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https://www.readbyqxmd.com/read/29169117/3d-correction-over-2years-with-anterior-vertebral-body-growth-modulation-a-finite-element-analysis-of-screw-positioning-cable-tensioning-and-postoperative-functional-activities
#1
Nikita Cobetto, Stefan Parent, Carl-Eric Aubin
BACKGROUND: Anterior vertebral body growth modulation is a fusionless instrumentation to correct scoliosis using growth modulation. The objective was to biomechanically assess effects of cable tensioning, screw positioning and post-operative position on tridimensional correction. METHODS: The design of experiments included two variables: cable tensioning (150/200N) and screw positioning (lateral/anterior/triangulated), computationally tested on 10 scoliotic cases using a personalized finite element model to simulate spinal instrumentation, and 2years growth modulation with the device...
November 16, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29166409/post-weaning-high-fat-diet-results-in-growth-cartilage-lesions-in-young-male-rats
#2
Samuel S Haysom, Mark H Vickers, Lennex H Yu, Clare M Reynolds, Elwyn C Firth, Sue R McGlashan
To determine if a high-fat diet (HF) from weaning would result in a pro-inflammatory state and affect joint cartilage, we fed male rats either HF or Chow diet post-weaning, and voluntary wheel exercise (EX) or cage only activity (SED) after 9 weeks of age. At 17 weeks body composition, plasma biomarkers and histomorphology scores of femoro-tibial cartilages of HF-SED, HF-EX, Chow-SED and Chow-EX groups were compared. Food intake and activity were not significantly different between groups. HF diet resulted in significantly higher weight gain, %fat, fat:lean ratio, and plasma leptin, insulin and TNFα concentrations, with significant interactions between diet and exercise...
2017: PloS One
https://www.readbyqxmd.com/read/29165338/action-of-monomeric-gemini-surfactants-on-free-cells-and-biofilm-of-asaia-lannensis
#3
Anna Koziróg, Dorota Kręgiel, Bogumił Brycki
We investigated the biological activity of surfactants based on quaternary ammonium compounds: gemini surfactant hexamethylene-1,6-bis-(N,N-dimethyl-N-dodecylammonium bromide) (C6), synthesized by the reaction of N,N-dimethyl-N-dodecylamine with 1,6-dibromohexane, and its monomeric analogue dodecyltrimethylammonium bromide (DTAB). The experiments were performed with bacteria Asaia lannensis, a common spoilage in the beverage industry. The minimal inhibitory concentration (MIC) values were determined using the tube standard two-fold dilution method...
November 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29164166/juvenile-osteochondritis-dissecans-of-the-knee-does-magnetic-resonance-imaging-instability-correlate-with-the-need-for-surgical-intervention
#4
Simon Haeri Hendy, Darren de Sa, Kelly Ainsworth, Olufemi R Ayeni, Nicole Simunovic, Devin Peterson
Background: Several magnetic resonance imaging (MRI) classification systems have been developed to determine the degree of instability of juvenile osteochondritis dissecans (JOCD) lesions. Our current practice involves correlating the patients' symptoms with their MRI findings, but there are many cases in which this correlation is poor and results in incorrect classification of the stability of a JOCD lesion. Purpose: To determine whether certain MRI findings of JOCD instability are associated with the necessity for arthroscopic intervention to assess lesion stability...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29162075/the-antibiofilm-efficacy-of-nitric-oxide-on-soft-contact-lenses
#5
Dong Ju Kim, Joo-Hee Park, Marth Kim, Choul Yong Park
BACKGROUND: To investigate the antibiofilm efficacy of nitric oxide (NO) on soft contact lenses. METHODS: Nitrite (NO precursor) release from various concentrations (0-1000 μM) of sodium nitrite (NaNO2, NO donor) was measured by Griess Assay. Cell viability assay was performed using human corneal epithelial cell under various concentration (0-1000 μM) of NaNO2. Biofilm formation on soft contact lenses was achieved by adding Staphylococcus aureus or Pseudomonas aeruginosa to the culture media...
