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https://www.readbyqxmd.com/read/28932142/color-stability-and-marginal-integrity-of-interim-crowns-an-in-vitro-study
#1
Marwa I Elagra, Mohammad R Rayyan, Maisam M Alhomaidhi, Areej A Alanaziy, Mona O Alnefaie
OBJECTIVE: Many commercial dental materials are used to fabricate interim restorations. This study aimed to compare the color stability and the marginal integrity of four different interim crown materials. MATERIALS AND METHODS: An ivorine right maxillary central incisor was prepared for a full coverage all-ceramic restoration. A total of 36 specimens in the form of crowns were fabricated on the master die using four different materials (n = 9); Polymethyl methacrylate (PMMA) resin (TrimPLUS), PMMA computer-aided design, and computer-aided manufacturing (CAD-CAM) blocks (Ceramill TEMP), cold cure bis-acryl resin (Success CD), and bis-acryl resin dual-cure composite (TempSpan)...
July 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28922955/comparison-of-zfns-versus-crispr-specific-nucleases-for-genome-edition-of-the-wiskott-aldrich-syndrome-locus
#2
Alejandra Gutierrez-Guerrero, Sabina Sanchez-Hernandez, Giuseppe Galvani, Javier Pinedo-Gomez, Almudena Sanchez-Gilabert, Rocio Martin-Guerra, Marien Cobo, Philip Gregory, Michael Holmes, Karim Benabdellah, Francisco Martin
Primary immunodeficiencies (PID), including Wiskott-Aldrich syndrome (WAS), are a main target for genome editing (GE) strategies using specific nucleases (SNs) since a small number of corrected hematopoietic stem cells (HSCs) could cure patients. In this work, we have designed different WAS gene-specific CRISPR/Cas9 systems and compared their efficiency and specificity with homodimeric and heterodimeric WAS-specific Zinc Finger Nucleases (ZFNs) using K562 cells as a cellular model and plasmid nucleofection or integrative-deficient Lentiviral Vectors (IDLVs) for delivery...
September 19, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28914250/a-comparative-evaluation-of-retention-of-pit-and-fissure-sealant-bonded-using-sixth-seventh-and-eighth-generation-adhesives-an-in-vivo-study
#3
Mitakshra Nirwan, Anant Gopal Nigam, Nikhil Marwah, Ullal Anand Nayak, Aayushi Bansal, Manvendra Singh Gahlot
INTRODUCTION: Dental caries is one of the most common preventable childhood infections. a number of measures are available to prevent occlusal caries; pit and fissure sealants are one of the various methods currently available to cost effectively reduce dental caries. AIM: To evaluate the retention of pit and fissure sealant bonded using sixth (Adper promt), seventh (Optibond) and eighth (Futurabond Dual Cure) generations of adhesives. SETTINGS AND DESIGN: A total of 37 healthy children who fulfilled the inclusion were randomly selected...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28893281/rna-flow-cytometric-fish-for-investigations-into-hiv-immunology-vaccination-and-cure-strategies
#4
REVIEW
Amy E Baxter, Julia Niessl, Antigoni Morou, Daniel E Kaufmann
Despite the tremendous success of anti-retroviral therapy (ART) no current treatment can eradicate latent HIV reservoirs from HIV-infected individuals or generate, effective HIV-specific immunity. Technological limitations have hampered the identification and characterization of both HIV-infected cells and HIV-specific responses in clinical samples directly ex vivo. RNA-flow cytometric fluorescence in situ hybridisation (RNA Flow-FISH) is a powerful technique, which enables detection of mRNAs in conjunction with proteins at a single-cell level...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28886770/dental-cements-for-luting-and-bonding-restorations-self-adhesive-resin-cements
#5
REVIEW
Adriana P Manso, Ricardo M Carvalho
Self-adhesive resin cements combine easy application of conventional luting materials with improved mechanical properties and bonding capability of resin cements. The presence of functional acidic monomers, dual cure setting mechanism, and fillers capable of neutralizing the initial low pH of the cement are essential elements of the material and should be understood when selecting the ideal luting material for each clinical situation. This article addresses the most relevant aspects of self-adhesive resin cements and their potential impact on clinical performance...
