scholarly journals Anti-inflammatory effect of wogonin on allergic responses in ovalbumin-induced allergic rhinitis in the mouse

2018 ◽  
Vol 9 ◽  
pp. 215265671876414 ◽  
Author(s):  
Kyeong Ah Kim ◽  
Joo Hyun Jung ◽  
Yun Sook Choi ◽  
Gyu Kang ◽  
Seon Tae Kim

Background Wogonin is commonly used for the treatment of allergic diseases. However, neither its precise effect in preventing allergic rhinitis (AR) nor its mechanism of action are known. Objectives In this study, the effect of wogonin on allergic responses in ovalbumin (OVA) induced AR was investigated in mice. Methods BALB/c mice were sensitized with intraperitoneal (i.p.) OVA and then challenged intranasally with OVA. Wogonin (10 and 30 mg/kg) was given to the treatment groups, and the effect of wogonin on the release of allergic inflammatory mediators, specifically OVA-specific immunoglobulin E (IgE) and inflammatory cytokines, was explored. Eosinophil infiltration and the levels of interleukin (IL) 5 and IL-13 were measured by immunohistochemistry. Results In mice with AR, wogonin decreased OVA-specific IgE levels in serum, and the levels of the cytokines IL-4, IL-5, IL-13, eotaxin, and RANTES in nasal lavage fluid. Serum levels of IL-4, IL-5, and IL-13 were lower in both groups of wogonin-pretreated mice than in the OVA group. A reduction in eosinophil infiltration of the nasal mucosa and inhibition of the expression of IL-5 and IL-13 were also noted in the treated groups. Conclusion Wogonin induced antiallergic effects in a murine model of AR by decreasing the infiltration of eosinophils and levels of T-helper type 2 cytokines. Thus, wogonin merits consideration as a therapeutic agent for treating AR.

Dose-Response ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 155932582090479 ◽  
Author(s):  
Feng Chen ◽  
Dongyun He ◽  
Bailing Yan

Background: Allergic rhinitis (AR) is an immunoglobulin E (IgE)-mediated immune-inflammatory response mainly affecting nasal mucosa. Apigenin, a flavonoid, has been documented to possess promising anti-allergic potential. Aim: To determine the potential mechanism of action of apigenin against ovalbumin (OVA)-induced AR by assessing various behavioral, biochemical, molecular, and ultrastructural modifications. Materials and Methods: Allergic rhinitis was induced in BALB/c mice (18-22 grams) by sensitizing it with OVA (5%, 500 μL, intraperitoneal [IP] on each consecutive day, for 13 days) followed by intranasal challenge with OVA (5%, 5 μL per nostril on day 21). Animals were treated with either vehicle (distilled water, 10 mg/kg, IP) or apigenin (5, 10, and 20 mg/kg, IP). Results: Intranasal challenge of OVA resulted in significant induction ( P < .05) of AR reflected by an increase in nasal symptoms (sneezing, rubbing, and discharge), which were ameliorated significantly ( P < .05) by apigenin (10 and 20 mg/kg) treatment. It also significantly inhibited ( P < .05) OVA-induced elevated serum histamine, OVA-specific IgE, total IgE, and IgG1 and β-hexosaminidase levels. Ovalbumin-induced increased levels of interleukin (IL)-4, IL-5, IL-13, and interferon (IFN)-γ in nasal lavage fluid were significantly decreased ( P < .05) by apigenin. Ovalbumin-induced alterations in splenic GATA binding protein 3 (ie, erythroid transcription factor) (GATA3), T-box protein expressed in T cells (T-bet), signal transducer and activator of transcription-6 (STAT6), suppressor of cytokine signaling 1 (SOCS1), nuclear factor-kappa B (NF-κB), and nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor-alpha messenger RNA, as well as protein expressions were significantly inhibited ( P < .05) by apigenin. It also significantly ameliorated ( P < .05) nasal and spleen histopathologic and ultrastructure aberration induced by OVA. Conclusion: Apigenin regulates Th1/Th2 balance via suppression in expressions of Th2 response (IgE, histamine, ILs, GATA3, STAT6, SOCS1, and NF-κB) and activation of Th1 response (IFN-γ and T-bet) to exert its anti-allergic potential in a murine model of OVA-induced AR.


