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https://www.readbyqxmd.com/read/28528516/combined-effects-of-chinese-medicine-feed-and-ginger-extract-bath-on-co-infection-of-ichthyophthirius-multifiliis-and-dactylogyrus-ctenopharyngodonid-in-grass-carp
#1
Yao-Wu Fu, Bin Wang, Qi-Zhong Zhang, De-Hai Xu, De-Jie Lin, Xing-Ya Yang, Shu-Qun Zhu, Jing-Yang Pan, Qian Deng, Yan-Meng Liu, Sheng-Yu Zhou
Dactylogyrus ctenopharyngodonid and Ichthyophthirius multifiliis are two important ectoparasites of freshwater fish. Co-infection by the two parasites leads to high fish mortality and results in heavy economic losses. This study aimed to evaluate the efficacy of medicated feed and a ginger extract bath against D. ctenopharyngodonid and I. multifiliis on grass carp and investigate the hematological response of grass carp co-infected by the two parasites. These results demonstrated that red blood cell (RBC) and thrombocyte percentage among leucocytes significantly decreased after grass carp were co-infected by D...
May 20, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28528513/the-expansive-role-of-oxylipins-on-platelet-biology
#2
REVIEW
Jennifer Yeung, Megan Hawley, Michael Holinstat
In mammals, three major oxygenases, cyclooxygenases (COXs), lipoxygenases (LOXs), and cytochrome P450 (CYP450), generate an assortment of unique lipid mediators (oxylipins) from polyunsaturated fatty acids (PUFAs) which exhibit pro- or anti-thrombotic activity. Over the years, novel oxylipins generated from the interplay of theoxygenase activity in various cells, such as the specialized pro-resolving mediators (SPMs), have been identified and investigated in inflammatory disease models. Although platelets have been implicated in inflammation, the role and mechanism of these SPMs produced from immune cells on platelet function are still unclear...
May 20, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28528507/mertk-does-not-mediate-phagocytosis-of-staphylococcus-aureus-but-attenuates-inflammation-induced-by-staphylococcal-lipoteichoic-acid-through-blocking-nf-%C3%AE%C2%BAb-activation
#3
Bing Zhang, Huimei Wu, Lei Fang, Peishan Ding, Ke Xu, Qingbin Yang, Rongyu Liu
Mer receptor tyrosine kinase (MerTK) expressed in macrophages is essential for phagocytosis of apoptotic cells. Here, we investigate whether MerTK is involved in the phagocytosis of Staphylococcus aureus (S. aureus) and regulation of staphylococcal lipoteichoic acid (LTA)-induced inflammatory response in macrophages. We found that stimulating RAW264.7 macrophages with S. aureus activated multiple signaling pathways including toll-like receptor 2 (TLR2), scavenger receptor A (SR-A), and MerTK. Meanwhile, S. aureus stimulation also induced activation of proteins focal adhesion kinase (FAK) and Rac1, which are related to phagocytosis...
May 20, 2017: Inflammation
https://www.readbyqxmd.com/read/28528506/exposure-of-marine-mussels-to-diclofenac-modulation-of-prostaglandin-biosynthesis
#4
Frédérique Courant, Lauren Arpin-Pont, Bénilde Bonnefille, Sébastien Vacher, Marina Picot-Groz, Elena Gomez, Hélène Fenet
Human pharmaceuticals, such as nonsteroidal anti-inflammatory drugs (NSAIDs), are an emerging threat to marine organisms. NSAIDs act through inhibition of cyclooxygenase (COX) conversion of arachidonic acid into prostaglandins. One experiment was carried out whereby marine mussels were exposed for 72 h to 1 and 100 μg/L diclofenac (DCF). A specific and sensitive method using liquid chromatography high-resolution tandem mass spectrometry was developed to quantify DCF in mussel tissues. The developed method could also clearly identify and quantify COX products, i...
May 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28528505/enhanced-degradation-of-perfluorooctanoic-acid-using-dielectric-barrier-discharge-with-la-ce-doped-tio2
#5
Shanping Li, Xiaoping Wang, Lijun Liu, Yongbo Guo, Qinglin Mu, Abdelwahid Mellouki
A synergistic system of dielectric barrier discharge (DBD) combined with La/Ce-TiO2 was developed to investigate the decomposition performance of the environmentally persistent perfluorooctanoic acid (PFOA). The La/Ce-TiO2 was modified by sol-gel method and characterized by XRD, SEM, and energy dispersive X-ray. The effects of PFOA concentration, applied voltage, initial pH, liquid conductivity, and additives on the removal rate of PFOA were explored. The results showed that the La/Ce-TiO2 exhibited excellent catalytic effects on PFOA degradation in DBD system...
