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https://www.readbyqxmd.com/read/27933737/testing-the-influence-of-surfactant-based-wound-dressings-on-proteinase-activity
#1
Sunyoung Jeong, Gregory S Schultz, Daniel J Gibson
Proteinases are enzymes that can digest other proteins. In chronic wounds, a sub-class of these enzymes with the ability to degrade the extracellular matrix (matrix metalloproteinases, MMPs) have been found to both inhibit healing and to be able to aid in enzymatically debriding a wound. Enzymatic debridement using the enzymes present in a wound is generally called autolytic debridement. Clinicians seeking to employ autolytic debridement typically use occlusive materials such as medical honey, alginate dressings and other occlusive dressings...
December 8, 2016: International Wound Journal
https://www.readbyqxmd.com/read/27933609/the-role-of-electrical-and-jasmonate-signalling-in-the-recognition-of-captured-prey-in-the-carnivorous-sundew-plant-drosera-capensis
#2
Miroslav Krausko, Zdeněk Perutka, Marek Šebela, Olga Šamajová, Jozef Šamaj, Ondřej Novák, Andrej Pavlovič
The carnivorous sundew plant (Drosera capensis) captures prey using sticky tentacles. We investigated the tentacle and trap reactions in response to the electrical and jasmonate signalling evoked by different stimuli to reveal how carnivorous sundews recognize digestible captured prey in their traps. We measured the electrical signals, phytohormone concentration, enzyme activities and Chla fluorescence in response to mechanical stimulation, wounding or insect feeding in local and systemic traps. Seven new proteins in the digestive fluid were identified using mass spectrometry...
December 9, 2016: New Phytologist
https://www.readbyqxmd.com/read/27933453/engineering-of-escherichia-coli-to-facilitate-efficient-utilization-of-isomaltose-and-panose-in-industrial-glucose-feedstock
#3
Kenji Abe, Akio Kuroda, Ryo Takeshita
Industrial glucose feedstock prepared by enzymatic digestion of starch typically contains significant amounts of disaccharides such as maltose and isomaltose and trisaccharides such as maltotriose and panose. Maltose and maltosaccharides can be utilized in Escherichia coli fermentation using industrial glucose feedstock because there is an intrinsic assimilation pathway for these sugars. However, saccharides that contain α-1,6 bonds, such as isomaltose and panose, are still present after fermentation because there is no metabolic pathway for these sugars...
December 8, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27933433/full-length-infectious-clone-of-an-iranian-isolate-of-chicken-anemia-virus
#4
Amir Kaffashi, Fatemeh Eshratabadi, Abdelhamed Shoushtari
An Iranian field strain of chicken anemia virus (CAV), designated IR CAV, was isolated in the Marek's disease virus-transformed lymphoblastoid cell line MDCC-MSB1 (MSB1) culture for the first time. The full-length CAV DNA of this strain was cloned in the bacterial plasmid pTZ57R/T to create the molecular clone pTZ-CAV. The nucleotide and deduced amino acid sequences of viral proteins of IR CAV were compared with those of representative CAV sequences including reference and commercial vaccine strains. IR CAV was not related to vaccine strains and also found to have glutamine at positions 139 and 144 confirming previous studies in which such mutations were associated with a slow rate of virus spread in cell culture...
December 8, 2016: Virus Genes
https://www.readbyqxmd.com/read/27933160/post-sensitization-administration-of-non-digestible-oligosaccharides-and-bifidobacterium-breve-m-16v-reduces-allergic-symptoms-in-mice
#5
Betty C A M van Esch, Suzanne Abbring, Mara A P Diks, Gemma M Dingjan, Lucien F Harthoorn, A Paul Vos, Johan Garssen
To support dietary management of severe cow's milk allergic infants, a synbiotic mixture of non-digestible oligosaccharides and Bifidobacterium breve M-16V (B. breve) was designed from source materials that are completely cow's milk-free. It was investigated whether this specific synbiotic concept can reduce an established food allergic response in a research model for hen's egg allergy. Mice were orally sensitized once a week for 5 weeks to ovalbumin (OVA) using cholera toxin (CT) as an adjuvant. Non-sensitized mice received CT in PBS only...
June 2016: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/27933139/the-neuromuscular-system-of-pycnophyes-kielensis-kinorhyncha-allomalorhagida-investigated-by-confocal-laser-scanning-microscopy
#6
Andreas Altenburger
BACKGROUND: Kinorhynchs are ecdysozoan animals with a phylogenetic position close to priapulids and loriciferans. To understand the nature of segmentation within Kinorhyncha and to infer a probable ancestry of segmentation within the last common ancestor of Ecdysozoa, the musculature and the nervous system of the allomalorhagid kinorhynch Pycnophyes kielensis were investigated by use of immunohistochemistry, confocal laser scanning microscopy, and 3D reconstruction software. RESULTS: The kinorhynch body plan comprises 11 trunk segments...