November 21, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29160181/chick-embryo-model-homing-and-host-interactions-of-tissue-engineering-aimed-human-dental-stem-cells
#6
Jennifer Adriane Dos Santos, Monica Talarico Duailibi, Durvanei Augusto Maria, Sonia Elisabete Alves de Lima Will, Paulo Cesar Simoes Silva, Ligia Ferreira Gomes, Silvio Eduardo Duailibi
Human dental stem cells (hDSC) have a potential for regenerative therapies and could differentiate in vitro into many tissues such as dentin, nerve and vascular endothelium. Gallus gallus domesticus developing fertilized egg, or chick embryo is an experimental model absent of xenografts rejection, largely employed in replacement of mammal species in scientific research and pre-clinical studies to evaluate angiogenesis and vasculogenesis, tissue differentiation, and embryonic development. This multiscale research deals with the homing and cell signaling effects of a standardized hDSC towards the receptor tissues of Gallus gallus domesticus in ovo...
November 21, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29157992/complications-associated-with-the-techniques-for-anterior-cruciate-ligament-reconstruction-in-patients-under-18-years-old-a-systematic-review
#7
W Tovar-Cuellar, F Galván-Villamarín, J Ortiz-Morales
OBJECTIVE: Determine the complications related to the different techniques for anterior cruciate ligament reconstruction in patients under 18 years old. METHODOLOGY: Systematic review using the databases Medline, Cochrane Database of Systematic Reviews and Embase (until July 2016), additional studies were included conducting a search of the references of previous studies. The terms included in the search were: «cruciate», «ligament», «anterior», «immature», «complications», «outcome», «acl reconstruction»,« cruciate ligament anterior reconstruction», «children», «child», «infants», «adolescent», «open physis», «growth plate» and «skeletally immature»...
November 17, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/29155336/evaluation-of-the-combined-effect-of-nir-laser-and-ionizing-radiation-on-cellular-damages-induced-by-iudr-loaded-plga-coated-nano-graphene-oxide
#8
Samira Kargar, Samideh Khoei, Sepideh Khoee, Sakine Shirvalilou, Seied Rabi Mahdavi
Glioma is one of the most common malignant cancers of the central nervous system (CNS). Radiatherapy and chemotherapy may be used to slow the growth of tumors that cannot be removed with surgery. The current study developed a combination therapy tool using Nanographene oxide (NGO) functionalized with poly lactic-co-glycolic acid (PLGA) as a carrier of 5-iodo-2-deoxyuridine (IUdR) for glioma cancer treatment. U87MG cells were treated in different groups with IUdR, PLGA-coated Nanographene oxide (PLGA-NGO), IUdR-loaded PLGA-coated Nanographene oxide (IUdR-PLGA-NGO), 2Gy 6MV X-ray radiation, and near-infrared region (NIR) laser radiation...
November 16, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29154473/influences-of-quorum-quenching-probiotic-bacteria-on-the-gut-microbial-community-and-immune-function-in-weaning-pigs
#9
Jonggun Kim, Jaepil Kim, Younghoon Kim, Sangnam Oh, Minho Song, Jee Hwan Choe, Kwang-Youn Whang, Kwang Hyun Kim, Sejong Oh
The aim of this study is to investigate the dynamic gut microbial diversity in weaning swine after administering feed supplemented with probiotic bacteria that specifically inhibit the activity of quorum molecules. Initially, the universal quorum molecule autoinducer-2 (AI-2) bioassay results indicated that AI-2 activity was profoundly inhibited in enterohemorrhagic Escherichia coli (EHEC) O157:H7 in the presence of Lactobacillus acidophilus strain 30SC cell extract, although the growth of EHEC was not affected...
November 20, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29153712/facile-preparation-of-hexagonal-tin-sulfide-nanoplates-anchored-on-graphene-nanosheets-for-highly-efficient-sodium-storage
#10
Jiajia Ye, Lei Qi, Binbin Liu, Caixia Xu
Tin sulfide/graphene nanocomposite with hexagonal tin sulfide (SnS2) nanoplates anchored on reduced graphene oxide (RGO) nanosheets was easily synthesized by one-step controllable hydrothermal growth followed by mild reduction. The SnS2 hexagonal-plates distributed tightly and uniformly on the RGO support in a more favorable face-to-face (FTF) manner. The formation of SnS2 nanoplates with hexagonal morphology may result from the accelerating growth of six energetically equivalent high-index (1 1 0) crystal planes and prohibiting growth of the (0 0 1) crystal plane on graphene...
