via tensegrity-based massage on postural stability in a sample of female young adults. METHODS: Nineteen females aged 21.8 ± 1.9 years were recruited presenting abnormal tension at muscles adhering to any of the following structural sites: superior iliac spine, lateral sacropelvic surface, linea aspera at 1/2 of femur length, and superior nuchal line of the occiput. Balance and postural control were assessed during bipedal stance using a force platform in multiple conditions: hard surface or soft foam surface with the head in either a neutral posture or tilted backward...
November 6, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29152629/nanocrystalline-laox-nio-composite-as-high-performance-electrodes-for-supercapacitors
#7
Guo Du, Zifan Zeng, Bangqing Xiao, Dengzhi Wang, Yuan Yuan, Xiaohong Zhu, Jiliang Zhu
Nanocrystalline LaOx/NiO composite electrodes were synthesized via two types of facile cathodic electrodeposition methods onto nickel foam followed by thermal annealing without any binders. Scanning electron microscopy and transmission electron microscopy investigation revealed that LaOx nanocrystalline particles with an average diameter of 50 nm are uniformly distributed in the NiO layer or alternately deposited with the NiO layer onto the substrate. It is speculated that LaOx particles can participate in the faradaic reaction directly and offer more redox sites...
November 20, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29151460/-evaluation-of-absorbed-dose-by-mri-read-out
#8
Shuji Usui
Three dimensional dose distribution by gel dosimeters is often read out by an MRI scanner, which is readily available in most hospitals. Both the T1 and T2 relaxation rates are used to evaluate the absorbed dose. This paper will describe the principle of the imaging sequences (spin echo, multiple spin echo, and inversion recovery methods) to measure the relaxation rate and the factors to affect the precision (signal noise ratio, temperature during scanning, coil, imaging artefact). Additionally, the magnetization transfer method will be mentioned as an alternative for low-density foam gel dosimeters...
2017: Japanese Journal of Medical Physics
https://www.readbyqxmd.com/read/29150258/a-spent-coffee-grounds-based-biorefinery-for-the-production-of-biofuels-biopolymers-antioxidants-and-biocomposites
#9
REVIEW
Sanjib Kumar Karmee
Spent coffee grounds are composed of lipid, carbohydrates, carbonaceous, and nitrogen containing compounds among others. Using n-hexane and n-hexane/isopropanol mixture highest oil yield was achived during soxhlet extraction of oil from spent coffee grounds. Alternatively, supercritical carbon dioxide can be employed as a green solvent for the extraction of oil. Using advanced chemical and biotechnological methods, spent coffee grounds are converted to various biofuels such as, biodiesel, renewable diesel, bioethanol, bioethers, bio-oil, biochar, and biogas...
November 14, 2017: Waste Management
https://www.readbyqxmd.com/read/29149812/architectures-and-mechanical-properties-of-drugs-and-complexes-of-surface-active-compounds-at-air-water-and-oil-water-interfaces
#10
Dipak K Sarker
BACKGROUND: Drugs can represents a multitude of compounds from proteins and peptides, such as growth hormones and insulin and on to simple organic molecules such as flurbiprofen, ibuprofen and lidocaine. Given the chemical nature of these compounds two features are always present. A portion or portions of the molecule that has little affinity for apolar surfaces and media and the opposite a series of part or one large part that has considerable affinity for hydrophilic, polar or charged media and surfaces...
November 17, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/29149800/longitudinal-improvement-in-balance-error-scoring-system-scores-among-ncaa-division-i-football-athletes
#11
Ross E Mathiasen, Christopher P Hogrefe, Kari K Harland, Andrew Peterson, Kyle Smoot
INTRODUCTION: The Balance Error Scoring System (BESS) is a commonly used concussion assessment tool. Recent studies have questioned the stability and reliability of baseline BESS scores. The purpose of this longitudinal prospective cohort study is to examine differences in yearly baseline BESS scores in athletes participating on an NCAA Division-I football team. MATERIALS AND METHODS: NCAA Division-I freshman football athletes were videotaped performing the BESS test at matriculation and following one year of participation in the football program...