2016: EvoDevo
https://www.readbyqxmd.com/read/27933039/the-contribution-of-mathematical-modeling-to-understanding-dynamic-aspects-of-rumen-metabolism
#7
André Bannink, Henk J van Lingen, Jennifer L Ellis, James France, Jan Dijkstra
All mechanistic rumen models cover the main drivers of variation in rumen function, which are feed intake, the differences between feedstuffs and feeds in their intrinsic rumen degradation characteristics, and fractional outflow rate of fluid and particulate matter. Dynamic modeling approaches are best suited to the prediction of more nuanced responses in rumen metabolism, and represent the dynamics of the interactions between substrates and micro-organisms and inter-microbial interactions. The concepts of dynamics are discussed for the case of rumen starch digestion as influenced by starch intake rate and frequency of feed intake, and for the case of fermentation of fiber in the large intestine...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27932939/plant-defense-and-herbivore-counter-defense-benzoxazinoids-and-insect-herbivores
#8
REVIEW
Felipe C Wouters, Blair Blanchette, Jonathan Gershenzon, Daniel G Vassão
Benzoxazinoids are a class of indole-derived plant chemical defenses comprising compounds with a 2-hydroxy-2H-1,4-benzoxazin-3(4H)-one skeleton and their derivatives. These phytochemicals are widespread in grasses, including important cereal crops such as maize, wheat and rye, as well as a few dicot species, and display a wide range of antifeedant, insecticidal, antimicrobial, and allelopathic activities. Although their overall effects against insect herbivores are frequently reported, much less is known about how their modes of action specifically influence insect physiology...
2016: Phytochemistry Reviews: Proceedings of the Phytochemical Society of Europe
https://www.readbyqxmd.com/read/27932684/standardizing-the-microbiota-of-fish-used-in-research
#9
REVIEW
I N Vatsos
Little attention has been paid to the effects of fish microbiotas on the reproducibility and comparability of fish studies so far. Extrinsic and intrinsic factors, such as water quality, environmental microbial populations, diet, host genetic profile, gender, age and stress status, affect fish microbiotas and create significant inter- and intra-species variations. Fish microbiotas play critical roles in many key aspects of host physiology, such as protection against pathogens, digestion and development of the digestive tract and the local immune system...
December 8, 2016: Laboratory Animals
https://www.readbyqxmd.com/read/27932504/expression-of-cav1-3-calcium-channel-in-the-human-and-mouse-colon-post-transcriptional-inhibition-by-ifn%C3%AE
#10
Vijayababu M Radhakrishnan, Maryam M Gilpatrick, Nouralhoda Dehdashti, Pawel R Kiela, Fayez K Ghishan
It has been hypothesized that apically expressed L-type Ca(2+) channel Cav1.3 (encoded by CACNA1D gene) contributes towards an alternative TRPV6-independent route of intestinal epithelial Ca(2+) absorption, especially during digestion when high luminal concentration of Ca(2+) and other nutrients limit TRPV6 contribution. We and others have implicated altered expression and activity of key mediators of intestinal and renal Ca(2+) (re)absorption as contributors to negative systemic Ca2+ balance and bone loss in intestinal inflammation...
December 8, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/27932303/one-sample-one-shot-evaluation-of-sample-preparation-protocols-for-the-mass-spectrometric-proteome-analysis-of-human-bile-fluid-without-extensive-fractionation
#11
Dominik A Megger, Juliet Padden, Kristin Rosowski, Julian Uszkoreit, Thilo Bracht, Martin Eisenacher, Christian Gerges, Horst Neuhaus, Brigitte Schumacher, Jörg F Schlaak, Barbara Sitek
: The proteome analysis of bile fluid represents a promising strategy to identify biomarker candidates for various diseases of the hepatobiliary system. However, to obtain substantive results in biomarker discovery studies large patient cohorts necessarily need to be analyzed. Consequently, this would lead to an unmanageable number of samples to be analyzed if sample preparation protocols with extensive fractionation methods are applied. Hence, the performance of simple workflows allowing for "one sample, one shot" experiments have been evaluated in this study...
