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https://www.readbyqxmd.com/read/29166531/a-polysaccharide-fraction-extracted-from-pleurotus-ostreatus-mycelial-biomass-inhibit-sarcoma-180-tumor
#1
Elisabeth Wisbeck, Jean M Facchini, Endi P Alves, Marcia L L Silveira, Regina M M Gern, Jorge L Ninow, Sandra A Furlan
Fungi of Pleurotus genus have attracted a great interest due to their medicinal properties such as anti-inflammatory, antimicrobial and antitumor. These properties are attributed mainly to polysaccharides synthesized by Pleurotus. This work aimed to study the mycelial growth of P. ostreatus in submerged culture, evaluating the influence of the initial concentration of substrate (20 and 40 g/L of glucose) and the pH (4 and 6) on kinetic parameters of production of biomass. The effectiveness of different doses (10, 30 and 50 mg/kg) of a mycelium polysaccharide fraction extracted from P...
2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29166372/placental-lipid-processing-in-response-to-a-maternal-high-fat-diet-and-diabetes-in-rats
#2
Eli J Louwagie, Tricia D Larsen, Angela L Wachal, Michelle L Baack
BACKGROUND: Diabetes and obesity during pregnancy impact the health of both mothers and developing babies. Prevention focuses on glycemic control, but increasing evidence implicates a role for lipids. Using a rat model, we showed that a maternal high-fat (HF) diet, increased perinatal morbidity and mortality, but lipid processing across the maternal-placental-fetal triad remained unstudied. We hypothesized that HF diet would disrupt placental lipid processing to exaggerate fuel-mediated consequences of diabetic pregnancy...
November 22, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29165990/uio-66-nh2-mof-nucleation-on-tio2-zno-and-al2o3-ald-treated-polymer-fibers-role-of-metal-oxide-on-mof-growth-and-catalytic-hydrolysis-of-chemical-warfare-agent-simulants
#3
Dennis T Lee, Junjie Zhao, Christopher J Oldham, Gregory W Peterson, Gregory N Parsons
Metal-organic frameworks (MOFs) chemically bound to polymeric microfibrous textiles show promising performance for many future applications. In particular, Zr-based UiO-66-family MOF-textiles have been shown to catalytically degrade highly toxic chemical warfare agents (CWAs), where favorable MOF/polymer bonding and adhesion are attained by placing a nanoscale metal-oxide layer on the polymer fiber preceding MOF growth. To date, however, the nucleation mechanism of Zr-based MOFs on different metal oxides and how product performance is affected are not well understood...
November 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29165729/polyphenols-from-euphorbia-pekinensis-inhibit-ages-formation-in-vitro-and-vessel-dilation-in-larval-zebrafish-in-vivo
#4
Ik-Soo Lee, Seung-Hyun Jung, Jin Sook Kim
To identify active compounds in the roots of Euphorbia pekinensis for treatment of diabetic complications, an active column fraction from a 70% EtOH extract of E. pekinensis root was purified by preparative reversed-phase high-performance liquid chromatography, leading to the isolation of a new ellagic acid derivative, 3,3'-di-O-methylellagic acid 4-O-(6"-O-galloyl)-β-D-galactopyranoside (1), along with three known compounds, geraniin (2), 3,3'-di-O-methylellagic acid 4-O-β-D-xylopyranoside (3), and ellagic acid 3,3'-dimethyl ether (4)...
November 17, 2017: Planta Medica
https://www.readbyqxmd.com/read/29165474/sugar-and-mineral-enriched-fraction-from-olive-mill-wastewater-for-promising-cosmeceutical-application-characterization-in-vitro-and-in-vivo-studies
#5
Maria Domenica Di Mauro, Barbara Tomasello, Roberta Carla Giardina, Sandro Dattilo, Veronica Mazzei, Fulvia Sinatra, Massimo Caruso, Nicola D'Antona, Marcella Renis
Nowadays, agro-food by-products represent a potential low-cost source of biologically active ingredients which have been paid significant attention as nutraceuticals, medicine, food and cosmetics. In a previous study we evaluated the total sugars, metals and polyphenols of olive mill wastewater (OMWW) from a Cerasuola olive cultivar. In the present work we selectively recovered a sugar and mineral enriched fraction (SMEF) from Cerasuola OMWW by a green adsorption/desorption process. The SMEF was mainly found to be composed of monosaccharides and potassium by HPLC-ELSD and ICP-MS...