2017 ◽  
Vol 8 (3) ◽  
pp. ar.2017.8.0207
Author(s):  
Mai Aly Gharib Aly ◽  
Mohamed Tawfik El Tabbakh ◽  
Waheed Fawzy Heissam ◽  
Said Hamed Abbadi

Introduction Allergic rhinitis (AR) is one of the most common allergic diseases, which affects ~20% of the world's population. T-helper (Th) type 2 cells produce interleukin (IL) 4 and IL-13, and mediate allergic responses, and these cytokines have been extensively studied as key players in the atopic airway diseases. However, the involvement of Th17 cells and IL-17 in AR has not been clearly examined. Aim To reevaluate AR clinical severity with serum IL-17, whether IL-17 affects the disease alone or in contribution with the atopic predisposition. Patients and Methods During an 18-month period, 39 individuals were divided into three groups: A, (13 control), B (13 with mild-to-moderate AR), and C (13 with severe AR). Both group B and group C patients (26) were subjected to clinical examination and allergy skin testing, and to measurement of both total serum immunoglobulin E (IgE) and IL-17 levels. Eleven patients with AR then were exposed to 6 months of cluster immunotherapy, whereas the rest of the patients were not exposed. Results Revealed a significant elevation of serum IL-17 levels with an associated increase in serum IgE in the patients with AR compared with controls and revealed that the serum levels of both total serum IgE and IL-17 decreased significantly after cluster immunotherapy. Conclusion These preliminary results added new data about the use of injective immunotherapy as well as reported on the use of sublingual immunotherapy.


2014 ◽  
Vol 17 (2) ◽  
pp. 331-337 ◽  
Author(s):  
P.M. Wilkołek ◽  
Z.J.H. Pomorski ◽  
M.P. Szczepanik ◽  
Ł. Adamek ◽  
M. Pluta ◽  
...  

Abstract The present study was designed to asses specific IgE towards environment allergens in 42 healthy horses. Determination of this immunoglobulin in serum serve as diagnostic tools in allergic diseases to improve efficacy of the treatment and proper allergen selection to specific immunotherapy. Serum levels of allergen specific IgE were measured with equine monoclonal antibody, using 15 individual and 5 mix allergens in North European Panel. The study revealed season dependent increased levels of allergen specific IgE in normal horses. It is noteworthy that healthy horses show high percentage of positive reactions, most commonly towards to domestic mites D. farinae (80%), D. pteronyssinus (35.71%) and storage mites T. putrenscentiae (42.86%), Acarus siro (40.48%). These allergens play an important role in equine, canine and feline atopic dermatitis. We also demonstrated high IgE levels in the group of horse specific insect allergens. Tabanus sp. (35.71%), Culicoides sp. (28.57%) and Simulium sp. (26.19%) were the most frequent insect positive reaction allergens. No positive reactions in all groups of allergens were found in winter season, low and merely detectable levels of antibodies have been found relating to D. farianae and T. putrescentiae allergen. We observed elevated mould-IgE levels in horses that live in stables, while outdoor living horses showed very low levels. Amongst all positive reactions we observed only weak and moderate reactions but no strong positive reactions were found. No significant differences were observed between three breeds of horses with the exception of moulds and D. pteronyssinus allergens


