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https://www.readbyqxmd.com/read/28735383/brucellosis-causes-alteration-in-trace-elements-and-oxidative-stress-factors
#1
Naser Zanganeh, Ehsan Siahpoushi, Nejat Kheiripour, Sima Kazemi, Mohammad Taghi Goodarzi, Mohammad Yousef Alikhani
Brucellosis is regarded as one of the most common diseases among humans and livestock. In the present study, we aimed to assess the effect of this disease on the level of various cations including copper (Cu), manganese (Mn), zinc (Zn), and magnesium (Mg) as well as oxidative stress status in the serum of people suffering from brucellosis. The present case-study was carried out on 40 patients with brucellosis (case) and 20 healthy people (control). Blood specimens were taken from all the people and the level of essential trace elements and oxidative stress status were measured...
July 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28735234/nano-cerium-oxide-functionalized-biochar-for-phosphate-retention-preparation-optimization-and-rice-paddy-application
#2
Yanfang Feng, Haiying Lu, Yang Liu, Lihong Xue, Dionysios D Dionysiou, Linzhang Yang, Baoshan Xing
In this study, nano-cerium oxide functionalized maize straw biochar (Ce-MSB) was prepared and utilized to remove P from agricultural wastewater. Response Surface Model was applied to optimize the operating conditions. Moreover, Ce-MSB was applied to actual rice paddy column for the first time. Response Surface Model (RSM) showed higher materials ratio had positive effect on PO4(3-) adsorption capacity, while higher pyrolysis temperature had negative effect. The maximum adsorption capacity of Ce-MSB for PO4(3-) was 78 mg g(-1), implying that Ce-MSB was an effective functionalized adsorbent for P removal...
July 19, 2017: Chemosphere
https://www.readbyqxmd.com/read/28735184/synthesis-of-magnetic-graphene-oxide-grafted-polymaleicamide-dendrimer-nanohybrids-for-adsorption-of-pb-ii-in-aqueous-solution
#3
Ying-Xia Ma, Ya-Lan Kou, Dan Xing, Peng-Sheng Jin, Wen-Jie Shao, Xin Li, Xue-Yan Du, Pei-Qing La
In this paper, using maleic anhydride and ethylenediamine as functional monomers, graphene oxide (GO) loaded magnetic Fe3O4 nanoparticles modified by (3-Aminopropyl) triethoxysilane as support, magnetic graphene oxide grafted polymaleicamide dendrimer (GO/Fe3O4-g-PMAAM) nanohybrids were fabricated by divergent method and magnetic separation technology. The obtained samples were characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, elementary analyzer and vibrating sample magnetometer...
July 15, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28734933/photosystem-ii-cyclic-electron-flow-powers-exceptional-photoprotection-and-record-growth-in-the-microalga-chlorella-ohadii
#4
Gennady Ananyev, Colin Gates, Aaron Kaplan, G Charles Dismukes
The desert microalga Chlorella ohadii was reported to grow at extreme light intensities with minimal photoinhibition, tolerate frequent de/re-hydrations, yet minimally employs antenna-based non-photochemical quenching for photoprotection. Here we investigate the molecular mechanisms by measuring Photosystem II charge separation yield (chlorophyll variable fluorescence, Fv/Fm) and flash-induced O2 yield to measure the contributions from both linear (PSII-LEF) and cyclic (PSII-CEF) electron flow within PSII. Cells grow increasingly faster at higher light intensities (μE/m(2)/s) from low (20) to high (200) to extreme (2000) by escalating photoprotection via shifting from PSII-LEF to PSII-CEF...
July 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28734606/thiol-yne-click-synthesis-of-boronic-acid-functionalized-silica-nanoparticle-graphene-oxide-composites-for-highly-selective-enrichment-of-glycoproteins
#5
Jingai Yang, Xiwen He, Langxing Chen, Yukui Zhang
In this work, a facile novel strategy is developed for the preparation of 4-mercapto-phenylboronic acid functionalized silica nanoparticle-graphene oxide composite (GO@MPBA) via thiol-yne click reaction. The morphology, structure and composition of the resulting GO@MPBA was characterized by transmission electron microscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy, Fourier transform Raman spectroscopy, Thermogravimetric analysis and X-ray photoelectron spectrometry. GO@MPBA exhibited the high binding capacity towards glycoproteins such as ovalbumin (1288...
