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Aspirin Challenge–Induced Genome-Wide DNA Methylation Profile of Peripheral Blood Lymphocytes in Aspirin-Exacerbated Respiratory Disease

ABSTRACT: Aspirin Challenge–Induced Genome-Wide DNA Methylation Profile of Peripheral Blood Lymphocytes in Aspirin-Exacerbated Respiratory Disease

PROVIDER: PRJNA986480 | ENA |

REPOSITORIES: ENA

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Aspirin Challenge–Induced Genome-Wide DNA Methylation Profile of Peripheral Blood Lymphocytes in Aspirin-Exacerbated Respiratory Disease

Project description:Oral aspirin challenge may induce different global CpG methylation patterns between aspirin-exacerbated respiratory disease (AERD) and aspirin-tolerant asthma (ATA), which may affect gene expression several hours later. Therefore, in the present study, we compared global CpG methylation profiles before and after an oral aspirin challenge in patients with asthma. In addition, we compared differences in methylation profiles between AERD and ATA using an Illumina 860K Infinium Methylation EPIC BeadChip array platform, which had greater coverage than in the previous study (26,485 CpGs) to discover new methylated CpGs in PBLs associated with aspirin-induced bronchospasm.

2023-06-27 | GSE235569 | GEO

Exonic variants associated with development of Aspirin Exacerbated Respiratory Diseases

2014-09-05 | GSE61129 | GEO

Exonic variants associated with development of Aspirin Exacerbated Respiratory Diseases

Project description:Aspirin-exacerbated respiratory disease (AERD) is one phenotype of asthma, often in the form of a severe and sudden attack. Due to time consuming and laborious oral aspirin challenge (OAC) for diagnosis of AERD, non-invasive biomarkers have been searched. Therefore, we scrutinize AERD-associated exonic SNPs and examine the diagnostic potential of combination of these candidate SNPs to predict AERD DNA obtained from 164 AERD subjects, 397 subjects with aspirin-tolerant asthma (ATA), 398 normal controls and 10 null samples were subjected to Exome Chip assay of 240K SNPs. 1023 model (210-1) were generated from combination of the top 10 SNPs selected by p-values. The area under the curve (AUC) value of receiver operating characteristic (ROC) curves was calculated for each model. SNP functional Portal and PolyPhen-2 was used to validate the functional significance of the candidate SNPs

2014-09-05 | E-GEOD-61129 | biostudies-arrayexpress

Scoring tool for systemic symptoms during aspirin challenge detects mediator production in aspirin-exacerbated respiratory disease.

Project description: Not available

| S-EPMC8222107 | biostudies-literature

Total RNAseq of human healthy control inferior turbinate and glucocorticoid-treated, NSAID-exacerbated respiratory disease (N-ERD) nasal polyp nasal brushings

Project description:NSAID-exacerbated respiratory disease (N-ERD) represents a particularly severe endotype of chronic rhinosinusitis with nasal polyps (CRSwNP), which affects around 10-16% of CRSwNP patients. N-ERD is characterized by severe and refractory nasal polyposis, bronchial asthma and intolerance to non-steroidal anti-inflammatory drugs (NSAIDs), including aspirin. Today, the pathogenesis of N-ERD remains incompletely understood and curative treatments are lacking. Using a global transcriptomic approach, we identified local changes between the mucosa of N-ERD nasal polyps and healthy control inferior turbinates. Nasal brushing samples were collected from inferior turbinates of healthy controls and nasal polyps of N-ERD patients under anterior rhinoscopy and stored at -80°C in RNAprotect until RNA isolation and RNAseq.

2020-06-30 | E-MTAB-7962 | biostudies-arrayexpress

Perimenstrual Asthma in Aspirin-Exacerbated Respiratory Disease.

