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https://www.readbyqxmd.com/read/28324274/bioavailability-of-generic-0-05-difluprednate-emulsion-in-the-aqueous-humor-cornea-and-conjunctiva-of-new-zealand-rabbits-after-a-single-dose-compared-with-commercial-difluprednate
#1
Arieh Mercado-Sesma, Angélica Contreras-Rubio, Leopoldo Baiza-Durán, Oscar Olvera-Montaño, Mónica Miranda-Robles, José Bonilla-García
BACKGROUND: To determine the concentration after a single dose of generic 0.05% difluprednate and commercial difluprednate in the aqueous humor, cornea, and conjunctiva of New Zealand rabbits, a preclinical study in 72 male New Zealand white rabbits was performed. A single dose (50 μL) of two 0.05% difluprednate ophthalmic formulations was instilled in both eyes. Conjunctiva, cornea, and aqueous humor samples were collected at nine time points over 8 h (four animals per time point)...
December 2017: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/28324207/fructooligosaccharide-intake-promotes-epigenetic-changes-in-the-intestinal-mucosa-in-growing-and-ageing-rats
#2
Glaucia Carielo Lima, Vivian Cristine Correa Vieira, Cinthia Baú Betim Cazarin, Rafaela da Rosa Ribeiro, Stanislau Bogusz Junior, Cibele Lima de Albuquerque, Ramon Oliveira Vidal, Claudia Cardoso Netto, Áureo Tatsumi Yamada, Fabio Augusto, Mário Roberto Maróstica Junior
PURPOSE: The aim of this study was to investigate the relationship between fructooligosaccharide (FOS) intake at different life stages of Wistar rats and its stimulatory effects on intestinal parameters. METHODS: Recently weaned and ageing female rats were divided into growing and ageing treatments, which were fed diets that partially replaced sucrose with FOS for 12 weeks. RESULTS: Dietary FOS intake induced a significant increase in the numbers of Bifidobacterium and Lactobacillus in growing rats...
March 21, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28317768/effect-of-xanthan-gum-on-the-release-of-strawberry-flavor-in-formulated-soy-beverage
#3
Jiao Xu, Zhiyong He, Maomao Zeng, Bingbing Li, Fang Qin, Linxiang Wang, Shengfang Wu, Jie Chen
The effects of xanthan gum on the release of strawberry flavor compounds in formulated soy protein isolate (SPI) beverage were investigated by headspace gas chromatography (GC). Seven strawberry flavor compounds (limonene, ethyl hexanoate, (Z)-3-hexenyl acetate, ethyl 2-methylbutanoate, ethyl butanoate, (Z)-3-hexen-1-ol and diacetyl) could be detected by GC and hence analyzed the gas-matrix partition coefficients (K). The release of flavor compounds was restrained in SPI and/or xanthan gum solution. The retention of (Z)-3-hexen-1-ol, limonene and diacetyl significantly changed (p<0...
August 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28315153/effects-of-histone-deacetylase-inhibitory-prodrugs-on-epigenetic-changes-and-dna-damage-response-in-tumor-and-heart-of-glioblastoma-xenograft
#4
Nataly Tarasenko, Abraham Nudelman, Gabriela Rozic, Suzanne M Cutts, Ada Rephaeli
The histone deacetylase (HDAC) inhibitory prodrugs of butyric (AN7) and valproic (AN446) acids, which release the active acids upon metabolic degradation, were studied examining their differential effects on the viability, HDAC inhibitory activity and the DNA damage response (DDR), in glioblastoma cell and normal human astrocytes (NHAs). In xenografts of glioblastoma, AN7 or AN446 given or the combination of each of them with Dox augmented the anticancer activity of Dox and protected the heart from its toxicity...
March 17, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28315058/improving-egsb-reactor-performance-for-simultaneous-bioenergy-and-organic-acid-production-from-cheese-whey-via-continuous-biological-h2-production
#5
Lucas Rodrigues Ramos, Edson Luiz Silva
OBJECTIVES: To evaluate the influence of hydraulic retention time (HRT) and cheese whey (CW) substrate concentration (15 and 25 g lactose l(-1)) on the performance of EGSB reactors (R15 and R25, respectively) for H2 production. RESULTS: A decrease in the HRT from 8 to 4 h favored the H2 yield and H2 production rate (HPR) in R15, with maximum values of 0.86 ± 0.11 mmol H2 g COD(-1) and 0.23 ± 0.024 l H2 h(-1) l(-1), respectively. H2 production in R25 was also favored at a HRT of 4 h, with maximum yield and HPR values of 0...
