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https://www.readbyqxmd.com/read/29784856/a-cell-surface-aggregation-promoting-factor-from-lactobacillus-gasseri-contributes-towards-inhibition-of-trichomonas-vaginalis-adhesion-to-human-vaginal-ectocervical-cells
#1
Niha Phukan, Anna E S Brooks, Augusto Simoes-Barbosa
Trichomoniasis, a prevalent sexually transmitted infection, is commonly symptomatic in women. The causative agent is Trichomonas vaginalis , an extracellular protozoan parasite. The host-protective mechanisms and molecules of vaginal lactobacilli that could counteract with this pathogen are largely unknown. This study examines the inhibition promoted by Lactobacillus gasseri against the adhesion of T. vaginalis to host cells, a critical virulence aspect of this pathogen. We observed that the vaginal L. gasseri ATCC 9857 is highly inhibitory by various contact-dependent mechanisms and surface proteins are largely responsible for this inhibitory phenotype...
May 21, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29784461/stability-and-reactivity-of-%C3%AE-%C3%AE-ptms-silane-in-some-commercial-primer-and-adhesive-formulations
#2
Maria Dimitriadi, Angeliki Panagiotopoulou, Maria Pelecanou, Konstantina Yannakopoulou, George Eliades
OBJECTIVES: To evaluate the stability and reactivity of γ-methacryloxypropyl trimethoxysilane (MPTMS) in commercially available primers and adhesives. METHODS: Four representative primer formulations [Calibra Silane Coupling Agent/Dentsply (CLB), G-Multi Primer/GC (GMP), Kerr Silane Primer/Kerr (KSP), Monobond Plus/Ivoclar Vivadent (MBP)] and a universal adhesive [Scotchbond Universal/3M ESPE (SBU)] containing MPTMS were analyzed spectroscopically. For the stability study, the silanol content was evaluated in bulk solutions as received (reference-RE) and after aging (AG, 48°C/1month) by 1 H, 13 C, 31 P NMR and in fresh films by transmission FTIR analysis (TIR, films applied on Ge windows after solvent evaporation)...
May 18, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29783778/anti-tumorigenic-and-anti-metastatic-activity-of-the-sponge-derived-marine-drugs-aeroplysinin-1-and-isofistularin-3-against-pheochromocytoma-in-vitro
#3
Nicole Bechmann, Hermann Ehrlich, Graeme Eisenhofer, Andre Ehrlich, Stephan Meschke, Christian G Ziegler, Stefan R Bornstein
Over 10% of pheochromocytoma and paraganglioma (PPGL) patients have malignant disease at their first presentation in the clinic. Development of malignancy and the underlying molecular pathways in PPGLs are poorly understood and efficient treatment strategies are missing. Marine sponges provide a natural source of promising anti-tumorigenic and anti-metastatic agents. We evaluate the anti-tumorigenic and anti-metastatic potential of Aeroplysinin-1 and Isofistularin-3, two secondary metabolites isolated from the marine sponge Aplysina aerophoba , on pheochromocytoma cells...
May 20, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29782890/novel-dental-adhesive-resin-with-crack-self-healing-antimicrobial-and-remineralization-properties
#4
Shichao Yue, Junling Wu, Qiang Zhang, Ke Zhang, Michael D Weir, Satoshi Imazato, Yuxing Bai, Hockin H K Xu
OBJECTIVES: Secondary caries at the tooth-restoration margins is a primary reason for restoration failure. Cracks at the margins lead to leakage which can trap bacteria, producing acids to cause caries. To date, there has been no report on developing an adhesive resin that has self-healing, antibacterial and remineralizing capabilities. The objectives of this study were to: (1) develop the first self-healing adhesive with antimicrobial and remineralizing capabilities, and (2) investigate the effects of incorporating microcapsules, dimethylaminohexadecyl methacrylate (DMAHDM) and nanoparticles of amorphous calcium phosphate (NACP) for the first time...
