Chronic rhinosinusitis (CRS) is a group of multifactorial diseases characterized by inflammation of the mucosa of the nose and paranasal sinuses with a history of at least 12 weeks of persistent symptoms despite maximal medical therapy. The precise role played by infection and immunoglobin E (IgE)-mediated hypersensitivity remains unclear. Diagnosis of CRS is based upon medical history, nasal endoscopy and computed tomography scan of the sinuses. The CRS with polyps visible in the middle meatus must be distinguished from the CRS without polyps. Based on the current knowledge about the pathogenesis of CRS, it is admitted that an optimal medical treatment must consider all favorizing factors and control efficaciously the inflammation process. In case of failure of medical treatment, endoscopic sinus surgery should be proposed. However, some well-validated data and scientific evidences are missing, even for the most frequently used medications. After a review of the actual definitions and classifications, a short description of the current knowledge about pathogenesis of CRS is provided in order to justify the actual therapeutic rationales and identify the needs for an effective treatment of CRS.
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http://dx.doi.org/10.2147/tcrm.2007.3.1.47 | DOI Listing |
Rhinology
January 2025
Kuopio, Finland.
Chronic rhinosinusitis with nasal polyps (CRSwNP), asthma, and non-steroidal anti-inflammatory drug-exacerbated respiratory disease (N-ERD) frequently coexist, forming a complex multimorbid condition often referred to as "global airway disease." This concept reflects shared pathophysiological mechanisms of eosinophilic inflammation and underscores the need for integrated treatment strategies targeting both upper and lower airway manifestations (1). The burden of severe CRSwNP, asthma, and N-ERD is substantial, particularly in terms of reduced quality of life, recurrent exacerbations, revision endoscopic sinus surgeries (ESS), and healthcare utilization (2).
View Article and Find Full Text PDFFront Mol Biosci
January 2025
Department of Otolaryngology Head and Neck Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
Introduction: Extensive efforts have been made to explore members of the IL-10 family as potential therapeutic strategies for various diseases; however, their biological role in chronic rhinosinusitis with nasal polyps (CRSwNP) remains underexplored.
Methods: Gene expression datasets GSE136825, GSE179265, and GSE196169 were retrieved from the Gene Expression Omnibus (GEO) for analysis. Candidate genes were identified by intersecting differentially expressed genes (DEGs) between the CRSwNP and control groups (DEGsall) with those between the high- and low-score groups within the CRSwNP cohort (DEGsNP).
World Allergy Organ J
January 2025
Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy.
Background: This study aimed to evaluate the impact of severe asthma (SA) treatments after 12 months in achieving clinical remission (CR) within the context of the Severe Asthma Network in Italy (SANI) using the recent SANI definition of CR on treatment.
Methods: CR has been defined by SANI as complete, partial, and no CR. Complete CR is defined by the absence of oral corticosteroids (OCS), no symptoms, no exacerbations, and stable lung function, and partial CR requires the absence of OCS and the fulfillment of 2 out of the other 3 criteria.
Allergy
January 2025
School of Immunology and Microbial Sciences, King's College London, London, UK.
Background: Alarmin cytokine IL-25 promotes type 2 inflammatory responses in disorders such as asthma and chronic rhinosinusitis with nasal polyps (CRSwNP) and known targets include ILC2 and Th2 cells. However, other cellular targets for IL-25 remain poorly defined.
Objective: To investigate induction and expression of IL-25 receptor (IL-17RB) by B cells and evaluate responsiveness of IL-17RB-expressing B cells to IL-25 in vitro.
Ther Adv Respir Dis
January 2025
Department of Chest Medicine, Taipei Veterans General Hospital, No. 201, Section 2, Shipai Road, Beitou District, Taipei City 11217, Taiwan.
Background: REMIT is the first real-world study of mepolizumab effectiveness in patients with severe asthma (SA) in Taiwan.
Objectives: The primary objective evaluated changes in clinically significant exacerbations (CSEs; defined as use of oral corticosteroids (OCS) or emergency department (ED) visits and/or hospitalizations) in the 12 months pre- and post-mepolizumab treatment. Secondary objectives assessed changes in the number of CSEs requiring ED visits/hospitalizations and daily maintenance OCS (mOCS) dosage 12 months pre- and post-mepolizumab treatment.
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