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https://www.readbyqxmd.com/read/28431510/delayed-response-to-cold-stress-is-characterized-by-successive-metabolic-shifts-culminating-in-apple-fruit-peel-necrosis
#1
Nigel E Gapper, Maarten L A T M Hertog, Jinwook Lee, David A Buchanan, Rachel S Leisso, Zhangjun Fei, Guiqin Qu, James J Giovannoni, Jason W Johnston, Robert J Schaffer, Bart M Nicolaï, James P Mattheis, Christopher B Watkins, David R Rudell
BACKGROUND: Superficial scald is a physiological disorder of apple fruit characterized by sunken, necrotic lesions appearing after prolonged cold storage, although initial injury occurs much earlier in the storage period. To determine the degree to which the transition to cell death is an active process and specific metabolism involved, untargeted metabolic and transcriptomic profiling was used to follow metabolism of peel tissue over 180 d of cold storage. RESULTS: The metabolome and transcriptome of peel destined to develop scald began to diverge from peel where scald was controlled using antioxidant (diphenylamine; DPA) or rendered insensitive to ethylene using 1-methylcyclopropene (1-MCP) beginning between 30 and 60 days of storage...
April 21, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28419685/scaffolds-for-epithelial-tissue-engineering-customized-in-elastomeric-molds
#2
Mohamed-Nur Abdallah, Sara Abdollahi, Marco Laurenti, Dongdong Fang, Simon D Tran, Marta Cerruti, Faleh Tamimi
Restoration of soft tissue defects remains a challenge for surgical reconstruction. In this study, we introduce a new approach to fabricate poly(d,l-lactic acid) (PDLLA) scaffolds with anatomical shapes customized to regenerate three-dimensional soft tissue defects. Highly concentrated polymer/salt mixtures were molded in flexible polyether molds. Microcomputed tomography showed that with this approach it was possible to produce scaffolds with clinically acceptable volume ratio maintenance (>90%). Moreover, this technique allowed us to customize the average pore size and pore interconnectivity of the scaffolds by using variations of salt particle size...
April 18, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28414437/phenolic-content-and-antioxidant-activity-during-the-development-of-brookfield-and-mishima-apples
#3
Mayara C Stanger, Cristiano A Steffens, Cristina Soethe, Marcelo A Moreira, Cassandro V T do Amarante
The aim of this study was to characterize the changes in the contents of total (TPC) and individual (IPC) phenolic compounds, the total antioxidant activity (TAA) in the peel and pulp, and total anthocyanins (TAN) in the peel during the development of the fruits of 'Brookfield' and 'Mishima' apple trees. 'Brookfield' apples were harvested from the 49th to the 138th days after full bloom (DAFB) and 'Mishima' apples from the 45th to the 172th DAFB. In the pulp, the IPC, TPC, and TAA rapidly reduced at 75 and 79 DAFB for the 'Brookfield' and 'Mishima' apples, respectively, and then remained constant until commercial maturity...
April 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28376257/the-stiffness-of-a-crosslinked-hyaluronan-hydrogel-affects-its-chondro-induction-activity-on-hadscs
#4
Benjamin Teong, Shun-Cheng Wu, Chien-Mei Chang, Jhen-Wei Chen, Hui-Ting Chen, Chung-Hwan Chen, Je-Ken Chang, Mei-Ling Ho
Matrix stiffness plays an important role in stem cell differentiation. This study reports the synthesis of methacrylated hyaluronan (MeHA) with different degrees of methacrylation, ranging from 15 to 140% per disaccharide unit, which corresponds to a matrix stiffness ranging from 1.5 to 8 KPa. The swelling ratio was inversely proportional to the matrix stiffness, but the water content remained constant at >97% of the hydrogel mass. A fibril-like surface morphology and larger pore size were observed in lyophilized MeHA hydrogel with a lower stiffness...
April 4, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28364359/mhealth-app-for-ios-to-help-in-diagnostic-decision-in-ophthalmology-to-primary-care-physicians
#5
Marta Manovel López, Miguel Maldonado López, Isabel de la Torre Díez, José Carlos Pastor Jimeno, Miguel López-Coronado
Decision support systems (DSS) are increasingly demanded due that diagnosis is one of the main activities that physicians accomplish every day. This fact seems critical when primary care physicians deal with uncommon problems belonging to specialized areas. The main objective of this paper is the development and user evaluation of a mobile DSS for iOS named OphthalDSS. This app has as purpose helping in anterior segment ocular diseases' diagnosis, besides offering educative content about ophthalmic diseases to users...
