scholarly journals Effect of Biospray Dressings on Eosinophil Infiltration in the Nasal Mucosa and Serum IgE Levels After Nasal Provocation in Experimental Allergic Rhinitis

2020 ◽  
Vol 11 ◽  
pp. 215265672090214 ◽  
Author(s):  
Shan Huang ◽  
Geping Wu ◽  
Xiaodan Gu ◽  
Hongyan Zhu ◽  
Xingkai Ma ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
Nasal Mucosa ◽  
Eosinophil Infiltration ◽  
Serum Ige ◽  
Nasal Provocation ◽  
Experimental Allergic

Intralymphatic Administration of Metagonimus yokogawai-Extracted Protein Attenuates Experimental Murine Allergic Rhinitis Model

2020 ◽  
pp. 1-7
Author(s):  
Hyung Chae Yang ◽  
Eun Jeong Won ◽  
Moon-Ju Kim ◽  
Chung Man Sung ◽  
Joon Haeng Rhee ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
Lymph Nodes ◽  
Therapeutic Effect ◽  
Nasal Mucosa ◽  
Treated Group ◽  
Eosinophil Infiltration ◽  
Th2 Response ◽  
Cervical Lymph Nodes ◽  
Immunological Mechanism ◽  
Cytokine Profiles

<b><i>Objectives:</i></b> This study aimed to evaluate potential therapeutic effect of <i>Metagonimus yokogawai</i> on the OVA-induced allergic rhinitis model. <b><i>Methods:</i></b> OVA-sensitized mice were used to assess potential therapeutic effect of the extract protein of <i>M. yokogawai</i> (My-TP). My-TP was administrated via the intralymphatic route to cervical lymph nodes. The frequencies of sneezing or nasal rubbing were recorded. Histopathologic evaluation was performed for eosinophil infiltrations in the tissues of the nasal mucosa and skin. The mRNA relative expressions of the cytokine profiles including Th1, Th2, Th17, and Treg subsets in the nasal mucosa, cervical lymph nodes, and spleen were analyzed by quantitative real-time reverse-transcriptase polymerase chain reaction. The potential underlying mechanism was investigated by examining cytokine profiles including IL-4 and Treg subsets from lymphocytes of the spleen by flow cytometry. <b><i>Results:</i></b> Intralymphatic injection of My-TP reduced allergic symptoms and eosinophil infiltration in the nasal mucosa. My-TP-treated group showed markedly decreased levels of OVA-specific IgE and WBC counts in nasal lavage. My-TP-treated group showed the decreased expression levels of IL-4, while those of IL-10 were increased in both the nasal mucosa. The levels of IFN-γ and IL-17 were also decreased in the nasal mucosa and cervical lymph nodes. The immunological mechanism may involve the downregulation of Th2 response and upregulation of Tregs in the nasal mucosa and cervical lymph nodes. <b><i>Conclusions:</i></b> Our results provide the first evidence of potential therapeutic effect of <i>M. yokogawai</i> in OVA-sensitized allergic rhinitis mice, suggesting that a Treg/Th2 reorganization may play a role in clinical course of allergic rhinitis.

scholarly journals Peculiarities of non-allergic rhinitis with eosinophilia syndrome

2015 ◽  
Vol 12 (4) ◽  
pp. 3-7
Author(s):  
V A Utesheva ◽  
G P Bondareva ◽  
A I Kryukov ◽  
T G Barkhina
Keyword(s):  
Allergic Rhinitis ◽  
Nasal Mucosa ◽  
Specific Ige ◽  
Skin Tests ◽  
Eosinophilic Infiltration ◽  
Eosinophilic Inflammation ◽  
Nonallergic Rhinitis ◽  
Provocation Tests ◽  
Nasal Provocation ◽  
Non Allergic Rhinitis

Nonallergic rhinitis with eosinophilia syndrome (NARES) is a syndrome containing the symptoms similar to allergic rhinitis, with absence of atopy and the presence of eosinophila more than 20% in smears from nasal mucosa. Pathophysiology of NARES has not been studied completely, but permanent eosinophilic inflammation is the keystone of NARES pathogenesis. This disease is marked by local eosinophilic infiltration without atopy, confirmed by negative skin tests, normal levels of total and specific IgE in serum, negative nasal provocation tests with allergens. Nowadays this nosology is considered to be poorly understood.

scholarly journals Nasal Administration of Lipopolysaccharide Exacerbates Allergic Rhinitis through Th2 Cytokine Production from Mast Cells