December 5, 2016: Journal of Proteomics
https://www.readbyqxmd.com/read/27932185/inferior-vena-cava-duodenal-drainage-in-pancreas-alone-transplantation-for-chronic-pancreatitis-a-case-report
#12
B H Choi, Y M Park, K H Yang, C W Chu, J H Ryu
Enteric drainage has been the main trend in solitary pancreas transplantation. Compared with bladder drainage, it does not cause metabolic or urologic complications, but there is no way to perform immunologic monitoring, except by graft pancreas biopsy. Additionally, although portal drainage of the graft vein is considered physiological drainage, it has more of a risk for surgical complications. To overcome these disadvantages, we successfully performed inferior vena cava (IVC)-duodenal drainage in pancreas alone transplantation...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932114/presence-of-t-275a-and-c-2152t-polymorphisms-of-the-promoter-region-of-uridine-diphosphate-glucuronosyltransferase-1a9-increases-mortality-from-digestive-tumors-results-after-10-years-of-follow-up-in-a-renal-transplant-population
#13
N Calvo, A Shabaka, B Rodriguez Cubillo, V López de la Manzanara, I Pérez-Flores, M A Moreno de la Higuera, J Bautista, A I Sánchez-Fructuoso
BACKGROUND: The aim of this study was to determine the distribution of uridine diphosphate-glucuronosyltransferase 1A9 (UGT1A9) promoter region T-275A and C-2152T single-nucleotide polymorphisms (SNPs) in stable transplant patients and to investigate the impact of these SNPs on the evolution of this population after 10 years of follow-up. METHODS: White renal transplant recipients (n = 873) were studied. The median time of follow-up was 91.8 months (P25-75 46-146)...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932113/hepatitis-c-treatment-with-direct-acting-antivirals-in-kidney-transplant-preliminary-results-from-a-multicenter-study
#14
M A Gentil, C González-Corvillo, M Perelló, S Zarraga, C Jiménez-Martín, L R Lauzurica, A Alonso, A Franco, D Hernández-Marrero, A Sánchez-Fructuoso
Hepatitis C (HC) is a very relevant negative prognosis factor for graft and transplant recipient survival. New direct-acting antivirals (DAAs) allow us to solve this problem in an effective way. It is crucial to understand their real impact in our daily practice. We analyzed treatment results with DAA, free of interferon, in kidney transplant recipients (KTRs) from 15 Spanish hospitals (Grupo Español de Actualización en Trasplante), regarding effectiveness, tolerance, and impact on immunosuppression, renal function-proteinuria, and diabetes...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932039/anaerobic-digestion-of-nitrogen-rich-poultry-manure-impact-of-thermophilic-biogas-process-on-metal-release-and-microbial-resistances
#15
Reshma Anjum, Elisabeth Grohmann, Niclas Krakat
Poultry manure is a nitrogen rich fertilizer, which is usually recycled and spread on agricultural fields. Due to its high nutrient content, chicken manure is considered to be one of the most valuable animal wastes as organic fertilizer. However, when chicken litter is applied in its native form, concerns are raised as such fertilizers also include high amounts of antibiotic resistant pathogenic Bacteria and heavy metals. We studied the impact of an anaerobic thermophilic digestion process on poultry manure...
December 5, 2016: Chemosphere
https://www.readbyqxmd.com/read/27931939/ex-situ-biogas-upgrading-and-enhancement-in-different-reactor-systems
#16
Panagiotis G Kougias, Laura Treu, Daniela Peñailillo Benavente, Kanokwan Boe, Stefano Campanaro, Irini Angelidaki
Biogas upgrading is envisioned as a key process for clean energy production. The current study evaluates the efficiency of different reactor configurations for ex-situ biogas upgrading and enhancement, in which externally provided hydrogen and carbon dioxide were biologically converted to methane by the action of hydrogenotrophic methanogens. The methane content in the output gas of the most efficient configuration was >98%, allowing its exploitation as substitute to natural gas. Additionally, use of digestate from biogas plants as a cost efficient method to provide all the necessary nutrients for microbial growth was successful...
December 2, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27931936/biochemical-methane-potential-of-fractions-of-organic-matter-extracted-from-a-municipal-solid-waste-leachate-impact-of-their-hydrophobic-character
#17
Camille Baccot, Virginie Pallier, Geneviève Feuillade-Cathalifaud
Many data on anaerobic digestion (AD) and co-digestion of municipal solid waste leachate (MSWL) are already available in literature. They mainly deal with its performances to decrease the chemical oxygen demand (COD) of MSWL and no information is given on the impact of the specific characteristics of the dissolved organic matter (DOM) in leachate on these performances. DOM in leachate evolves towards more aromatic and hydrophobic compounds during landfilling with increasing specific ultra-violet absorbance index (SUVA) and hydrophobic character...
December 5, 2016: Waste Management
https://www.readbyqxmd.com/read/27931390/thermal-effects
#18
Ming Yan, Panyue Zhang, Guangming Zeng
This review focuses on the research literatures published in 2015 relating to topics of thermal effects in water pollution control. This review is divided into the following sections: biological nitrogen and phosphorus removal, wastewater treatment for organic conversion, industrial wastewater treatment, anaerobic digestion of sewage sludge and solid waste, sludge biochar preparation and application, pyrolysis of sewage sludge, reduction heavy metal in sewage sludge and soil, and other issues of wastewater and sludge treatment...
October 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/27931382/mixing-and-transport
#19
Chein-Chi Chang, Tom Chapman, Elena Siverts-Wong, Li Wei, Ying Mei
This section covers research published during the calendar year 2015 on mixing and transport processes. The review covers mixing of anaerobic digesters, mixing of heat transfer, and environmental fate and transport.
October 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/27931369/biosolids-and-sludge-management
#20
Kari Fitzmorris Brisolara, Helena Ochoa
This review section covers journal articles and conference papers related to biosolids and sludge management that were published in 2015. The literature review has been divided into the following sections: Biosolids regulations and management issues; Biosolids characteristics, quality and measurement including microconstituents, pathogens, nanoparticles and metals; Sludge treatment technologies including pretreatment and sludge minimization, conditioning and dewatering, digestion, composting and innovative technologies; Disposal and reuse including combustion/incineration, agricultural uses and innovative uses; Odor and air emissions; and Energy issues...
October 2016: Water Environment Research: a Research Publication of the Water Environment Federation
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