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Biomarkers reflux

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https://www.readbyqxmd.com/read/27875488/esomeprazole-fda-approval-in-children-with-gerd-exposure-matching-and-exposure-response
#1
Justin C Earp, Nitin Mehrotra, Kristina E Peters, Robert P Fiorentino, Donna Griebel, Sue Chih Lee, Andrew Mulberg, Kerstin Röhss, Marie Sandström, Amy Taylor, Christoffer W Tornøe, Erica L Wynn, Jan-Stefan Van der Walt, Christine Garnett
OBJECTIVES: FDA approval of proton-pump inhibitors for infantile GERD has been limited by intra-patient variability in the clinical assessment of GERD. For children 1-17 years old, extrapolating efficacy from adults for IV esomeprazole was accepted. The oral formulation was previously approved in children. Exposure-response and exposure matching analyses were sought to identify approvable pediatric doses. METHODS: Intragastric pH biomarker comparisons between children and adults were conducted...
November 19, 2016: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/27860129/the-postthrombotic-syndrome-current-evidence-and-future-challenges
#2
REVIEW
A Rabinovich, S R Kahn
Post thrombotic syndrome (PTS) is a chronic complication of deep vein thrombosis (DVT), which develops in 20%-50 % of patients. PTS manifests as a spectrum of symptoms and signs of chronic venous insufficiency that can impose significant morbidity and have a negative impact on quality of life. Chronic venous hypertension caused by a combination of residual venous obstruction and valvular reflux is believed to play a major role in the pathophysiology of PTS. The Villalta scale is the most widely applied clinical scale used to diagnose and define PTS...
November 18, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/27791437/urinary-biomarkers-for-renal-tract-malformations
#3
Pedro Magalhães, Joost P Schanstra, Emma Carrick, Harald Mischak, Petra Zürbig
Renal tract malformations (RTMs) are congenital anomalies of the kidneys and urinary tract, which are the major cause of end-stage renal disease in children. Using immunoassay-based approaches (ELISA, western blot), individual urinary proteins including transforming growth factor β, tumor necrosis factor and monocyte attractant proteins 1 were found to be associated to RTMs. However, only mass spectrometry (MS) based methods leading to the identification of panels of protein-based markers composed of fragments of the extracellular matrix allowed the prediction of progression of RTMs and its complications...
November 15, 2016: Expert Review of Proteomics
https://www.readbyqxmd.com/read/27756313/erratum-to-respiratory-symptoms-sleep-disordered-breathing-and-biomarkers-in-nocturnal-gastroesophageal-reflux
#4
Össur Ingi Emilsson, Bryndís Benediktsdóttir, Ísleifur Ólafsson, Elizabeth Cook, Sigurður Júlíusson, Einar Stefán Björnsson, Sunna Guðlaugsdóttir, Anna Soffía Guðmundsdóttir, Ekaterina Mirgorodskaya, Evert Ljungström, Erna Sif Arnardóttir, Þórarinn Gíslason, Christer Janson, Anna-Carin Olin
No abstract text is available yet for this article.
October 18, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27709331/how-to-diagnose-and-treat-functional-chest-pain
#5
REVIEW
Jose M Remes-Troche
Chest pain that is not explained by reflux disease or cardiac, musculoskeletal, mucosal, or motor esophageal abnormalities is classified as functional chest pain (FCP). Although several mechanisms are involved, esophageal hypersensitivity plays a major role and it could be considered a biomarker for FCP. Psychologic comorbidity such as anxiety, neuroticism, depression, and somatization is common. When the diagnosis of FCP is suspected, patients should undergo evaluation with esophageal motility testing, endoscopy, 24-h esophageal pH monitoring, and in some cases, sensory tests...
December 2016: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/27687158/concordance-between-cardio-protective-effect-on-isoproterenol-induced-acute-myocardial-ischemia-and-phenolic-content-of-different-extracts-of-curcuma-aromatica
#6
Yan Li, Jie Feng, Yeqin Mo, Huagang Liu, Bin Yang
CONTEXT: A classic traditional Chinese medicine Curcuma aromatica Salisb. (Zingiberaceae) has been reported to have favourable effects on the cardiovascular system. OBJECTIVE: To research the cardio-protective effect of different C. aromatica hydroalcoholic extracts on isoproterenol (ISO)-induced acute myocardial ischemia (AMI) in rats. The total phenols in different extracts were detected simultaneously. MATERIALS AND METHODS: The rhizomes of C...
