scholarly journals Egg allergy in atopic dermatitis patients-analysis of results of specific extract IgE and specific IgE to molecular components. Bird-egg syndrome

2021 ◽  
Vol 32 (1) ◽  
pp. 265-282
Author(s):  
Jarmila Čelakovská ◽  
J. Bukač ◽  
R. Vaňková ◽  
J. Krejsek ◽  
I. Krcmova ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Specific Ige ◽  
Egg Allergy ◽  
Analysis Of Results ◽  
Molecular Components

scholarly journals Analysis of Results of Specific IgE in 100 Atopic Dermatitis Patients with the Use of Multiplex Examination ALEX2—Allergy Explorer

2021 ◽  
Vol 22 (10) ◽  
pp. 5286
Author(s):  
Jarmila Čelakovská ◽  
Josef Bukač ◽  
Eva Cermákova ◽  
Radka Vaňková ◽  
Hana Skalská ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Arginine Kinase ◽  
Specific Ige ◽  
Protein Domain ◽  
Storage Mites ◽  
Fel D 1 ◽  
Analysis Of Results ◽  
Can F 1 ◽  
High Level ◽  
Molecular Components

Background and aim: Progress in laboratory diagnostics of IgE-mediated allergy is the use of component-resolved diagnosis. Our study analyses the results of specific IgE to 295 allergen reagents (117 allergenic extracts and 178 molecular components) in patients suffering from atopic dermatitis (AD) with the use of ALEX2 Allergy Explorer. Method: The complete dermatological and allergological examination, including the examination of the sensitization to molecular components with ALEX2 Allergy Explorer testing, was performed. The statistical analysis of results was performed with these methods: TURF (total unduplicated reach and frequency), best reach and frequency by group size, two-sided tests, Fisher’s exact test, and chi-square test (at an expected minimum frequency of at least 5). Results: Altogether, 100 atopic dermatitis patients were examined: 48 men, 52 women, the average age 40.9 years, min. age 14 years, max. age 67 years. The high and very high level of specific IgE was reached in 75.0% of patients to 18 molecular components: from PR-10 proteins (Aln g 1, Bet v 1, Cor a1.0103, Cor a1.0401, Fag s 1), lipocalin (Can f 1), NPC2 family (Der f 2, Der p 2), uteroglobin (Fel d 1), from Alternaria alternata (Alt a 1), Beta expansin (Lol p 1, Phl p 1), molecular components from Timothy, cultivated rye (Secc pollen) and peritrophin-like protein domain Der p 23. The high and very high level of specific IgE to other lipocalins (Fel d 7, Can f 4), to arginine kinase (Bla g 9, German cockroach), and to allergen extracts Art v (mugwort), and Cyn d (Bermuda grass) reached 52.0% of patients. The severity of AD is in significant relation to the sensitization to molecular components of storage mites (Gly d 2, Lep d 2—NPC2 family), lipocalins (Can f 1, Can f 2, Can f 4, and Can f 6), arginine kinase (Asp f 6, Bla g 9, Der p 20, Pen m 2), uteroglobin (Fel d 1, Ory c 3), Mn superoxide dismutase (Mala s 11), PR-10 proteins (Fag s 1, Mal d 1, Cor a 1.0401, Cor a 1.0103), molecular components of the peritrophin-like domain (Der p 21, Der p 23), and to Secc pollen. In the subgroup of patients suffering from bronchial asthma, the significant role play molecular components from house dust mites and storage mites (Lep d 2, Der p 2, Der f 2—NPC2 family), cysteine protease (Der p 1), peritrophin-like protein domain (Der p 21, Der p 23), enolase from Alternaria alternata (Alt a 6), and Beta expansin Phl p 1. Conclusion: The results of our study demonstrate the detailed profile of sensitization to allergens reagents (allergen extract and molecular components) in patients with atopic dermatitis. We show the significance of disturbed epidermal barrier, resulting in increased penetration of allergens. We confirmed the significant relationship between the severity of AD, the occurrence of bronchial asthma and allergic rhinitis, and high levels of specific IgE to allergen reagents. Our results may be important for regime measures and immunotherapy; Der p 23 shall be considered as an essential component for the diagnosis and specific immunotherapy of house dust mite allergy.

scholarly journals Atopic Dermatitis and Sensitisation to Molecular Components of Alternaria, Cladosporium, Penicillium, Aspergillus, and Malassezia—Results of Allergy Explorer ALEX 2

2021 ◽  
Vol 7 (3) ◽  
pp. 183
Author(s):  
Jarmila Celakovska ◽  
Radka Vankova ◽  
Josef Bukac ◽  
Eva Cermakova ◽  
Ctirad Andrys ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
Atopic Dermatitis ◽  
Bronchial Asthma ◽  
Specific Ige ◽  
Severe Form ◽  
Laboratory Diagnostics ◽  
Ige Mediated ◽  
High Level ◽  
Molecular Components ◽  
Very High

