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https://www.readbyqxmd.com/read/28334520/new-approach-for-vertical-bone-regeneration-using-in-situ-gelling-and-sustained-bmp-2-releasing-poly-phosphazene-hydrogel-system-on-peri-implant-site-with-critical-defect-in-a-canine-model
#1
Bo-Bae Seo, Hae-Im Chang, Hyuck Choi, Jeong-Tae Koh, Kwi-Dug Yun, Jae-Yeol Lee, Soo-Chang Song
An injectable hydrogel system with sustained bone morphogenetic protein 2 (BMP-2) release ability was developed for vertical bone regeneration at peri-implant sites and enhanced osseointegration of dental implants. In three young male beagle dogs, a pair of defects was created on both sides of the mandibular bone. Next, two implants were transplanted into each defect. In situ gelling polymer solutions with or without BMP-2 were applied to cover the implants and mandibular defects. The effects of the in situ gelling and sustained BMP-2 releasing (IGSR) hydrogel system on peri-implant bone regeneration were evaluated by radiologic examination, micro-computed tomography, and histomorphometric analysis...
March 23, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28334507/comparative-study-of-cytotoxicity-and-genotoxicity-of-commercial-jeffamines%C3%A2-and-polyethylenimine-in-cho-k1-cells
#2
Leniher Castan, Cristiano José da Silva, Eduardo Ferreira Molina, Raquel Alves Dos Santos
Jeffamines(®) are a family of polymers containing primary amine groups attached to the extremities of polyether backbone which can be used as biomaterials. They have been used in combination with polyethylenimine (PEI) to improve biocompatibility in drug and gene delivery systems. Despite these facts, very few studies have been done on cytotoxicity and genotoxicity of pure Jeffamines(®) or compared with PEI. The present study aimed to evaluate and compare the cytotoxic and genotoxic effects of Jeffamines(®) and PEI in CHO-K1 cells...
March 23, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28332451/inhibitory-effect-of-fruit-juices-on-the-doxorubicin-metabolizing-activity-of-carbonyl-reductase-1
#3
Takeshi Miura, Katsutoshi Nagai, Shingo Kaneshiro, Ayako Taketomi, Toshikatsu Nakabayashi, Hiroki Konishi, Toru Nishinaka, Tomoyuki Terada
BACKGROUND AND OBJECTIVE: Doxorubicin, an anthracycline anti-cancer drug, is effective for breast cancer and childhood lymphoma. Chronic cardiotoxicity has been known as a critical adverse effect of doxorubicin and is attributed to its metabolite doxorubicinol produced by carbonyl reductase 1 (CBR1, SDR21C1). Some flavonoids have been reported to act as inhibitors for CBR1, therefore, commercially available juices containing flavonoids are likely to be applicable as a prophylactic treatment against doxorubicin-induced cardiotoxicity by suppression doxorubicinol production...
March 9, 2017: Drug Metabolism Letters
https://www.readbyqxmd.com/read/28331280/existence-and-hadamard-well-posedness-of-a-system-of-simultaneous-generalized-vector-quasi-equilibrium-problems
#4
Wenyan Zhang, Jing Zeng
An existence result for the solution set of a system of simultaneous generalized vector quasi-equilibrium problems (for short, (SSGVQEP)) is obtained, which improves Theorem 3.1 of the work of Ansari et al. (J. Optim. Theory Appl. 127:27-44, 2005). Moreover, a definition of Hadamard-type well-posedness for (SSGVQEP) is introduced and sufficient conditions for Hadamard well-posedness of (SSGVQEP) are established.
2017: J Inequal Appl
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
#5
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/28330106/enhanced-production-of-pectinase-by-aspergillus-terreus-ncft-4269-10-using-banana-peels-as-substrate
#6
Bijay Kumar Sethi, Prativa Kumari Nanda, Santilata Sahoo
Aspergillus terreus NCFT4269.10 was implemented in solid-state (SSF) and liquid static surface fermentation (LSSF) for biosynthesis of pectinase. Amongst various substrates, like, mustard oil cake, neem oil cake, groundnut oil cake, black gram peels, green gram peels, chickling vetch peels/grass pea peels wheat bran, pearl millet residues, finger millet waste, broken rice, banana peels (BP), apple pomace (AP) and orange peels, banana peel (Musa paradisiaca L.; Family: Musaceae) was most suitable for pectinase biosynthesis (LSSF: 400 ± 21...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28328390/the-efficacy-of-telemedicine-supported-discharge-within-an-in-home-model-of-care
#7
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/28326616/high-prevalence-of-sensitization-to-gibberellin-regulated-protein-peamaclein-in-fruit-allergies-with-negative-immunoglobulin-e-reactivity-to-bet-v-1-homologs-and-profilin-clinical-pattern-causative-fruits-and-cofactor-effect-of-gibberellin-regulated-protein
#8
Naoko Inomata, Mami Miyakawa, Michiko Aihara
Gibberellin-regulated protein (GRP) is a new allergen in peach allergy, with an amino acid sequence very well conserved through several botanical species. We investigated the allergenicity of GRP in fruit allergies other than peaches and identified the clinical characteristics of fruit allergy patients with GRP sensitization. One hundred consecutive Japanese patients with fruit allergies were enrolled in the present study. To identify the features of GRP sensitization, we selected patients with negative ImmunoCAP results for Bet v 1 homologs and profilin, which are marker allergens for pollen-food allergy syndrome (PFAS), or lipid transfer protein...