November 17, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29149712/detection-of-perfluoroalkyl-acids-and-sulphonates-in-italian-eel-samples-by-hplc-hrms-orbitrap
#12
Luca Maria Chiesa, Maria Nobile, Elisa Pasquale, Claudia Balzaretti, Petra Cagnardi, Doriana Tedesco, Sara Panseri, Francesco Arioli
Perfluoroalkyl substances (PFASs) contain one or more carbon-bound hydrogens substituted by fluorine. Since the 1950s, these compounds have been used to manufacture fat- and water-resistant fabrics, paper and food containers, and to produce photographic films, firefighting foams, detergents and insecticides. The widespread use and global distribution of PFASs, have led to their accumulation in the environment. Food, particularly fish and other seafood, is considered the main route of human exposure to PFASs...
October 27, 2017: Chemosphere
https://www.readbyqxmd.com/read/29149567/preparation-of-lithium-titanate-reduced-graphene-oxide-composites-with-3d-fishnet-like-conductive-structure-via-a-gas-foaming-method-for-high-rate-lithium-ion-batteries
#13
Tao Meng, Fenyun Yi, Honghong Cheng, Junnan Hao, Dong Shu, Shixu Zhao, Chun He, Xiaona Song, Fan Zhang
Using ammonium chloride (NH4Cl) as the pore-forming agent, three-dimensional (3D) "fishnet-like" lithium titanate/reduced graphene oxide (LTO/G) composites with hierarchical porous structure are prepared via a gas-foaming method. SEM and TEM images show that in the composite prepared with the NH4Cl concentration of 1 mg mL-1 (1-LTO/G), LTO particles with sizes of 50~100 nm disperse homogeneously on the 3D "fishnet-like" graphene sheets. The nitrogen-sorption analyses reveal the existence of micro/mesopores, which is attributed to the introduction of NH4Cl into the gap between the graphene sheets that further decomposes into gases and produces hierarchical pores during the thermal treatment process...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29149035/wearete-a-scalable-wearable-e-textile-triboelectric-energy-harvesting-system-for-human-motion-scavenging
#14
Xian Li, Ye Sun
In this paper, we report the design, experimental validation and application of a scalable, wearable e-textile triboelectric energy harvesting (WearETE) system for scavenging energy from activities of daily living. The WearETE system features ultra-low-cost material and manufacturing methods, high accessibility, and high feasibility for powering wearable sensors and electronics. The foam and e-textile are used as the two active tribomaterials for energy harvester design with the consideration of flexibility and wearability...
November 17, 2017: Sensors
https://www.readbyqxmd.com/read/29147813/noninvasive-induction-of-angiogenesis-in-tissues-by-external-suction-sequential-optimization-for-use-in-reconstructive-surgery
#15
G Giatsidis, L Cheng, A Haddad, K Ji, J Succar, L Lancerotto, J Lujan-Hernandez, P Fiorina, H Matsumine, D P Orgill
In reconstructive surgery, tissues are routinely transferred to repair a defect caused by trauma, cancer, chronic diseases, or congenital malformations; surgical transfer intrinsically impairs metabolic supply to tissues placing a risk of ischemia-related complications such as necrosis, impaired healing, or infection. Pre-surgical induction of angiogenesis in tissues (preconditioning) can limit postsurgical ischemic complications and improve outcomes, but very few preconditioning strategies have successfully been translated to clinical practice due to the invasiveness of most proposed approaches, their suboptimal effects, and their challenging regulatory approval...