July 13, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28733900/the-putative-role-of-environmental-mercury-in-the-pathogenesis-and-pathophysiology-of-autism-spectrum-disorders-and-subtypes
#6
REVIEW
G Morris, B K Puri, R E Frye, M Maes
Exposure to organic forms of mercury has the theoretical capacity to generate a range of immune abnormalities coupled with chronic nitro-oxidative stress seen in children with autism spectrum disorder (ASD). The paper discusses possible mechanisms explaining the neurotoxic effects of mercury and possible associations between mercury exposure and ASD subtypes. Environmental mercury is neurotoxic at doses well below the current reference levels considered to be safe, with evidence of neurotoxicity in children exposed to environmental sources including fish consumption and ethylmercury-containing vaccines...
July 22, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28733645/hdac3-is-a-molecular-brake-of-the-metabolic-switch-supporting-white-adipose-tissue-browning
#7
Alessandra Ferrari, Raffaella Longo, Erika Fiorino, Rui Silva, Nico Mitro, Gaia Cermenati, Federica Gilardi, Béatrice Desvergne, Annapaola Andolfo, Cinzia Magagnotti, Donatella Caruso, Emma De Fabiani, Scott W Hiebert, Maurizio Crestani
White adipose tissue (WAT) can undergo a phenotypic switch, known as browning, in response to environmental stimuli such as cold. Post-translational modifications of histones have been shown to regulate cellular energy metabolism, but their role in white adipose tissue physiology remains incompletely understood. Here we show that histone deacetylase 3 (HDAC3) regulates WAT metabolism and function. Selective ablation of Hdac3 in fat switches the metabolic signature of WAT by activating a futile cycle of de novo fatty acid synthesis and β-oxidation that potentiates WAT oxidative capacity and ultimately supports browning...
July 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28733146/resveratrol-efficiently-improves-pulmonary-function-via-stabilizing-mast-cells-in-a-rat-intestinal-injury-model
#8
Xiaolei Huang, Weicheng Zhao, Dan Hu, Xue Han, Hanbin Wang, Jianyu Yang, Yang Xu, Yuantao Li, Weifeng Yao, Chaojin Chen
BACKGROUND: Intestinal ischemia/reperfusion (IIR) leads to acute lung injury (ALI) distally by aggravating pulmonary oxidative stress. Resveratrol is effective in attenuating ALI through its antioxidant capacity. This study aimed to determine the effects of resveratrol on IIR-induced ALI and to explore the role of mast cells (MCs) activation in a rat model of IIR. METHODS: Adult Sprague-Dawley rats were subjected to IIR by occluding the superior mesenteric artery for 60min followed by 4-hour reperfusion...
July 18, 2017: Life Sciences
https://www.readbyqxmd.com/read/28733014/removal-of-congo-red-dye-from-aqueous-solution-with-nickel-based-metal-organic-framework-graphene-oxide-composites-prepared-by-ultrasonic-wave-assisted-ball-milling
#9
Shuaiqi Zhao, Ding Chen, Fuhua Wei, Nini Chen, Zhao Liang, Yun Luo
Metal-organic frameworks (MOFs) were successfully synthesized by ultrasonic wave-assisted ball milling. In the absence of organic solvent, the coupling effect of ultrasonic wave and mechanical force played an significant role in the synthesis of MOFs. Adsorption of Congo red (CR) was studied in view of adsorption kinetic, isotherm and thermodynamics. The adsorbent was carried out using X-ray diffraction (XRD), thermogravimetric analysis (TGA), N2 adsorption-desorption isotherms, Raman spectroscopy and scanning electron microscope (SEM) methods...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28732164/electrochemical-intercalation-of-mg-2-into-anhydrous-and-hydrated-crystalline-tungsten-oxides
#10
Ruocun Wang, Ching-Chang Chung, Yang Liu, Jacob L Jones, Veronica Augustyn
The reversible intercalation of multivalent cations, especially Mg(2+), into a solid-state electrode is an attractive mechanism for next-generation energy storage devices. These reactions typically exhibit poor kinetics due to a high activation energy for interfacial charge-transfer and slow solid-state diffusion. Interlayer water in V2O5 and MnO2 has been shown to improve Mg(2+) intercalation kinetics in non-aqueous electrolytes. Here, the effect of structural water on Mg(2+) intercalation in non-aqueous electrolytes is examined in crystalline WO3 and the related hydrated and layered WO3·nH2O (n = 1, 2)...