March 17, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28315049/antihypertensive-effects-of-probiotics
#6
REVIEW
Iñaki Robles-Vera, Marta Toral, Miguel Romero, Rosario Jiménez, Manuel Sánchez, Francisco Pérez-Vizcaíno, Juan Duarte
PURPOSE OF REVIEW: The present review focuses in the hypertension-associated changes in the microbiota and the current insights regarding the impact of probiotics on blood pressure in animal models and in human hypertensive patients. RECENT FINDINGS: Gut dysbiosis in hypertension is characterized by (i) the gut microbioma that is less diverse and less rich with an increased Firmicutes/Bacteroidetes ratio and (ii) a decrease in acetate- and butyrate-producing bacteria and an increase in lactate-producing bacterial populations...
April 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28304245/kineothrix-alysoides-gen-nov-sp-nov-a-saccharolytic-butyrate-producer-within-the-family-lachnospiraceae
#7
Kelly Nicole Haas, Jeffrey L Blanchard
An anaerobic, saccharolytic, spore-forming, butyrate-producing bacterium, strain KNHs209T, was isolated from a switchgrass microcosm seeded with forest soil. Cells were highly motile rods, often forming long filamentous chains which were easily observed moving under the microscope. Its closest phylogenetic relative was Eisenbergiella tayi (16S rRNA gene sequence identity 94.2 %), although it was easily distinguishable based on its morphology and physiology. Whole-genome sequencing enabled development of a minimal medium, and also suggested that the organism is capable of fixing nitrogen...
February 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28303760/intrinsic-gas-production-kinetics-of-selected-intermediates-in-anaerobic-filters-for-demand-orientated-energy-supply
#8
Johannes Hagen Krümpel, Lukas Illi, Andreas Lemmer
In consequence of a growing share of solar and wind power, recent research on biogas production highlighted a need for demand-orientated, flexible gas production to provide grid services and enable a decentralized stabilization of the electricity infrastructure. Two-staged anaerobic digestion is particularly suitable for shifting the methane production into times of higher demand due to the spatio-temporal separation of hydrolysis and methanogenesis. To provide a basis for predicting gas production in an Anaerobic Filter, kinetic parameters of gas production have been determined experimentally in this study...
March 17, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28302729/phagocytosis-dependent-ketogenesis-in-retinal-pigment-epithelium
#9
Juan Reyes-Reveles, Anuradha Dhingra, Desiree Alexander, Alvina Bragin, Nancy J Philp, Kathleen Boesze-Battaglia
Daily, the retinal pigment epithelium (RPE) ingests a bolus of lipid and protein in the form of phagocytized photoreceptor outer segments (OS). The RPE like the liver expresses enzymes required for fatty acid oxidation (FAO) and ketogenesis. This suggests that these pathways play a role in the disposal of lipids from ingested OS as well as providing a mechanism for recycling metabolic intermediates back to the outer retina. In this study, we examined whether OS phagocytosis was linked to ketogenesis. We found increased levels of β-hydroxy-butyrate (β-HB) in the apical media following ingestion of OS by human fetal RPE and ARPE19 cells cultured on transwell inserts...
March 16, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28299854/induction-of-a-transient-acidosis-in-the-rumen-simulation-technique
#10
M Eger, S Riede, G Breves
Feeding high concentrate diets to cattle results in an enhanced production of short-chain fatty acids by the micro-organisms in the rumen. Excessive fermentation might result in subclinical or clinical rumen acidosis, characterized by low pH, alterations in the microbial community and lactate production. Here, we provide an in vitro model of a severe rumen acidosis. A transient acidosis was induced in the rumen simulation technique by lowering bicarbonate, dihydrogen phosphate and hydrogen phosphate concentrations in the artificial saliva while providing a concentrate-to-forage ratio of 70:30...