Allergies ◽  
2021 ◽  
Vol 1 (4) ◽  
pp. 216-224
Author(s):  
Noriaki Aoi ◽  
Takafumi Fuchiwaki ◽  
Ichiro Morikura ◽  
Hideyuki Kawauchi ◽  
Tatsunori Sakamoto
Keyword(s):  
Allergic Rhinitis ◽  
Clinical Practice ◽  
Mast Cells ◽  
Nasal Mucosa ◽  
Cytokine Production ◽  
Nasal Administration ◽  
Eosinophil Infiltration ◽  
Dependent Manner ◽  
Th2 Cytokine ◽  
Nasal Symptoms

Background: Microbial infection or exposure to endotoxin later in life exacerbates established asthma. Mast cells are involved in the exacerbation of asthma. This exacerbation involves a toll-like receptor (TLR)–mediated response of mast cells. In the clinical practice of otolaryngology, otolaryngologists experience an exacerbation of nasal congestion when infectious rhinitis develops in patients with allergic rhinitis, but the mechanisms are unknown. Therefore, this study investigated the effect of lipopolysaccharide (LPS) on allergic rhinitis using a mouse allergic rhinitis model. Methods: Female BALB/c mice, TLR4 gene mutant C3H/HeJ mice or mast cell–deficient WBB6F1-W/Wv mice were sensitized intraperitoneally with ovalbumin (OVA)/alum, and were intranasal challenged with OVA and/or LPS. Nasal symptoms and histologic changes were examined. Cytokines in nasal tissue were examined by Western blot. The effects of LPS on degranulation and cytokine production of bone marrow–derived mast cells (BMMCs) were investigated. Results: Nasal administration of LPS together with the antigen exacerbated nasal symptoms, eosinophil infiltration of the nasal mucosa, and increased IL-5 production in the nasal mucosa. It was not observed in C3H/HeJ mice and WBB6F1-W/Wv mice. The addition of LPS increased the production of IL-5 from BMMCs in a dose-dependent manner, but no effect on degranulation was observed. Conclusions: Intranasal administration of LPS exacerbates allergic rhinitis through Th2 cytokine production from mast cells. This observation provides clues to the mechanism of exacerbation of allergic rhinitis caused by an infection in daily clinical practice.

scholarly journals Local Expression of Interleukin-17a is Correlated with Nasal Eosinophilia and Clinical Severity in Allergic Rhinitis

2014 ◽  
Vol 5 (1) ◽  
pp. ar.2014.5.0078 ◽  
Author(s):  
Seiichiro Makihara ◽  
Mitsuhiro Okano ◽  
Tazuko Fujiwara ◽  
Yohei Noda ◽  
Takaya Higaki ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
Nasal Mucosa ◽  
Immunoglobulin E ◽  
Inferior Turbinate ◽  
Forced Expiratory Volume ◽  
Clinical Severity ◽  
Eosinophil Infiltration ◽  
Total Serum ◽  
Blood Eosinophil ◽  
Local Expression

Interleukin (IL)-17A is a major cytokine produced by Th17 cells, which are associated with chronic inflammations. The local expression of IL-17A in allergic rhinitis (AR) remains to be characterized. We sought to determine the role of IL-17A expression in human inferior turbinate mucosa in the pathophysiology of AR. Inferior turbinate mucosa was sampled from medical treatment-resistant, surgery-required patients with perennial AR (PAR, n = 21), nonallergic rhinitis with eosinophilia syndrome (NARES, n = 7), and nonallergic hypertrophic rhinitis (HR, n = 13). IL-17A expression was determined with immunohistochemical staining. The mean number of IL-17A+ cells and eosinophils per field were counted. Total serum immunoglobulin E (IgE) levels, blood eosinophil count, and forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) ratio were also examined in each patient. IL-17A was primarily expressed in infiltrating inflammatory cells. The number of IL-17A+ cells in nasal mucosa was significantly higher in the PAR group compared with HR (p = 0.002) and NARES (p = 0.021) groups. There was a significant and positive correlation between the number of IL-17A+ cells and total nasal symptom score (rho = 0.403; p = 0.011), especially sneezing score (rho = 0.471; p = 0.003). The number of IL-17A+ cells was significantly and positively correlated with the degree of eosinophil infiltration (rho = 0.623; p < 0.001), but not with total serum IgE levels (rho = 0.284; p = 0.098), blood eosinophil counts (rho = 0.302; p = 0.056), or FEV1/FVC ratio (rho = 0.092; p = 0.569). The present study provides evidence that IL-17A expression in the nasal mucosa is associated with the pathophysiology of AR, including disease severity and nasal eosinophilia.