November 22, 2017: Food & Function
https://www.readbyqxmd.com/read/29165455/isomer-specific-detection-in-the-uv-photodissociation-of-the-propargyl-radical-by-chirped-pulse-mm-wave-spectroscopy-in-a-pulsed-quasi-uniform-flow
#6
Bernadette M Broderick, Nicolas Suas-David, Nureshan Dias, Arthur G Suits
Isomer-specific detection and product branching fractions in the UV photodissociation of the propargyl radical is achieved through the use of chirped-pulse Fourier-transform mm-wave spectroscopy in a pulsed quasi-uniform flow (CPUF). Propargyl radicals are produced in the 193 nm photodissociation of 1,2-butadiene. Absorption of a second photon leads to H atom elimination giving three possible C3H2 isomers: singlets cyclopropenylidene (c-C3H2) and propadienylidene (l-C3H2), and triplet propargylene ((3)HCCCH)...
November 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29165446/up-conversion-luminescence-coupled-to-plasmonic-gold-nanorods-for-light-harvesting-and-hydrogen-production
#7
H AlGhamdi, K Katsiev, A K Wahab, J Llorca, H Idriss
The conversion of infrared light to visible-light which allows a larger fraction of sun-light to be used is needed to improve light-harvesting. In this work a tri-functional material composed of an up-converter (NaYF4-Yb-Tm), plasmonic gold nanorods and CdS was made photocatalytically active using 980 nm wavelength light for the reduction of H(+) to H2.
November 22, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29164679/novel-antioxidant-and-anti-inflammatory-peptides-from-the-siamese-crocodile-crocodylus-siamensis-hemoglobin-hydrolysate
#8
Jiraporn Lueangsakulthai, Santi Phosri, Tinnakorn Theansungnoen, Nisachon Jangpromma, Theeranan Temsiripong, John E Mckendrick, Watcharee Khunkitti, Sompong Klaynongsruang
Novel antioxidant and anti-inflammatory peptides were isolated from hydrolysates of Siamese crocodile (Crocodylus siamensis) hemoglobin. Crocodylus siamensis hemoglobin hydrolysates (CHHs) were obtained by pepsin digestion at different incubation times (2, 4, 6 and 8 H) at 37 °C and subjected to antioxidant and anti-inflammatory activity assessment. CHH obtained by 2-H hydrolysis (2H-CHH) showed the highest anti-inflammatory activity with respect to decreasing nitric oxide (NO) production, while the strongest antioxidant activity was found for 6-H hydrolysis (6H-CHH) against nitric oxide radicals...
November 22, 2017: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/29164102/anti-tumor-and-anti-angiogenic-ergosterols-from-ganoderma-lucidum
#9
Shaodan Chen, Tianqiao Yong, Yifang Zhang, Jiyan Su, Chunwei Jiao, Yizhen Xie
This study was carried out to isolate chemical constituents from the lipid enriched fraction of Ganoderma lucidum extract and to evaluate their anti-proliferative effect on tumor cells and human umbilical vein endothelial cells (HUVECs). Ergosterol derivatives (1-14) were isolated and purified from the lipid enriched fraction of G. lucidum. Their chemical structures were established by spectroscopic analyses or by comparison of mass and NMR spectral data with those reported previously. Amongst, compound 1 was purified and identified as a new one...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/29163465/b-cell-activating-factor-and-the-b-cell-compartment-in-hiv-siv-infection
#10
REVIEW
Gwenoline Borhis, Maria Trovato, Nada Chaoul, Hany M Ibrahim, Yolande Richard
With the goal to design effective HIV vaccines, intensive studies focused on broadly neutralizing antibodies, which arise in a fraction of HIV-infected people. Apart from identifying new vulnerability sites in the viral envelope proteins, these studies have shown that a fraction of these antibodies are produced by self/poly-reactive B-cells. These findings prompted us to revisit the B-cell differentiation and selection process during HIV/SIV infection and to consider B-cells as active players possibly shaping the helper T-cell program within germinal centers (GCs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163431/camelina-seed-supplementation-at-two-dietary-fat-levels-change-ruminal-bacterial-community-composition-in-a-dual-flow-continuous-culture-system
#11
