scholarly journals IgE-AB to animals molecular allergens in patients with respiratory allergy

2015 ◽  
Vol 12 (2) ◽  
pp. 25-28
Author(s):  
M A Mokronosova ◽  
E A Bass ◽  
A M Bala ◽  
T M Zheltikova
Keyword(s):  
House Dust ◽  
Specific Ige ◽  
Respiratory Allergy ◽  
House Dust Mites ◽  
Dust Mites ◽  
Ige Antibodies ◽  
Dust Mite ◽  
Specific Ige Antibodies ◽  
Cat Allergen ◽  
Immunocap Isac

Background. The purpose of this study was to identify IgE-antibodies to the major and minor allergenic components of pets in the blood serum of patients with bronchial asthma and/or allergic rhinitis (BA/AR). Methods. The study included 327 patients from Moscow and St. Petersburg. All of them were detected for specific IgE-antibodies (IgE-AB) to the animal allergens by ImmunoCAP® (ThermoFisherScientific, Sweden). 105 patients wanted to detect IgE-AB to the main animal allergens molecules ImmunoCAP ISAC® (ThermoFisherScientific, Sweden). Results. In the sera of 327 patients IgE-AB to cat’s (62%) allergen dominated. IgE-antibodies to dog’s, house dust mites (D.pteronyssinus, D. farinae), mold fungi, horses and rodents allergens were found in 2,6-31 times less. IgE-AB to uteroglobin (rFel d 1), major cat allergen, was detected in 80% of patients (84/105). The detection rate of IgE-AB to other cat allergens was 4,2-8 times lower (rFel d 2 - 10%, nFel d 4 - 19%). IgE-AB to major dog allergen rCan f 1 was detected in 39% of patients (41/105). Positive level of IgE-AB to other dog allergens was detected in 2,2-4,9 times lower (rCan f 2 - 8%, nCan f 3 - 9%, rCan f 5 - 18%). Positive level of IgE-AB to lipocalin was assayed in 6% of patients, to serum albumin - in 7%. Conclusion. Prevalence of IgE-AB to cat and dog allergens was almost 3 times higher than the frequency of detection of IgE-AB to house dust mite allergens in citizens of Moscow and S. Petersburg. The frequency of IgE-AB to rFel d 1 was dominated and detected 2 and 4-11 times often than to rCan f 1 and other animal allergens consequently.

Serum IgE Levels and Specific IgE Antibodies in House Dust Mite Allergy: Predictive Value

1983 ◽  
Vol 20 (2) ◽  
pp. 93-96 ◽  
Author(s):  
LF. Perrin ◽  
J. Sroussi ◽  
F Cea-Gil ◽  
P. Deviller ◽  
Y. Lasne
Keyword(s):  
House Dust ◽  
House Dust Mite ◽  
Predictive Value ◽  
Specific Ige ◽  
Ige Antibodies ◽  
Serum Ige ◽  
House Dust Mite Allergy ◽  
Mite Allergy ◽  
Dust Mite ◽  
Specific Ige Antibodies

HOUSE DUST MITE ALLERGENS: FROM NATIVE EXTRACTS TO MODIFIED PREPARATIONS

2021 ◽  
Author(s):  
Anna Vasilyeva ◽  
Valentina M. Berzhets ◽  
Nina S. Petrova ◽  
Svetlana V. Khlgatian ◽  
Stanislava Yu. Petrova ◽  
...  
Keyword(s):  
House Dust ◽  
Allergic Diseases ◽  
Specific Ige ◽  
Dermatophagoides Pteronyssinus ◽  
House Dust Mites ◽  
Dust Mites ◽  
Binding Reaction ◽  
Dust Mite ◽  
Allergenic Activity ◽  
Elisa Inhibition