Serum immunoglobulin E reactivity to cross-reacting panallergen components in north-eastern Poland patients pollen sensitized

2020 ◽  
Vol 41 (3) ◽  
pp. 183-191
Author(s):  
Krzysztof Kowal ◽  
Agnieszka Pampuch ◽  
Ewa Sacharzewska ◽  
Ewa Swiebocka ◽  
Zenon Siergiejko ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
Allergen Immunotherapy ◽  
Immunoglobulin E ◽  
Pollen Allergy ◽  
Serum Ige ◽  
Ige Reactivity ◽  
Allergen Components ◽  
North Eastern ◽  
Allergen Sources ◽  
Seasonal Pollen

Background: The presence of immunoglobulin E (IgE), which cross-reacts with allergen components, such as profilins, polcalcins, and cross-reacting carbohydrate determinants (CCD), creates a problem when selecting patients for allergen immunotherapy by using conventional methods. The aim of this study was to evaluate the prevalence of sensitization to profilins, polcalcins, and CCDs in patients with seasonal pollen allergic rhinitis. Methods: The study was performed on a group of 112 patients with seasonal pollen allergic rhinitis, ages 14 to 55 years, with sensitization to at least one seasonal allergen (IgE > 0.7 kUA/L). The presence of IgE sensitization to recombinant (r) Bet v 2, rPhl p 12, rBet v 4, rPhl p 7, and CCDs, in addition to rBet v 1, rPhl p 1, rPhl p 5, was evaluated by using a multiparameter immunoblot. Results: Among the studied patients, 64.3, 80.4, and 41.1% were sensitized to birch, timothy grass, and mugwort pollen, respectively. Sensitization to profilins rBet v 2/Phl p 12 was demonstrated in 28.6%, to polcalcins Bet v 4/Phl p 7 in 8.9%, and to CCDs in 25%. In 29.3%, serum IgE reactivity to any of the cross-reactive components could be demonstrated. Serum IgE reactivity to rBet v 2 was always accompanied by IgE reactivity to rPhl p 12, and IgE reactivity to rBet v 4 was always accompanied by IgE reactivity to rPhl p 7. Among the patients with pollinosis co-sensitized to at least two allergen sources according to extract-based diagnosis, possible false-positive results due to sensitization to cross-reactive components were detected in 17.9%. Conclusion: Evaluation of sensitization to cross-reacting components may be useful in evaluation of patients with pollen allergy who are being assessed for allergen immunotherapy to optimize the constitution of their immunotherapy vaccines.

Nasal Cytology in Radiofrequency Turbinate Volume Reduction

ORL ◽  
2021 ◽  
pp. 1-6
Author(s):  
Giancarlo Pecorari ◽  
Giuseppe Riva ◽  
Claudia Bartoli ◽  
Mattia Ravera ◽  
Valeria Dell’Era ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
Effective Treatment ◽  
Nasal Obstruction ◽  
Nasal Mucosa ◽  
Inferior Turbinate ◽  
Volume Reduction ◽  
Nonallergic Rhinitis ◽  
Turbinate Hypertrophy ◽  
Nasal Cytology ◽  
Rhinitis Medicamentosa

Introduction: Radiofrequency turbinate volume reduction (RFTVR) is an effective treatment of inferior turbinate hypertrophy. RFTVR can reduce epithelial cell alterations in nasal mucosa. The aim of this observational study was to evaluate the effects of RFTVR on nasal obstruction and cytology, stratifying for different types of rhinitis. Methods: Nasal cytology and subjective nasal obstruction were evaluated on 113 patients before RFTVR (T0) and after 3 months (T1). The patients were divided into groups on the basis of the underlying disease: allergic rhinitis, nonallergic rhinitis, rhinitis medicamentosa, and other diseases (e.g., hormonal-based turbinate hypertrophy). Results: Nasal cytology at T0 identified 42 patients with allergic rhinitis, 40 with nonallergic rhinitis, 19 with rhinitis medicamentosa, and 12 with other diseases. An improvement of nasal cytology at T1 was observed in 29.2% of cases. They mainly consisted of patients with nonallergic rhinitis with neutrophils, whose neutrophil infiltrate decreased. Only 2 cases (1.7%) showed a worsening of nasal cytology at T1. A statistically significant decrease in subjective nasal obstruction was observed for every group (p < 0.05). Higher differences of nasal obstruction between T0 and T1 were found in patients with rhinitis medicamentosa or other diseases. Conclusion: RFTVR represents a safe and effective treatment for turbinate hypertrophy of various etiology. It is not responsible for a worsening of inflammatory infiltrate of the nasal mucosa.

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