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Plos One : Elevation of Eosinophil-derived Neurotoxin in Plasma of the Subjects with Aspirin-exacerbated Respiratory Disease ; a Possible Peripheral Blood Protein Biomarker, Volume 8

By Rosenberg, Helene, F.

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Book Id: WPLBN0003947645
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Reproduction Date: 2015

Title: Plos One : Elevation of Eosinophil-derived Neurotoxin in Plasma of the Subjects with Aspirin-exacerbated Respiratory Disease ; a Possible Peripheral Blood Protein Biomarker, Volume 8  
Author: Rosenberg, Helene, F.
Volume: Volume 8
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary)
Historic
Publication Date:
Publisher: Plos

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Rosenberg, H. F. (n.d.). Plos One : Elevation of Eosinophil-derived Neurotoxin in Plasma of the Subjects with Aspirin-exacerbated Respiratory Disease ; a Possible Peripheral Blood Protein Biomarker, Volume 8. Retrieved from http://netlibrary.net/


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Description : Aspirin-exacerbated respiratory disease (AERD) remains widely underdiagnosed in asthmatics, primarily due to insufficient awareness of the relationship between aspirin ingestion and asthma exacerbation. The identification of aspirin hypersensitivity is therefore essential to avoid serious aspirin complications. The goal of the study was to develop plasma biomarkers to predict AERD. We identified differentially expressed genes in peripheral blood mononuclear cells (PBMC) between subjects with AERD and those with aspirin-tolerant asthma (ATA). The genes were matched with the secreted protein database (http:/spd.cbi.pku.edu.cn/) to select candidate proteins in the plasma. Plasma levels of the candidate proteins were then measured in AERD (n = 40) and ATA (n = 40) subjects using an enzyme-linked immunosorbent assay (ELISA). Target genes were validated as AERD biomarkers using an ROC curve analysis. From 175 differentially expressed genes (p-value ,0.0001) that were queried to the secreted protein database, 11 secreted proteins were retrieved. The gene expression patterns were predicted as elevated for 7 genes and decreased for 4 genes in AERD as compared with ATA subjects. Among these genes, significantly higher levels of plasma eosinophil-derived neurotoxin (RNASE2) were observed in AERD as compared with ATA subjects (70(14.62,311.92) mg/ml vs. 12(2.55,272.84) mg/ml, p-value ,0.0003). Based on the ROC curve analysis, the AUC was 0.74 (p-value = 0.0001, asymptotic 95% confidence interval [lower bound : 0.62, upper bound : 0.83]) with 95% sensitivity, 60% specificity, and a cut-off value of 27.15 mg/ml. Eosinophil-derived neurotoxin represents a novel biomarker to distinguish AERD from ATA.

 

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