May 18, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29781371/quantification-of-tantalum-sedimentation-rates-in-liquid-embolic-agents
#5
J R Mason, C Dodge, G Benndorf
Background Endovascular treatment (EVT) of brain arteriovenous malformations has evolved from cyanoacrylate derivatives such as N-butyl cyanoacrylate, an adhesive glue, to ethylene vinyl copolymer-based liquid embolics such as Onyx® and SQUID® dissolved in dimethyl sulfoxide. Although these agents offer several advantages, their rapidly decreasing radiopacity, as a result of the sedimentation of tantalum powder, compromises visual control during EVT. This study aims to quantify and compare tantalum sedimentation rates of several liquid embolic agents, and determine their effects on radiopacity...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29776611/nasal-delivery-of-chitosan-alginate-nanoparticle-encapsulated-bee-apis-mellifera-venom-promotes-antibody-production-and-viral-clearance-during-porcine-reproductive-and-respiratory-syndrome-virus-infection-by-modulating-t-cell-related-responses
#6
Jina Lee, Yun-Mi Kim, Ju-Heon Kim, Cheong-Weon Cho, Jong-Woon Jeon, Jin-Kyu Park, Sang-Ho Lee, Bock-Gie Jung, Bong-Joo Lee
In this study, we administered specially developed chitosan/alginate nanoparticle encapsulated BV (CH/AL-BV) which has slow-releasing properties and mucosal adhesiveness to pig via nasal route and evaluate whether it can facilitate systemic immune response and improve clearance of porcine reproductive and respiratory syndrome virus (PRRSV). The CH/AL-BV-administered group with PRRSV vaccination showed significantly enhanced Th1-related responses including a high population of CD4+ T lymphocyte and cytokine mRNA levels including interferon-gamma (IFN-γ) and interleukin (IL)-12 and increased PRRSV-specific IgG levels...
June 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29775211/proanthocyanidins-will-they-effectively-restrain-conspicuous-bacterial-strains-devolving-on-urinary-tract-infection
#7
REVIEW
Venkataseshan Jagannathan, Pragasam Viswanathan
Struvite or infection stones are one of the major clinical burdens among urinary tract infection, which occur due to the interaction between microbes and urine mineral components. Numerous urinary tract infection (UTI) causing microbes regulate through biofilm formation for survival from host defense, it is often found difficult in its eradication with simple anti-microbial agents and also the chance of recurrence and resistance development is significantly high. Cranberry consumption and maintenance of urinary tract health have been supported by clinical, epidemiological, and mechanistic studies...
May 18, 2018: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/29773839/layer-by-layer-sirna-poly-l-lysine-multilayers-on-polydopamine-coated-surface-for-efficient-cell-adhesion-and-gene-silencing
#8
Cheol Am Hong, Ho Yeon Son, Yoon Sung Nam
For tissue engineering applications, small interfering RNA (siRNA) is an attractive agent for controlling cellular functions and differentiation. Although polyionic condensation of nucleic acids with polycations has been widely used for gene delivery, siRNA is not strongly associated with cationic carriers due to its low charge density and rigid molecular structures. The use of an excess amount of cationic carriers is often used for siRNA condensation, though they can induce severe cytotoxicity. Here we introduce the self-assembly of siRNA with mild polyelectrolytes into multilayers for efficient gene silencing during cell proliferation...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29770613/in-situ-chemically-specific-mapping-of-agrochemical-seed-coatings-using-stimulated-raman-scattering-microscopy
#9
Chun-Chin Wang, Siân Moorhouse, Chris Stain, Mark Seymour, Ellen Green, Steven Penfield, Julian Moger
Providing sufficient, healthy food for the increasing global population is putting a great deal of pressure on the agrochemical industry to maximise crop yields without sustaining environmental damage. The growth and yield of every plant with sexual reproduction, depends on germination and emergence of sown seeds, which is affected greatly by seed disease. This can be most effectively controlled by treating seeds with pesticides before they are sown. An effective seed coating treatment requires a high surface coverage and adhesion of active ingredients onto the seed surface and the addition of adhesive agents in coating formulations plays a key role in achieving this...
May 17, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29768847/synthesis-of-antioxidative-conductive-copper-inks-with-superior-adhesion
#10
Wei-Yang Ma, Yao-Yi Cheng, Jia-Kun Chen, Kai-Hsuan Chan, Zheng-Jie Lin, Wei-Hao Chou, Wei-Chen Chang
Conductive films have attracted much attention in the printed electronics industry. To date, expensive conductive silver inks have been utilized widely in these conductive films, which ultimately increase the cost. Hence the alternative low-cost copper inks will be of great interest in the future. This paper will present how to synthesize antioxidative conductive copper inks with superior adhesion to FR4 substrates. The antioxidative conductive copper inks were prepared by dispersing the antioxidative copper nanoparticles in diethylene glycol with the bisphenol-F type BEF170 epoxy resin as a binder and the Methyl-5-norbornene-2,3-dicarboxylic anhydride (NMA) as a curing agent, then were coated on FR4 substrates to form the copper films, followed by sintering at 250 °C in nitrogen atmosphere for 20 minutes...