Progress in laboratory diagnostics of IgE-mediated allergies is being made through the use of component-resolved diagnosis. The aim of our study is to analyze the sensitization profile to allergen reagents in patients suffering from atopic dermatitis with the use of the ALEX 2–Allergy Explorer and especially to show the sensitization to molecular components of molds and yeast. The complete dermatological and allergological examination including the examination of the sensitization to allergen reagents with Allergy Explorer ALEX 2 testing was performed. The relation between the sensitization to molecular components of molds and yeast and the severity of atopic dermatitis, and the occurrence of bronchial asthma and allergic rhinitis was evaluated. Altogether, 100 atopic dermatitis patients were examined—48 men and 52 women, with an average age of 40.9 years. The sensitization to Mala s 6, Mala s 11, Sac c, Asp f 6, Cla h and Cla h 8 correlates to the severity of atopic dermatitis. The sensitization to Sac c, Alt a 6, Cla h, Cla h 8 was observed significantly more frequently in patients suffering from bronchial asthma to Mala s 6 in patients suffering from allergic rhinitis. In patients with severe form of atopic dermatitis (AD), a very high level of specific IgE was recorded to Mala s 11 (in 36%) and to Asp f 6 (in 12%).

scholarly journals Sensitization to Molecular Components in 104 Atopic Dermatitis Patients in Relation to Subgroups of Patients Suffering from Bronchial Asthma and Allergic Rhinitis

2020 ◽  
Vol 63 (4) ◽  
pp. 164-175
Author(s):  
Radka Vaňková ◽  
Jarmila Čelakovská ◽  
Josef Bukač ◽  
Irena Krčmová ◽  
Jan Krejsek ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
Atopic Dermatitis ◽  
Bronchial Asthma ◽  
Specific Ige ◽  
Severe Form ◽  
Test Results ◽  
Atopic March ◽  
Specific Ige Antibodies ◽  
The Difference ◽  
Molecular Components

Background: Atopic dermatitis (AD) is a chronic inflammatory skin disease. The progression from AD to bronchial asthma (AB) and allergic rhinitis (AR) is called atopic march. The aim of this study was to evaluate the difference in the sensitization to molecular components in patients suffering from AD in relation to subgroups of patients with AR and AB. Material and Methods: The complete dermatological and allergological examinations were performed. Specific IgE antibodies against 112 molecular components were measured with the multiplex ImmnoCAP ISAC test. Results: Altogether 104 atopic dermatitis patients (50 men, 54 women) at the average age 40.1 years were examined. The sensitization to molecular components was confirmed in 93.3% of patients. The sensitization to components of mites, grasses, trees, animals, moulds, and shrimps was significantly more frequent in patients with severe form of AD and the sensitization to components of grasses, trees, and moulds was significantly higher in subgroup of patients with AB. In subgroup of patients suffering from AR the higher occurrence of pollen-derived and pollen-food derived PR-10 proteins, grasses, mites, and animals was observed also. Conclusions: We have confirmed the significant differences in the sensitization to molecular components in patients suffering from severe form of AD, and in subgroups of patients suffering from AB and AR. These molecular components may play the important role in the consecutive development of different allergy pathologies called atopic march.

Racial Differences In The Relationship Of Total and Food-Specific IgE To Atopic Dermatitis In Childhood

2014 ◽  
Vol 133 (2) ◽  
pp. AB196
Author(s):  
Gillian Bassirpour ◽  
Edward M. Zoratti ◽  
Ganesa Wegienka ◽  
Suzanne Havstad ◽  
Alexandra Sitarik ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Racial Differences ◽  
Specific Ige ◽  
Food Specific Ige ◽  
Relationship Of ◽  
The Relationship

scholarly journals Component resolved diagnosis of egg yolk is an indispensable part of egg allergy

2021 ◽  
Vol 49 (2) ◽  
pp. 6-14
Author(s):  
Huang Lunhui ◽  
Shao Yanhong ◽  
Li Shaoshen ◽  
Bao Huijing ◽  
Liu Yunde ◽  
...  
Keyword(s):  
Operating Characteristic ◽  
Egg Yolk ◽  
Specific Ige ◽  
Diagnostic Value ◽  
Egg White ◽  
Enzyme Linked Immunosorbent Assay ◽  
Egg Allergy ◽  
Component Resolved Diagnosis ◽  
Allergen Components

Introduction and objectives: It was urgent to explain the role of egg yolk allergen sensitization to the egg allergic population and we would evaluate the diagnostic value of allergen components in whole eggs, including egg white and egg yolk.Materials and methods: Firstly, we collected 99 positive and 21 negative sera against egg allergy. Then we used modified enzyme linked immunosorbent assay (ELISA) to survey specific IgE (sIgE) to all-proven and single component in eggs, Ovomucoid (Gal d 1), Ovalbumin (Gal d 2), Ovotransferrin (Gal d 3), Lysozyme C (Gal d 4), Serum Albumin (Gal d 5), and YGP42(Gal d 6) in allergic and non-allergic populations. Last but not least, we studied the sIgE reactivities to egg allergen components by receiver operating characteristic (ROC) analysis.Results: Among egg-allergic individuals, nearly 10% were sensitized to five of six egg allergen components, and the cross-reaction frequency between two egg yolk allergens with Gal d 1 was about 30% in the groups diagnosed with egg allergy or non-allergy. The best component-combination diagnosis in egg allergy of Gal d 1+ Gal d 6 demonstrated the largest area under curve (AUC) of 0.994.Conclusions: Our results suggested that there were individual differences in allergenicity of different egg allergen components, especially in the samples negative to egg allergy diagnosed but sensitive to egg yolk components. It was indicated that component resolved diagnosis of egg yolk improved the value for egg allergy management indispensably.