November 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29153522/short-communication-growth-of-dairy-isolates-of-geobacillus-thermoglucosidans-in-skim-milk-depends-on-lactose-degradation-products-supplied-by-anoxybacillus-flavithermus-as-secondary-species
#11
Y Zhao, M Kumar, M P M Caspers, M N Nierop Groot, J M B M van der Vossen, T Abee
Thermophilic bacilli such as Anoxybacillus and Geobacillus are important contaminants in dairy powder products. Remarkably, one of the common contaminants, Geobacillus thermoglucosidans, showed poor growth in skim milk, whereas significant growth of G. thermoglucosidans was observed in the presence of an Anoxybacillus flavithermus dairy isolate. In the present study, we investigated the underlying reason for this growth dependence of G. thermoglucosidans. Whole-genome sequences of 4 A. flavithermus strains and 4 G...
November 15, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29153513/biofilm-formation-of-staphylococcus-aureus-dairy-isolates-representing-different-genotypes
#12
E Thiran, P A Di Ciccio, H U Graber, E Zanardi, A Ianieri, J Hummerjohann
The objective of this study was to compare the biofilm-forming capabilities of different genotypes of Staphylococcus aureus dairy isolates from Switzerland and northern Italy, including Staph. aureus genotype B (GTB) and methicillin-resistant Staph. aureus (MRSA). We hypothesized that biofilm formation might be more pronounced in the contagious GTB isolates compared with other genotypes affecting individual animals. Twenty-four dairy isolates, including 9 MRSA, were further characterized by genotyping by using ribosomal spacer PCR, spa typing, biofilm formation under static and dynamic conditions, and scanning electron microscopy...
November 15, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29152587/a-synthetic-community-system-for-probing-microbial-interactions-driven-by-exometabolites
#13
John L Chodkowski, Ashley Shade
Though most microorganisms live within a community, we have modest knowledge about microbial interactions and their implications for community properties and ecosystem functions. To advance understanding of microbial interactions, we describe a straightforward synthetic community system that can be used to interrogate exometabolite interactions among microorganisms. The filter plate system (also known as the Transwell system) physically separates microbial populations, but allows for chemical interactions via a shared medium reservoir...
November 2017: MSystems
https://www.readbyqxmd.com/read/29150912/sustaining-an-efficient-and-effective-cho-cell-line-development-platform-by-incorporation-of-24-deep-well-plate-screening-and-multivariate-analysis
#14
Alessandro Mora, Sheng Sam Zhang, Gerald Carson, Bernard Nabiswa, Patrick Hossler, Seongkyu Yoon
Efficient and effective cell line screening is paramount towards a successful biomanufacturing program. Here we describe the implementation of 24-deep well plate screening of CHO lines as part of the cell line development platform at AbbVie. Incorporation of this approach accelerated the identification of the best candidate lines for process development. In an effort to quantify and predict process performance comparability, we compared cell culture performance in 24-deep well plates (24-DWP) and in shake flasks, for a panel of Chinese Hamster Ovary cell lines expressing a monoclonal antibody...
November 18, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/29147103/antibacterial-effects-against-various-foodborne-pathogens-and-sensory-properties-of-yogurt-supplemented-with-panax-ginseng-marc-extract
#15
Su Jin Eom, Ji Eun Hwang, Kee-Tae Kim, Hyun-Dong Paik
Panax ginseng marc is produced from fresh ginseng roots during processing and is generally treated as industrial waste. The primary aim of this study was to improve its utilization in the dairy industry as a potential high-value resource. Yogurt was prepared from 11% skim milk powder, 0.1% pectin, 10% sucrose, and ginseng marc ethanol extract (GME, 0.5% and 1.0%) in milk, and was inoculated with a 0.02% yogurt culture (Lactobacillus acidophilus, Bifidobacterium longum, and Streptococcus thermophilus). After fermentation at 40°C for 6-8 h, the physicochemical properties of samples were analyzed by the AOAC, Kjeldahl, and Soxhlet methods...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/29147017/oxidation-behavior-of-graphene-coated-copper-at-intrinsic-graphene-defects-of-different-origins
#16
Jinsung Kwak, Yongsu Jo, Soon-Dong Park, Na Yeon Kim, Se-Yang Kim, Hyung-Joon Shin, Zonghoon Lee, Sung Youb Kim, Soon-Yong Kwon
The development of ultrathin barrier films is vital to the advanced semiconductor industry. Graphene appears to hold promise as a protective coating; however, the polycrystalline and defective nature of engineered graphene hinders its practical applications. Here, we investigate the oxidation behavior of graphene-coated Cu foils at intrinsic graphene defects of different origins. Macro-scale information regarding the spatial distribution and oxidation resistance of various graphene defects is readily obtained using optical and electron microscopies after the hot-plate annealing...
