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https://www.readbyqxmd.com/read/28527291/haplotypes-in-ccr5-ccr2-ccl3-and-ccl5-are-associated-with-natural-resistance-to-hiv-1-infection-in-a-colombian-cohort
#1
Jorge A Vega, Simón Villegas-Ospina, Wbeimar Aguilar-Jiménez, María T Rugeles, Gabriel Bedoya, Wildeman Zapata
INTRODUCTION: Variants in genes encoding for HIV-1 co-receptors and their natural ligands have been individually associated to natural resistance to HIV-1 infection. However, the simultaneous presence of these variants has been poorly studied. OBJECTIVE: To evaluate the association of single and multilocus haplotypes in genes coding for the viral co-receptors CCR5 and CCR2, and their ligands CCL3 and CCL5, with resistance or susceptibility to HIV-1 infection. MATERIALS AND METHODS: Nine variants in CCR5-CCR2, two SNPs in CCL3 and two in CCL5 were genotyped by PCR-RFLP in 35 seropositive (cases) and 49 HIV-1-exposed seronegative Colombian individuals (controls)...
June 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527193/comparison-of-digital-intraoral-scanners-by-single-image-capture-system-and-full-color-movie-system
#2
Meguru Yamamoto, Yu Kataoka, Atsufumi Manabe
BACKGROUND: The use of dental computer-aided design/computer-aided manufacturing (CAD/CAM) restoration is rapidly increasing. OBJECTIVE: This study was performed to evaluate the marginal and internal cement thickness and the adhesive gap of internal cavities comprising CAD/CAM materials using two digital impression acquisition methods and micro-computed tomography. METHODS: Images obtained by a single-image acquisition system (Bluecam Ver...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28527036/osteogenesis-ability-of-cad-cam-porous-zirconia-scaffolds-enriched-with-nano-hydroxyapatite-particles
#3
Moustafa N Aboushelib, Rehab Shawky
BACKGROUND: The aim of this study was to evaluate osteogenesis ability of CAD/CAM porous zirconia scaffolds enriched with hydroxy apatite used to augment large boney defects in a dog model. METHODS: Surgical defects were made bilaterally on the lower jaw of 12 Beagle dogs. Cone beam CT images were used to create three dimensional images of the healed defects. Porous zirconia scaffolds were fabricated by milling custom made CAD/CAM blocks into the desired shape. After sintering, the pores of half of the scaffolds were filled with a nano-hydroxy apatite (HA) powder while the other half served as control...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28526944/ventilator-data-extraction-with-a-video-display-image-capture-and-processing-system
#4
David B Wax, Bryan Hill, Matthew A Levin
Medical hardware and software device interoperability standards are not uniform. The result of this lack of standardization is that information available on clinical devices may not be readily or freely available for import into other systems for research, decision support, or other purposes. We developed a novel system to import discrete data from an anesthesia machine ventilator by capturing images of the graphical display screen and using image processing to extract the data with off-the-shelf hardware and open-source software...
June 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28526689/long-non-coding-rna-neat1-promotes-hepatocellular-carcinoma-cell-proliferation-through-the-regulation-of-mir-129-5p-vcp-i%C3%AE%C2%BAb
#5
Luo Fang, Jiao Sun, Zongfu Pan, Yu Song, Like Zhong, Yiwen Zhang, Yujia Liu, Xiaowei Zheng, Ping Huang
BACKGROUND: Long non-coding RNA (lncRNA) nuclear-enriched abundant transcript 1 (NEAT1) plays an important role in the pathogenesis and development of several types of cancer. However, the functional mechanism of NEAT1 in hepatocellular carcinoma (HCC) remains unclear. METHODS: The NEAT1 and miR-129-5p expression in HCC tissues and cell lines were quantified by means of qPCR. The effects of NEAT1 expression inhibition or up-regulation in HCC cell lines were analyzed in terms of cell viability and apoptosis...
May 19, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28526674/development-of-a-web-based-health-care-intervention-for-patients-with-heart-disease-lessons-learned-from-a-participatory-design-study
#6
Birgitte Noergaard, Marianne Sandvei, Nina Rottmann, Helle Johannessen, Uffe Wiil, Thomas Schmidt, Susanne S Pedersen
BACKGROUND: The use of telemedicine technologies in health care has increased substantially, together with a growing interest in participatory design methods when developing telemedicine approaches. OBJECTIVE: We present lessons learned from a case study involving patients with heart disease and health care professionals in the development of a personalized Web-based health care intervention. METHODS: We used a participatory design approach inspired by the method for feasibility studies in software development...
May 17, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28526630/what-is-the-impact-of-bariatric-surgery-on-erectile-function-a%C3%A2-systematic-review-and-meta-analysis
#7
REVIEW
Felipe Placco Araujo Glina, Júlia Walter de Freitas Barboza, Victor Moises Nunes, Sidney Glina, Wanderley Marques Bernardo
INTRODUCTION: Obesity is a worldwide public health issue that has severe psychological and social implications. Erectile dysfunction also is a prevalent clinical situation, and obesity is one of the primary risk factors for its development. AIM: To determine whether bariatric surgery can lessen erectile dysfunction in obese men because of evidence showing that weight loss in obese men contributes to decreasing erectile dysfunction and bariatric surgery contributes to significant weight loss...