May 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28359205/quality-stability-and-sensory-attributes-of-apple-juice-processed-by-thermosonication-pulsed-electric-field-and-thermal-processing
#6
Alifdalino Sulaiman, Mohammed Farid, Filipa Vm Silva
Worldwide, apple juice is the second most popular juice, after orange juice. It is susceptible to enzymatic browning spoilage by polyphenoloxidase, an endogenous enzyme. In this study, Royal Gala apple juice was treated by thermosonication (TS: 1.3 W/mL, 58 ℃, 10 min), pulsed electric field (PEF: 24.8 kV/cm, 60 pulses, 169 µs treatment time, 53.8 ℃) and heat (75 ℃, 20 min) and stored at 3.0 ℃ and 20.0 ℃ for 30 days. A sensory analysis was carried out after processing. The polyphenoloxidase activity, antioxidant activity and total color difference of the apple juice were determined before and after processing and during storage...
April 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28349309/dissipation-of-chlorantraniliprole-chlorpyrifos-methyl-and-indoxacarb-insecticides-used-to-control-codling-moth-cydia-pomonella-l-and-leafrollers-tortricidae-in-apples-for-production-of-baby-food
#7
Ewa Szpyrka, Aneta Matyaszek, Magdalena Słowik-Borowiec
Dissipations of three insecticides: chlorantraniliprole, chlorpyrifos-methyl and indoxacarb in apples were studied following their foliar application on apples intended for production of baby food. The apples were sprayed with formulations for control of codling moth (Cydia Pomonella L.) and leafrollers (Tortricidae). Six experiments were conducted; each insecticide was applied individually on dessert apples. A validated gas chromatography-based method with simultaneous electron capture and nitrogen-phosphorus detection (GC-ECD/NPD) was used for the residue analysis...
March 27, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28344141/single-high-sensitivity-cardiac-troponin-i-to-rule-out-acute-myocardial-infarction
#8
Yader Sandoval, Stephen W Smith, Sara A Love, Anne Sexter, Karen Schulz, Fred S Apple
PURPOSE: Examine the performance of single high-sensitivity cardiac troponin I (hs-cTnI) measurement strategies to rule-out acute myocardial infarction. METHODS: Prospective, observational study of consecutive patients presenting to the emergency department (n=1,631) in whom cTnI measurements where obtained using an investigational hs-cTnI assay. Negative predictive value (NPV) and sensitivity for the a) diagnosis of acute myocardial infarction, type 1 myocardial infarction, and type 2 myocardial infarction and b) safety outcome of acute myocardial infarction or cardiac death at 30 days using hs-cTnI less than the limit of detection (LoD) (<1...
March 23, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28341432/development-validation-and-evaluation-of-an-analytical-method-for-the-determination-of-monomeric-and-oligomeric-procyanidins-in-apple-extracts
#9
Wendy J Hollands, Stefan Voorspoels, Griet Jacobs, Kjersti Aaby, Ane Meisland, Rocio Garcia-Villalba, Francisco Tomas-Barberan, Mariusz K Piskula, Deborah Mawson, Irena Vovk, Paul W Needs, Paul A Kroon
There is a lack of data for individual oligomeric procyanidins in apples and apple extracts. Our aim was to develop, validate and evaluate an analytical method for the separation, identification and quantification of monomeric and oligomeric flavanols in apple extracts. To achieve this, we prepared two types of flavanol extracts from freeze-dried apples; one was an epicatechin-rich extract containing ∼30% (w/w) monomeric (-)-epicatechin which also contained oligomeric procyanidins (Extract A), the second was an oligomeric procyanidin-rich extract depleted of epicatechin (Extract B)...
April 28, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28338764/fruit-and-vegetable-intake-and-the-risk-of-cardiovascular-disease-total-cancer-and-all-cause-mortality-a-systematic-review-and-dose-response-meta-analysis-of-prospective-studies
#10
Dagfinn Aune, Edward Giovannucci, Paolo Boffetta, Lars T Fadnes, NaNa Keum, Teresa Norat, Darren C Greenwood, Elio Riboli, Lars J Vatten, Serena Tonstad
Background: Questions remain about the strength and shape of the dose-response relationship between fruit and vegetable intake and risk of cardiovascular disease, cancer and mortality, and the effects of specific types of fruit and vegetables. We conducted a systematic review and meta-analysis to clarify these associations. Methods: PubMed and Embase were searched up to 29 September 2016. Prospective studies of fruit and vegetable intake and cardiovascular disease, total cancer and all-cause mortality were included...
