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Biomarkers reflux

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https://www.readbyqxmd.com/read/28620964/does-gene-expression-in-laryngeal-sub-sites-differ-between-patients-with-laryngopharyngeal-reflux-and-controls
#1
John M Wood, Damian J Hussey, Charmaine M Woods, David Astill, David I Watson, Bernard Lee, A Simon Carney
OBJECTIVE: to identify laryngeal mRNA gene changes in patients with laryngopharyngeal reflux (LPR). METHOD: Laryngeal biopsies from non-smoking LPR patients (n=10; Reflux Symptom Index (RSI) >12 and a Reflux Finding Score (RFS) >6) and controls (n=9; RSI <12 and RFS <6) were collected from 4 sub-sites (true vocal cord, false vocal cord, medial arytenoid, posterior commissure) of the larynx. qRT-PCR analyses were conducted on 20 reflux and inflammation related genes, including interleukin 6 and 8, cytokeratin 8 and 14, mucin genes MUC 1, 2, 3B, 4, 5B, 6 & 7, and carbonic anhydrase III...
June 16, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28612057/imaging-studies-and-biomarkers-to-detect-clinically-meaningful-vesicoureteral-reflux
#2
REVIEW
Michaella Maloney Prasad, Earl Y Cheng
The work-up of a febrile urinary tract infection is generally performed to detect vesicoureteral reflux (VUR) and its possible complications. The imaging modalities most commonly used for this purpose are renal-bladder ultrasound, voiding cystourethrogram and dimercapto-succinic acid scan. These studies each contribute valuable information, but carry individual benefits and limitations that may impact their efficacy. Biochemical markers are not commonly used in pediatric urology to diagnose or differentiate high-risk disease, but this is the emerging frontier, which will hopefully change our approach to VUR in the future...
June 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28577763/alternatives-to-traditional-per-oral-endoscopy-for-screening
#3
REVIEW
Judith Offman, Rebecca C Fitzgerald
Barrett's esophagus (BE) predisposes patients to esophageal adenocarcinoma. 3 to 6% of individuals with gastro-esophageal reflux disease are estimated to have BE but only 20 to 25% of BE patients are currently diagnosed. The current gold standard for diagnosis of BE is per-oral upper GI endoscopy. As this is not suitable for large-scale screening, a number of alternative methods are currently being investigated: transnasal and video capsule endoscopy, endomicroscopy, cell collection devices like the cytosponge and biomarkers...
July 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28523029/evaluation-of-caspase-3-enzyme-and-tnf-alpha-as-biomarkers-in-ureteropelvic-junction-obstruction-in-children-a-preliminary-report
#4
Mehdi Shirazi, Ali Eslahi, Vahidreza Sharifi, Fatemeh Rahimi, Alireza Safarpour
OBJECTIVE: To determine the applicability of urinary caspase 3 enzyme and TNF-α as biomarkers in children with ureteropelvic junction obstruction (UPJO). METHODS: In this study, 31 unilateral UPJO patients and 33 age- and sex-matched healthy childrens were enrolled. The patients with UPJO consisted of 11 female and 20 male children between the ages of 2 to 62 months old. All participants were evaluated regarding anterior-posterior(AP) diameter and cortical thickness of affected kidney by ultrasonography...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28483464/urinary-albumin-excretion-and-chronic-kidney-disease-in-children-with-vesicoureteral-reflux
#5
Romaine de Sépibus, François Cachat, Blaise J Meyrat, Gezim Dushi, Ariane Boubaker, Mohamed Faouzi, Eric Girardin, Hassib Chehade
BACKGROUND: Albuminuria is a potential biomarker of chronic kidney disease (CKD) in various glomerular diseases. Vesicoureteral reflux (VUR) often progresses to CKD, and study is required of use of albuminuria as a biomarker for this condition. The aim of this study was to evaluate the association between albuminuria and glomerular filtration rate (GFR) or filtration fraction (FF) in children with VUR. STUDY DESIGN: In this retrospective study, renal parameters of 141 children with VUR were investigated, using inulin clearance, FF, and albuminuria...
