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https://www.readbyqxmd.com/read/28648958/use-of-a-three-dimensional-custom-made-porous-titanium-prosthesis-for-mandibular-body-reconstruction
#1
Q Qassemyar, N Assouly, S Temam, F Kolb
The progress made in recent years in the field of head and neck bone reconstruction is directly related to technological advancements made in computer-aided design and manufacturing (CAD/CAM) and three-dimensional printing in particular. Today these technologies are mainly used in mandibular reconstruction to manufacture aids for harvesting and shaping bone flaps. However problems remain when addressing patients with a contraindication to microsurgery who need extensive bone reconstruction. For these patients who cannot benefit from vascularized bone grafts, surgeons have to find alternative solutions aimed at maintaining best function and aesthetics...
June 22, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28648284/common-molecular-subtypes-among-asian-hepatocellular-carcinoma-and-cholangiocarcinoma
#2
Jittiporn Chaisaingmongkol, Anuradha Budhu, Hien Dang, Siritida Rabibhadana, Benjarath Pupacdi, So Mee Kwon, Marshonna Forgues, Yotsawat Pomyen, Vajarabhongsa Bhudhisawasdi, Nirush Lertprasertsuke, Anon Chotirosniramit, Chawalit Pairojkul, Chirayu U Auewarakul, Thaniya Sricharunrat, Kannika Phornphutkul, Suleeporn Sangrajrang, Maggie Cam, Ping He, Stephen M Hewitt, Kris Ylaya, Xiaolin Wu, Jesper B Andersen, Snorri S Thorgeirsson, Joshua J Waterfall, Yuelin J Zhu, Jennifer Walling, Holly S Stevenson, Daniel Edelman, Paul S Meltzer, Christopher A Loffredo, Natsuko Hama, Tatsuhiro Shibata, Robert H Wiltrout, Curtis C Harris, Chulabhorn Mahidol, Mathuros Ruchirawat, Xin W Wang
Intrahepatic cholangiocarcinoma (ICC) and hepatocellular carcinoma (HCC) are clinically disparate primary liver cancers with etiological and biological heterogeneity. We identified common molecular subtypes linked to similar prognosis among 199 Thai ICC and HCC patients through systems integration of genomics, transcriptomics, and metabolomics. While ICC and HCC share recurrently mutated genes, including TP53, ARID1A, and ARID2, mitotic checkpoint anomalies distinguish the C1 subtype with key drivers PLK1 and ECT2, whereas the C2 subtype is linked to obesity, T cell infiltration, and bile acid metabolism...
June 6, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28647474/antiviral-profiling-of-the-capsid-assembly-modulator-bay41-4109-on-full-length-hbv-genotype-a-h-clinical-isolates-and-core-site-directed-mutants-in-vitro
#3
Jan Martin Berke, Ying Tan, Thierry Verbinnen, Pascale Dehertogh, Karen Vergauwen, Ann Vos, Oliver Lenz, Frederik Pauwels
The HBV core protein represents an attractive target for new antiviral therapies due to its multiple functions within the viral life-cycle. Here, we report the antiviral activity of the capsid assembly modulator (CAM) BAY41-4109 and two nucleos(t)ide analogues (NAs) on a diverse panel of 54 HBV clinical isolates from genotype (GT) A-H and assessed the impact of core amino acid (aa) substitutions using site-directed mutants (SDMs). The median EC50 values of BAY41-4109 across genotypes ranged from 26 nM in GT G to 215 nM in GT F irrespective of the presence of NA resistance mutations compared to 43 nM for the GT D reference construct...
June 21, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28647224/does-artificial-aging-affect-mechanical-properties-of-cad-cam-composite-materials
#4
Ferhan Egilmez, Gulfem Ergun, Isil Cekic-Nagas, Pekka K Vallittu, Lippo V J Lassila
PURPOSE: The purpose of this study was to determine the flexural strength and Weibull characteristics of different CAD/CAM materials after different in vitro aging conditions. METHODS: The specimens were randomly assigned to one of the six in vitro aging conditions: (1) water storage (37°C, 3 weeks), (2) boiling water (24h), (3) hydrochloric acid exposure (pH: 1.2, 24h), (4) autoclave treatment (134°C, 200kPa, 12h), (5) thermal cycling (5000 times, 5-55°C), (6) cyclic loading (100N, 50,000 cycles)...
June 21, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28646047/rcvs-council-overwhelmingly-rejects-position-statement-on-cam-therapies
#5
(no author information available yet)
No abstract text is available yet for this article.
