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https://www.readbyqxmd.com/read/28718996/production-of-ligninolytic-enzymes-and-some-diffusible-antifungal-compounds-by-white-rot-fungi-using-potato-solid-wastes-as-the-sole-nutrient-source
#1
H Schalchli, E Hormazábal, O Rubilar, G Briceño, A Mutis, G J Zocolo, C Diez
AIMS: The aim of this study was to evaluate the synthesis of ligninolytic enzymes and some diffusible antifungal compounds by white-rot fungi using peels or discarded potato as the sole nutrient source. METHODS AND RESULTS: The strain Trametes hirsuta Ru-513 has been highlighted for its laccase activity (595 ± 33 U l(-1) ), which is able to decolourise 87% of an anthraquinone dye using potato peels as the sole nutritional support. A native polyacrylamide gel of laccase proteins showed the presence of two isoenzymes, corresponding to proteins of 56 and 67 kDa, which were detected by SDS-PAGE...
July 18, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28718722/anticarcinogenic-effects-of-dried-citrus-peel-in-colon-carcinogenesis-due-to-inhibition-of-oxidative-stress
#2
Wakana Onuma, Daichi Asai, Susumu Tomono, Shingo Miyamoto, Gen Fujii, Takahiro Hamoya, Aya Nagano, Satoru Takahashi, Shoji Masumori, Noriyuki Miyoshi, Keiji Wakabayashi, Michihiro Mutoh
Colorectal cancer is one of the leading causes of death worldwide. Reactive oxygen species produce oxidative stress and contribute to colorectal carcinogenesis. Because dietary citrus has been shown to reduce oxidative stress, we investigated the effects of citrus peel extract at dilutions of 1/200-1/500 on the activity of oxidative-stress-related transcription factors, including AP-1, NF-κB, NRF2, p53, and STAT3, in human colon cancer cell line HCT116 cells using a luciferase reporter gene assay. NRF2 transcriptional activities were 1...
July 18, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28718669/fruit-peel-polyphenolic-extract-induced-apoptosis-in-human-breast-cancer-cells-is-associated-with-ros-production-and-modulation-of-p38mapk-erk1-2-and-the-akt-signaling-pathway
#3
Martin Kello, Lucia Kulikova, Janka Vaskova, Alexandra Nagyova, Jan Mojzis
Polyphenols represent a large group of natural substances with different biological properties. Currently, polyphenols are well studied due to their free radicals' scavenging and antioxidant activities. However, some studies indicate that polyphenols also exhibit pro-oxidant properties. In this study, the possible involvement of the pro-oxidant activities of fruit polyphenols was investigated in relation to apoptosis induction. To determine the type of cell death induced by fruit polyphenols (Flavine; F7), we assessed a series of assays, including measurements of caspase-7 activation, membrane mitochondrial potential changes, reactive oxygen (ROS) and nitrogen species production, lipid peroxidation, antioxidant enzymes activities, and PARP cleavage...
July 18, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28715813/efficacy-of-the-perfluoro-n-octane-assisted-single-layered-inverted-internal-limiting-membrane-flap-technique-for-large-macular-holes
#4
Kang Yeun Pak, Jung Yul Park, Sung Who Park, Ik Soo Byon, Ji Eun Lee
PURPOSE: The aim of this study was to evaluate the efficacy of the perfluoro-n-octane-assisted single-layered inverted internal limiting membrane (ILM) flap for large macular holes (MHs). METHODS: We reviewed idiopathic MHs >400 μm. The patients were divided into ILM peeling (group P, 51 eyes) and ILM flap (group F, 41 eyes). Closure of MHs, best-corrected visual acuity (BCVA), and postoperative optical coherence tomography findings were analyzed. RESULTS: MH closure was achieved in 88...
