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Oral disease

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https://www.readbyqxmd.com/read/27926465/freestyle-stentless-bioprosthesis-for-aortic-valve-therapy-17-year-clinical-results
#1
Juergen Ennker, Markus Meilwes, Joern Pons-Kuehnemann, Bernd Niemann, Philippe Grieshaber, Ina C Ennker, Andreas Boening
BACKGROUND: Aortic valve replacement with stentless bioprostheses has been shown to produce lower aortic gradients than stented bioprostheses, thus facilitating left ventricular mass regression and preventing heart failure. We sought to determine the long-term results of stentless biological aortic valve replacement over a 17-year follow-up. METHODS: Between 1996 and 2012, 2551 patients underwent isolated aortic valve replacement with a stentless prosthesis (Medtronic Freestyle) at a single center...
November 2016: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/27926431/the-oral-microbiome-in-health-and-its-implication-in-oral-and-systemic-diseases
#2
B Sampaio-Maia, I M Caldas, M L Pereira, D Pérez-Mongiovi, R Araujo
The oral microbiome can alter the balance between health and disease, locally and systemically. Within the oral cavity, bacteria, archaea, fungi, protozoa, and viruses may all be found, each having a particular role, but strongly interacting with each other and with the host, in sickness or in health. A description on how colonization occurs and how the oral microbiome dynamically evolves throughout the host's life is given. In this chapter the authors also address oral and nonoral conditions in which oral microorganisms may play a role in the etiology and progression, presenting the up-to-date knowledge on oral dysbiosis as well as the known underlying pathophysiologic mechanisms involving oral microorganisms in each condition...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27925796/a-severe-asthma-disease-signature-from-gene-expression-profiling-of-peripheral-blood-from-u-biopred-cohorts
#3
Jeannette Bigler, Michael Boedigheimer, James P R Schofield, Paul J Skipp, Julie Corfield, Anthony Rowe, Ana R Sousa, Martin Timour, Lori Twehues, Xuguang Hu, Graham Roberts, Andrew A Welcher, Wen Yu, Kian F Chung, Ian M Adcock, Peter J Sterk, Ratko Djukanović
RATIONALE: Stratification of asthma at the molecular level, especially using accessible biospecimens, could greatly enable patient selection for targeted therapy. OBJECTIVES: To determine the value of blood to identify transcriptional differences between clinically defined asthmatic and non-asthmatic groups, identify potential patient subgroups based on gene expression, and explore biological pathways associated with identified differences. METHODS: Transcriptomics profiles were generated by microarray analysis of blood from 610 asthmatic and control participants in U-BIOPRED...
December 7, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27925695/integrated-biomarker-profiling-of-smokers-with-periodontitis
#4
Radhakrishnan Nagarajan, Mohanad Al-Sabbagh, Dolph Dawson, Jeffrey Ebersole
: In the context of precision medicine, understanding patient-specific variation is an important step in developing targeted and patient-tailored treatment regimens for periodontitis. While several studies have successfully demonstrated the usefulness of molecular expression profiling in conjunction with single classifier systems in discerning distinct disease groups, the majority of these studies do not provide sufficient insights into potential variations within the disease groups. AIM: The goal of the present study is to discern biological response profiles of periodontitis and non-periodontitis smoking subjects using an informed panel of biomarkers across multiple scales (salivary, oral microbiome, pathogens and other markers)...
December 7, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/27925687/dna-base-excision-repair-proteins-ape-1-and-xrcc-1-are-overexpressed-in-oral-tongue-squamous-cell-carcinoma
#5
Thalita Santana, Melka Coêlho Sá, Edilmar de Moura Santos, Hébel Cavalcanti Galvão, Ricardo D Coletta, Roseana de Almeida Freitas
BACKGROUND: DNA repair systems play a critical role in protecting the human genome from damage caused by carcinogens. Modifications in DNA repair genes may be responsible for tumor development and resistance of malignant cells to chemotherapeutic agents. The major pathway for oxidative DNA damage repair is the base excision repair pathway. This study aimed to assess the immunoexpression of DNA repair proteins APE-1 and XRCC-1 and its association with clinical, histological and survival parameters in oral tongue squamous cell carcinoma in order to investigate a possible role for those proteins in tumor behavior...
December 7, 2016: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/27925230/role-of-abc-transporters-in-trans-epithelial-transport-of-vitamin-k-antagonists
#6
Bernadette Espana, Solange Couturier, Caroline Prouillac
Vitamin K antagonists remain (VKAs) the oral anticoagulant of choice of venous thromboembolic disease. These drugs are characterized by a large inter-individual variability requiring frequent dose tailoring. Genetic polymorphisms for cytochrome CYP2C9 and VKORC1 explain some of the variability, especially in warfarin and acenocoumarol responses. The aim of this study is to assess on cell models the role of ABC transporters in the intestinal transfer of the main coumarin derivatives (warfarin, acenocoumarol) and indanedione derivatives (phenindione, fluindione)...