August 9, 2016: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27667995/mir-203-expression-in-exfoliated-cells-of-tongue-coating-represents-a-sensitive-and-specific-biomarker-of-gastroesophageal-reflux-disease
#7
Xiuli Yan, Shengliang Zhu, Hui Zhang
Background and Aim. MicroRNAs (miRNAs) have been implicated in the pathophysiology of numerous human diseases including gastroesophageal reflux disease (GERD). The objective of this study was to investigate the miRNA expression of exfoliated cells of the tongue in patients with GERD versus healthy controls (Ctrls). Methods. Using quantitative reverse-transcription PCR (qRT-PCR), expression levels of six candidate miRNAs (miR-143, miR-145, miR-192, miR-194, miR-203, and miR-205) were examined across a discovery cohort of patients with GERD (n = 24) versus Ctrls (n = 24)...
2016: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/27646537/respiratory-symptoms-sleep-disordered-breathing-and-biomarkers-in-nocturnal-gastroesophageal-reflux
#8
Össur Ingi Emilsson, Bryndís Benediktsdóttir, Ísleifur Ólafsson, Elizabeth Cook, Sigurður Júlíusson, Einar Stefán Björnsson, Sunna Guðlaugsdóttir, Anna Soffía Guðmundsdóttir, Ekaterina Mirgorodskaya, Evert Ljungström, Erna Sif Arnardóttir, Þórarinn Gíslason, Christer Janson, Anna-Carin Olin
BACKGROUND: Nocturnal gastroesophageal reflux (nGER) is associated with respiratory symptoms and sleep-disordered breathing (SDB), but the pathogenesis is unclear. We aimed to investigate the association between nGER and respiratory symptoms, exacerbations of respiratory symptoms, SDB and airway inflammation. METHODS: Participants in the European Community Respiratory Health Survey III in Iceland with nGER symptoms (n = 48) and age and gender matched controls (n = 42) were studied by questionnaires, exhaled breath condensate (EBC), particles in exhaled air (PEx) measurements, and a home polygraphic study...
2016: Respiratory Research
https://www.readbyqxmd.com/read/27604397/pepsin-in-saliva-as-a-biomarker-for-oropharyngeal-reflux-compared-with-24-hour-esophageal-impedance-ph-monitoring-in-pediatric-patients
#9
J E Fortunato, R B D'Agostino, M O Lively
BACKGROUND: Pepsin in saliva is a proposed biomarker for oropharyngeal reflux. Pepsin may be prevalent in saliva from subjects with gastro-esophageal reflux and may correlate with proximal reflux by intraluminal impedance/pH monitoring (MII/pH). METHODS: Patients (3 days to 17.6 years, n=90) undergoing 24-hour MII/pH monitoring and asymptomatic controls (2 months to 13.7 years, n=43) were included. Salivary pepsin was determined using a pepsin enzyme-linked immunosorbent assay...
September 7, 2016: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/27592280/diagnostic-value-of-a-pattern-of-exhaled-breath-condensate-biomarkers-in-asthmatic-children
#10
I Maloča Vuljanko, M Turkalj, B Nogalo, S Bulat Lokas, D Plavec
BACKGROUND: Diagnosing asthma in children is a challenge and using a single biomarker from exhaled breath condensate (EBC) showed the lack of improvement in it. OBJECTIVE: The aim of this study was to assess the diagnostic potential of a pattern of simple chemical biomarkers from EBC in diagnosing asthma in children in a real-life setting, its association with lung function and gastroesophageal reflux disease (GERD). METHODS: In 75 consecutive children aged 5-7 years with asthma-like symptoms the following tests were performed: skin prick tests, spirometry, impulse oscillometry (IOS), exhaled NO (FENO), 24-hour oesophageal pH monitoring and EBC collection with subsequent analysis of pH, carbon dioxide tension, oxygen tension, and concentrations of magnesium, calcium, iron and urates...