April 26, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28422774/squamous-cellular-carcinoma-antigen-serum-determination-as-a-biomarker-of-barrett-esophagus-and-esophageal-cancer-a-phase-iii-study
#6
Gemma Maddalo, Matteo Fassan, Romilda Cardin, Marika Piciocchi, Filippo Marafatto, Massimo Rugge, Giovanni Zaninotto, Caterina Pozzan, Carlo Castoro, Alberto Ruol, Alessandra Biasiolo, Fabio Farinati
GOAL: To evaluate the potential role of the determination of the immunocomplexed form of squamous cell carcinoma antigen [SCCA-immunoglobulin (Ig)M] for the screening of Barrett esophagus (BE) and esophageal adenocarcinoma (EAC). BACKGROUND: The cost-effectiveness of surveillance in BE is still debated and the use of biomarkers in screening and surveillance still not recommended. No information is available regarding SCCA-IgM determination in BE. STUDY: SCCA-IgM levels were determined (enzyme-linked immunosorbent assay) in 231 patients prospectively recruited, 71 with BE, 53 with EAC, and 107 controls, including 42 blood donors and 65 patients with gastroesophageal reflux...
April 18, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28347199/the-use-of-cellular-and-molecular-biomarkers-to-manage-copd-exacerbations
#7
Terence Ho, Angira Dasgupta, Frederick E Hargreave, Parameswaran Nair
Chronic obstructive pulmonary disease (COPD) exacerbations are a common cause of respiratory morbidity and mortality, and have various etiologies. Multiple cellular and molecular biomarkers have been associated with exacerbations. Quantitative sputum cell counts are able to identify the presence and type of bronchitis, which is an important contributor to exacerbations. Their utility to monitor bronchitis and to help treat exacerbations has been evaluated, yet they are not used in routine clinical practice...
May 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28280325/novel-route-synthesis-of-porous-and-solid-gold-nanoparticles-for-investigating-their-comparative-performance-as-contrast-agent-in-computed-tomography-scan-and-effect-on-liver-and-kidney-function
#8
Farooq Aziz, Ayesha Ihsan, Aalia Nazir, Ishaq Ahmad, Sadia Zafar Bajwa, Asma Rehman, Abdoulaye Diallo, Waheed S Khan
Gold nanoparticles (GNPs) with dimension in the range of 1-100 nm have a prominent role in a number of biomedical applications like imaging, drug delivery, and cancer therapy owing to their unique optical features and biocompatibility. In this work, we report a novel technique for the synthesis of two types of GNPs namely porous gold nanoparticles (PGNPs) and solid gold nanoparticles (SGNPs). PGNPs of size 35 nm were fabricated by reduction of gold (III) solution with lecithin followed by addition of L-ascorbic acid and tri-sodium citrate, whereas SGNPs with a dimension of 28 nm were prepared by reflux method using lecithin as a single reducing agent...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28224634/pepsin-as-a-biomarker-for-laryngopharyngeal-reflux-in-children-with-laryngomalacia
#9
Kendra Luebke, Tina L Samuels, Thomas H Chelius, Cecille G Sulman, Michael E McCormick, Joseph E Kerschner, Nikki Johnston, Robert H Chun
OBJECTIVES/HYPOTHESIS: Laryngomalacia is a common cause of newborn stridor. Laryngopharyngeal reflux (LPR) has been associated with laryngomalacia. Although pepsin, a component of LPR, has been associated with inflammatory diseases of the aerodigestive tract, its presence in the airways of laryngomalacia patients is unknown. STUDY DESIGN: Prospective case-control study comparing patients under age 3 years with laryngomalacia to children without laryngomalacia. METHODS: Children less than 3 years old undergoing supraglottoplasty for laryngomalacia or surgery unrelated to the airway, without a history of laryngomalacia, reflux, or respiratory disease, were offered enrollment...