February 22, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28330279/immobilization-of%C3%A2-bacillus-amyloliquefaciens-sp1-and-its-alkaline-protease-in-various-matrices-for-effective-hydrolysis-of-casein
#11
Shiwani Guleria, Abhishek Walia, Anjali Chauhan, C K Shirkot
An extracellular alkaline protease producing B. amyloliquefaciens SP1 was isolated from apple rhizosphere having multifarious plant growth-promoting activities. B. amyloliquefaciens SP1 protease was immobilized using various concentrations of calcium alginate, agar and polyacrylamide to determine the optimum concentration for formation of the beads. Enzyme activity before immobilization (at 60 °C, pH 8.0 for 5 min) was 3580 µg/ml/min. The results of immobilization with various matrices revealed that 3 % calcium alginate (2829...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28328390/the-efficacy-of-telemedicine-supported-discharge-within-an-in-home-model-of-care
#12
Edwin P Greenup, Melissa McCusker, Boyd A Potts, Andrew Bryett
OBJECTIVE: To determine if mobile videoconferencing technology can facilitate the discharge of low-acuity patients receiving in-home care without compromising short-term health outcomes. METHODS: A 6-month trial commenced in July 2015 with 345 patients considered unsuited to Criteria Led Discharge (CLD) receiving in-home care included as participants. Nurses providing clinical support to patients in their homes were supplied with a tablet computer (Apple iPad) with Internet connectivity (Telstra 4G Network) and videoconferencing software (Cisco Jabber for Telepresence)...
February 22, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28320409/can-an-incentive-based-intervention-increase-physical-activity-and-reduce-sitting-among-adults-the-achieve-active-choices-incentive-feasibility-study
#13
Kylie Ball, Ruth F Hunter, Jaimie-Lee Maple, Marj Moodie, Jo Salmon, Kok-Leong Ong, Lena D Stephens, Michelle Jackson, David Crawford
BACKGROUND: Despite recent interest in the potential of incentivisation as a strategy for motivating healthier behaviors, little remains known about the effectiveness of incentives in promoting physical activity and reducing sedentary behavior, and improving associated health outcomes. This pre-post-test design study investigated the feasibility, appeal and effects of providing non-financial incentives for promoting increased physical activity, reduced sedentary time, and reduced body mass index (BMI) and blood pressure among inactive middle-aged adults...
March 21, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28282248/what-will-it-take-to-end-the-hiv-aids-epidemic-linking-the-most-disenfranchised-into-care-through-outreach
#14
Cynthia A Gómez, Susana A Tat, Debra Allen, Danielle Gordon, Dennis Browe
The 2015 National HIV/AIDS Strategy renewed its goal of increasing access to care for people living with HIV/AIDS (PLWHA) and called for an increased focus on linkage to care efforts. As many PLWHA face multiple barriers to care and live on the margins of society, adoption of intensive outreach activities is necessary to engage the most disenfranchised PLWHA into care and to ultimately end the HIV epidemic. The Bay Area Network for Positive Health (BANPH), comprising 12+ agencies, established a network outreach model for our linkage-to-care project to engage the hardest-to-reach populations in the San Francisco Bay Area...
March 2017: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/28276202/safety-osseointegration-and-bone-ingrowth-analysis-of-pmma-based-porous-cement-on-animal-metaphyseal-bone-defect-model
#15
Bruno Cimatti, Mariana Avelino Dos Santos, Maria Sol Brassesco, Laura Tiemi Okano, Wendell Monteiro Barboza, Marcello Henrique Nogueira-Barbosa, Edgard Eduard Engel
Bone defects created after curettage of benign bone tumors are customarily filled with solid poly(methyl methacrylate) (PMMA) or other bone substitutes. In this study, we depicted a porous PMMA-based cement (produced by mixing sodium bicarbonate and citric acid) and evaluated the prospect of its clinic application. Cement samples were characterized by high-performance liquid chromatography (HPLC) coupled to mass spectrometry and its cytotoxicity evaluated in fibroblast cultures. Implantation in rabbits allowed the histologic analysis of bone, kidneys, and liver for toxicity and coagulation tests, and MRI images for hemostasis evaluation...