October 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28857711/wear-evaluation-of-prosthetic-materials-opposing-themselves
#6
C D'Arcangelo, L Vanini, G D Rondoni, M Vadini, F De Angelis
The purpose of the present in vitro study was to compare the two-body wear resistance of a type 3 gold alloy (Aurocast8), two lithium disilicate glass ceramics (IPS e.max CAD and IPS e.max Press), a heat-pressed feldspathic porcelain (Cerabien ZR Press), an yttria-stabilized tetragonal zirconia polycrystal ceramic (Katana Zirconia ML), and three heat-cured composite resins (Ceram.X Universal, Enamel Plus Function, and Enamel Plus HRi) opposing antagonistic cusps made out of the same restorative materials. Ten 6-mm-thick samples and 10 cusp-shaped abraders were manufactured with each test material (n=10) according to standard laboratory procedures...
August 31, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28846076/a-new-combination-therapy-for-asthma-using-dual-function-dexamethsone-conjugated-polyethylenimine-and-vitamin-d-binding-protein-sirna
#7
M Choi, J Gu, M Lee, T Rhim
Asthma is a multifactorial disease that is influenced by the interaction of genetic and environmental factors. Due to its complex nature, there is no cure for asthma currently. Instead, reliever and controller medications are used to treat asthma. Unfortunately, conventional treatments do not work in some severe cases of asthma. In addition, there may be adverse, systemic effects of long-term treatment with high-dose inhaled corticosteroids as a controller medication. Therefore, we attempted to develop a novel combination therapy for asthma...
August 28, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28841393/evaluation-of-fracture-resistance-of-varying-thicknesses-of-zirconia-around-implant-abutment-cylinders
#8
Cheryl Jonghee Park, Jin-Ho Phark, Winston Wanli Chee
Zirconia is becoming increasingly used as a restorative material for implant-supported restorations, however information is lacking with respect to the minimum thickness of zirconia surrounding the implant components. The purpose of this study is to evaluate the resistance to fracture of different thicknesses of zirconia luted to implant components. Thirty cylinders of zirconia (Prettau, Zirkonzahn) with 13 mm height, designed with indented occlusal surface for loading, and varying wall thicknesses (0.5 mm, 1 mm, 1...
August 25, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28840758/trust-at-stake-is-the-dual-mission-of-the-u-s-alzheimer-s-association-out-of-balance
#9
Eilon Caspi
The official vision of the U.S. Alzheimer's Association is "A world without Alzheimer's disease." The "dual mission" of the organization is "to eliminate Alzheimer's disease through the advancement of research and to enhance care and support for individuals, their families and caregivers." Using numerous reports from leading researchers and practitioners, a case is made by which the "dual mission" is grossly unbalanced with predominant focus on biomedical research aimed at curing the disease compared to research and practices focused on the psycho-social impacts of and adaptations to living with it...
January 1, 2017: Dementia
https://www.readbyqxmd.com/read/28836993/the-penicillin-for-the-emergency-department-outpatient-treatment-of-cellulitis-pedocell-trial-update-to-the-study-protocol-and-detailed-statistical-analysis-plan-sap
#10
Fiona Boland, Michael Quirke, Brenda Gannon, Sinead Plunkett, John Hayden, John McCourt, Ronan O'Sullivan, Joseph Eustace, Conor Deasy, Abel Wakai
BACKGROUND: Cellulitis is a painful, potentially serious, infectious process of the dermal and subdermal tissues and represents a significant disease burden. The statistical analysis plan (SAP) for the Penicillin for the Emergency Department Outpatient treatment of CELLulitis (PEDOCELL) trial is described here. The PEDOCELL trial is a multicentre, randomised, parallel-arm, double-blinded, non-inferiority clinical trial comparing the efficacy of flucloxacillin (monotherapy) with combination flucloxacillin/phenoxymethylpenicillin (dual therapy) for the outpatient treatment of cellulitis in the emergency department (ED) setting...
August 24, 2017: Trials
https://www.readbyqxmd.com/read/28829931/relationship-between-simulated-gap-wear-and-generalized-wear-of-resin-luting-cements
#11
A Tsujimoto, W W Barkmeier, T Takamizawa, M A Latta, M Miayazaki
OBJECTIVE: The relationship between the simulated gap wear and generalized wear of resin luting cements was investigated. METHODS: Five resin luting cements, G-Cem LinkForce (GL), Multilink Automix (MA), NX3 Nexus, Panavia V5 (PV), and RelyX Ultimate were evaluated and subsequently subjected to a wear challenge in a Leinfelder-Suzuki (Alabama) wear simulation device. Half of the specimens from each resin luting cement were photo-cured for 40 seconds and the other half were not photo-cured...