June 24, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28645670/fracture-resistance-of-cad-cam-monolithic-ceramic-and-veneered-zirconia-molar-crowns-after-aging-in-a-mastication-simulator
#6
Merve Bankoğlu Güngör, Secil Karakoca Nemli
STATEMENT OF PROBLEM: The demand for ceramic restorations has increased over the past years, and now various machinable materials can be used for chairside computer-aided design and computer aided manufacturing (CAD-CAM) systems. Limited studies of these new materials make it difficult to evaluate their mechanical performance, advantages, and limitations. PURPOSE: The purpose of this in vitro study was to investigate the fracture resistance of CAD-CAM monolithic ceramic and veneered zirconia molar crowns after thermomechanical aging...
June 20, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28645292/implementation-of-tobacco-cessation-brief-intervention-in-complementary-and-alternative-medicine-practice-qualitative-evaluation
#7
Emery R Eaves, Amy Howerter, Mark Nichter, Lysbeth Floden, Judith S Gordon, Cheryl Ritenbaugh, Myra L Muramoto
BACKGROUND: This article presents findings from qualitative interviews conducted as part of a research study that trained Acupuncture, Massage, and Chiropractic practitioners' in Arizona, US, to implement evidence-based tobacco cessation brief interventions (BI) in their routine practice. The qualitative phase of the overall study aimed to assess: the impact of tailored training in evidence-based tobacco cessation BI on complementary and alternative medicine (CAM) practitioners' knowledge and willingness to implement BIs in their routine practice; and their patients' responses to cessation intervention in CAM context...
June 23, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28645068/fracture-roughness-and-phase-transformation-in-cad-cam-milling-and-subsequent-surface-treatments-of-lithium-metasilicate-disilicate-glass-ceramics
#8
Abdur-Rasheed Alao, Richard Stoll, Xiao-Fei Song, John R Abbott, Yu Zhang, Jaafar Abduo, Ling Yin
This paper studied surface fracture, roughness and morphology, phase transformations, and material removal mechanisms of lithium metasilicate/disilicate glass ceramics (LMGC/LDGC) in CAD/CAM-milling and subsequent surface treatments. LMGC (IPS e.max CAD) blocks were milled using a chairside dental CAD/CAM milling unit and then treated in sintering, polishing and glazing processes. X-ray diffraction was performed on all processed surfaces. Scanning electron microscopy (SEM) was applied to analyse surface fracture and morphology...
June 15, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28642921/fracture-behavior-of-single-structure-fiber-reinforced-composite-restorations
#9
Kohji Nagata, Sufyan K Garoushi, Pekka K Vallittu, Noriyuki Wakabayashi, Hidekazu Takahashi, Lippo V J Lassila
Objective: The applications of single-structure fiber-reinforced composite (FRC) in restorative dentistry have not been well reported. This study aimed to clarify the static mechanical properties of anterior crown restorations prepared using two types of single-structure FRC. Materials and methods: An experimental crown restoration was designed for an upper anterior incisor. The restorations were made from IPS Empress CAD for CEREC (Emp), IPS e.max(®) CAD (eMx), experimental single-structure all-FRC (a-FRC), Filtek™ Supreme XTE (XTE), and commercially available single-structure short-FRC (everX Posterior™) (n = 8 for each material) (s-FRC)...
December 2016: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/28642877/the-effect-of-sodium-valproate-on-the-glioblastoma-u87-cell-line-tumor-development-on-the-chicken-embryo-chorioallantoic-membrane-and-on-ezh2-and-p53-expression
#10
Dovilė Kavaliauskaitė, Donatas Stakišaitis, Justė Martinkutė, Lina Šlekienė, Arūnas Kazlauskas, Ingrida Balnytė, Vaiva Lesauskaitė, Angelija Valančiūtė
Literature data support evidences that glioblastoma (GBM) patients experience prolonged survival due to sodium valproate (NaVP) treatment. The study assessed the human GBM cell U87 xenograft studied in the chicken embryo chorioallantoic membrane (CAM) model evaluating NaVP effect on tumor. Three groups of tumors (each n = 10) were studied: nontreated, treated with 4 mM, and treated with 8 mM of NaVP. The majority of tumors without NaVP treatment during tumor growth destroyed the chorionic epithelium, invaded the mesenchyme, and induced angiogenesis...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28642450/cbp501-inhibits-egf-dependent-cell-migration-invasion-and-epithelial-to-mesenchymal-transition-of-non-small-cell-lung-cancer-cells-by-blocking-kras-to-calmodulin-binding
#11
Naoya Saito, Naoki Mine, Donald W Kufe, Daniel D Von Hoff, Takumi Kawabe
The anti-cancer agent CBP501 binds to calmodulin (CaM). Recent studies showed that migration and metastasis are inhibited by several CaM antagonists. However, there is no available evidence that CBP501 has similar effects. Here we found that CBP501 inhibits migration of non-small cell lung cancer (NSCLC) cells in vitro, even in the presence of migration inducing factors such as WNT, IL-6, and several growth factors. CBP501 also inhibited epidermal growth factor (EGF) enhanced invasion and the epithelial-to-mesenchymal transition (EMT), and this inhibition was accompanied by (i) suppression of Akt and ERK1/2 phosphorylation, and (ii) suppression of expression of transcription factor Zeb1 and the mesenchymal marker Vimentin...