2018 ◽  
Vol 22 (04) ◽  
pp. 428-431
Author(s):  
Mehmet Demir

Introduction Allergic rhinitis is one of the most common allergic diseases that cause a decrease in quality of life. Over the last decades, the increase in the number of cases is supposed to be a result of industrialization and lifestyle changes. Vitamin D, which is a steroid hormone, has a significant immunomodulatory and antioxidant role in the human body. Objective The objective of the present study is to investigate the role of 1α-25-dihydroxyvitamin D3 levels in allergic rhinitis patients and to compare them to the levels found in the healthy population. Methods A total of 256 participants were included in the present study. Allergic rhinitis is diagnosed with the help of the Allergic Rhinitis and Its Impact on Asthma (ARIA) guidelines confirmed through skin prick tests. Control subjects were selected among people without allergy history, which was also confirmed through skin prick tests. The levels of 1α-25-dihydroxyvitamin D3, immunoglobulin E (IgE), and eosinophil counts were measured in blood samples from both groups. Results The mean value of serum levels of 1α-25-hydroxyvitamin D3 was 25.5 ± 3.74 in the allergic rhinitis group, and 31.58 ± 3.85 in the control subjects. This difference reveals statistically-decreased levels in the allergic rhinitis group (p < 0.05). The total IgE levels are increased in the allergic rhinitis group (p < 0.05) and negatively correlated with the serum levels of 1α-25-hydroxyvitamin D3 (r = - 0.259, p < 0.05). Conclusion Lower serum levels of 1α-25-hydroxyvitamin D3 were detected in the allergic rhinitis population. This data is also correlated to the IgE response in the study group. A supplement of 1α-25-hydroxyvitamin D3 in deficient patients might be helpful to relieve symptoms and signs of allergic rhinitis, but further studies are needed.


2011 ◽  
Vol 154 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Feng-Ying Chang ◽  
Jyh-Hong Lee ◽  
Yao-Hsu Yang ◽  
Hsin-Hui Yu ◽  
Li-Chieh Wang ◽  
...  

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Jia Wang ◽  
Jinshu Yin ◽  
Hong Peng ◽  
Aizhu Liu

Abstract Background To investigate the role of microRNA-29 (miR-29) in mice with allergic rhinitis (AR) and its underlying mechanism. Methods AR model was established in BALB/c mice by intraperitoneal sensitization and intranasal challenge with ovalbumin (OVA). miRNA expression was examined in the nasal mucosa tissues of mice and patients with AR, and miRNA-29 was found to be downregulated. To unveil the role of miRNA-29 in AR, it was overexpressed in the nasal mucosa of AR mice by intranasal administration of miRNA-29 agomir. The symptoms of nasal rubbing and sneezing were recorded and evaluated. miR-29 expression, OVA-specific immunoglobulin E (IgE) concentration, pro-inflammatory cytokines levels, eosinophils number, and cleaved caspase-3 and CD276 expression were examined in nasal mucosa tissues and nasal lavage fluid (NALF) by qRT-PCR, ELISA, hematoxylin and eosin staining, western blotting, or immunohistochemistry, respectively. TUNEL assay was used to analyze nasal mucosa cells apoptosis. Results Decreased expression of miR-29 was observed in AR, the symptoms of which were alleviated by overexpressing miR-29. In addition, overexpression of miR-29 markedly reduced the concentration of OVA-specific IgE, the levels of IL-4, IL-6, IL-10, and IFN-γ, the pathological alterations and eosinophils infiltration in the nasal mucosa. Furthermore, restoration of miR-29 expression reduced nasal mucosa cell apoptosis. Moreover, overexpression of miR-29 significantly attenuated CD276 mRNA and protein levels in nasal mucosa cells. Conclusion MiR-29 mediated antiallergic effects in OVA-induced AR mice by decreasing inflammatory response, probably through targeting CD276. MiRNA-29 may serve as a potential novel therapeutic target for the treatment of AR.


Author(s):  
M Vanitha ◽  
K Sowmini ◽  
K Santha Sheela Kumari ◽  
Resu Neha Reddy