May 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28528501/salicylic-acid-determination-in-estuarine-and-riverine-waters-using-hollow-fiber-liquid-phase-microextraction-and-capillary-zone-electrophoresis
#6
Gilmar Silvério da Silva, Diana L D Lima, Valdemar Inocêncio Esteves
A low-cost methodology using hollow fiber liquid-phase microextraction (HF-LPME) and capillary zone electrophoresis (CZE) with UV-Vis detector was developed to analyze the salicylic acid (SA) in estuarine and riverine waters. The technique is easy-to-use and rapid, and demands little volume of organic solvent. The extraction was carried out using a polypropylene membrane supporting into octan-1-ol. HF-LPME under optimized conditions (donor solution sample pH 2, acceptor solution pH 14, sample volume 25 mL, fiber length 10 cm, acceptor volume 25 μL, extraction time 3 h and stirring speed 350 rpm) presented high enrichment factor (407 times) and good recovery in real water samples (from 88 to 110%)...
May 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28528500/using-poly-glutamic-acid-as-soil-washing-agent-to-remediate-heavy-metal-contaminated-soils
#7
Zong-Han Yang, Cheng-Di Dong, Chiu-Wen Chen, Yih-Terng Sheu, Chih-Ming Kao
The extraction efficiency of heavy metals from soils using three forms of gamma poly-glutamic acid (γ-PGA) as the washing agents was investigated. Controlling factors including agent concentrations, extraction time, pH, and liquid to soil ratio were evaluated to determine the optimum operational conditions. The distribution of heavy metal species in soils before and after extraction processes was analyzed. Up to 46 and 74% of heavy metal removal efficiencies were achieved with one round and a sequential extraction process using H-bonding form of γ-PGA (200 mM) with washing time of 40 min, liquid to solid ratio of 10 to 1, and pH of 6...
May 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28528499/metal-transport-and-remobilisation-in-a-basin-affected-by-acid-mine-drainage-the-role-of-ochreous-amorphous-precipitates
#8
Sirio Consani, Cristina Carbone, Enrico Dinelli, Tonci Balić-Žunić, Laura Cutroneo, Marco Capello, Gabriella Salviulo, Gabriella Lucchetti
Metal-polluted mine waters represent a major threat to the quality of waters and sediments in a downstream basin. At the confluence between acidic mine waters and the unpolluted waters of the Gromolo Torrent (Liguria, North-West Italy), the massive formation of an ochreous amorphous precipitate takes place. This precipitate forms a soft blanket that covers the torrent bed and can be observed down to its mouth in the sea. The aim of this work is to evaluate the dispersion of metals in the Gromolo Torrent basin from the abandoned Cu-Fe sulphide mine of Libiola to the Ligurian Sea and to assess the metal remobilisation from the amorphous precipitates...
May 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28528488/enhanced-production-of-para-hydroxybenzoic-acid-by-genetically-engineered-saccharomyces-cerevisiae
#9
Nils J H Averesch, Alex Prima, Jens O Krömer
Saccharomyces cerevisiae is a popular organism for metabolic engineering; however, studies aiming at over-production of bio-replacement precursors for the chemical industry often fail to overcome proof-of-concept stage. When intending to show real industrial attractiveness, the challenge is twofold: formation of the target compound must be increased, while minimizing the formation of side and by-products to maximize titer, rate and yield. To tackle these, the metabolism of the organism, as well as the parameters of the process, need to be optimized...