March 16, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28297748/bioconversion-using-lactic-acid-bacteria-ginsenosides-gaba-and-phenolic-compounds
#11
REVIEW
Na-Kyoung Lee, Hyun-Dong Paik
Lactic acid bacteria (LAB) are used as fermentation starters in vegetable and dairy products and influence the pH and flavors of foods. For many centuries, LAB have been used to manufacture fermented foods; therefore, they are generally regarded as safe. LAB produce various substances such as lactic acid, β-glucosidase, or β-galactosidase, making them useful as fermentation starters. Existing functional substances have been tried as fermentation substrates for better bioavailability or other functions. Representative materials that were bioconverted using LAB have been reported and include minor ginsenoside, γ-amino butyric acid, equol, aglycone, bioactive isoflavones, genistein, daidzein, and others...
March 15, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28295557/parachlorophenylalanine-induced-5-ht-depletion-alters-behavioural-and-brain-neurotransmitters-levels-in-6-hertz-psychomotor-seizure-model-in-mice
#12
Kausar Jahan, Krishna K Pillai, Divya Vohora
The present study was designed to investigate the role of serotonin and other neurotransmitters namely dopamine (DA), histamine, noradrenaline (NA), glutamate and γ-amino-butyric acid (GABA) in the 6-hertz (6 Hz) induced psychomotor seizures in Swiss albino mice. Parachlorophenylalanine (PCPA, 300 mg/kg/day, i.p for 3 days) treated mice were given 6 Hz stimulation. Sodium valproate (SVP) [200 mg/kg/day, p.o for 3 days] was used as a reference anti-epileptic drug. The behavioral changes induced by 6Hz including increased rearing and grooming, Straub's tail, behavioral arrest, stun position etc were amplified by PCPA...
March 10, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28295202/in-situ-esterification-and-extractive-fermentation-for-butyl-butyrate-production-with-clostridium-tyrobutyricum
#13
Zhong-Tian Zhang, Steven Taylor, Yi Wang
Butyl butyrate (BB) is a valuable chemical that can be used as flavor, fragrance, extractant, etc. in various industries. Meanwhile, BB can also be used as a fuel source with excellent compatibility as gasoline, aviation kerosene and diesel components. The conventional industrial production of BB is highly energy-consuming and generates various environmental pollutants. Recently, there have been tremendous interests in producing BB from renewable resources through biological routes. In this study, based on the fermentation using the hyper-butyrate producing strain Clostridium tyrobutyricum ATCC 25755, efficient BB production through in situ esterification was achieved by supplementation of lipase and butanol into the fermentation...
March 15, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28288414/butyrate-induces-ros-mediated-apoptosis-by-modulating-mir-22-sirt-1-pathway-in-hepatic-cancer-cells
#14
Kishor Pant, Ajay K Yadav, Parul Gupta, Rakibul Islam, Anoop Saraya, Senthil K Venugopal
Butyrate is one of the short chain fatty acids, produced by the gut microbiota during anaerobic fermentation of dietary fibres. It has been shown that it can inhibit tumor progression via suppressing histone deacetylase and can induce apoptosis in cancer cells. However, the comprehensive pathway by which butyrate mediates apoptosis and growth arrest in cancer cells still remains unclear. In this study, the role of miR-22 in butyrate-mediated ROS release and induction of apoptosis was determined in hepatic cells...
March 7, 2017: Redox Biology
https://www.readbyqxmd.com/read/28287150/cooperative-growth-of-geobacter-sulfurreducens-and-clostridium-pasteurianum-with-subsequent-metabolic-shift-in-glycerol-fermentation
#15
Roman Moscoviz, Florence de Fouchécour, Gaëlle Santa-Catalina, Nicolas Bernet, Eric Trably
Interspecies electron transfer is a common way to couple metabolic energy balances between different species in mixed culture consortia. Direct interspecies electron transfer (DIET) mechanism has been recently characterised with Geobacter species which couple the electron balance with other species through physical contacts. Using this mechanism could be an efficient and cost-effective way to directly control redox balances in co-culture fermentation. The present study deals with a co-culture of Geobacter sulfurreducens and Clostridium pasteurianum during glycerol fermentation...
March 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28286121/high-glucose-enhances-camp-level-and-extracellular-signal-regulated-kinase-phosphorylation-in-chinese-hamster-ovary-cell-usage-of-br-camp-in-foreign-protein-%C3%AE-galactosidase-expression
#16
Hsiao-Hsien Lin, Tsung-Yih Lee, Ting-Wei Liu, Ching-Ping Tseng
Glucose is a carbon source for Chinese hamster ovary (CHO) cell growth, while low growth rate is considered to enhance the production of recombinant proteins. The present study reveals that glucose concentrations higher than 1 g/L reduce the growth rate and substantially increase in cAMP (∼300%) at a high glucose concentration (10 g/L). High glucose also enhances the phosphorylation of extracellular signal-regulated kinase (ERK) and p27(kip) by Western blot analysis. To determine whether the phosphorylation of ERK is involved in the mechanism, a cyclic-AMP dependent protein kinase A (PKA) inhibitor (H-8) or MEK (MAPKK) inhibitor (PD98059) was added to block ERK phosphorylation...