November 17, 2017: Angiogenesis
https://www.readbyqxmd.com/read/29146346/enhanced-functionality-of-pea-rice-protein-isolate-blends-through-direct-steam-injection-processing
#16
Ewa Pietrysiak, Denise M Smith, Brennan M Smith, Girish M Ganjyal
Direct steam injection (DSI) processing with pH adjustment was investigated to enhance the functionality of pea-rice protein isolate blends (PR). Protein slurries at concentration of 5%(w/w) of commercial pea and rice protein isolates in the ratio of 2:1(w/w) across a range of steam temperatures (66-107°C) and pH values (2-11) were studied. After DSI treatment, the PR were freeze-dried to obtain the final dry protein powder. Based on protein solubility profiles, the optimal DSI processing conditions were 107°C and pH 11...
March 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29145143/biodegradation-of-polystyrene-wastes-in-yellow-mealworms-larvae-of-tenebrio-molitor-linnaeus-factors-affecting-biodegradation-rates-and-the-ability-of-polystyrene-fed-larvae-to-complete-their-life-cycle
#17
Shan-Shan Yang, Anja Malawi Brandon, James Christopher Andrew Flanagan, Jun Yang, Daliang Ning, Shen-Yang Cai, Han-Qing Fan, Zhi-Yue Wang, Jie Ren, Eric Benbow, Nan-Qi Ren, Robert M Waymouth, Jizhong Zhou, Craig S Criddle, Wei-Min Wu
Commercial production of polystyrene (PS) -a persistent plastic that is not biodegradable at appreciable rates in most environments-has led to its accumulation as a major contaminant of land, rivers, lakes, and oceans. Recently, however, an environment was identified in which PS is susceptible to rapid biodegradation: the larval gut of Tenebrio molitor Linnaeus (yellow mealworms). In this study, we evaluate PS degradation capabilities of a previously untested strain of T. molitor and assess its survival and PS biodegradation rates for a range of conditions (two simulated food wastes, three temperatures, seven PS waste types)...
October 23, 2017: Chemosphere
https://www.readbyqxmd.com/read/29145139/application-and-microbial-ecology-of-psychrotrophs-in-domestic-wastewater-treatment-at-low-temperature
#18
Zhenzhen Xu, Yue Ben, Zhonglin Chen, Anxi Jiang, Jimin Shen, Xiaoyun Han
The feasibility of a bunch of screened psychrotrophs being applied to low-temperature wastewater treatment was investigated. The screened psychrophillic strains are capable of growth at a broad temperature-range from 0 to 40 °C and exhibit a preferable TTC-dehydrogenase activity at low temperature (4-10 °C). Along the sharply fluctuant temperatures (25-4-25 °C), the screened psychrotrophs (compared with the indigenous mesophiles) demonstrate less fluctuations of COD removal and more rapid recovery after temperature shocks...
October 24, 2017: Chemosphere
https://www.readbyqxmd.com/read/29143333/the-effect-of-alcohol-based-hand-sanitizer-vapors-on-evidential-breath-alcohol-test-results
#19
Ellen Strawsine, Brian Lutmer
This study was undertaken to determine if the application of alcohol-based hand sanitizers (ABHSs) to the hands of a breath test operator will affect the results obtained on evidential breath alcohol instruments (EBTs). This study obtained breath samples on three different EBTs immediately after application of either gel or foam ABHS to the operator's hands. A small, but significant, number of initial analyses (13 of 130, 10%) resulted in positive breath alcohol concentrations, while 41 samples (31.5%) resulted in a status code...
November 16, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29142178/actual-consumption-amount-of-personal-care-products-reflecting-japanese-cosmetic-habits
#20
Masahiko Yamaguchi, Daisuke Araki, Takeshi Kanamori, Yasuko Okiyama, Hirokazu Seto, Masaki Uda, Masahito Usami, Yutaka Yamamoto, Takuji Masunaga, Hitoshi Sasa
Safety assessments of cosmetics are carried out by identifying possible harmful effects of substances in cosmetic products and assessing the exposure to products containing these substances. The present study provided data on the amounts of cosmetic products consumed in Japan to enhance and complement the existing data from Europe and the United States, i.e., the West. The outcomes of this study increase the accuracy of exposure assessments and enable more sophisticated risk assessment as a part of the safety assessment of cosmetic products...
2017: Journal of Toxicological Sciences
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