March 9, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28276115/a-novel-feedstuff-ensiling-of-cowpea-vigna-unguiculata-l-stover-and-apple-malus-domestica-borkh-mixtures-evaluation-of-the-nutritive-value-fermentation-quality-and-aerobic-stability
#16
Ederson Andrade, Alexandre Gonçalves, Ana Mendes-Ferreira, Valéria Silva, Victor Pinheiro, Miguel Rodrigues, Luis Ferreira
BACKGROUND: Agro-industrial by-products have low economical value as foods for human consumption however might represent a potential value as animal feedstuffs. This study evaluated a novel feedstuff, ensiled discarded apple (85%) and cowpea stover (15%) mixtures with two distinct ensiling periods (45 and 60 days) regarding the nutritive value, fermentation quality and aerobic stability. RESULTS: Generally, no differences (P > 0.05) were observed between ensiling periods for its nutritive value and fermentation characteristics...
March 8, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28263435/anti-inflammatory-coatings-of-hernia-repair-meshes-a-pilot-study
#17
Dmitry Gil, James Rex, William Cobb, Vladimir Reukov, Alexey Vertegel
The current prevalence of postoperative chronic pain from hernioplasty procedures employing polymer mesh is close to 30%. Most of the researchers agree that oxidative stress, resulting from the release of oxidants and enzymes during acute inflammatory response, is a key factor in the development of posthernioplasty complications. This results in both the decrease of the biomechanical properties and stiffening of the polymer fibers of the mesh, leading to chronic pain. Moreover, enhanced activity of inflammatory cells can lead to an excessive deposition of connective tissue around the implant...
March 6, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28257442/genotyping-by-sequencing-markers-facilitate-the-identification-of-quantitative-trait-loci-controlling-resistance-to-penicillium-expansum-in-malus-sieversii
#18
John L Norelli, Michael Wisniewski, Gennaro Fazio, Erik Burchard, Benjamin Gutierrez, Elena Levin, Samir Droby
Blue mold caused by Penicillium expansum is the most important postharvest disease of apple worldwide and results in significant financial losses. There are no defined sources of resistance to blue mold in domesticated apple. However, resistance has been described in wild Malus sieversii accessions, including plant introduction (PI)613981. The objective of the present study was to identify the genetic loci controlling resistance to blue mold in this accession. We describe the first quantitative trait loci (QTL) reported in the Rosaceae tribe Maleae conditioning resistance to P...
2017: PloS One
https://www.readbyqxmd.com/read/28251289/determination-of-volatile-compounds-in-cider-apple-juices-using-a-covalently-bonded-ionic-liquid-coating-as-the-stationary-phase-in-gas-chromatography
#19
Jairo Pello-Palma, Jaime González-Álvarez, María Dolores Gutiérrez-Álvarez, Enrique Dapena de la Fuente, Juan José Mangas-Alonso, Daniel Méndez-Sánchez, Vicente Gotor-Fernández, Pilar Arias-Abrodo
A chromatographic method for the separation of volatile compounds in Asturian cider apple juices has been developed. For this separation purpose, a monocationic imidazolium-based ionic liquid bearing a reactive terminal iodine atom was synthesized by a quaternization-anion exchange chemical sequence. Next, the gas chromatography (GC) stationary phase was prepared by covalently linking the imidazolium monolith to the reactive silanol groups of the inner capillary wall at 70 °C. This coated GC column exhibited good thermal stability (290 °C), as well as good efficiency (2000 plates/m) in the separation of volatile compounds from Asturian apple cider juices, and was characterized using the Abraham solvation parameter model...
April 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28240814/an-engineered-macroencapsulation-membrane-releasing-fty720-to-precondition-pancreatic-islet-transplantation
#20
Daniel T Bowers, Claire E Olingy, Preeti Chhabra, Linda Langman, Parker H Merrill, Ritu S Linhart, Michael L Tanes, Dan Lin, Kenneth L Brayman, Edward A Botchwey
Macroencapsulation is a powerful approach to increase the efficiency of extrahepatic pancreatic islet transplant. FTY720, a small molecule that activates signaling through sphingosine-1-phosphate receptors, is immunomodulatory and pro-angiogenic upon sustained delivery from biomaterials. While FTY720 (fingolimod, Gilenya) has been explored for organ transplantation, in the present work the effect of locally released FTY720 from novel nanofiber-based macroencapsulation membranes is explored for islet transplantation...
February 27, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
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