July 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28731713/revealing-the-electrochemical-charging-mechanism-of-nano-sized-li2s-by-in-situ-and-operando-x-ray-absorption-spectroscopy
#11
Liang Zhang, Dan Sun, Jun Feng, Elton J Cairns, Jinghua Guo
Lithium sulfide (Li2S) is a promising cathode material for lithium/sulfur (Li/S) cells due to its high theoretical specific capacity (1166 mAh g(-1)) and capability to pair with non-metallic lithium anodes to avoid potential safety issues. However, when used as the cathode a high charging voltage (~ 4 V vs. Li+/Li) is always necessary to activate Li2S in the first charge process, and the voltage profile becomes similar to that of a common sulfur electrode in the following charge processes. In this report, we have prepared an electrode of nano-sphere Li2S particles and investigated its charging mechanism of the initial two charge processes by in-situ and operando X-ray absorption spectroscopy...
July 21, 2017: Nano Letters
https://www.readbyqxmd.com/read/28731318/ultrafast-ionic-liquid-assisted-microwave-synthesis-of-sno-microflowers-and-their-superior-sodium-ion-storage-performance
#12
Bingsheng Qin, Huang Zhang, Thomas Diemant, Dorin Geiger, Rinaldo Raccichini, R Jürgen Behm, Ute Kaiser, Alberto Varzi, Stefano Passerini
Tin oxide (SnO) is considered one of the most promising metal oxides for utilization as anode material in sodium ion batteries (SIBs), due to its ease of synthesis, high specific gravimetric capacity and satisfactory cycling performance. However, to aim at practical applications, the coulombic efficiency during cycling needs to be further improved, which requires a deeper knowledge of its working mechanism. Here, a microflower-shaped SnO material is synthesized by means of an ultrafast ionic liquid-assisted microwave method...
July 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28731213/immunomodulatory-properties-of-olea-europaea-leaf-extract-in-intestinal-inflammation
#13
Teresa Vezza, Francesca Algieri, Alba Rodríguez-Nogales, José Garrido-Mesa, M Pilar Utrilla, Nassima Talhaoui, Ana María Gómez-Caravaca, Antonio Segura-Carretero, M Elena Rodríguez-Cabezas, Giovanni Monteleone, Julio Gálvez
SCOPE: Extracts from olive (Olea europaea) leaves are used in Mediterranean traditional medicine as anti-inflammatory. They contain antioxidant phenolic compounds, like oleuropeoside, which could be interesting for the treatment of inflammatory conditions associated with oxidative stress in humans, including inflammatory bowel disease. METHODS AND RESULTS: The anti-inflammatory effects of olive leaf extract (0.5-25 mg/kg) were studied in two mice models of colitis (DSS and DNBS)...
July 21, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28731089/unveiling-the-synergistic-effect-of-polysulfide-additive-and-mno2-hollow-spheres-in-evolving-a-stable-cyclic-performance-in-li-s-batteries
#14
Syed Abdul Ahad, P Ragupathy, Soojy Ryu, Hyun-Wook Lee, Do Kyung Kim
Herein, we demonstrate a synergistic approach involving polar-based oxide and polysulfide additives for effectively suppressing polysulfide dissolution during cycling. The MnO2 hollow spheres not only provide physical confinement for the polysulfide species but also enable strong chemical interactions between polysulfide species and oxides, while the added polysulfide furnishes a mass buffering effect and compensates for the capacity losses due to partial cathode dissolution during discharge. The capacity retentions of S/KB, S/KB/LiPS, S/KB/MnO2, and S/KB/MnO2/LiPS composite cathodes are 31%, 45%, 59%, and 91% respectively...
July 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28730657/higher-levels-of-cardiorespiratory-fitness-keep-liver-mitochondria-happy
#15
Daniel J Cuthbertson, Kelly Bowden Davies
The concept that regular physical activity (PA) and exercise training promotes mitochondrial biogenesis in skeletal muscle, enhancing mitochondrial quality and quantity and in doing so increasing oxidative phosphorylation capacity, has been well established for almost 50 years. This article is protected by copyright. All rights reserved.
