Assessment of serum levels of allergen-specific immunoglobulin E in different seasons and breeds in healthy horses

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 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.


2018 ◽  
Author(s):  
Mitchell H. Grayson ◽  
Peter Mustillo

The incidence of allergic diseases, like asthma, allergic rhinitis, and food allergy, is increasing in Westernized countries. This chapter discusses the importance of taking a careful and focused history and physical examination, as well as the laboratory studies that can be used to demonstrate the presence of allergic sensitization. Treatment for allergic disease is discussed, with an emphasis on new biologic therapies that have been developed. Finally, the chapter explores relatively new studies on the potential for interventions to prevent food allergy.  Allergy is defined as an untoward physiologic event mediated by immune mechanisms, usually involving the interaction between an allergen and the allergic antibody, immunoglobulin E (IgE). Allergic reactions typically occur due to exposure to either airborne allergens, foods, drugs, chemicals, or Hymenoptera (such as wasps, bees and fire ants). Allergies manifest in numerous ways, including allergic asthma, allergic rhinoconjunctivitis, urticaria, eczema, and in its most severe form, anaphylaxis. This review contains 4 videos, 5 figures, 4 tables and 42 references Key Words: Delayed allergic reaction (Alpha-gal), Allergy diagnosis, Measurement of specific IgE, Allergy and asthma therapies, Anticytokine therapy (dupilumab, mepolizumab, reslizumab), AntiIgE therapy (omalizumab), Allergy skin testing, Basophil histamine release assay


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.


Nutrients ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 2837
Author(s):  
Hiromi Tanabe ◽  
Kenichi Sakurai ◽  
Yumiko Nakanishi ◽  
Tamotsu Kato ◽  
Yohei Kawasaki ◽  
...  

Chemokine (C-C motif) ligand 17 (CCL17) is a pro-allergic factor: high CCL17 levels in cord blood (CB) precede later allergic predisposition. Short-chain fatty acid (SCFA) treatment during pregnancy has been shown to protect mouse pups against allergic diseases. The maternal microbial metabolome during pregnancy may affect fetal allergic immune responses. We therefore examined the associations between CB CCL17 and gut SCFA levels in healthy pregnant Japanese women. CB CCL17 serum levels at birth, and maternal non-specific IgE levels in maternal sera at 32 weeks of gestation were measured. Maternal stool samples were collected at 12 (n = 59) and 32 (n = 58) weeks of gestation for gut microbiota analysis, based on barcoded 16S rRNA sequencing and metabolite levels. The CB CCL17 levels correlated negatively with butyrate concentrations and positively with isobutyrate at 12 weeks; CB CCL17 correlated positively with valerate and lactate at 32 weeks. Similarly, butyrate levels correlated negatively with maternal non-specific IgE levels, whereas the lactate concentration correlated positively with IgE levels. At 32 weeks, the Shannon diversity index (SDI) of Firmicutes and Proteobacteria correlated negatively with CB CCL17 levels, while those of the total microbiota correlated positively with the CB CCL17 levels. These metabolites may alter fetal immune responses. This study provides the first link between maternal metabolites during pregnancy and the risk of allergic diseases in human offspring.


Cells ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 994 ◽  
Author(s):  
Julia Eckl-Dorna ◽  
Sergio Villazala-Merino ◽  
Nicholas James Campion ◽  
Maria Byazrova ◽  
Alexander Filatov ◽  
...  

Immunoglobulin E (IgE) is the key immunoglobulin in the pathogenesis of IgE associated allergic diseases affecting 30% of the world population. Recent data suggest that allergen-specific IgE levels in serum of allergic patients are sustained by two different mechanisms: inducible IgE production through allergen exposure, and continuous IgE production occurring even in the absence of allergen stimulus that maintains IgE levels. This assumption is supported by two observations. First, allergen exposure induces transient increases of systemic IgE production. Second, reduction in IgE levels upon depletion of IgE from the blood of allergic patients using immunoapheresis is only temporary and IgE levels quickly return to pre-treatment levels even in the absence of allergen exposure. Though IgE production has been observed in the peripheral blood and locally in various human tissues (e.g., nose, lung, spleen, bone marrow), the origin and main sites of IgE production in humans remain unknown. Furthermore, IgE-producing cells in humans have yet to be fully characterized. Capturing IgE-producing cells is challenging not only because current staining technologies are inadequate, but also because the cells are rare, they are difficult to discriminate from cells bearing IgE bound to IgE-receptors, and plasma cells express little IgE on their surface. However, due to the central role in mediating both the early and late phases of allergy, free IgE, IgE-bearing effector cells and IgE-producing cells are important therapeutic targets. Here, we discuss current knowledge and unanswered questions regarding IgE production in allergic patients as well as possible therapeutic approaches targeting IgE.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Zhang Xu-De ◽  
Guo Bei-Bei ◽  
Wang Xi-Juan ◽  
Li Hai-Bo ◽  
Zhang Li-Li ◽  
...  

