The role of preoperative blood eosinophil counts in distinguishing chronic rhinosinusitis with nasal polyps phenotypes

2020 ◽  
Author(s):  
Bing Zhong ◽  
Tian Yuan ◽  
Jintao Du ◽  
Kaisen Tan ◽  
Qintai Yang ◽  
...  
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Blood Eosinophil ◽  
Eosinophil Counts

scholarly journals Let-7a-5p regulates the inflammatory response in chronic rhinosinusitis with nasal polyps

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Jianwei Zhang ◽  
Lei Han ◽  
Feng Chen
Keyword(s):  
Inflammatory Response ◽  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Mapk Pathway ◽  
Inhibitory Effect ◽  
Luciferase Reporter ◽  
Western Blot Assay ◽  
Protein Levels ◽  
Tnf Α

Abstract Background Let-7a-5p is demonstrated to be a tumor inhibitor in nasopharyngeal carcinoma. However, the role of let-7a-5p in chronic rhinosinusitis with nasal polyps (CRSwNP) has not been reported. This study is designed to determine the pattern of expression and role of let-7a-5p in CRSwNP. Methods The expression level of let-7a-5p, TNF-α, IL-1β, and IL-6 in CRSwNP tissues and cells were detected by RT-qPCR. Western blot assay was carried out to measure the protein expression of the Ras-MAPK pathway. Dual luciferase reporter assay and RNA pull-down assay were used to explore the relationship between let-7a-5p and IL-6. Results Let-7a-5p was significantly downregulated in CRSwNP tissues and cells. Moreover, the mRNA expression of TNF-α, IL-1β and IL-6 was increased in CRSwNP tissues, while let-7a-5p mimic inhibited the expression of TNF-α, IL-1β and IL-6. Besides that, let-7a-5p was negatively correlated with TNF-α, IL-1β and IL-6 in CRSwNP tissues. In our study, IL-6 was found to be a target gene of let-7a-5p. Additionally, let-7-5p mimic obviously reduced the protein levels of Ras, p-Raf1, p-MEK1 and p-ERK1/2, while IL-6 overexpression destroyed the inhibitory effect of let-7a-5p on the Ras-MAPK pathway in CRSwNP. Conclusion We demonstrated that let-7a-5p/IL-6 interaction regulated the inflammatory response through the Ras-MAPK pathway in CRSwNP.

Role of the Aryl Hydrocarbon Receptor in the Pathogenesis of Chronic Rhinosinusitis with Nasal Polyps

Inflammation ◽  
2013 ◽  
Vol 37 (2) ◽  
pp. 387-395 ◽  
Author(s):  
Ping Wei ◽  
Guo-hua Hu ◽  
Hou-yong Kang ◽  
Hong-bing Yao ◽  
Wei Kou ◽  
...  
Keyword(s):  
Aryl Hydrocarbon Receptor ◽  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Aryl Hydrocarbon

scholarly journals The Role of NF-κB in Chronic Rhinosinusitis With Nasal Polyps

2019 ◽  
Vol 11 (6) ◽  
pp. 806 ◽  
Author(s):  
Hahn Jin Jung ◽  
Yu-Lian Zhang ◽  
Dong-Kyu Kim ◽  
Chae-Seo Rhee ◽  
Dong-Young Kim
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Polyps

scholarly journals Multiparametric Analysis of Factors Associated With Eosinophilic Chronic Rhinosinusitis With Nasal Polyps

2020 ◽  
pp. 014556132096035
Author(s):  
Gian Luca Fadda ◽  
Andrea Galizia ◽  
Giuseppe Galizia ◽  
Paolo Castelnuovo ◽  
Maurizio Bignami ◽  
...  
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Predictive Biomarker ◽  
Blood Eosinophil ◽  
High Power Field ◽  
Diverse Range ◽  
Blood Eosinophilia ◽  
Tissue Eosinophilia ◽  
Eosinophilic Chronic Rhinosinusitis ◽  
Clinical Records