July 21, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28730540/gigaspora-margarita-with-and-without-its-endobacterium-shows-adaptive-responses-to-oxidative-stress
#16
Francesco Venice, Maria Concetta de Pinto, Mara Novero, Stefano Ghignone, Alessandra Salvioli, Paola Bonfante
Arbuscular mycorrhizal (AM) fungi experience oxidative stress during the plant-fungal interaction, due to endogenous reactive oxygen species (ROS) produced by fungal metabolism and exogenous ROS produced by plant cells. Here, we examine the responses to H2O2 in Gigaspora margarita, an AM fungus containing the endobacterial symbiont Candidatus Glomeribacter gigasporarum (CaGg). Previous studies revealed that G. margarita with its endobacterium produces more ATP and has higher respiratory activity than a cured line that lacks the endobacterium...
July 20, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28730510/antiinflammation-and-antioxidant-effects-of-thalidomide-on-pulmonary-fibrosis-in-mice-and-human-lung-fibroblasts
#17
Xiaoying Dong, Xin Li, Minghui Li, Ming Chen, Qian Fan, Wei Wei
In this study, the potential effects of thalidomide (Thal) on bleomycin (BLM)-induced pulmonary fibrosis were investigated. BALB/C mice model of pulmonary fibrosis induced by an intratracheal instillation of BLM was adopted, and then was intraperitoneally injected with Thal (10, 20, 50 mg/kg) daily for 8 days, while the control and BLM-treated mouse groups were injected with a saline solution. The effects of Thal on pulmonary injury were evaluated by the lung wet/dry weight ratios and histopathological examination...
July 20, 2017: Inflammation
https://www.readbyqxmd.com/read/28730362/removal-of-cr-vi-from-aqueous-solution-using-electrosynthesized-4-amino-3-hydroxynaphthalene-1-sulfonic-acid-doped-polypyrrole-as-adsorbent
#18
Mohamed Lamine Sall, Abdou Karim Diagne Diaw, Diariatou Gningue-Sall, Alexandre Chevillot-Biraud, Nihal Oturan, Mehmet Ali Oturan, Jean-Jacques Aaron
Polypyrrole (PPy) conducting films, doped with 4-amino-3-hydroxynaphthalene sulfonic acid (AHNSA), were electrosynthesized by anodic oxidation of pyrrole on Pt and steel electrodes in aqueous medium (0.01 M AHNSA +0.007 M NaOH, using cyclic voltammetry (CV), and their electrochemical properties were studied. Fourier-transform infrared (FT-IR) spectroscopy confirmed the formation of AHNSA-PPy films. Their morphology was characterized by scanning electron microscopy (SEM), and their optical properties, including UV-VIS absorption and fluorescence spectra, were also investigated...
July 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28730361/the-effect-of-different-surface-materials-on-runoff-quality-in-permeable-pavement-systems
#19
Haiyan Li, Zhifei Li, Xiaoran Zhang, Zhuorong Li, Dongqing Liu, Tanghu Li, Ziyang Zhang
To investigate the effect of different permeable pavement surface materials on the removal of pollutants from urban storm-runoff, six commonly surface materials (porous asphalt, porous concrete, cement brick, ceramic brick, sand base brick, and shale brick) were selected in this study and the research was carried out by column experiments. Except the concentrations of total suspended solids (TSS), chemical oxygen demand (COD), ammonia nitrogen (NH4-N), nitrate nitrogen (NO3-N), total nitrogen (TN), and total phosphorus (TP) in the influent and effluent that were measured, the removal mechanism of pollutants was discussed further...
July 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28729393/time-course-effects-of-aerobic-physical-training-in-the-prevention-of-cigarette-smoke-induced-copd
#20
Alessandra Choqueta Toledo-Arruda, Rodolfo Paula Vieira, Flavia Alessandra Guarnier, Camila Liyoko Suehiro, Agostinho Caleman-Neto, Clarice Rosa Olivo, Petra Mello Motta Arantes, Francine Maria Almeida, Fernanda Degobbi Tenorio Quirino Dos Santos Lopes, Ercy Mara Cipulo Ramos, Rubens Cecchini, Chin Jia Lin, Mílton A Martins
A previous study by our group showed that regular exercise training (ET) attenuated pulmonary injury in an experimental model of chronic exposure to cigarette smoke (CS) in mice, but the time-course effects of the mechanisms involved in this protection remain poorly understood. We evaluated the temporal effects of regular ET in an experimental model of chronic CS exposure. MaleC57BL/6 mice were divided into four groups: Control (sedentary+air), Exercise (aerobic training+air), Smoke (sedentary+smoke) and Smoke+Exercise (aerobic training+smoke)...
July 20, 2017: Journal of Applied Physiology
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