September 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28819572/a-cad-cam-zirconium-bar-as-a-bonded-mandibular-fixed-retainer-a-novel-approach-with-two-year-follow-up
#12
Maen Zreaqat, Rozita Hassan, Abdul Fatah Hanoun
Stainless steel alloys containing 8% to 12% nickel and 17% to 22% chromium are generally used in orthodontic appliances. A major concern has been the performance of alloys in the environment in which they are intended to function in the oral cavity. Biodegradation and metal release increase the risk of hypersensitivity and cytotoxicity. This case report describes for the first time a CAD/CAM zirconium bar as a bonded mandibular fixed retainer with 2-year follow-up in a patient who is subjected to long-term treatment with fixed orthodontic appliance and suspected to have metal hypersensitivity as shown by the considerable increase of nickel and chromium concentrations in a sample of patient's unstimulated saliva...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28816187/comparison-of-film-thickness-of-two-commercial-brands-of-glass-lonomer-cement-and-one-dual-cured-composite-an-in-vitro-study
#13
Rajat R Khajuria, Rishav Singh, Pranamee Barua, Nausheen Hajira, Naveen Gupta, Rohit R Thakkar
AIM: The present study is undertaken to examine the film thickness of three most commonly used luting cements and to determine their usage as a luting agent. MATERIALS AND METHODS: This study was carried out strictly according to the guidelines of American Dental Association (ADS) specification no. 8. Two glass slabs of 5 cm in length and 2 cm in width were used. One glass slab was kept over the other glass slab and the space between the two glass slabs was measured using metallurgical microscope at the power of 10*...
August 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28812982/quantitative-criteria-to-benchmark-new-and-existing-bio-inks-for-cell-compatibility
#14
Karen Dubbin, Anthony Tabet, Sarah Heilshorn
Recent advancements in 3D bioprinting have led to the fabrication of more complex, more precise, and larger printed tissue constructs. As the field continues to advance, it is critical to develop quantitative benchmarks to compare different bio-inks for key cell-biomaterial interactions, including (1) cell sedimentation within the ink cartridge, (2) cell viability during extrusion, and (3) cell viability after ink curing. Here we develop three simple protocols for quantitative analysis of bio-ink performance...
August 16, 2017: Biofabrication
https://www.readbyqxmd.com/read/28810147/macrophage-polarization-contributes-to-glioblastoma-eradication-by-combination-immunovirotherapy-and-immune-checkpoint-blockade
#15
Dipongkor Saha, Robert L Martuza, Samuel D Rabkin
Glioblastoma is an immunosuppressive, fatal brain cancer that contains glioblastoma stem-like cells (GSCs). Oncolytic herpes simplex virus (oHSV) selectively replicates in cancer cells while inducing anti-tumor immunity. oHSV G47Δ expressing murine IL-12 (G47Δ-mIL12), antibodies to immune checkpoints (CTLA-4, PD-1, PD-L1), or dual combinations modestly extended survival of a mouse glioma model. However, the triple combination of anti-CTLA-4, anti-PD-1, and G47Δ-mIL12 cured most mice in two glioma models...