The growth of allergic diseases dictates the need to develop new forms of therapeutic allergens with high immunogenic and low allergenic activity. For many years, our laboratory has been developing drugs for the diagnosis and treatment of house dust mites (HDM) allergies. The purpose of this study is to summarize the results of the five-year development of therapeutic preparations of HDM allergens. During this period, we obtained the following forms of therapeutic allergens: a granular sublingual dosage form of a mixed allergen from Dermatophagoides pteronyssinus (Der.p) and Dermatophagoides farinaе (Der.f) and a succinylated monomeric HDM allergoid Der.p. The physicochemical and immunobiological properties of the obtained preparations were studied by methods: electrophoresis in PAGE in the presence of SDS-sodium, micropoint immunoblot, ELISA, inhibition of the binding reaction of allergen-specific IgE in the sera of patients. The research results showed that the obtained preparations have a reduced allergenic and increased immunogenic activity in comparison with native extracts. The created forms of mite allergens can be further used to treat patients sensitized to HDM of the genus Dermatophagoides.

Sensitivity in allergic asthmatic subjects towards house dust mite allergens

2021 ◽  
Vol 26 (1) ◽  
pp. 75-84
Author(s):  
Amandeep Kaur Dhaliwal ◽  
Devinder Singh ◽  
Ramanpreet Kaur Randhawa ◽  
Atinderpal Singh
Keyword(s):  
Allergic Asthma ◽  
House Dust ◽  
House Dust Mite ◽  
Specific Ige ◽  
Mite Species ◽  
House Dust Mites ◽  
Total Serum ◽  
Dust Mites ◽  
Allergic Asthmatic ◽  
Dust Mite

Asthma is a common problem that affects about 20 million peoples in India and can be often under-diagnosed or misdiagnosed. It can be allergic or non-allergic though the former type is more common and prevalent. Allergic asthma can be triggered by many allergens and house dust mites (HDM) are one of the common indoor allergens. The present study emphasizes the significance of house dust mites in allergic asthmatic subjects which is based on 115 asthmatic subjects in Punjab, India. For the quantification and the estimation of total serum Immunoglobulin E and HDM specific IgE, a mixture of 14 allergens and a mixture of two mite allergens viz. Dermatophagoides pteronyssinus and D. farinae were used respectively. Total and specific IgE levels were detected on ImmunoCAP Phadia 100. A statistically significant correlation between total and HDM specific IgE levels of 115 asthmatic subjects was found as compared to control group of 30 non-allergic individuals. The specific IgE levels of 54.78% subjects against the allergen of two mite species were found to be positive. Dust samples were taken from various localities of the houses to identify the diversity of house dust mites which were responsible for allergic asthma. Five common house dust mite species viz. D. pteronyssinus Trouessart, D. farinae Hughes, D. microceras Griffiths and Cunnington, D. aureliani Fain and Euroglyphus maynei Cooreman were identified from the dust. The present study observed that total IgE levels were higher with higher specific IgE levels against the mixture of two mite allergens viz. D. pteronyssinus and D. farinae in the blood serum.  D. pteronyssinus was the most abundant and prevalent mite species followed by D. farinae. Therefore, present study concluded that HDM specific IgE levels against the mite allergen of D. pteronyssinus and D. farinae in the serum of allergic asthmatic subjects were found to be higher because of the higher prevalence of these two mites (D. pteronyssinus i.e. 69.80% and D. farinae i.e. 20.72%) in the house of allergic asthmatic subjects as compared to other identified mites.

scholarly journals IgE AND IgG antibody responses to Dermatophagoides pteronyssinus in dogs with demodicosis and atopic dermatitis

2020 ◽  
Vol 36 (6) ◽  
Author(s):  
Maria Cecília Oliveira ◽  
Ana Cláudia Arantes Marquez Pajuaba ◽  
José Eugênio Diniz Bastos ◽  
José Roberto Mineo ◽  
Fabiana Parreira Souza ◽  
...  
Keyword(s):  
House Dust ◽  
Skin Diseases ◽  
Specific Ige ◽  
Dermatophagoides Pteronyssinus ◽  
House Dust Mites ◽  
Dust Mites ◽  
Ige Antibodies ◽  
Ige Binding ◽  
Healthy Dogs ◽  
Demodex Mites