February 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28191787/urinary-excretion-of-egf-and-mcp-1-in-children-with-vesicoureteral-reflux
#10
Valentina Pastore, Fabio Bartoli
PURPOSE: The aim of this study was to investigate the urinary concentration of epidermal growth factor (EGF) and monocyte chemotactic protein-1 (MCP-1) as reflux nephropathy (RN) biomarkers before and after endoscopic treatment of moderate to severe vesico-ureteral reflux (VUR). MATERIALS AND METHODS: A prospective study was carried out on 72 children with moderate to severe VUR. All patients underwent endoscopic treatment using Macroplastique ® or Deflux®. Vesico-ureteral reflux resolution was tested by post-operative voiding cystourethrography after 3 months and 2 years...
May 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28190989/candidate-serum-metabolite-biomarkers-for-differentiating-gastroesophageal-reflux-disease-barrett-s-esophagus-and-high-grade-dysplasia-esophageal-adenocarcinoma
#11
Matthew F Buas, Haiwei Gu, Danijel Djukovic, Jiangjiang Zhu, Lynn Onstad, Brian J Reid, Daniel Raftery, Thomas L Vaughan
INTRODUCTION/OBJECTIVES: Incidence of esophageal adenocarcinoma (EA), an often fatal cancer, has increased sharply over recent decades. Several important risk factors (reflux, obesity, smoking) have been identified for EA and its precursor, Barrett's esophagus (BE), but a key challenge remains identifying individuals at highest risk, since most with reflux do not develop BE, and most with BE do not progress to cancer. Metabolomics represents an emerging approach for identifying novel biomarkers associated with cancer development...
March 2017: Metabolomics: Official Journal of the Metabolomic Society
https://www.readbyqxmd.com/read/27986173/liver-function-assessment-by-magnetic-resonance-imaging
#12
REVIEW
Emre Ünal, Deniz Akata, Musturay Karcaaltincaba
Liver function assessment by hepatocyte-specific contrast-enhanced magnetic resonance imaging is becoming a new biomarker. Liver function can be assessed by T1 mapping (reduction rate) and signal intensity measurement (relative enhancement ratio) before and after GD-EOB-DTPA (gadoxetic acid) administration, as alternative to Tc-99m galactosyl serum albumin scintigraphy, 99m Tc-labeled mebrofenin scintigraphy, and indocyanine green clearance test. Magnetic resonance imaging assessment of liver function can enable diagnosis of cirrhosis, nonalcoholic fatty liver disease associated fibrosis and steatohepatitis, primary sclerosing cholangitis, toxic hepatitis, and chemotherapy and radiotherapy-related changes, which may be only visible on hepatobiliary phase images...
December 2016: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/27927666/epigenetic-biomarkers-in-progression-from-non-dysplastic-barrett-s-oesophagus-to-oesophageal-adenocarcinoma-a-systematic-review-protocol
#13
T Nieto, C L Tomlinson, J Dretzke, S Bayliss, M Dilworth, A D Beggs, O Tucker
INTRODUCTION: Barrett's oesophagus (BO), a metaplastic condition affecting the lower oesophagus due to long-standing gastro-oesophageal reflux and chronic inflammation, is a precursor lesion for oesophageal adenocarcinoma (OADC). There is no clinical test to predict which patients with BO will progress to OADC. The British Society of Gastroenterology recommends endoscopic surveillance of patients with BO. Epigenetic changes have been well characterised in the neoplastic progression of ulcerative colitis to colonic carcinoma, another gastrointestinal cancer associated with chronic inflammation...
December 7, 2016: BMJ Open
https://www.readbyqxmd.com/read/27875488/esomeprazole-fda-approval-in-children-with-gerd-exposure-matching-and-exposure-response
#14
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
#15
REVIEW
A Rabinovich, S R Kahn
Postthrombotic syndrome (PTS) is a chronic complication of deep vein thrombosis (DVT) that 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...
February 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/27791437/urinary-biomarkers-for-renal-tract-malformations
#16
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
#17
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
#18
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
#19
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...
December 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
#20
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
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