Xiaoxia Dai, Paul J Weimer, Kimberly A Dill-McFarland, Virginia L N Brandao, Garret Suen, Antonio P Faciola
This experiment aimed to determine the effects of camelina seed (CS) supplementation at different dietary fat levels on ruminal bacterial community composition and how it relates to changes in ruminal fermentation in a dual-flow continuous culture system. Diets were randomly assigned to 8 fermenters (1,200-1,250 mL) in a 2 × 2 factorial arrangement of treatments in a replicated 4 × 4 Latin square with four 10-day experimental periods that consisted of 7 days for diet adaptation and 3 days for sample collection...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29163386/evaluating-production-of-cyclopentyl-tetraethers-by-marine-group-ii-euryarchaeota-in-the-pearl-river-estuary-and-coastal-south-china-sea-potential-impact-on-the-tex86-paleothermometer
#12
Jin-Xiang Wang, Wei Xie, Yi Ge Zhang, Travis B Meador, Chuanlun L Zhang
TEX86 [TetraEther indeX of glycerol dialkyl glycerol tetraethers (GDGTs) with 86 carbon atoms] has been widely applied to reconstruct (paleo-) sea surface temperature. Marine Group I (MG-I) Thaumarchaeota were thought to be the primary source of GDGTs constituting the TEX86 formula; however, recent research has suggested that Marine Group II (MG-II) Euryarchaeota may also contribute significantly to the GDGT pool in the ocean. Little is known regarding the potential impact of MG-II Euryarchaeota-derived GDGTs on TEX86 values recorded in marine sediments...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29162234/impact-of-co2-solvent-separators-on-the-degradation-of-benzyl-2-3-dihydroxypiperidine-1-carboxylate-during-preparative-supercritical-fluid-chromatographic-sfc-purification
#13
Kathiravan Asokan, Harshavardhan Naidu, Ratalababu Madam, Khaja Mohiuddin Shaikh, Manjunath Reddy, Hemantha Kumar, Pravin S Shirude, Muruganantham Rajendran, Ramakanth Sarabu, Dauh-Rurng Wu, Lakshmikant Bajpai, Yingru Zhang
During a preparative separation of the cis enantiomeric pair of benzyl-2,3-dihydroxypiperidine-1-carboxylate using supercritical-fluid chromatography (SFC) with methanol modifier, significant degradation of the products in the collected fractions was observed when a Waters SFC-350(®) (Milford, MA, USA) was used, but same was not observed when a Waters SFC-80q(®) (Milford, MA, USA) was used. Through a systematic investigation, we discovered that the compound degraded over time under an acidic condition created by the formation of methyl carbonic acid from methanol and CO2...
November 14, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29161678/preliminary-evaluation-of-pathogenic-bacteria-loading-on-organic-municipal-solid-waste-compost-and-vermicompost
#14
Nuhaa Soobhany
The use of composts or vermicomposts derived from organic fraction of Municipal Solid Waste (OFMSW) brought about certain disagreement in terms of high level of bacterial pathogens, thereby surpassing the legal restrictions. This preliminary study was undertaken to compare the evolution of pathogenic bacteria on OFMSW compost against vermicompost (generated by Eudrilus eugeniae) with promises of achieving sanitation goals. Analysis to quality data showed that OFMSW vermicomposting caused a moderately higher reduction in total coliforms in contrast to composting...
November 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29160901/dietary-advanced-glycation-end-products-have-sex-and-age-dependent-effects-on-vertebral-bone-microstructure-and-mechanical-function-in-mice
#15
Svenja Illien-Jünger, Paolo Palacio-Mancheno, William F Kindschuh, Xue Chen, Grazyna E Sroga, Deepak Vashishth, James C Iatridis
Back pain is a leading cause of global disability that can arise from vertebral fracture and osteoporosis. While poor general health and obesity are among the strongest risk factors for back pain, there is remarkably little known about how diet influences spinal diseases. Advanced glycation endproducts (AGEs) are implicated in increased fracture risk, yet no studies investigated how dietary AGEs affect spinal health. We tested the hypothesis that high dietary AGE ingestion will diminish vertebral structure and function in a sex- and age-dependent manner...