August 14, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28807915/both-14-day-hybrid-and-bismuth-quadruple-therapies-cure-most-patients-with-helicobacter-pylori-infection-in-populations-with-moderate-antibiotic-resistance-a-randomized-controlled-trial
#16
Feng-Woei Tsay, Deng-Chyang Wu, Hsien-Chung Yu, Sung-Shuo Kao, Kung-Hung Lin, Jin-Shiung Cheng, Huay-Min Wang, Wen-Chi Chen, Wei-Chih Sun, Kuo-Wang Tsai, Ping-I Hsu
BACKGROUND & AIM: Hybrid therapy is a novel two-step treatment achieving a high eradication rate for H. pylori infection. Currently, whether this new therapy achieves a higher eradication rate than bismuth quadruple therapy remains an unanswered question. The aim of this prospective, randomized, comparive study was to investigate the efficacies of 14-day hybrid therapy and bismuth quadruple therapy in the treatment of H. pylori infection.METHODS: From July 2013 to June 2015, eligible H. pylori-infected subjects were randomly assigned to receive either 14-day bismuth quadruple therapy (pantoprazole, bismuth subcitrate, tetracycline, and metronidazole for 14 days) or 14-day hybrid therapy (a 7-day dual therapy with pantoprazole plus amoxicillin, followed by a 7-day quadraple therapy with pantoprazole plus amoxicillin, clarithromycin and metronidazole)...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28794022/potent-in-vivo-nk-cell-mediated-elimination-of-hiv-1-infected-cells-mobilized-by-a-gp120-bispecific-and-hexavalent-broadly-neutralizing-fusion-protein
#17
Ariola Bardhi, Yanling Wu, Weizao Chen, Zhongyu Zhu, Jian Hua Zheng, Hing Wong, Emily Jeng, Jennifer Jones, Christina Ochsenbauer, John C Kappes, Dimiter S Dimitrov, Tianlei Ying, Harris Goldstein
Antibodies bound to HIV-1 envelope protein expressed by infected cells mobilize antibody dependent cellular cytotoxicity (ADCC) to eliminate the HIV-1-infected cells and thereby suppress HIV-1 infection and delay disease progression. Studies treating HIV-1-infected individuals with latency reactivation agents to reduce their latent HIV-1 reservoirs indicated that their HIV-1-specific immune responses were insufficient to effectively eliminate the reactivated latent HIV-1-infected T cells. Mobilization of ADCC may facilitate elimination of reactivated latent HIV-1-infected cells to deplete the HIV-1 reservoir and contribute to functional HIV-1 cure...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28774330/the-paradigm-of-tumor-shrinkage-and-rapid-liver-remnant-hypertrophy-for-conversion-of-initially-unresectable-colorectal-liver-metastasis-a-case-report-and-literature-review
#18
Nan Xiao, Kailin Yu, Shaojun Yu, Jianjun Wu, Jian Wang, Siyang Shan, Shuchun Zheng, Liuhong Wang, Jianwei Wang, Shuyou Peng
BACKGROUND: For colorectal liver metastasis (CRLM) patients, hepatic resection is currently the sole cure offering the chance of long-term survival. Tumor shrinkage and planned liver remnant hypertrophy are the two key strategies for conversion of initially unresectable CRLM. First conducted in 2012, associated liver partition and portal vein ligation for staged hepatectomy (ALPPS) allows rapid liver growth. As a means to induce hypertrophy, portal vein embolization (PVE) has been widely applied before extending hepatectomy...
August 3, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28772489/influence-of-curing-mode-on-the-surface-energy-and-sorption-solubility-of-dental-self-adhesive-resin-cements
#19
Hyun-Jin Kim, Rafat Bagheri, Young Kyung Kim, Jun Sik Son, Tae-Yub Kwon
This study investigated the influence of curing mode (dual- or self-cure) on the surface energy and sorption/solubility of four self-adhesive resin cements (SARCs) and one conventional resin cement. The degree of conversion (DC) and surface energy parameters including degree of hydrophilicity (DH) were determined using Fourier transform infrared spectroscopy and contact angle measurements, respectively (n = 5). Sorption and solubility were assessed by mass gain or loss after storage in distilled water or lactic acid for 60 days (n = 5)...
February 4, 2017: Materials
https://www.readbyqxmd.com/read/28769106/lipoxin-a4-and-its-analog-suppress-inflammation-by-modulating-hmgb1-translocation-and-expression-in-psoriasis
#20
Xinxin Liu, Xin Wang, Xiaoru Duan, Devesh Poorun, Juntao Xu, Song Zhang, Lu Gan, Mengwen He, Ke Zhu, Zhangyin Ming, Feng Hu, Hongxiang Chen
Psoriasis is a chronic inflammatory skin disease that affects 2-3% of the global population, and there is still no known possibility of a cure. Lipoxin A4 (LXA4), an endogenous lipoxygenase-derived eicosanoid mediator, has potent dual pro-resolving and anti-inflammatory properties. BML-111 (5(S)-6(R)-7-trihydroxyheptanoic acid methyl ester), a lipoxin receptor agonist, has been previously confirmed to be equivalent to LXA4 in the anti-inflammatory processes. High mobility group box 1 (HMGB1) serves as an inflammatory cytokine when secreted extracellularly in psoriatic lesions and is involved in the development of psoriasis...
August 2, 2017: Scientific Reports
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