December 7, 2016: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/27925202/calprotectin-induces-il-6-and-mcp-1-production-via-toll-like-receptor-4-signaling-in-human-gingival-fibroblasts
#7
Yasufumi Nishikawa, Yukari Kajiura, Jung Hwan Lew, Jun-Ichi Kido, Toshihiko Nagata, Koji Naruishi
Calprotectin, a heterodimer of S100A8 and S100A9 molecules, is associated with inflammatory diseases such as inflammatory bowel disease. We have reported that calprotectin levels in gingival crevicular fluids of periodontitis patients are significantly higher than in healthy subjects. However, the functions of calprotectin in pathophysiology of periodontitis are still unknown. The aim of this study is to investigate the effects of calprotectin on the productivity of inflammatory cytokines in human gingival fibroblasts (HGFs)...
December 7, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27925126/factors-related-to-the-dental-caries-incidence-in-youth-a-cohort-study-in-brazilian-northeastern
#8
Ana Karine Macedo Teixeira, Angelo Giuseppe Roncalli, Luiz Roberto Augusto Noro
The conceptual model of the life course considers that health-disease is a dynamic process that is also affected by previous and current lifelong experiences. The aim of the study was to investigate the incidence of caries and its determinants in young people in Sobral-Ceará, Brazil. This was a cohort study of oral health started in 2000, with waves in 2006 and 2012. 482 young people aged 17-21 years were examined and interviewed. The incidence of caries between 2006 and 2012 was the outcome analyzed and the independent variables were socioeconomic conditions and use of oral health actions and services...
December 2016: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/27924633/direct-oral-anticoagulants-and-cardiovascular-prevention-in-patients-with-nonvalvular-atrial-fibrillation
#9
Francisco Marín, Manuel Pablo Anguita Sánchez, Marcelo Sanmartín Fernández
Patients with atrial fibrillation have an increased risk for stroke, systemic embolism and cardiovascular events, including myocardial infarction and cardiovascular death. However, the majority of studies that have analyzed the efficacy of anticoagulants have been focused only on their effects on the risk of stroke. Areas covered: The available evidence about the association between atrial fibrillation and cardiovascular disease as well as the effects of oral anticoagulation on cardiovascular death and myocardial infarction, with a particular focus on direct oral anticoagulants, was updated in this review...
December 7, 2016: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/27924606/oral-epithelial-cell-culture-model-for-studying-the-pathogenesis-of-chronic-inflammatory-disease
#10
Mike R Milward, Martin R Ling, Melissa M Grant, Iain L C Chapple
The interactions between bacteria, epithelium, and neutrophilic polymorphonuclear leukocytes (neutrophils) are the key to the initiation and progression of many chronic inflammatory-immune diseases. In addition, all can be influenced by external factors, such as micronutrients, thereby providing potentially novel approaches to therapy. This chapter will therefore provide detailed methods for core techniques involved in studying cellular and molecular epithelial responses to a bacterial challenge in relation to chronic inflammatory disease pathogenesis and therapy...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924603/differential-expression-and-functional-analysis-of-high-throughput-omics-data-using-open-source-tools
#11
Moritz Kebschull, Melanie Julia Fittler, Ryan T Demmer, Panos N Papapanou
Today, -omics analyses, including the systematic cataloging of messenger RNA and microRNA sequences or DNA methylation patterns in a cell population, organ, or tissue sample, allow for an unbiased, comprehensive genome-level analysis of complex diseases, offering a large advantage over earlier "candidate" gene or pathway analyses. A primary goal in the analysis of these high-throughput assays is the detection of those features among several thousand that differ between different groups of samples. In the context of oral biology, our group has successfully utilized -omics technology to identify key molecules and pathways in different diagnostic entities of periodontal disease...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924596/methods-to-study-antagonistic-activities-among-oral-bacteria
#12
Fengxia Qi, Jens Kreth
Most bacteria in nature exist in multispecies communities known as biofilms. In the natural habitat where resources (nutrient, space, etc.) are usually limited, individual species must compete or collaborate with other neighboring species in order to perpetuate in the multispecies community. The human oral cavity is colonized by >700 microbial species known as the indigenous microbiota. This indigenous flora normally maintains an ecological balance through antagonistic as well as mutualistic interspecies interactions...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924594/adhesion-of-yeast-and-bacteria-to-oral-surfaces
#13
Richard D Cannon, Karl M Lyons, Kenneth Chong, Kathryn Newsham-West, Kyoko Niimi, Ann R Holmes
Colonization of surfaces in the human body by microorganisms is an early, essential, step in the initiation of infectious disease. We have developed in vitro assays to investigate interactions between yeast or bacterial cells and human tissues, fluids, or prostheses. Such assays can be used to identify the adhesins, ligands, and receptors involved in these interactions, for example, by determining which components of the microbe or human tissue/fluid interfere with adherence in the assay. The assays can also be applied to finding ways of preventing adhesion, and subsequent disease, by investigating the effects of different conditions and added compounds on adherence in the in vitro assays...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924592/microbial-community-profiling-using-terminal-restriction-fragment-length-polymorphism-t-rflp-and-denaturing-gradient-gel-electrophoresis-dgge