May 20, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28528474/toxicity-assessment-of-ash-and-dust-from-handmade-gold-jewelry-manufacturing-workshops-in-bangladesh
#10
Arif M Sikder, Tanvir Hossain, Manzurul H Khan, M Aziz Hasan, M Fakhruzzaman, Joseph B Turner, Dmitry Pestov, Leigh S McCallister, K Maudood Elahi
Traditionally, handmade gold jewelry played a very important role in the cultural heritage of Bangladesh. Goldsmiths still are partially using ancient manufacturing process with coal fire, candle flame blowing, and nitric and sulfuric acid treatments. Such process leads to the contamination of workplace with the dust of toxic metals, acidic vapors, and particles of different natures. To evaluate contamination by particulate matter (PM), the passive particle collectors were installed in different manufacturing units for a period of 85 days at Tanti Bazar, Dhaka, Bangladesh...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28528433/hydrolysis-of-phosphatidylcholine-isoprostanes-ptdcho-ip-by-peripheral-human-group-iia-v-and-x-secretory-phospholipases-a2-spla2
#11
Arnis Kuksis, Waldemar Pruzanski
Biologically active F- and E/D-type-prostane ring isomers (F2-IP and E2/D2-IP, respectively) are produced in situ by non-enzymatic peroxidation of arachidonic acid esterified to GroPCho (PtdCho-IP) and are universally distributed in tissue lipoproteins and cell membranes. Previous work has shown that platelet-activating factor acetylhydrolases (PAF-AH) are the main endogenous PLA2 involved in degradation of PtdCho-IP. The present study shows that the PtdCho-IP are also subject to hydrolysis by group IIA, V and X secretory PLA2, which also have a wide peripheral tissue distribution...
May 20, 2017: Lipids
https://www.readbyqxmd.com/read/28528422/5-ala-fluorescence-guided-endoscopic-surgery-for-mixed-germ-cell-tumors
#12
Junichi Takeda, Masahiro Nonaka, Yi Li, Yumiko Komori, Takamasa Kamei, Ryoichi Iwata, Tetsuo Hashiba, Kunikazu Yoshimura, Akio Asai
5-Aminolevulinic acid (5-ALA) fluorescence-guided surgery is widely used for detection and planning of resection of malignant gliomas and other brain tumors. However, no reports have described 5-ALA fluorescence-guided surgery or direct visualization of germ cell tumors. Here, we report two cases of germ cell tumors in which a positive 5-ALA fluorescent signal was visualized with a neuroendoscope. Both cases had a tumor in the pineal region that was associated with hydrocephalus. The patients underwent surgery after administration of 5-ALA...
May 20, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28528383/pretreatment-of-hardwood-and-miscanthus-with-trametes-versicolor-for-bioenergy-conversion-and-densification-strategies
#13
Ryan M Kalinoski, Hector D Flores, Sunil Thapa, Erin R Tuegel, Michael A Bilek, Evelin Y Reyes-Mendez, Michael J West, Tim J Dumonceaux, Thomas Canam
The pretreatment of plant biomass negatively impacts the economics of many bioenergy and bioproduct processes due to the thermochemical requirements for deconstruction of lignocelluluose. An effective strategy to reduce these severity requirements is to pretreat the biomass with white-rot fungi, such as Trametes versicolor, which have the innate ability to deconstruct lignocellulose with a suite of specialized enzymes. In the present study, the effects of 12 weeks of pretreatment with a wild-type strain (52J) and a cellobiose dehydrogenase-deficient strain (m4D) of T...
May 20, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28528363/caffeic-acid-phenethyl-ester-is-protective-in-experimental-ulcerative-colitis-via-reduction-in-levels-of-pro-inflammatory-mediators-and-enhancement-of-epithelial-barrier-function
#14
Mohammed N Khan, Majella E Lane, Paul A McCarron, Murtaza M Tambuwala
BACKGROUND: Inhibition of the nuclear factor kappa beta (NF-κβ) pathway has been proposed as a therapeutic target due to its key role in the expression of pro-inflammatory genes, including pro-inflammatory cytokines, chemokines, and adhesion molecules. Caffeic acid phenethyl ester (CAPE) is a naturally occurring anti-inflammatory agent, found in propolis, and has been reported as a specific inhibitor of NF-κβ. However, the impact of CAPE on levels of myeloperoxidases (MPO) and pro-inflammatory cytokines during inflammation is not clear...
May 20, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28528342/an-insight-into-the-changes-in-skin-texture-and-properties-following-dietary-intervention-with-a-nutricosmeceutical-containing-a-blend-of-collagen-bioactive-peptides-and-antioxidants
#15
Licia Genovese, Andrea Corbo, Sara Sibilla
BACKGROUND: Skin aging is a multifactorial phenomenon which causes alterations in skin physiological functions and, most visibly, phenotypic changes. In particular, during the aging process, hyaluronic acid, collagen, and elastin fibers undergo structural and functional changes. AIMS: This study aimed to give an insight into the photo-protective benefits and efficacy of an oral liquid nutricosmeceutical containing collagen bioactive peptides and antioxidants to counteract the signs of aging...