May 16, 2017: Sexual Medicine Reviews
https://www.readbyqxmd.com/read/28526444/the-development-of-a-novel-shade-selection-program-for-fixed-shade-translucent-dental-materials
#8
Melody N Carney, William M Johnston
OBJECTIVES: The objective of this study was to develop a shade selection program that predicts the shade choice with the smallest CIEDE2000 color difference for dental composite resin restorations when given a backing and target shade. By utilizing previously generated regression models, a database of spectral reflectance information, and principles of Kubelka-Munk layering, a highly accurate shade selection program was designed. METHODS: Using SAS 9.3 Statistical Analysis Software, a shade selection program was developed that incorporated Kubelka-Munk layering data of Herculite Ultra and Estelite Omega composite resins from a characterized database of absorption and scattering information...
May 16, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28526270/risk-factors-for-urinary-tract-infections-in-geriatric-hospitals
#9
Raphaële Girard, Sylvain Gaujard, Véronique Pergay, Pascal Pornon, Géraldine Martin Gaujard, Laurent Bourguignon
BACKGROUND: Urinary tract infection (UTI) is the most frequent nosocomial infection in geriatric units. An understanding of risk factors for infection may help identify prevention strategies. AIM: Identification of the risk factors for UTI in elderly patients. METHOD: Retrospective analysis of 3 prospective cohorts. All hospitalized patients present in, or admitted to, a geriatric unit from June 1 to June 28, for the years 2009, 2012, and 2015 were included and followed until discharge or until June 30 of the year concerned...
May 16, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28526078/the-efficacy-of-chlorhexidine-gel-in-the-prevention-of-alveolar-osteitis-after-mandibular-third-molar-extraction-a-systematic-review-and-meta-analysis
#10
Amare Teshome
BACKGROUND: Alveolar osteitis is a very painful and distressing condition for a patient who has recently undergone a tooth extraction and has led dental professionals to search for preventive measures. The aim of this meta-analysis to determine the effect of chlorhexidine (CHX) gel on the incidence of alveolar osteitis after mandibular third molar extraction. METHODS: Studies were searched for on electronic search engines using Medline (PubMed), Cochrane central, Scopus and advanced Google Scholar from May 2015 to December 2015...
May 19, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28526045/standardization-of-platelet-releasate-products-for-clinical-applications-in-cell-therapy-a-mathematical-approach
#11
Francesco Agostini, Jerry Polesel, Monica Battiston, Elisabetta Lombardi, Stefania Zanolin, Alessandro Da Ponte, Giuseppe Astori, Cristina Durante, Mario Mazzucato
BACKGROUND: Standardized animal-free components are required for manufacturing cell-based medicinal products. Human platelet concentrates are sources of growth factors for cell expansion but such products are characterized by undesired variability. Pooling together single-donor products improves consistency, but the minimal pool sample size was never determined. METHODS: Supernatant rich in growth factors (SRGF) derived from n = 44 single-donor platelet-apheresis was obtained by CaCl2 addition...
May 19, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28526006/cardiometabolic-profile-of-obese-children-in-a-sub-saharan-african-setting-a-cross-sectional-study
#12
Eunice Chedjou-Nono, Suzanne Sap, Simeon-Pierre Choukem, Issa Ngosso Tetanye, Daniel Nebongo, Olivier Koki Ndombo
BACKGROUND: Cardiovascular and metabolic consequences of obesity in children, unlike adults, are still not well understood nor have they been subject to extensive research in Africa. We aimed to identify the cardio-metabolic complications associated with childhood obesity at the early phase of the management of obese children in a reference center in Cameroon. METHODS: In this cross-sectional study conducted from November 2013 to September 2014 and based on World Health Organization (WHO) classification of Obesity (BMI > 3SD under 5 years and BMI > 2SD from 5 and above), we included children aged 3 to 17 years who were being followed up for obesity at the pediatric endocrinology unit of the Mother and Child Center of the Chantal BIYA Foundation in Yaounde, Cameroon...
May 19, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28525968/survivalgwas_sv-software-for-the-analysis-of-genome-wide-association-studies-of-imputed-genotypes-with-time-to-event-outcomes
#13
Hamzah Syed, Andrea L Jorgensen, Andrew P Morris
BACKGROUND: Analysis of genome-wide association studies (GWAS) with "time to event" outcomes have become increasingly popular, predominantly in the context of pharmacogenetics, where the survival endpoint could be death, disease remission or the occurrence of an adverse drug reaction. However, methodology and software that can efficiently handle the scale and complexity of genetic data from GWAS with time to event outcomes has not been extensively developed. RESULTS: SurvivalGWAS_SV is an easy to use software implemented using C# and run on Linux, Mac OS X & Windows operating systems...