August 31, 2016: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/27579823/biomarkers-predictive-of-exacerbations-in-the-spiromics-and-copdgene-cohorts
#11
Jason D Keene, Sean Jacobson, Katerina Kechris, Gregory L Kinney, Marilyn G Foreman, Claire M Doerschuk, Barry J Make, Jeffrey L Curtis, Stephen I Rennard, R Graham Barr, Eugene R Bleecker, Richard E Kanner, Eric C Kleerup, Nadia N Hansel, Prescott G Woodruff, MeiLan K Han, Robert Paine Iii, Fernando J Martinez, Russell P Bowler, Wanda K O'Neal
RATIONALE: COPD exacerbations are associated with disease progression, higher healthcare cost, and increased mortality. Published predictors of future exacerbations include previous exacerbation, airflow obstruction, poor overall health, home oxygen use, and gastroesophageal reflux. The value of adding blood biomarkers to clinical variables to predict exacerbations remains unproven. METHODS: Subjects from SPIROMICS (n=1544) and COPDGene (n=602) cohorts had 90 plasma or serum candidate proteins measured on study entry using Myriad-RBM multiplex panels...
August 31, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27467504/risk-prediction-in-barrett-s-esophagus-aspects-of-a-combination-of-molecular-and-epidemiologic-biomarkers-reflecting-alterations-of-the-microenvironment
#12
Anna K Brandtner, Michael Quante
Barrett's esophagus (BE) is a chronic, metaplastic lesion of the esophagus and the only known precursor of esophageal adenocarcinoma. The identification of risk factors to assess the risk for BE and their correspondence with hallmarks of malignant progression for early stratification purposes is critically needed. Data legitimate the assumption that aside of reflux symptoms and related conditions, also demographic and environmental factors are thought to be associated with the risk for BE and its progression to esophageal adenocarcinoma...
2016: Scandinavian Journal of Clinical and Laboratory Investigation. Supplementum
https://www.readbyqxmd.com/read/27384379/leukocyte-telomere-length-in-relation-to-the-risk-of-barrett-s-esophagus-and-esophageal-adenocarcinoma
#13
E Christina M Wennerström, Rosa A Risques, Donna Prunkard, Carol Giffen, Douglas A Corley, Liam J Murray, David C Whiteman, Anna H Wu, Leslie Bernstein, Weimin Ye, Wong-Ho Chow, Thomas L Vaughan, Linda M Liao
Chronic inflammation and oxidative damage caused by obesity, cigarette smoking, and chronic gastroesophageal reflux disease (GERD) are major risk factors associated with Barrett's esophagus (BE) and esophageal adenocarcinoma (EAC). EAC has been increasing the past few decades, and early discovery and treatment are crucial for survival. Telomere shortening due to cell division and oxidative damage may reflect the impact of chronic inflammation and could possibly be used as predictor for disease development. We examined the prevalence of shorter leukocyte telomere length (LTL) among individuals with GERD, BE, or EAC using a pooled analysis of studies from the Barrett's and Esophageal Adenocarcinoma Consortium (BEACON)...
September 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27318339/-the-significance-of-a-4-183-da-peptide-of-dermcidin-protein-in-the-early-diagnosis-and-differential-diagnosis-of-acute-coronary-syndrome
#14
Feng Kai, Liu Lifeng, Song Haijing, Liu Xianhua, Xia Hu
OBJECTIVE: To investigate the predictive value of 4,183 Da peptide of dermcidin protein in the early diagnosis and differential diagnosis of ischemic heart disease. METHODS: A prospective controlled study was conducted. Serum samples were drawn from 161 patients with acute coronary'syndrome [ACS, including 46 patients with unstable angina (UA), 23 with acute non-ST elevation myocardial infarction, and 92 with acute ST segment elevation myocardial infarction], 111 subjects for routine physical examination, including 45 patients with hypertension history, 42 with coronary heart disease, 22 with diabetes, and 54 patients with non-ACS (including pulmonary embolism, aortic dissection, aneurysm, arrhythmia, myocarditis, coronary myocardial bridge, pleurisy, pneumothorax pneumomediastinum, rib fracture, reflux esophagitis, peptic ulcer, and pancreatitis) to serve as controls...
December 2015: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/27317433/protective-effects-of-vitamin-d3-on-fimbrial-cells-exposed-to-catalytic-iron-damage
#15
Francesca Uberti, Vera Morsanuto, Debora Lattuada, Barbara Colciaghi, Andrea Cochis, Alessandro Bulfoni, Paola Colombo, Giorgio Bolis, Claudio Molinari
BACKGROUND: Recently, vitamin D3 (1alpha, 25-dihydroxyvitamin D) has shown its capability to take part in many extraskeletal functions and its serum levels have been related to patient survival rate and malignancy of many types of neoplasms, including ovarian cancers. Catalytic iron is a free circulating form of iron that is able to generate reactive oxygen species and consequently to promote a number of cellular and tissutal dysfunctions including tumorigenesis. In fertile women an important source of catalytic iron is derived from retrograde menstruation...