November 21, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29160733/potential-impact-of-inorganic-nanoparticles-on-macronutrient-digestion-titanium-dioxide-nanoparticles-slightly-reduce-lipid-digestion-under-simulated-gastrointestinal-conditions
#16
Qian Li, Ti Li, Chengmei Liu, Glen DeLoid, Georgios Pyrgiotakis, Philip Demokritou, Ruojie Zhang, Hang Xiao, David Julian McClements
Titanium dioxide (TiO2) particles are used in some food products to alter their optical properties, such as whiteness or brightness. These additives typically contain a population of TiO2 nanoparticles (d < 100 nm), which has led to concern about their potential toxicity. The objective of this study was to examine the impact of TiO2 particles on the gastrointestinal fate of oil-in-water emulsions using a simulated gastrointestinal tract (GIT) that includes mouth, stomach, and small intestine phases...
November 21, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/29159147/osmotic-conditions-could-promote-scfv-antibody-production-in-the-escherichia-coli-hb2151
#17
Ali Mesgari-Shadi, Mohammad Hossein Sarrafzadeh
Introduction: Single chain variable fragment (scFv) antibodies are reduced forms of the whole antibodies that could be regarded as an alternative tool for diagnostic and therapeutic purposes. The optimization of processes and environmental conditions is necessary to increase the production yields and enhance the productivity. This can result in a cost-effective process and respond to the high demand for these antibodies. Methods: In this research, physical and chemical factors influencing the batch fermentation was investigated in 50 mL batch tubes using minimum media to find the optimum conditions for production of a single chain variable fragment antibody in the Escherichia coli HB2151...
2017: BioImpacts: BI
https://www.readbyqxmd.com/read/29158560/field-sampling-marine-plankton-for-biodiscovery
#18
Richard Andre Ingebrigtsen, Espen Hansen, Jeanette Hammer Andersen, Hans Christian Eilertsen
Microalgae and plankton can be a rich source of bioactivity. However, induction of secondary metabolite production in lab conditions can be difficult. One simple way of bypassing this issue is to collect biomass in the field and screen for bioactivity. Therefore, bulk net samples from three areas along the coast of northern Norway and Spitsbergen were collected, extracted and fractionated. Biomass samples from a strain of a mass-cultivated diatom Porosira glacialis were used as a reference for comparison to field samples...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29157807/a-comparative-proteomic-study-of-secretomes-in-kaempferitrin-treated-ctx-tna2-astrocytic-cells
#19
Wei-Chi Ku, Yi-Ling Chang, Sheng-Fa Wu, Hui-Nung Shih, Yew-Min Tzeng, Hui-Ru Kuo, Kai-Ming Chang, Dinesh Chandra Agrawal, Bing-Lan Liu, Chin-An Chang, Siendong Huang, Meng-Jen Lee
ETHNOPHARMACOLOGICAL RELEVANCE: Kaempferitrin is extracted in significantly high quantities from the leaves of Cinnamomum osmophloeum (C.O) and Bauhinia forficata, and are used as an antidiabetic herbal remedy in China and Brazil. Commercial product using dry Cinnamomum osmophloeum leaves has been sold locally in Taiwan. Oral administration of kaempferitrin reduced blood sugar in diabetic rats. AIM OF THE STUDY: Though previously demonstrated to activate the classical insulin signaling pathways, a mechanism for kaempferitrin is still not fully understood...
December 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29156345/the-extended-production-of-uv-induced-reactive-oxygen-species-in-l929-fibroblasts-is-attenuated-by-posttreatment-with-arrabidaea-chica-through-scavenging-mechanisms
#20
Fabianne Martins Ribeiro, Hélito Volpato, Danielle Lazarin-Bidóia, Vânia Cristina Desoti, Rebeca Oliveira de Souza, Maria José Vieira Fonseca, Tânia Ueda-Nakamura, Celso Vataru Nakamura, Sueli de Oliveira Silva
Ultraviolet radiation (UVR) exposure causes various injurious effects to human skin by generating reactive oxygen species (ROS). Excessive ROS production can lead to oxidative stress which may damage cellular components like lipids and proteins and causing photoaging. The use of natural photochemopreventive agents with antioxidant properties is an important alternative to improve the effectiveness of sunscreens and reduce skin photodamage. A crude extract (CE) from the leaves of Arrabidaea chica underwent partition by a liquid-liquid method...
November 17, 2017: Journal of Photochemistry and Photobiology. B, Biology
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