January 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29768522/tif4-varnish-protects-the-retention-of-brackets-to-enamel-after-in-vitro-mild-erosive-challenge
#11
Maria Isabel Dantas de Medeiros, Hugo Lemes Carlo, Rogério Lacerda Dos Santos, Frederico Barbosa Sousa, Ricardo Dias de Castro, Renata Cristina Sobreira França, Fabíola Galbiatti de Carvalho
The effect of fluoride agents on the retention of orthodontic brackets to enamel under erosive challenge is little investigated. The aim of this study was to evaluate the effect of titanium tetrafluoride (TiF4) and sodium fluoride (NaF) agents on the shear bond strength of brackets to enamel and on the enamel microhardness around brackets under erosive challenge. Brackets were bonded to bovine incisors. Five groups were formed according to fluoride application (n=10): TiF4 varnish, TiF4 solution, NaF varnish, NaF solution and control (without application)...
May 14, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29765895/effect-of-smear-layer-deproteinization-on-bonding-of-self-etch-adhesives-to-dentin-a-systematic-review-and-meta-analysis
#12
Khaldoan H Alshaikh, Hamdi H H Hamama, Salah H Mahmoud
Objectives: The aim of this systematic review was to critically analyze previously published studies of the effects of dentin surface pretreatment with deproteinizing agents on the bonding of self-etch (SE) adhesives to dentin. Additionally, a meta-analysis was conducted to quantify the effects of the above-mentioned surface pretreatment methods on the bonding of SE adhesives to dentin. Materials and Methods: An electronic search was performed using the following databases: Scopus, PubMed and ScienceDirect...
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765526/esophageal-cancer-cells-resistant-to-t-dm1-display-alterations-in-cell-adhesion-and-the-prostaglandin-pathway
#13
Juliette Sauveur, Eva-Laure Matera, Kamel Chettab, Philippe Valet, Jerome Guitton, Ariel Savina, Charles Dumontet
Trastuzumab-emtansine (T-DM1) is an antibody-drug conjugate that specifically targets HER2 thanks to its antibody component trastuzumab. In spite of responses to this novel agent, acquired resistance to treatment remains a major obstacle. Prolonged in vitro exposure of the gastroesophageal junction cancer cell line OE-19 to T-DM1, in the absence or presence of ciclosporin A resulted in the selection of two resistant cell lines to T-DM1. T-DM1-resistant cells presented an increased expression of adhesion genes, altered spreading and higher sensitivity to anoikis than parental cells...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29761921/trans-cinnamic-aldehyde-inhibit-aggregatibacter-actinomycetemcomitans-induced-inflammation-thp-1-derived-macrophages-via-autophagy-activation
#14
Jin Chung, Sumi Kim, Hyun Ah Lee, Mi Hee Park, Seyeon Kim, Yu Ri Song, HeeSam Na
OBJECTIVES: Inflammation is an essential response against bacterial infection as a host defense mechanism, which can lead to tissue damage. Aggregatibacter actinomycetemcomitans (Aa) is major pathogen for aggressive periodontitis characterized by rapid destruction of periodontal tissue surrounding teeth. Trans-cinnamic aldehyde is a key bioactive compound of the cinnamon extracts, which has anti-inflammatory, antioxidant, antipyretic, antimicrobial, and anti-cancer properties. The objective of the present study was to investigate the anti-inflammatory effect of trans-cinnamic aldehyde against Aa infection in human THP-1 derived macrophages and on Aa-induced periodontitis in mice...
May 15, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/29761603/a-sticky-mucin-inspired-dna-polysaccharide-binder-for-silicon-and-silicon-graphite-blended-anodes-in-lithium-ion-batteries
#15
Sunjin Kim, You Kyeong Jeong, Younseon Wang, Haeshin Lee, Jang Wook Choi
New binder concepts have lately demonstrated improvements in the cycle life of high-capacity silicon anodes. Those binder designs adopt adhesive functional groups to enhance affinity with silicon particles and 3D network conformation to secure electrode integrity. However, homogeneous distribution of silicon particles in the presence of a substantial volumetric content of carbonaceous components (i.e., conductive agent, graphite, etc.) is still difficult to achieve while the binder maintains its desired 3D network...