July 15, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28715697/development-of-simultaneous-nitrification-denitrification-snd-in-biofilm-reactors-with-partially-coupled-a-novel-biodegradable-carrier-for-nitrogen-rich-water-purification
#5
Jing Zhao, Lijuan Feng, Guangfeng Yang, Jincheng Dai, Jun Mu
Development of simultaneous nitrification-denitrification (SND) is a promising approach for nitrogen-rich water purification. Coupling biofilm reactors with novel biodegradable carrier of Pumelo Peel (PP) and various conventional plastic fillers (polyurethane filler, SPR-1 suspension filler, TA-II elastic filler and sphere filler) were examined to achieve SND in this study. Results represented that partially coupled with PP could achieve highly efficient SND. Optimal performance appealed in a bioreactor of coupling PP and SPR-1filler with ammonia and total nitrogen removal efficiencies of 96...
June 26, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28711616/isolation-screening-and-characterization-of-a-novel-extracellular-xylanase-from-aspergillus-niger-kp874102-1-and-its-application-in-orange-peel-hydrolysis
#6
Uma Shankar Prasad Uday, Ria Majumdar, Onkar Nath Tiwari, Umesh Mishra, Abhijit Mondal, Tarun Kanti Bandyopadhyay, Biswanath Bhunia
In the present work, a potent xylanase producing fungal strain Aspergillus niger (KP874102.1) was isolated through cultural and morphological observations from soil sample of Baramura forest, Tripura west, India. 28S rDNA technique was applied for genomic identification of this fungal strain. The isolated strain was found to be phylogenetically closely related to Aspergillus niger. Kinetic constants such as Km and Vmax for extracellular xylanase were determined using various substrate such as beech wood xylan, oat spelt xylan and CM cellulose through Lineweaver-Burk plot...
July 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28711182/slaughterhouse-by-products-treatment-using-anaerobic-digestion
#7
Ioannis Moukazis, Frantseska-Maria Pellera, Evangelos Gidarakos
The objective of the present study is to evaluate the use of animal by-products (ABP) as substrates for anaerobic digestion, aiming at methane production. Specifically, four ABP of Category 2 and 3, namely (i) stomach and rumen, (ii) stomach contents, (iii) breasts and reproductive organs and (iv) bladders and intestines with their contents, were selected. The methane potential of each ABP was initially determined, while the feasibility of anaerobic co-digestion of ABP with two agroindustrial waste, i.e. orange peels and olive leaves was also studied...
July 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28710187/utility-of-microscope-integrated-optical-coherence-tomography-mioct-in-the-treatment-of-myopic-macular-hole-retinal-detachment
#8
Atul Kumar, Prateek Kakkar, Raghav Dinesh Ravani, Ashish Markan
Macular hole-associated retinal detachment in high myopia is described as a final stage in progression of myopic traction maculopathy (MTM).(1â€"3) Shimada et al(4) described the progressive stages of MTM from macular retinoschisis to serous retinal detachment in high myopia. Stage 4 MTM is characterised as disappearance of retinoschisis with progression to retinal detachment due to macular hole formation. It is hypothesised that vitreoschisis and abnormal vitreo-retinal interface create the premacular tangential traction...
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28709740/effects-of-size-and-thermophilic-pre-hydrolysis-of-banana-peel-during-anaerobic-digestion-and-biomethanation-potential-of-key-tropical-fruit-wastes
#9
Mary Jesuyemi Odedina, Boonya Charnnok, Kanyarat Saritpongteeraka, Sumate Chaiprapat
Methane production potential of tropical fruit wastes, namely lady-finger banana peel, rambutan waste and longan waste were compared using BMP assay and stoichiometric modified Buswell and Mueller equation. Methane yields based on volatile solid (VS) were in the order of ground banana peel, chopped banana peel, chopped longan waste, and chopped rambutan waste (330.6, 268.3, 234.6 and 193.2 mLCH4/gVS) that corresponded to their calculated biodegradability. In continuous operations of banana peel digestion at feed concentrations based on total solid (TS) 1-2%, mesophilic single stage digester run at 20-day hydraulic retention time (20-day HRT) failed at 2%TS, but successfully recovered at 1...