March 22, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28326540/a-life-history-approach-to-delineating-how-harsh-environments-and-hawk-temperament-traits-differentially-shape-children-s-problem-solving-skills
#9
Jennifer H Suor, Melissa L Sturge-Apple, Patrick T Davies, Dante Cicchetti
BACKGROUND: Harsh environments are known to predict deficits in children's cognitive abilities. Life history theory approaches challenge this interpretation, proposing stressed children's cognition becomes specialized to solve problems in fitness-enhancing ways. The goal of this study was to examine associations between early environmental harshness and children's problem-solving outcomes across tasks varying in ecological relevance. In addition, we utilize an evolutionary model of temperament toward further specifying whether hawk temperament traits moderate these associations...
March 22, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28323397/in-vivo-response-to-decellularized-mesothelium-scaffolds
#10
Michael J Cronce, Renea A Faulknor, Irina Pomerantseva, Xiang-Hong Liu, Scott M Goldman, Emmanuel C Ekwueme, Olive Mwizerwa, Craig M Neville, Cathryn A Sundback
Biological surgical scaffolds are used in plastic and reconstructive surgery to support structural reinforcement and regeneration of soft tissue defects. Macrophage and fibroblast cell populations heavily regulate scaffold integration into host tissue following implantation. In the present study, the biological host response to a commercially available surgical scaffold (Meso BioMatrix Surgical Mesh (MBM)) was investigated for up to 9 weeks after subcutaneous implantation; this scaffold promoted superior cell migration and infiltration previously in in vitro studies relative to other commercially available scaffolds...
March 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28323392/influence-of-steel-implant-surface-microtopography-on-soft-and-hard-tissue-integration
#11
J S Hayes, H Klöppel, R Wieling, C M Sprecher, R G Richards
After implantation of an internal fracture fixation device, blood contacts the surface, followed by protein adsorption, resulting in either soft-tissue adhesion or matrix adhesion and mineralization. Without protein adsorption and cell adhesion under the presence of micro-motion, fibrous capsule formation can occur, often surrounding a liquid filled void at the implant-tissue interface. Clinically, fibrous capsule formation is more prevalent with electropolished stainless steel (EPSS) plates than with current commercially pure titanium (cpTi) plates...
March 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28323389/atomic-force-microscopy-in-the-production-of-a-biovital-skin-graft-based-on-human-acellular-dermal-matrix-produced-in-house-and-in-vitro-cultured-human-fibroblasts
#12
Wojciech Łabuś, Justyna Glik, Agnieszka Klama-Baryła, Diana Kitala, Małgorzata Kraut, Mariusz Maj, Mariusz Nowak, Marcelina Misiuga, Andrzej Marcinkowski, Barbara Trzebicka, Ryszard Poloczek, Marek Kawecki
The most efficient method in III° burn treatment is the use of the autologous split thickness skin grafts that were donated from undamaged body area. The main limitation of this method is lack of suitable donor sites. Tissue engineering is a useful tool to solve this problem. The goal of this study was to find the most efficient way of producing biovital skin substitute based on in house produced acellular dermal matrix ADM and in vitro cultured fibroblasts. Sixty samples of sterilized human allogeneic skin (that came from 10 different donors) were used to examine the influence of decellularizing substances on extracellular matrix and clinical usefulness of the test samples of allogeneic human dermis...
March 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28323388/enhanced-intestinal-absorption-of-curcumin-in-caco-2-cell-monolayer-using-mucoadhesive-nanostructured-lipid-carriers
#13
Sanipon Chanburee, Waree Tiyaboonchai
This study aimed to compare the intestinal permeation of curcumin-loaded polymer coated nanostructured lipid carriers (NLCs) and uncoated NLCs using the Caco-2 cell model. The uncoated NLCs were prepared using a warm microemulsion technique, while polymer-coated NLCs were prepared with the same method but were followed by coating particle surface with polyethylene glycol (PEG) 400 or polyvinyl alcohol (PVA). After lyophilization, all formulations possessed a mean size of <400 nm with a zeta potential of ∼-30 mV and a high entrapment efficacy up to 90%...