November 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/29146595/the-cartilage-specific-lectin-c-type-lectin-domain-family-3-member-a-clec3a-enhances-tissue-plasminogen-activator-mediated-plasminogen-activation
#17
Daniela Lau, Dzemal Elezagic, Gabriele Hermes, Matthias Mörgelin, Alexander P Wohl, Manuel Koch, Ursula Hartmann, Stefan Höllriegl, Raimund Wagener, Mats Paulsson, Thomas Streichert, Andreas R Klatt
C-type lectin domain family 3 member A (CLEC3A) is a poorly characterized protein belonging to the superfamily of C-type lectins. Its closest homologue tetranectin binds to the kringle 4 domain of plasminogen and enhances its association with tissue plasminogen activator (tPA) thereby enhancing plasmin production, but whether CLEC3A contributes to plasminogen activation is unknown. Here, we recombinantly expressed murine and human full-length CLEC3As as well as truncated forms of CLEC3A in HEK-293 EBNA cells...
November 16, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29145495/regulatory-mechanism-of-ccn2-production-by-serotonin-5-ht-via-5-ht2a-and-5-ht2b-receptors-in-chondrocytes
#18
Ayaka Hori, Takashi Nishida, Shogo Takashiba, Satoshi Kubota, Masaharu Takigawa
Serotonin (5-hydroxytryptamine: 5-HT) is recognized as a neurotransmitter in the central nerve system and as a regulator of systemic blood pressure in the peripheral tissues. Recently, it was reported that 5-HT2 receptors (5-HT2Rs) were expressed in cartilage tissues lacking both vessels and neurons, suggesting possible novel functions of 5-HT during cartilage development and regeneration. Our previous data indicated that CCN family protein 2/connective tissue growth factor (CCN2/CTGF) plays a central role in cartilage development and regeneration...
2017: PloS One
https://www.readbyqxmd.com/read/29144601/anti-bacterial-anti-biofilm-and-anti-quorum-sensing-effects-of-thymus-daenensis-and-satureja-hortensis-essential-oils-against-staphylococcus-aureus-isolates
#19
Aram Sharifi, Abdolmajid Mohammadzadeh, Taghi Zahraei Salehi, Pezhman Mahmoodi
AIMS: The present study was conducted to investigate the effects of Thymus daenensis and Satureja hortensis essential oils (EOs) on the planktonic growth, biofilm formation and quorum sensing (QS) of some Staphylococcus aureus isolates (strong biofilm producers). METHODS AND RESULTS: MIC of the EOs, inhibition of biofilm formation as well as disruption of preformed S. aureus biofilms were assessed. The anti-biofilm activity of the EOs was determined using microtiter-plate test (MtP) and scanning electron microscope (SEM)...
November 16, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29142264/impairment-of-bkca-channels-in-human-placental-chorionic-plate-arteries-is-potentially-relevant-to-the-development-of-preeclampsia
#20
Mengzhou He, Fanfan Li, Meitao Yang, Yao Fan, Rajluxmee Beejadhursing, Yin Xie, Yuan Zhou, Dongrui Deng
Preeclampsia has known associations with insufficient placental perfusion. The large-conductance Ca(2+)-activated K(+) (BKca) channels that have recently been found to play important roles in cellular growth and vasodilatation could potentially participate in the development of preeclampsia. However, the mechanisms by which downregulated BKca channels are involved in the development of preeclampsia remain unknown. In this study, we investigated the mechanism(s) underlying the impairment of vascular tone regulation by BKca channels in human placental chorionic plate arteries (CPAs) in preeclampsia...
November 16, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
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