May 19, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28525668/comparison-of-hand-and-semiautomatic-tracing-methods-for-creating-maxillofacial-artificial-organs-using-sequences-of-computed-tomography-ct-and-cone-beam-computed-tomography-cbct-images
#14
Bence T Szabo, Seçil Aksoy, Gabor Repassy, Krisztian Csomo, Csaba Dobo-Nagy, Kaan Orhan
INTRODUCTION: The aim of this study was to compare the paranasal sinus volumes obtained by manual and semiautomatic imaging software programs using both CT and CBCT imaging. METHODS: 121 computed tomography (CT) and 119 cone beam computed tomography (CBCT) examinations were selected from the databases of the authors' institutes. The Digital Imaging and Communications in Medicine (DICOM) images were imported into 3-dimensonal imaging software, in which hand mode and semiautomatic tracing methods were used to measure the volumes of both maxillary sinuses and the sphenoid sinus...
May 17, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28525659/genetic-variability-in-jatropha-curcas-l-from-diallel-crossing
#15
D O Ribeiro, R Silva-Mann, S V Alvares-Carvalho, E M S Souza, M C Vasconcelos, A F Blank
Physic nut (Jatropha curcas L.) presents high oilseed yield and low production cost. However, technical-scientific knowledge on this crop is still limited. This study aimed to evaluate and estimate the genetic variability of hybrids obtained from dialell crossing. Genetic variability was carried out using ISSR molecular markers. For genetic variability, nine primers were used, and six were selected with 80.7% polymorphism. Genetic similarity was obtained using the NTSYS pc. 2.1 software, and cluster analysis was obtained by the UPGMA method...
May 18, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28525607/rna-moip-prediction-of-rna-secondary-structure-and-local-3d-motifs-from-sequence-data
#16
Jason Yao, Vladimir Reinharz, François Major, Jérôme Waldisphül
RNA structures are hierarchically organized. The secondary structure is articulated around sophisticated local three-dimensional (3D) motifs shaping the full 3D architecture of the molecule. Recent contributions have identified and organized recurrent local 3D motifs, but applications of this knowledge for predictive purposes is still in its infancy. We recently developed a computational framework, named RNA-MoIP, to reconcile RNA secondary structure and local 3D motif information available in databases. In this paper, we introduce a web service using our software for predicting RNA hybrid 2D-3D structures from sequence data only...
May 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28525568/scenery-a-web-application-for-causal-network-reconstruction-from-cytometry-data
#17
Georgios Papoutsoglou, Giorgos Athineou, Vincenzo Lagani, Iordanis Xanthopoulos, Angelika Schmidt, Szabolcs Éliás, Jesper Tegnér, Ioannis Tsamardinos
Flow and mass cytometry technologies can probe proteins as biological markers in thousands of individual cells simultaneously, providing unprecedented opportunities for reconstructing networks of protein interactions through machine learning algorithms. The network reconstruction (NR) problem has been well-studied by the machine learning community. However, the potentials of available methods remain largely unknown to the cytometry community, mainly due to their intrinsic complexity and the lack of comprehensive, powerful and easy-to-use NR software implementations specific for cytometry data...
May 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28525538/chimeraviz-a-tool-for-visualizing-chimeric-rna
#18
Stian Lågstad, Sen Zhao, Andreas M Hoff, Bjarne Johannessen, Ole Christian Lingjærde, Rolf I Skotheim
Summary: Advances in high-throughput RNA sequencing have enabled more efficient detection of fusion transcripts, but the technology and associated software used for fusion detection from sequencing data often yield a high false discovery rate. Good prioritization of the results is important, and this can be helped by a visualization framework that automatically integrates RNA data with known genomic features. Here we present chimeraviz , a Bioconductor package that automates the creation of chimeric RNA visualizations...
May 19, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28525494/optimal-entry-point-and-trajectory-for-anterior-c1-lateral-mass-screw
#19
Yong Hu, Wei-Xin Dong, William Ryan Spiker, Zhen-Shan Yuan, Xiao-Yang Sun, Jiao Zhang, Hui Xie, Todd J Albert
STUDY DESIGN: A radiographic analysis of the anatomy of the C1 lateral mass using computed tomography (CT) scans and Mimics software. OBJECTIVE: To define the anatomy of the C1 lateral mass and make recommendations for optimal entry point and trajectory for anterior C1 lateral mass screws. SUMMARY OF BACKGROUND DATA: Although various posterior insertion angles and entry points for screw insertion have been proposed for posterior C1 lateral mass screws, no large series have been performed to assess the ideal entry point and optimal trajectory for anterior C1 lateral mass screw placement...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28525369/association-between-serum-resistin-concentration-and-hypertension-a-systematic-review-and-meta-analysis
#20
Yuxiang Zhang, Yixing Li, Lin Yu, Lei Zhou
OBJECTIVES: Recent studies have suggested the involvement of adipokines in the pathogenesis of cardiovascular diseases, including hypertension. In this study, we evaluated the significance of serum resistin levels in hypertensive patients using a meta-analysis approach. MATERIALS AND METHODS: Relevant articles were retrieved by searching the following databases: PubMed, Embase, Ovid Medline, ISI Web of Knowledge. The retrieved studies were subjected to a thorough screening procedure to identify case-control studies that contained the required data...
May 2, 2017: Oncotarget
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