June 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28642192/applications-of-3d-orbital-computer-assisted-surgery-cas
#12
Paolo Scolozzi
INTRODUCTION: The purpose of the present report is to describe the indications for use of 3D orbital computer-assisted surgery (CAS). PATIENTS AND METHODS: We analyzed the clinical and radiological data of all patients with orbital deformities treated using intra-operative navigation and CAD/CAM techniques at the Hôpitaux Universitaires de Genève, Switzerland, between 2009 and 2016. We recorded age and gender, orbital deformity, technical and surgical procedure and postoperative complications...
June 19, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28641489/screening-of-several-biological-activities-induced-by-different-sesquiterpene-lactones-isolated-from-centaurea-behen-l-and-rhaponticum-repens-l-hidalgo
#13
Abolfazl Shakeri, Elaheh Amini, Javad Asili, Milena Masullo, Sonia Piacente, Mehrdad Iranshahi
This study aims to evaluate the in vitro cytotoxic, in vitro and in ovo anti-angiogenic effects and antimicrobial activity of sesquiterpene lactones (SLs) from two plants Centaurea behen and Rhaponticum repens (L.). Five SLs, including cynaropicrin (1), 4β,15-dehydro-3-dehydrosolstitialin A (2), aguerin B (3), janerin (4), cebellin E (5), and a flavone hispidulin (6) were isolated from C. behen (compounds 1-3) and R. repens (compounds 4-6). Cynaropicrin (1) and aguerin B (3) were characterised by strong cytotoxic activities against A2780 cells with IC50 values of 1...
June 23, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28641281/complementary-and-alternative-medicine-a-clinical-study-in-1-016-hematology-oncology-patients
#14
Marina Hierl, Jochen Pfirstinger, Reinhard Andreesen, Ernst Holler, Stephanie Mayer, Daniel Wolff, Martin Vogelhuber
INTRODUCTION: Surveys state a widespread use of complementary and alternative medicine (CAM) in patients with malignant diseases. CAM methods might potentially interfere with the metabolization of tumor-specific therapy. However, there is little communication about CAM use in hematology/oncology patients between patients, CAM providers, and oncologists. PATIENTS AND METHODS: A self-administered questionnaire was handed out to all patients attending to the hematology/oncology outpatient clinic of Regensburg University Hospital...
June 23, 2017: Oncology
https://www.readbyqxmd.com/read/28640223/non-targeted-metabolomics-analysis-of-the-effects-of-tyrosine-kinase-inhibitors-sunitinib-and-erlotinib-on-heart-muscle-liver-and-serum-metabolism-in-vivo
#15
Brian C Jensen, Traci L Parry, Wei Huang, Amro Ilaiwy, James R Bain, Michael J Muehlbauer, Sara K O'Neal, Cam Patterson, Gary L Johnson, Monte S Willis
Background: More than 90 tyrosine kinases have been implicated in the pathogenesis of malignant transformation and tumor angiogenesis. Tyrosine kinase inhibitors (TKIs) have emerged as effective therapies in treating cancer by exploiting this kinase dependency. The TKI erlotinib targets the epidermal growth factor receptor (EGFR), whereas sunitinib targets primarily vascular endothelial growth factor receptor (VEGFR) and platelet-derived growth factor receptor (PDGFR).TKIs that impact the function of non-malignant cells and have on- and off-target toxicities, including cardiotoxicities...
June 22, 2017: Metabolites
https://www.readbyqxmd.com/read/28639424/parental-attitudes-toward-pediatric-use-of-complementary-alternative-medicine-in-turkey
#16
Fadime Ustuner Top, Dilek Konuk Sener, Sengul Cangur
PURPOSE: This study was conducted to determine the pediatric usage of complementary/alternative medicine (CAM) by parents in Turkey, the incidence of using these methods, and the factors affecting their use. DESIGN AND METHODS: The sectional and relational design of the study included a sample of 497 parents who took children for treatment at the Maternity and Children's Hospital in Giresun, Turkey. Data for the study were collected via the Personal Information Form and the Evaluation Form for Complementary/Alternative Treatment Use...