Background. Immunoglobulin E (IgE) is the most important promoter of allergic inflammation. However, there are few systematic studies on IgE in age range, genders, disease spectrum, and time regularity. Aim. To screen the common allergens, allergen spectrum, and IgE difference between type 2 inflammatory allergic diseases and other allergic diseases in Weifang, China. Methods. A retrospective study was performed by estimating patients’ clinical data suffering from allergic diseases (urticaria, pollinosis, allergic rhinitis, atopic dermatitis, and bronchial asthma) between May 2019 and April 2020 using an allergen detection kit of Macro-Union Pharmaceutical. Results. 732 of the 1367 patients showed different antigen positive, and the positive rate was 53.5%. The most common allergens were dust mites, mixed fungi, Artemisia pollen, cat/dog dander, and cockroaches. There were 27.0% (369/1367) of the patients with single positive allergen-specific IgE (sIgE), 26.5% (363/1367) with multiple-positive IgE. The total immunoglobulin E (tIgE) levels varied with gender, age, and type of disease. There was a difference in the distribution of allergens between children and adults. A positive correlation between the serum-specific IgE and the corresponding local inhaled allergen density was observed. Conclusions. In this study, we found that type 2 inflammatory allergic diseases have higher serum IgE and a higher probability of inhaled sIgE positive. According to age, gender, and condition, serological IgE detection of allergens provides new insight into the early diagnosis and prevention of allergic diseases.


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 ◽  
...  

Author(s):  
Mohamed Shamji ◽  
Rudolf Valenta ◽  
Theodore Jardetzky ◽  
Valerie Verhasselt ◽  
Stephen Durham ◽  
...  

Immunoglobulin E (IgE)-mediated allergy is the most common hypersensitivity disease affecting more than 30% of the population. In genetically-predisposed subjects exposure to minute quantities of allergens leads to the production of IgE antibodies which is termed allergic sensitization and mainly occurs in early childhood. Allergen-specific IgE then binds to the high (FcRI) and low affinity receptors (FcRII, also called CD23) for IgE on effector cells and antigen-presenting cells, respectively. Subsequent and repeated allergen exposure increases allergen-specific IgE levels and, by receptor cross-linking, triggers immediate release of inflammatory mediators from mast cells and basophils whereas IgE-facilitated allergen presentation perpetuates T cell-mediated allergic inflammation. Due to engagement of receptors which are highly selective for IgE even tiny amounts of allergens can induce massive inflammation. Naturally occurring allergen-specific IgG and IgA antibodies usually recognize different epitopes on allergens compared to IgE, and do not efficiently interfere with allergen-induced inflammation. However IgG and IgA antibodies to these important IgE epitopes can be induced by allergen-specific immunotherapy or by passive immunization. These will lead to competition with IgE for binding with the allergen and prevent allergic responses. Similarly, anti-IgE treatment does the same by preventing IgE from binding to its receptor on mastcells and basophils. Here we review the complex interplay of allergen-specific IgE, IgG and IgA and the corresponding cell receptors in allergic diseases and its relevance for diagnosis, treatment and prevention of allergy.


Author(s):  
Mohamed Shamji ◽  
Rudolf Valenta ◽  
Theodore Jardetzky ◽  
Valerie Verhasselt ◽  
Stephen Durham ◽  
...  

Immunoglobulin E (IgE)-mediated allergy is the most common hypersensitivity disease affecting more than 30% of the population. In genetically-predisposed subjects exposure to minute quantities of allergens leads to the production of IgE antibodies which is termed allergic sensitization and mainly occurs in early childhood. Allergen-specific IgE then binds to the high (FcRI) and low affinity receptors (FcRII, also called CD23) for IgE on effector cells and antigen-presenting cells, respectively. Subsequent and repeated allergen exposure increases allergen-specific IgE levels and, by receptor cross-linking, triggers immediate release of inflammatory mediators from mast cells and basophils whereas IgE-facilitated allergen presentation perpetuates T cell-mediated allergic inflammation. Due to engagement of receptors which are highly selective for IgE even tiny amounts of allergens can induce massive inflammation. Naturally occurring allergen-specific IgG and IgA antibodies usually recognize different epitopes on allergens compared to IgE, and do not efficiently interfere with allergen-induced inflammation. However IgG and IgA antibodies to these important IgE epitopes can be induced by allergen-specific immunotherapy or by passive immunization. These will lead to competition with IgE for binding with the allergen and prevent allergic responses. Similarly, anti-IgE treatment does the same by preventing IgE from binding to its receptor on mastcells and basophils. Here we review the complex interplay of allergen-specific IgE, IgG and IgA and the corresponding cell receptors in allergic diseases and its relevance for diagnosis, treatment and prevention of allergy.


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