scholarly journals CLINICAL SIGNIFICANCE OF DETERMINATION OF IGE ANTIBODIES TO STAPHYLOCOCCUS AUREUS AND MALASSEZIA SPECIES IN SERUM OF CHILDREN WITH ATOPIC DERMATITIS

2018 ◽  
Vol 63 (4) ◽  
pp. 84-88
Author(s):  
T. S. Okuneva ◽  
M. V. Kushnareva ◽  
A. N. Pampura ◽  
E. E. Varlamov ◽  
N. G. Konyukova
Keyword(s):  
Staphylococcus Aureus ◽  
Atopic Dermatitis ◽  
Clinical Significance ◽  
Specific Ige ◽  
Frequency Of Occurrence ◽  
Ige Antibodies ◽  
Malassezia Species ◽  
Specific Ige Antibodies ◽  
Malassezia Spp

We studied the frequency of occurrence and concentration of allergen-specific IgE antibodies (asIgE) to enterotoxins A, B, C and TSST-1 of Staphylococcus aureus and Malassezia spp. in the serum of children with atopic dermatitis in the acute period of the disease. The determination of asIgE levels was performed in 84 children aged from 5 months to 17 years using the immunochemiluminescent method on the UniCAP 100 analyzer (Phadia, Sweden). The level of asIgE was evaluated on a scale of 6 classes.The sensitization to S. aureus enterotoxins was detected in 29 children with аsIgE concentration from 0.35 to 25.8 kU/L (I–IV classes). In 16 children were observed 8 polysensitization options to S. aureus allergens. Combinations of asIgE to A + B and A + B + C enterotoxins were most common – in every fourth and fifth child,respectively. Sensitization to Malassezia spp. was observed in 41 children with concentration from 0.38 to 98.9 KU/L (I–V classes). Polysensitization to both S. aureus and Malassezia spp. allergens was observed in one of two children. A higher degree of sensitisation to Malassezia spp allergens has been established compared to S. aureus.Conclusion. To improve the specific diagnostics of atopic dermatitis, it is advisable to examine the serum for a complete panel of recombinant S. aureus enterotoxins in combination with the determination of asIgE to Malassezia spp. 

scholarly journals Prevention of Transcutaneous Sensitization to Cow Milk Proteins in Infants with Atopic Dermatitis: Cohort Study

2020 ◽  
Vol 19 (6) ◽  
pp. 538-544
Author(s):  
Nikolay N. Murashkin ◽  
Svetlana G. Makarova ◽  
Stepan G. Grigorev ◽  
Dmitri V. Fedorov ◽  
Roman A. Ivanov ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Maintenance Therapy ◽  
Milk Proteins ◽  
Allergic Diseases ◽  
Specific Ige ◽  
Dispersion Analysis ◽  
Cow Milk ◽  
Group 2 ◽  
Group 1

Background. Malformations in epidermal barrier in children with atopic dermatitis (AD) can cause transcutaneous sensitization with further development of allergic diseases that can worsen the AD course and significantly reduces patients’ quality of life.Objective. The aim of the study was to determine the effect of topical treatment and maintenance therapy with pimecrolimus 1% cream (PIM) and topical glucocorticosteroids (tGCS) in infants with AD on reducing the risk of developing transcutaneous sensitization (due to the levels of specific IgE to the cow milk protein over time) and on reducing the disease severity (by the EASI scale).Methods. The study included children aged from 1 to 4 months with early manifestations of moderate and severe AD. The severity of AD was estimated via the EASI scale at start of observation, then at 6, 9 and 12 months of life. The class and level of specific IgE to cow milk proteins (CMP) were determined by the ImmunoCAP method at the point of enrolment and at the ages of 6 and 12 months. Statistical analysis of studied indicators dynamics and their comparison in research groups was carried out using multifactorial dispersion analysis.Results. The study included 36 patients. All patients have received standard tGCS therapy in combination with emollients (wet wrap) for 10 days. The maintenance therapy was prescribed in postacute period. It included topical calcineurin inhibitor PIM 2 times/day for 3 months, then double application (morning/evening) 3 times/week up to the age of 1 year old (group 1). Other group had maintenance therapy — tGCS2 times/week for 3 months, and then at AD aggravation (group 2). Group 1 has shown lower level of sensitization to CMP at the age of 6 and 12 months and more significant decrease in AD severity according to EASI scale compared to group 2.Conclusion. The treatment with PIM is effective in therapy of AD and prevention of transcutaneous sensitization in infants.

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