Canine demodicosis is a common inflammatory parasitic skin disease caused by Demodex mites. House dust mites, such as Dermatophagoides spp., play an important role in the pathogenesis of canine atopic dermatitis (AD). The goal of this experimental work was to investigate whether demodectic dogs could be previously exposed/sensitized to house dust mites’ antigens. First the prevalence of demodicosis in a southeastern region of Brazil was investigated by analyzing clinical files of dogs that were admitted to a Veterinary Hospital. Subsequently, the IgG responses to Dermatophagoides pteronyssinus (Dp) and Dermatophagoides farinae (Df) and IgE to D. pteronyssinus (Dp) were evaluated in two groups, AD or demodicosis dogs. Additionally, the major IgE-binding Dp proteins that are recognized by sera from dogs with demodicosis and AD were evaluated. A total of 2,599 clinical files were analyzed to identify the major parasitic skin diseases in dogs from this region, considering the age, sex and breed of the animals. The epidemiological study identified 111 animals with skin diseases; from these 20.7% presented demodicosis. Afterwards, serum samples were obtained from another groups of demodicosis, AD, and healthy dogs, and analyzed for Dp and Df-specific IgG, and IgE antibody levels, Dp IgG avidity by ELISA and IgE-binding Dp-specific proteins by immunoblot. IgG and IgE antibodies to Dp were detected in sera from additional groups of dogs with AD, demodicosis or healthy, with higher IgE levels to Dp in AD than demodectic or healthy dogs. IgG to Df was detected, despite with smaller levels compared to Dp in sera from demodectic dogs, and also in healthy dogs. Immunoblot showed IgE-binding to Dp proteins in sera of dogs with demodicosis and AD; with strong reactivity for the 72 and 116 kDa antigens detected by sera from demodicosis dogs. However, sera from healthy dogs >12 months old also presented reactivity to these bands. In conclusion, the detection of Dp-IgG and IgE antibodies in sera from demodectic dogs indicates previous exposure and sensitization to the house dust mite, respectively, more than cross-reactivity between demodex mites and Dp antigens detected by canine antibodies. Additionally, higher Dp-specific IgE levels were found in dogs with AD compared with those with demodicosis or healthy, suggesting that Dp-specific IgE could better discriminate dogs with AD from healthy ones or even those with demodicosis.

scholarly journals House Dust Mites in One of Indonesian Detention Center in 2020

Biomedika ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 98-103
Author(s):  
Ajrina Malia ◽  
Makhabbah Jamilatun ◽  
Aminah Aminah
Keyword(s):  
House Dust ◽  
Descriptive Study ◽  
Dermatophagoides Pteronyssinus ◽  
House Dust Mites ◽  
Dust Mites ◽  
Dermatophagoides Farinae ◽  
Detention Center ◽  
Home Furnishings ◽  
Dust Mite ◽  
Flotation Method

House dust mite was one of the most common allergens in homes around the world and associated with manifestations of allergies of skin and respiratory tract such as bronchial asthma, allergic rhinitis, and atopic dermatitis. This arthropod was commonly found on carpets, mattresses, children's toys, and other home furnishings. This study was aimed to identify and quantify the number of Dermatophagoides spp in Detention Center. This descriptive study was conducted using flotation method on 52 samples of mattress dust collected in February 2020. The results showed that 49 out of 52 mattress dust samples were positive of Dermatophagoidesspp..Of all Dermatophagoides spp, there were Dermatophagoides pteronyssinus (71.2%) and Dermatophagoides farinae (28.8%). In conclusion, this study found two species of Dermatophagoides spp. in Detention Center and suggested that the fascility maintain the cleanliness of the mattress by drying the mattress and changing the sheets at least once a week.

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