Introduction: Allergic rhinitis is a heterogeneous disorder characterised by major symptoms like sneezing, itching, nasal congestion and rhinorrhea. Because of bothersome side effects of first-generation antihistaminic drugs, second generation antihistaminic drugs have been used since few years. Recent studies have showed that novel drug Bilastine has been approved as an effective treatment in Allergic rhinitis. Aim: To evaluate Total Nasal Symptom Scores (TNSS), Serum Immunoglobulin E (IgE), Serum Absolute Eosinophil Count (AEC) in patients with allergic rhinitis, pre and post-treatment with Bilastine and Levocetirizine. Materials and Methods: A randomised, open-labelled, study was conducted between January 2020 to March 2020. Hundred patients with allergic rhinitis were enrolled into the study. They were randomised into two groups of which group A received tablet Bilastine 20 mg once daily for two weeks and group B received tablet Levocetirizine 5 mg once daily for two weeks. The results of TNSS, IgE, AEC and pre and post-treatment values were compared in both the treatment groups. Unpaired t-test was used as the test of significance between the two treatment groups. Results: The prevalence of allergic rhinitis in the study was 49% in males and 51% in females. The mean difference in pre and post-treatment in TNSS (group A=1.627, group B=1.143), serum IgE (A=33.118, B=49.653), serum AEC (A=28.00, B=27.245) showed no statistically significant difference between two groups (p-value >0.05). Conclusion: Bilastine and levocetirizine are equally efficacious. Though there is clinical significance in treatment of allergic rhinitis between the groups, there is no statistical significance which would prove Bilastine is clinically superior to Levocetirizine for the allergic rhinitis treatment.


Open Medicine ◽  
2020 ◽  
Vol 15 (1) ◽  
pp. 1202-1212
Author(s):  
Aichun Zhang ◽  
Yangzi Jin

AbstractAllergic rhinitis (AR) is one of the most common chronic diseases. This study examined whether microRNA (miR)-182-5p plays a role in AR by regulating toll-like receptor 4 (TLR4). First, data demonstrated that TLR4 was a target of miR-182-5p. Subsequently, AR mouse model was established to explore the role of miR-182-5p and TLR4 in AR in vivo. Initially, quantitative reverse transcription-PCR (qRT-PCR) analysis indicated that miR-182-5p was downregulated, while TLR4 expression was upregulated in AR mice. Then we found that miR-182-5p mimic reduced the frequency of sneezing and nose rubbing of the AR mice. In addition, miR-182-5p mimic significantly increased ovalbumin (OVA)-specific IgE and leukotriene C4 expression levels in nasal lavage fluid (NLF) and serum of AR mice. miR-182-5p mimic decreased the number of inflammatory cells in NLF of AR mice. It also reduced the levels of inflammatory factors in the serum of AR mice, such as interleukin (IL)-4, IL-5, IL-13, IL-17 and tumor necrosis factor (TNF)-α, while increasing the release of IFN-γ and IL-2. Finally, miR-182-5p mimic inhibited NF-κB signaling pathway activation in AR mice. However, all effects of miR-182-5p mimic on AR mice were reversed by TLR4-plasmid. In conclusion, miR-182-5p/TLR4 axis may represent a novel therapeutic target for AR.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chao-Yi Wu ◽  
Hsin-Yi Huang ◽  
Wen-Chi Pan ◽  
Sui-Ling Liao ◽  
Man-Chin Hua ◽  
...  

AbstractThe proportion of allergic diseases attributable to atopy remains a subject of controversy. This study aimed to estimate the population risk of physician-diagnosed asthma, rhinitis and eczema attributed to atopy among a population sample of Asian school-age children. Asian children aged 5–18 years (n = 1321) in the Prediction of Allergies in Taiwanese CHildren (PATCH) study were tested for serum allergen-specific immunoglobulin E. Physician-diagnosed asthma, rhinitis and eczema were assessed by a modified International Study of Asthma and Allergies in Childhood questionnaire. Atopy was defined as the presence of serum allergen-specific immunoglobulin E. In this population-based study, 50.4% of the subjects with asthma, 46.3% with rhinitis, and 46.7% with eczema were attributable to atopy. The population attributable risk (PAR) of atopy for three allergic diseases was higher in adolescents (asthma, 54.4%; rhinitis, 59.6%; eczema, 49.5%) than younger children aged less than 10 years (asthma, 46.9%; rhinitis, 39.5%; eczema, 41.9%). Among the seven allergen categories, sensitization to mites had the highest PARs for all three allergic diseases (51.3 to 64.1%), followed by sensitization to foods (asthma, 7.1%; rhinitis, 10.4%; eczema 27.7%). In conclusion, approximately half (46.3 to 50.4%) of Asian children in Taiwan with allergic diseases are attributable to atopy.


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