March 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28323384/the-effect-of-mg-ca-sr-alloy-degradation-products-on-human-mesenchymal-stem-cells
#14
Ida S Berglund, Elliott W Dirr, Vidhya Ramaswamy, Josephine B Allen, Kyle D Allen, Michele V Manuel
Biodegradable Mg alloys have the potential to replace currently used metallic medical implant devices, likely eliminating toxicity concerns and the need for secondary surgeries, while also providing a potentially stimulating environment for tissue growth. A recently developed Mg-Ca-Sr alloy possesses advantageous characteristics over other Mg alloys, having a good combination of strength and degradation behavior, while also displaying potentially osteogenic properties. To better understand the effect of alloy degradation products on cellular mechanisms, in vitro studies using human bone marrow-derived mesenchymal stem cells were conducted...
March 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28322320/sweet-taste-in-apple-the-role-of-sorbitol-individual-sugars-organic-acids-and-volatile-compounds
#15
Eugenio Aprea, Mathilde Charles, Isabella Endrizzi, Maria Laura Corollaro, Emanuela Betta, Franco Biasioli, Flavia Gasperi
Sweetness is one of the main drivers of consumer preference, and thus is given high priority in apple breeding programmes. Due to the complexity of sweetness evaluation, soluble solid content (SSC) is commonly used as an estimation of this trait. Nevertheless, it has been demonstrated that SSC and sweet taste are poorly correlated. Though individual sugar content may vary greatly between and within apple cultivars, no previous study has tried to investigate the relationship between the amount of individual sugars, or ratios of these, and apple sweetness...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28321435/amyloid-precursor-protein-family-as-unconventional-go-coupled-receptors-and-the-control-of-neuronal-motility
#16
REVIEW
Jenna M Ramaker, Philip F Copenhaver
Cleavage of the Amyloid Precursor Protein (APP) generates amyloid peptides that accumulate in Alzheimer Disease (AD), but APP is also upregulated by developing and injured neurons, suggesting that it regulates neuronal motility. APP can also function as a G protein-coupled receptor that signals via the heterotrimeric G protein Gαo, but evidence for APP-Gαo signaling in vivo has been lacking. Using Manduca as a model system, we showed that insect APP (APPL) regulates neuronal migration in a Gαo-dependent manner...
2017: Neurogenesis (Austin, Tex.)
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
#17
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/28319983/reliability-and-validity-of-ten-consumer-activity-trackers-depend-on-walking-speed
#18
Tryntsje Fokkema, Thea J M Kooiman, Wim P Krijnen, Cees P VAN DER Schans, Martijn DE Groot
PURPOSE: To examine the test-retest reliability and validity of ten activity trackers for step counting at three different walking speeds. METHODS: Thirty-one healthy participants walked twice on a treadmill for 30 min while wearing 10 activity trackers (Polar Loop, Garmin Vivosmart, Fitbit Charge HR, Apple Watch Sport, Pebble Smartwatch, Samsung Gear S, Misfit Flash, Jawbone Up Move, Flyfit, and Moves). Participants walked three walking speeds for 10 min each; slow (3...
April 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28319346/determination-of-oleanolic-acid-in-human-plasma-and-its-association-with-olive-oil-intake-in-healthy-spanish-adults-within-the-epic-spain-cohort-study
#19
Genevieve Buckland, Antoni Pastor, Leila Lujan-Barroso, Carlos Alberto Gonzalez, Noemie Travier, Pilar Amiano, José María Huerta, Antonio Agudo, Carmen Navarro, María Dolores Chirlaque, Maria-José Sánchez, Miguel Rodríguez-Barranco, Aurelio Barricarte, Eva Ardanaz, Miren Dorronsoro, Amaia Molinuevo, José Ramón Quirós, Rafael de la Torre
SCOPE: Oleanolic acid (OA) is an important triterpenic compound found in olive oil, however little is known about its concentrations in human plasma. We aimed to determine plasma OA levels in a healthy Spanish population and compare them with estimates of dietary olive oil intake. METHODS AND RESULTS: The final study sample included 141 individuals randomly selected from the European Prospective Investigation into Cancer and Nutrition Spanish cohort. Dietary olive oil intake was estimated using validated dietary history questionnaires...
February 3, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28317851/mdhir-proteins-repress-anthocyanin-accumulation-by-interacting-with-the-mdjaz2-protein-to-inhibit-its-degradation-in-apples
#20
Ke-Qin Chen, Xian-Yan Zhao, Xiu-Hong An, Yi Tian, Dan-Dan Liu, Chun-Xiang You, Yu-Jin Hao
In higher plants, jasmonate ZIM-domain (JAZ) proteins negatively regulate the biosynthesis of anthocyanins by interacting with bHLH transcription factors. However, it is largely unknown if and how other regulators are involved in this process. In this study, the apple MdJAZ2 protein was characterized in regards to its function in the negative regulation of anthocyanin accumulation and peel coloration. MdJAZ2 was used as a bait to screen a cDNA library using the yeast two-hybrid method. The hypersensitive induced reaction (HIR) proteins, MdHIR2 and MdHIR4, were obtained from this yeast two-hybrid...
March 20, 2017: Scientific Reports
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