July 11, 2017: Waste Management
https://www.readbyqxmd.com/read/28708608/magnetic-schiff-s-base-sorbent-based-on-shrimp-peels-wastes-for-consummate-sorption-of-chromate
#10
Khalid Z Elwakeel, Ahmed M Elgarahy, Samya H Mohammad
Magnetic Schiff's base chitosan composite has been prepared starting from shrimp peels as a raw material. Chitosan extraction involved three main stages as preconditioning, demineralization deproteinization and deacetylation. Chitosan modification process took place through the reaction between chitosan and polymeric Schiff's base of thiourea/glutaraldehyde in the presence of magnetite. The synthetic hybrid composite was characterized by Fourier transform infrared spectroscopy and scanning electron microscopy-energy dispersive X-ray analyses and tested as sorbent for Cr(VI) recovery from aqueous solution...
July 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28708029/effect-of-surface-roughness-in-model-and-fresh-fruit-systems-on-microbial-inactivation-efficacy-of-cold-atmospheric-pressure-plasma
#11
Siddharth Bhide, Deepti Salvi, Donald W Schaffner, Mukund V Karwe
This study investigates the efficacy of cold atmospheric pressure plasma (CAPP) on microbial inactivation as influenced by surface roughness of two types of surfaces: sandpaper and fresh fruit peel. Different grits of closed-coat sandpaper were selected, with their roughness (Pq) values ranging from 6 to 16 μm. Apple, orange, and cantaloupe peels were selected for roughness values that were similar to the sandpapers. The sandpapers and the fruit peel surfaces were spot inoculated with Enterobacter aerogenes (10(9) CFU/63...
July 14, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28703047/assessment-of-people-who-have-been-tasered
#12
Matthew Peel
The use of Tasers® by the police is subject to intense scrutiny and controversy. With increasing numbers of police officers carrying Tasers, it is important that nurses in pre-hospital, emergency department and police custody settings understand how Tasers work, and the physiological effects. This article describes Tasers, their mechanisms and physiological effects, and explains how nurses should undertake assessment of people who have been subjected to Taser discharge.
July 13, 2017: Emergency Nurse: the Journal of the RCN Accident and Emergency Nursing Association
https://www.readbyqxmd.com/read/28702529/assessing-chemotherapeutic-effectiveness-using-a-paper-based-tumor-model
#13
Matthew W Boyce, Gabriel J LaBonia, Amanda B Hummon, Matthew R Lockett
In vitro models for screening new cancer chemotherapeutics often rely on two-dimensional cultures to predict therapeutic potential. Unfortunately, the predictive power of these models is limited, as they fail to recapitulate the complex three-dimensional environments in tumors that promote a chemoresistant phenotype. In this study, we describe the preparation and characterization of paper-based cultures (PBCs) engineered to assess chemotherapeutic effectiveness in three dimensional, diffusion-limited environments...
July 12, 2017: Analyst
https://www.readbyqxmd.com/read/28702181/the-major-thoracic-vascular-invasion-of-lung-cancer
#14
Soichi Oka, Shuichi Shinohara, Taiji Kuwata, Masaru Takenaka, Yasuhiro Chikaishi, Ayako Hirai, Yoshinobu Ichiki, Shohei Shimajiri, Takatoshi Aoki, Fumihiro Tanaka
BACKGROUND: We actually investigated the surgical and pathological findings in cases which tumor invasion of the major thoracic vessels was suspected based on the preoperative Computed tomography (CT) findings. MATERIALS AND METHODS: We retrospectively reviewed our prospective database of all patients, who underwent lung resection for lung cancer from 2012 to 2014. 387 patients underwent lung cancer surgery. Among these patients, we analyzed 30 patients in whom pulmonary artery (PA) invasion was suspected and 11 patients in whom pulmonary vein (PV) or left atrium (LA) invasion was suspected based on the preoperative CT findings...
August 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28701418/laboratory-workflow-analysis-of-culture-of-periprosthetic-tissues-in-blood-culture-bottles
#15
Trisha N Peel, John A Sedarski, Brenda L Dylla, Samantha K Shannon, Fazlollaah Amirahmadi, John G Hughes, Allen C Cheng, Robin Patel
Culture of periprosthetic tissue specimens in blood culture bottles is more sensitive than conventional techniques, but the impact on laboratory workflow has yet to be addressed. Herein, we examined the impact of culture of periprosthetic tissues in blood culture bottles on laboratory workflow and cost.Workflow was process mapped and Decision Tree Models were constructed using probabilities of positive and negative cultures drawn from our published study (Peel TN, et al 2016. mBio 7:e01776-01715) and the processing times and resource costs from the laboratory staff time viewpoint to compare periprosthetic tissues culture processes using conventional techniques with culture in blood culture bottles...