May 14, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29760550/synergistic-antifungal-effect-of-chitosan-stabilized-selenium-nanoparticles-synthesized-by-pulsed-laser-ablation-in-liquids-against-candida-albicans-biofilms
#16
Humberto H Lara, Gregory Guisbiers, Jonathan Mendoza, Lawrence C Mimun, Brandy A Vincent, Jose L Lopez-Ribot, Kelly L Nash
Background: Candida albicans is a major opportunistic fungal pathogen. One of the most important virulence factors that contribute to the pathogenesis of candidiasis is its ability to form biofilms. A key characteristic of Candida biofilms is their resistance to antifungal agents. Due to significant morbidity and mortality rates related to biofilm-associated drug resistance, there is an urgency to develop novel nanotechnology-based approaches preventing biofilm-related infections. Methods: In this study, we report, for the first time, the synthesis of selenium nanoparticles by irradiating selenium pellets by nanosecond pulsed laser ablation in liquid chitosan as a capping agent...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29750232/in-vitro-evaluation-of-bond-strength-of-four-self-etching-cements
#17
Julio Chávez-Lozada, Carmen Urquía-Morales
Indirect restorations need to be attached with adhesive luting agents to prevent them from becoming dislodged and provide adequate marginal sealing. The aim of this study was to evaluate bond strength to dentin of self-etching resin cements. MATERIALS AND METHODS: 75 flat dentin surfaces were randomly distributed among 5 groups, according to cements used; Group 1: RelyxU100 (3M/ESPE), Group 2: Bis Cem (Bisco), Group 3: Max Cem (Kerr), Group 4: SeT PP (SDI) and Group 5: Relyx ARC (3M/ESPE), control...
December 2017: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/29742254/effects-of-three-silane-primers-and-five-adhesive-agents-on-the-bond-strength-of-composite-material-for-a-computer-aided-design-and-manufacturing-system
#18
Ayano Shinohara, Yohsuke Taira, Michino Sakihara, Takashi Sawase
Objective The objective of this study was to evaluate the effects of combinations of silane primers and adhesive agents on the bond strength of a composite block for a computer-aided design and manufacturing system. Material and Methods Three silane primers [Clearfil Ceramic Primer (CP), Super-Bond PZ Primer (PZ), and GC Ceramic Primer II (GP)] were used in conjunction with five adhesive agents [G-Premio Bond (P-Bond), Repair Adhe Adhesive (R-Adhesive), Super-Bond D-Liner Dual (SB-Dual), Super-Bond C&B (SB-Self), and SB-Dual without tributylborane derivative (SB-Light)]...
2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29738534/low-expression-of-neural-cell-adhesion-molecule-cd56-is-associated-with-low-efficacy-of-bortezomib-plus-dexamethasone-therapy-in-multiple-myeloma
#19
Takashi Yoshida, Masaki Ri, Shiori Kinoshita, Tomoko Narita, Haruhito Totani, Reham Ashour, Asahi Ito, Shigeru Kusumoto, Takashi Ishida, Hirokazu Komatsu, Shinsuke Iida
Bortezomib (Btz) is an active agent used to treat multiple myeloma (MM). Not all patients who receive Btz-containing therapy show a favorable response. Interaction of cellular adhesion molecules with MM and bone marrow stromal cells is crucial for the survival of MM cells. However, little is known about the role of these molecules in the sensitivity of MM to Btz-containing therapy. Thus, we evaluated the correlation between the level of cellular adhesion molecules in MM cells and the efficacy of Btz plus dexamethasone (Bd) therapy...
2018: PloS One
https://www.readbyqxmd.com/read/29737636/a-peroxiredoxin-based-proteinaceous-scaffold-for-the-growth-and-differentiation-of-neuronal-cells-and-tumour-stem-cells-in-the-absence-of-prodifferentiation-agents
#20
Annamaria Cimini, Matteo Ardini, Roberta Gentile, Francesco Giansanti, Elisabetta Benedetti, Loredana Cristiano, Alessia Fidoamore, Stefano Scotti, Gloria Panella, Francesco Angelucci, Rodolfo Ippoliti
The use of nanoscale materials in the design of scaffolds for CNS tissue is increasing, due to their ability to promote cell adhesion, to mimic an extracellular matrix microenvironment and to interact with neuronal membranes. In this framework, one of the major challenges when using undifferentiated neural cells is how to control the differentiation process. Here we report the characterization of a scaffold based on the self-assembled nanotubes of a mutant of the protein peroxiredoxin (from Schistosoma mansoni or Bos taurus), which allows the growth and differentiation of a model neuronal cell line (SHSY5Y)...
September 2017: Journal of Tissue Engineering and Regenerative Medicine
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