March 9, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28286025/preparations-based-on-minerals-extracts-of-calicotome-villosa-roots-and-bovine-butyrate-matter-evaluation-in-vitro-of-their-antifungal-activity
#17
B Barhouchi, S Aouadi, A Abdi
OBJECTIVE: The use of preparations based on minerals extracts of Calicotome villosa and butter is born from the misuse of drugs without specific microbiological analyzes. Seventeen different preparations were performed. The antibacterial and antifungal activities were determined on five bacteria and two fungi strains respectively. MATERIAL AND METHODS: C. villosa ashes are obtained by incineration of roots plant at 498°C for 4hours. They are analyzed to determine the shape of the particles and the mineral constituents by scanning electronic microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) techniques respectively...
March 10, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28286014/proteomics-based-network-analysis-characterizes-biological-processes-and-pathways-activated-by-preconditioned-mesenchymal-stem-cells-in-cardiac-repair-mechanisms
#18
Dario Di Silvestre, Francesca Brambilla, Giovanni Scardoni, Pietro Brunetti, Sara Motta, Marco Matteucci, Carlo Laudanna, Fabio A Recchia, Vincenzo Lionetti, Pierluigi Mauri
BACKGROUND: We have demonstrated that intramyocardial delivery of human mesenchymal stem cells preconditioned with a hyaluronan mixed ester of butyric and retinoic acid (MSCp(+)) is more effective in preventing the decay of regional myocardial contractility in a swine model of myocardial infarction (MI). However, the understanding of the role of MSCp(+) in proteomic remodeling of cardiac infarcted tissue is not complete. We therefore sought to perform a comprehensive analysis of the proteome of infarct remote (RZ) and border zone (BZ) of pigs treated with MSCp(+) or unconditioned stem cells...
March 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28285599/microbiome-and-metabolome-modifying-effects-of-several-cardiovascular-disease-interventions-in-apo-e-mice
#19
Paul M Ryan, Lis E E London, Trent C Bjorndahl, Rupasri Mandal, Kiera Murphy, Gerald F Fitzgerald, Fergus Shanahan, R Paul Ross, David S Wishart, Noel M Caplice, Catherine Stanton
BACKGROUND: There is strong evidence indicating that gut microbiota have the potential to modify, or be modified by the drugs and nutritional interventions that we rely upon. This study aims to characterize the compositional and functional effects of several nutritional, neutraceutical, and pharmaceutical cardiovascular disease interventions on the gut microbiome, through metagenomic and metabolomic approaches. Apolipoprotein-E-deficient mice were fed for 24 weeks either high-fat/cholesterol diet alone (control, HFC) or high-fat/cholesterol in conjunction with one of three dietary interventions, as follows: plant sterol ester (PSE), oat β-glucan (OBG) and bile salt hydrolase-active Lactobacillus reuteri APC 2587 (BSH), or the drug atorvastatin (STAT)...
March 13, 2017: Microbiome
https://www.readbyqxmd.com/read/28285516/investigation-on-key-molecules-of-hlb-induced-orange-juice-off-flavor
#20
Johannes Kiefl, Birgit Kohlenberg, Anja Hartmann, Katja Obst, Susanne Paetz, Gerhard E Krammer, Stephan Trautzsch
Orange fruits from Huanglongbing (HLB) infected trees do not fully mature and show a severe off-flavor described as bitter-harsh, metallic and less juicy and fruity. The investigation of juice from HLB infected (HLBOJ) and healthy control oranges (COJ) by gas chromatography mass spectrometry showed higher concentrations of fruity esters such as ethyl butyrate and ethyl 2-methylbutyrate, and soapy-waxy alkanals such as octanal and decanal in the COJ whereas the HLBOJ showed higher concentrations of green aldehydes like hexanal and degradation compounds of limonene and linalool like α-terpineol...
March 11, 2017: Journal of Agricultural and Food Chemistry
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