May 20, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28528322/very-low-doses-of-heavy-oxygen-ion-radiation-induce-premature-ovarian-failure
#16
Birendra Mishra, Ryan Ripperdan, Laura Ortiz, Ulrike Luderer
Astronauts are exposed to charged particles during space travel, and charged particles are also used for cancer radiotherapy. Premature ovarian failure is a well-known side-effect of conventional, low linear energy transfer (LET) cancer radiotherapy, but little is known about the effects of high LET charged particles on the ovary. We hypothesized that lower LET (16.5 keV/µm) oxygen particles would be less damaging to the ovary than we previously found for iron (LET=179 keV/µm). Adult female mice were irradiated with 0, 5, 30, or 50 cGy oxygen ions or 50 cGy oxygen plus dietary supplementation with the antioxidant alpha lipoic acid (ALA)...
May 20, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28528321/omega-3-fatty-acids-lipids-and-apoe-lipidation-in-alzheimer-s-disease-a-rationale-for-multi-nutrient-dementia-prevention
#17
Marcus O Grimm, Daniel Michaelson, Tobias Hartmann
In the last decade it has become obvious that Alzheimer's disease (AD) is closely linked to changes in lipids or lipid metabolism. One of the main pathological hallmarks of AD is amyloid-β (Aβ) deposition. Aβ is derived from sequential proteolytic processing of the amyloid precursor protein (APP). Interestingly, both, the APP and all APP secretases are transmembrane proteins which cleave APP close to and in the lipid bilayer. Moreover, apolipoprotein E4 (apoE4) has been identified as the most prevalent genetic risk factor for AD...
May 20, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28528318/metabolic-profiling-of-goldfish-carassius-auratis-after-long-term-glyphosate-based-herbicide-exposure
#18
Ming-Hui Li, Ling-Yu Ruan, Jin-Wei Zhou, Yong-Hong Fu, Lei Jiang, He Zhao, Jun-Song Wang
Glyphosate is an efficient herbicide widely used worldwide. However, its toxicity to non-targeted organisms has not been fully elucidated. In this study, the toxicity of glyphosate-based herbicide was evaluated on goldfish (Carassius auratus) after long-term exposure. Tissues of brains, kidneys and livers were collected and submitted to NMR-based metabolomics analysis and histopathological inspection. Plasma was collected and the blood biochemical indexes of AST, ALT, BUN, CRE, LDH, SOD, GSH-Px, GR and MDA were measured...
May 13, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28528314/development-of-a-macroporous-ceramic-passive-sampler-for-the-monitoring-of-cytostatic-drugs-in-water
#19
Helena Franquet-Griell, Victor Pueyo, Jorge Silva, Victor M Orera, Silvia Lacorte
The aim of this study was to develop and calibrate a macroporous ceramic passive sampler (MCPS) for the monitoring of anticancer drugs in wastewater. This system was designed by the Spanish Research Council (CSIC) and consists in a porous ceramic tube to allow a high diffusion of contaminants. The MCPS has been calibrated for 16 cytostatic drugs over time periods up to 9 d in spiked water under controlled laboratory conditions. Optimal uptake was accomplished for 7 compounds, namely ifosfamide, cyclophosphamide, capecitabine, prednisone, megestrol, cyproterone and mycophenolic acid, whereas cytarabine was not adsorbed in the receiving phase and the rest were hydrolyzed over the deployment period...
May 11, 2017: Chemosphere
https://www.readbyqxmd.com/read/28528311/rapid-screening-and-identification-of-chemical-hazards-in-surface-and-drinking-water-using-high-resolution-mass-spectrometry-and-a-case-control-filter
#20
Sarit L Kaserzon, Amy L Heffernan, Kristie Thompson, Jochen F Mueller, Maria Jose Gomez Ramos
Access to clean, safe drinking water poses a serious challenge to regulators, and requires analytical strategies capable of rapid screening and identification of potentially hazardous chemicals, specifically in situations when threats to water quality or security require rapid investigations and potential response. This study describes a fast and efficient chemical hazard screening strategy for characterising trace levels of polar organic contaminants in water matrices, based on liquid chromatography high resolution mass spectrometry with post-acquisition 'case-control' data processing...
May 12, 2017: Chemosphere
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