Project description:BackgroundAspirin-exacerbated respiratory disease (AERD) is a condition of the upper and lower respiratory tract characterized by reactions to nonsteroidal anti-inflammatory drugs. The Severe Asthma Research Program reported a strong association between perimenstrual asthma (PMA) and aspirin-sensitive asthma.ObjectiveTo evaluate the prevalence and characteristics of PMA among a cohort of patients with AERD.MethodsWomen 18 years and older enrolled in the Brigham and Women's AERD registry were surveyed about their reproductive, asthma, and sinus history. Subjects reporting the development of asthma before menopause were included. Continuous and categorical variables were compared between those reporting menstruation as a trigger for asthma symptoms and those who did not. Covariates expected a priori to have a positive effect on the odds of PMA were included in a multivariate logistic regression model to test associations between PMA and clinical factors.ResultsAmong females of childbearing potential, 369 of 695 responded to the survey and 322 met inclusion criteria. Twenty-four percent of subjects (n = 74) reported PMA. Earlier age of AERD onset, concurrent worsening of sinus symptoms the week before or during menstruation, increased emergency department visits for asthma, and a change in the severity of respiratory symptoms at menopause were more common in PMA. Earlier age at first nonsteroidal anti-inflammatory drug-induced respiratory reaction and emergency department visits increased the odds of reporting PMA.ConclusionsPMA and increased sinus symptoms with menstruation are common in females with AERD. Females with AERD should be counseled about upper and lower respiratory symptom deterioration with menstruation.

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Genetic mechanisms in aspirin-exacerbated respiratory disease.

Project description:Aspirin-exacerbated respiratory disease (AERD) refers to the development of bronchoconstriction in asthmatics following the exposure to aspirin or other nonsteroidal anti-inflammatory drugs. The key pathogenic mechanisms associated with AERD are the overproduction of cysteinyl leukotrienes (CysLTs) and increased CysLTR1 expression in the airway mucosa and decreased lipoxin and PGE2 synthesis. Genetic studies have suggested a role for variability of genes in disease susceptibility and the response to medication. Potential genetic biomarkers contributing to the AERD phenotype include HLA-DPB1, LTC4S, ALOX5, CYSLT, PGE2, TBXA2R, TBX21, MS4A2, IL10, ACE, IL13, KIF3A, SLC22A2, CEP68, PTGER, and CRTH2 and a four-locus SNP set composed of B2ADR, CCR3, CysLTR1, and FCER1B. Future areas of investigation need to focus on comprehensive approaches to identifying biomarkers for early diagnosis.

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Total RNAseq of human healthy control inferior turbinate and glucocorticoid-treated, aspirin-exacerbated respiratory disease (AERD) nasal polyp nasal brushings

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Aspirin-exacerbated respiratory disease: pathophysiological insights and clinical advances.

Project description:Asthma and chronic rhinosinusitis are heterogeneous airway diseases of the lower and upper airways, respectively. Molecular and cellular studies indicate that these diseases can be categorized into unique endotypes, which have therapeutic implications. One such endotype is aspirin-exacerbated respiratory disease (AERD), which encompasses the triad of asthma, aspirin (or nonsteroidal anti-inflammatory drug) hypersensitivity, and nasal polyposis. AERD has unique pathophysiological features that distinguish it from aspirin-tolerant asthma and other forms of chronic rhinosinusitis. This review details molecular and cellular features of AERD and highlights current and future therapies that are based on these insights.

| S-EPMC4790533 | biostudies-other

Platelets in patients with aspirin-exacerbated respiratory disease.

Project description:Aspirin-exacerbated respiratory disease (AERD) is a chronic inflammatory disease characterized clinically by the triad of asthma, nasal polyposis, and pathognomonic respiratory reactions after ingestion of aspirin. It is a distinct syndrome associated with eosinophilic infiltration of respiratory tissues and excessive production of cysteinyl leukotrienes. Despite the consistent clinical phenotype of the respiratory disease, the underlying pathogenesis of the disease remains unclear. In addition to their role in hemostasis, platelets have the capacity to influence the activation state and function of other immune cells during inflammation and to facilitate granulocyte recruitment into the tissues. Platelets also possess a repertoire of potent preformed mediators of inflammation that are released on activation and are a rich source of newly synthesized lipid mediators that alter vascular permeability and smooth muscle tone. Accordingly, platelet activity has been linked to diverse inflammatory diseases, including asthma. Both human and animal studies strongly suggest that platelet activity is uniquely associated with the pathophysiology of AERD. This article summarizes the evidence supporting an effector role for platelets in asthmatic patients in general and in patients with AERD in particular and considers the potential therapeutic implications.

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