#14
José F Siqueira, Mitsuo Sakamoto, Alexandre S Rosado
In their natural environments, microorganisms usually live in organized communities. Profiling analysis of microbial communities has recently assumed special relevance as it allows a thorough understanding of the diversity of the microbiota, its behavior over time, and the establishment of patterns associated with health and disease. The application of molecular biology approaches holds the advantage of including culture-difficult and as-yet-uncultivated phylotypes in the profiles, providing a more comprehensive picture of the microbial community...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924591/the-oral-microbiota-in-health-and-disease-an-overview-of-molecular-findings
#15
José F Siqueira, Isabela N Rôças
Culture-independent nucleic acid technologies have been extensively applied to the analysis of oral bacterial communities associated with healthy and diseased conditions. These methods have confirmed and substantially expanded the findings from culture studies to reveal the oral microbial inhabitants and candidate pathogens associated with the major oral diseases. Over 1000 bacterial distinct species-level taxa have been identified in the oral cavity and studies using next-generation DNA sequencing approaches indicate that the breadth of bacterial diversity may be even much larger...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924587/qualitative-and-quantitative-proteome-analysis-of-oral-fluids-in-health-and-periodontal-disease-by-mass-spectrometry
#16
Erdjan Salih
The significance of protein identification and characterization by classical protein chemistry approaches is clearly highlighted by our detailed understanding of the biological systems assembled over a time period of almost a century. The advent of state-of-the-art mass spectrometry (MS) with sensitivity, speed, and global protein analysis capacity without individual protein purification has transformed the classical protein chemistry with premise to accelerate discovery. These combined with the ability of the oral fluids such as whole saliva (WS) and gingival crevicular fluid (GCF) to reflect both systemic and locally derived proteins have generated significant interest to characterize these fluids more extensively by MS technology...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924586/rna-sequencing-analysis-of-salivary-extracellular-rna
#17
Blanca Majem, Feng Li, Jie Sun, David T W Wong
Salivary biomarkers for disease detection, diagnostic and prognostic assessments have become increasingly well established in recent years. In this chapter we explain the current leading technology that has been used to characterize salivary non-coding RNAs (ncRNAs) from the extracellular RNA (exRNA) fraction: HiSeq from Illumina® platform for RNA sequencing. Therefore, the chapter is divided into two main sections regarding the type of the library constructed (small and long ncRNA libraries), from saliva collection, RNA extraction and quantification to cDNA library generation and corresponding QCs...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924398/a-randomised-phase-i-ii-trial-to-evaluate-the-efficacy-and-safety-of-orally-administered-oxalobacter-formigenes-to-treat-primary-hyperoxaluria
#18
Bernd Hoppe, Patrick Niaudet, Rémi Salomon, Jérôme Harambat, Sally-Anne Hulton, William Van't Hoff, Shabbir H Moochhala, Georges Deschênes, Elisabeth Lindner, Anna Sjögren, Pierre Cochat
BACKGROUND: Primary hyperoxaluria (PH) is a rare, genetic disorder which involves the overproduction of endogenous oxalate, leading to hyperoxaluria, recurrent urolithiasis and/or progressive nephrocalcinosis and eventually resulting in kidney failure and systemic oxalosis. The aim of this trial was to investigate whether treatment involving an oxalate-metabolising bacterium (Oxalobacter formigenes) could reduce urinary oxalate excretion in PH patients. METHODS: The efficacy and safety of O...
December 6, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/27924216/atrial-fibrillation-management-in-older-heart-failure-patients-a-complex-clinical-problem
#19
REVIEW
Giovanni Pulignano, Donatella Del Sindaco, Maria Denitza Tinti, Stefano Tolone, Giovanni Minardi, Antonio Lax, Massimo Uguccioni
BACKGROUND: Atrial fibrillation (AF) and heart failure (HF), two problems of growing prevalence as a consequence of the ageing population, are associated with high morbidity, mortality, and healthcare costs. AF and HF also share common risk factors and pathophysiologic processes such as hypertension, diabetes mellitus, ischemic heart disease, and valvular heart disease often occur together. Although elderly patients with both HF and AF are affected by worse symptoms and poorer prognosis, there is a paucity of data on appropriate management of these patients...
January 2016: Heart International
https://www.readbyqxmd.com/read/27924161/combination-therapy-for-ulcerative-colitis-orally-targeted-nanoparticles-prevent-mucosal-damage-and-relieve-inflammation
#20
Bo Xiao, Zhan Zhang, Emilie Viennois, Yuejun Kang, Mingzhen Zhang, Moon Kwon Han, Jiucun Chen, Didier Merlin
Combination therapy is an emerging strategy that is under intensive preclinical investigation for the treatment of various diseases. CD98 is highly overexpressed on the surfaces of epithelial cells and macrophages in the colon tissue with ulcerative colitis (UC), which is usually associated with mucosal damage and inflammation. We previously proved that CD98 siRNA (siCD98)-induced down-regulation of CD98 in colitis tissue decreased the severity of UC to a certain extent. In an effort to further improve the therapeutic efficacy, we aim to simultaneously deliver siCD98 in combination with a potent anti-inflammatory agent, curcumin (CUR), using hyaluronic acid (HA)-functionalized polymeric nanoparticles (NPs)...
2016: Theranostics
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