Introduction: Previous studies have reported a diverse range of threshold values for blood eosinophilia. In addition, a single predictive biomarker for eosinophilic chronic rhinosinusitis (CRS) with nasal polyps (ECRSwNP) has not yet been identified. Objectives: The aim of this study is to compare the clinical characteristics of ECRSwNP and non-ECRSwNP to evaluate the preoperative risk of tissue eosinophilia of chronic rhinosinusitis with nasal polyps (CRSwNP) through a multiparametric statistical analysis. Methods: One hundred ten patients with evidence of chronic polypoid rhinosinusitis were included in this study and clinical records were retrospectively reviewed. Eosinophilic CRSwNP was diagnosed based on the presence of at least 10 eosinophils per high-power field. The demographic and clinical features of ECRSwNP and non-ECRSwNP are described. The values of blood eosinophilia as predictors of tissue eosinophilia have been identified using receiver operating characteristic curves. As the predictive value of the identified cutoff through regression analysis was low, we evaluated whether other risk factors could be statistically associated with ECRSwNP, and from this, a new predictive model was proposed for the identification of eosinophilic nasal polyps before surgery. Results: We found that the best method for predicting ECRSwNP is based on a model having asthma, blood eosinophil percentage, posterior ethmoid value in Lund-Mackay score, and modified Lund-Kennedy score as explanatory variables. Conclusions: This study provides new data for a better understanding of the polypoid CRS endotypes, and the proposed model allows the endotype to be identified preoperatively.

scholarly journals The role of peripheral blood eosinophil counts in COVID‐19 patients

Allergy ◽  
2020 ◽  
Author(s):  
Guogang Xie ◽  
Fengming Ding ◽  
Lei Han ◽  
Dongning Yin ◽  
Hongzhou Lu ◽  
...  
Keyword(s):  
Peripheral Blood ◽  
Blood Eosinophil ◽  
Peripheral Blood Eosinophil ◽  
Eosinophil Counts

The Role of Superantigens in Chronic Rhinosinusitis with Nasal Polyps

ORL ◽  
2008 ◽  
Vol 70 (2) ◽  
pp. 97-103 ◽  
Author(s):  
Mingming Wang ◽  
Peng Shi ◽  
Bei Chen ◽  
Hongping Zhang ◽  
Jingfen Jian ◽  
...  
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Polyps

Role of local allergic inflammation and Staphylococcus aureus enterotoxins in Chinese patients with chronic rhinosinusitis with nasal polyps

2017 ◽  
Vol 131 (8) ◽  
pp. 707-713 ◽  
Author(s):  
K-J Cheng ◽  
Y-Y Xu ◽  
M-L Zhou ◽  
S-H Zhou ◽  
S-Q Wang
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Immunoglobulin E ◽  
Allergic Inflammation ◽  
Staphylococcal Enterotoxin ◽  
Eosinophilic Chronic Rhinosinusitis ◽  
Specific Immunoglobulin E ◽  
Specific Immunoglobulin ◽  
Local Allergy

AbstractObjective:To investigate the role of local allergic inflammation and Staphylococcus aureus enterotoxins in chronic rhinosinusitis with nasal polyps.Methods:This study included 36 patients with chronic rhinosinusitis with nasal polyps and 18 controls. Total immunoglobulin E, eosinophil cationic protein, staphylococcal enterotoxin types A and B specific immunoglobulin E, staphylococcal enterotoxin types A and B, and myeloperoxidase levels were determined.Results:Four patients with chronic rhinosinusitis with nasal polyps had a local allergy. All chronic rhinosinusitis with nasal polyps patients tested negative for staphylococcal enterotoxin types A and B specific immunoglobulin E. The chronic rhinosinusitis with nasal polyps group had significantly elevated staphylococcal enterotoxin types A and B levels in the supernatant. Fourteen patients belonged to the eosinophilic chronic rhinosinusitis with nasal polyps group and the others were characterised as having non-eosinophilic chronic rhinosinusitis with nasal polyps.Conclusion:Local allergy may play a role in chronic rhinosinusitis with nasal polyps, independent of staphylococcal enterotoxin superantigens. Staphylococcal enterotoxins may be important in the pathogenesis of chronic rhinosinusitis with nasal polyps; however, their roles as superantigens were not confirmed in this study. In Chinese subjects, chronic rhinosinusitis with nasal polyps usually manifests as a neutrophilic inflammation.

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