July 12, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28701272/sexually-transmitted-infections-challenges-ahead
#16
REVIEW
Magnus Unemo, Catriona S Bradshaw, Jane S Hocking, Henry J C de Vries, Suzanna C Francis, David Mabey, Jeanne M Marrazzo, Gerard J B Sonder, Jane R Schwebke, Elske Hoornenborg, Rosanna W Peeling, Susan S Philip, Nicola Low, Christopher K Fairley
WHO estimated that nearly 1 million people become infected every day with any of four curable sexually transmitted infections (STIs): chlamydia, gonorrhoea, syphilis, and trichomoniasis. Despite their high global incidence, STIs remain a neglected area of research. In this Commission, we have prioritised five areas that represent particular challenges in STI treatment and control. Chlamydia remains the most commonly diagnosed bacterial STI in high-income countries despite widespread testing recommendations, sensitive and specific non-invasive testing techniques, and cheap effective therapy...
July 7, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28700997/nobiletin-a-polymethoxy-flavonoid-protects-against-cardiac-hypertrophy-induced-by-pressure-overload-via-inhibition-of-napdh-oxidases-and-endoplasmic-reticulum-stress
#17
Ning Zhang, Wen-Ying Wei, Zheng Yang, Yan Che, Ya-Ge Jin, Hai-Han Liao, Sha-Sha Wang, Wei Deng, Qi-Zhu Tang
BACKGROUND/AIMS: An increase in oxidative stress has been implicated in the pathophysiology of pressure-overload induced cardiac hypertrophy. Nobiletin (NOB), extracted from the fruit peel of citrus, possesses anti-oxidative property. Our study aimed to investigate the protective role of NOB in the progression of cardiac hypertrophy in vivo and in vitro. METHODS: Mice received aortic banding (AB) operation to induce cardiac hypertrophy. Experimental groups were as follows: sham+vehicle (VEH/SH), sham+NOB (NOB/SH), AB+vehicle (VEH/AB), and AB+ NOB (NOB/AB)...
July 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28700389/intraoperative-optical-coherence-tomography-guided-retrolenticular-vitreous-peeling-in-diabetic-vitreous-hemorrhage
#18
Mahiul M K Muqit
No abstract text is available yet for this article.
July 10, 2017: Retina
https://www.readbyqxmd.com/read/28700086/antiseptics-for-burns
#19
REVIEW
Gill Norman, Janice Christie, Zhenmi Liu, Maggie J Westby, Jayne M Jefferies, Thomas Hudson, Jacky Edwards, Devi Prasad Mohapatra, Ibrahim A Hassan, Jo C Dumville
BACKGROUND: Burn wounds cause high levels of morbidity and mortality worldwide. People with burns are particularly vulnerable to infections; over 75% of all burn deaths (after initial resuscitation) result from infection. Antiseptics are topical agents that act to prevent growth of micro-organisms. A wide range are used with the intention of preventing infection and promoting healing of burn wounds. OBJECTIVES: To assess the effects and safety of antiseptics for the treatment of burns in any care setting...
July 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28699929/arcuate-nerve-fiber-layer-changes-after-internal-limiting-membrane-peeling-in-idiopathic-epiretinal-membrane
#20
Andrea Scupola, Gabriela Grimaldi, Edoardo Abed, Maria G Sammarco, Andrea Giudiceandrea, Andrea Greco, Paola Sasso, Maria A Blasi
PURPOSE: To analyze the relationship between swelling of the arcuate nerve fiber layer (SANFL) and long-term decrease of retinal nerve fiber layer thickness after internal limiting membrane peeling for idiopathic epiretinal membrane, and to investigate if SANFL is related to a mechanical surgical damage. METHODS: Prospective, interventional consecutive case series of 46 eyes that underwent combined epiretinal membrane/internal limiting membrane peeling for idiopathic epiretinal membrane...
July 7, 2017: Retina
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