2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27273863/a-pilot-randomized-clinical-trial-assessing-the-effect-of-cricoid-pressure-on-risk-of-aspiration
#16
J Kyle Bohman, Rahul Kashyap, Augustine Lee, Zhaoping He, Sam Soundar, Laura L Bolling, Daryl J Kor
INTRODUCTION: Patients at risk for microaspiration during elective intubation often receive cricoid pressure in the hopes of mitigating such risk. However, there is scarce evidence to either support or reject this practice. The objective of this investigation was to assess the effect of cricoid pressure on microaspiration and to inform the potential feasibility of conducting a larger, more definitive clinical trial. METHODS: This was a pilot randomized clinical trial set in the operating rooms of a tertiary referral hospital between August and October of 2014...
June 7, 2016: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/27198566/proteomic-analysis-in-esophageal-eosinophilia-reveals-differential-galectin-3-expression-and-s-nitrosylation
#17
Carla M Davis, Girish Hiremath, John E Wiktorowicz, Kizhake V Soman, Christof Straub, Christina Nance, Norma Quintanilla, Konrad Pazdrak, Kalpesh Thakkar, Anthony P Olive, Alexander Kurosky
BACKGROUND AIMS: Esophageal eosinophilia (EE) can be caused by gastroesophageal reflux disease (GERD), proton-pump inhibitor-responsive EE (PPI-REE) or eosinophilic esophagitis (EoE). This study quantified protein expression and S-nitrosylation (SNO) post-translational modifications in EE to elucidate potential disease biomarkers. METHODS: Proximal and distal esophageal (DE) biopsy proteins in patients with EE and in controls were assayed for protein content and fluorescence-labeled with and without ascorbate treatment...
2016: Digestion
https://www.readbyqxmd.com/read/27068720/2015-david-y-graham-lecture-the-first-two-decades-of-eosinophilic-esophagitis-from-acid-reflux-to-food-allergy
#18
REVIEW
Ikuo Hirano
Collaborative efforts by pediatric and adult gastroenterologists, allergists, dieticians, and pathologists have brought about marked progress in the recognition, understanding, and management of eosinophilic esophagitis (EoE) over the past two decades. Once an esoteric diagnosis, EoE is now increasingly identified as a major cause of morbidity, afflicting both children and adults. The detection of mucosal eosinophils has evolved from a diagnostic feature of acid reflux to a biomarker of food sensitization of the esophagus...
June 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27048502/gastrointestinal-mucosal-barrier-function-and-diseases
#19
REVIEW
Tadayuki Oshima, Hiroto Miwa
The gastrointestinal mucosal barrier plays an essential role in the separation of the inside of the body from the outside environment. Tight junctions (TJs) are the most important component for construction of a constitutive barrier of epithelial cells, and they regulate the permeability of the barrier by tightly sealing the cell-cell junctions. TJ proteins are represented by claudins, occludin, junctional adhesion molecules, and scaffold protein zonula occludens. Among these TJ proteins, claudins are the major components of TJs and are responsible for the barrier and the polarity of the epithelial cells...
August 2016: Journal of Gastroenterology
https://www.readbyqxmd.com/read/26908564/clinical-study-of-ursodeoxycholic-acid-in-barrett-s-esophagus-patients
#20
Bhaskar Banerjee, Nicholas J Shaheen, Jessica A Martinez, Chiu-Hsieh Hsu, Eugene Trowers, Blake A Gibson, Gary Della'Zanna, Ellen Richmond, H-H Sherry Chow
Prior research strongly implicates gastric acid and bile acids, two major components of the gastroesophageal refluxate, in the development of Barrett's esophagus and its pathogenesis. Ursodeoxycholic acid (UDCA), a hydrophilic bile acid, has been shown to protect esophageal cells against oxidative stress induced by cytotoxic bile acids. We conducted a pilot clinical study to evaluate the clinical activity of UDCA in patients with Barrett's esophagus. Twenty-nine patients with Barrett's esophagus received UDCA treatment at a daily dose of 13 to 15 mg/kg/day for 6 months...
July 2016: Cancer Prevention Research
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