June 21, 2017: Journal for Specialists in Pediatric Nursing: JSPN
https://www.readbyqxmd.com/read/28638554/effect-of-professional-dental-prophylaxis-on-the-surface-gloss-and-roughness-of-cad-cam-restorative-materials
#17
Toshiko Sugiyama, Atsushi Kameyama, Tomoka Enokuchi, Akiko Haruyama, Aoi Chiba, Setsuko Sugiyama, Makoto Hosaka, Toshiyuki Takahashi
BACKGROUND: This study aimed to evaluate the effect of dental prophylaxis on the surface gloss and roughness of different indirect restorative materials for computer-aided design/computer-aided manufacturing (CAD/CAM): two types of CAD/CAM composite resin blocks (Shofu Block HC and Estelite Block) and two types of CAD/CAM ceramic blocks (IPS Empress CAD and Celtra DUO). MATERIAL AND METHODS: After polishing the CAD/CAM blocks and applying prophylaxis pastes, professional dental prophylaxis was performed using four different experimental protocols (n = 5 each): mechanical cleaning with Merssage Regular for 10 s four times (Group 1); four cycles of mechanical cleaning with Merssage Regular for 10 s and Merssage Fine for 10 s (Group 2); four cycles of mechanical cleaning with Merssage Regular for 10 s and Merssage Fine for 30 s (Group 3); and mechanical cleaning with Merssage Fine for 10 s four times (Group 4)...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28637981/effects-of-vascular-endothelial-growth-factor-on-osteoblasts-around-dental-implants-in-vitro-and-in-vivo
#18
Mengkai Guang, Bo Huang, Yang Yao, Liang Zhang, Bo Yang, Ping Gong
Vasculogenesis is a pivotal procedure during dental implant osseointegration and bone repair process. Vascular endothelial growth factor (VEGF), regarded as one of the most important vasculogenesis factor, also plays a central role in bone repair, but its role around dental implants is still unknown. In the present study, rat primary osteoblasts seeded on titanium discs were tested using proliferation, enzyme-linked immunosorbent assay, Real-time PCR, and alkaline phosphatase (ALP) expression. Chicken embryo chorioallantoic membrane (CAM) was used to test the vasculogenesis property...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28637808/dmt-efficiently-inhibits-hepatic-gluconeogenesis-involving-g%C3%AE-q-signaling-pathway
#19
Ting-Ting Zhou, Fei Ma, Xiao-Fan Shi, Xin Xu, Te Du, Xiao-Dan Guo, Gai-Hong Wang, Liang Yu, Vatcharin Rukachaisirikul, Li-Hong Hu, Jing Chen, Xu Shen
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease with complicated pathogenesis, and targeting gluconeogenesis inhibition is a promising strategy for anti-diabetic drug discovery. G protein-coupled receptors (GPCRs) are classified as distinct families by heterotrimeric G proteins, primarily including Gαs, Gαi and Gαq. Gαs-coupled GPCRs function potently in the regulation of hepatic gluconeogenesis through activating cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA) pathway, and Gαi-coupled GPCRs exhibit inhibitory effect on adenylyl cyclase and reduce intracellular cAMP level...
June 21, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28637792/reactive-sulfur-species-inactivate-ca-2-calmodulin-dependent-protein-kinase-iv-via-s-polysulfidation-of-its-active-site-cysteine-residue
#20
Tsuyoshi Takata, Hideshi Ihara, Naoya Hatano, Yukihiro Tsuchiya, Takaaki Akaike, Yasuo Watanabe
Reactive sulfur species (RSS) modulate protein functions via S- polysulfidation of reactive Cys residues. Here, we report that Ca(2+)/calmodulin (CaM)-dependent protein kinase IV (CaMKIV) was reversibly inactivated by RSS via polysulfidation of the active site Cys residue. CaMKIV is phosphorylated at Thr(196) by its upstream CaMK kinase (CaMKK), resulting in the induction of its full activity. In vitro incubation of CaMKIV with the exogenous RSS donors Na2Sn ( n = 2-4) resulted in dose-dependent inhibition of the CaMKK-induced phospho-Thr(196) and consequent inactivation of the enzyme activity...
June 21, 2017: Biochemical Journal
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