scholarly journals Unusual Lysozyme-induced anaphylaxis in an egg-allergic child

2021 ◽  
Author(s):  
Charles Elbany ◽  
Delphine De Boissieu ◽  
CHANTAL KARILA ◽  
Marie-Alexandra Alyanakian ◽  
Claude PONVERT ◽  
...  
Keyword(s):  
Specific Ige ◽  
Over The Counter ◽  
Positive Skin ◽  
Allergenic Protein ◽  
Sublingual Tablet ◽  
Drug Products ◽  
Allergic Child ◽  
Egg Protein ◽  
Skin Prick Tests ◽  
A Minor

A nine-year-old egg allergic child developed anaphylaxis after ingesting the lysozyme-containing over-the-counter-drug Lysopaine®. He complained of a sore throat without fever or cough. His mother administered him one sublingual tablet of the over-the-counter drug Lysopaine®, containing 20 mg lysozyme hydrochloride. A few minutes after intake of the drug, he developed anaphylaxis and received 300 mg intramuscular epinephrine. HE was not exposed to other allergens. The responsibility of lysozyme was confirmed by positive skin prick tests for Lysopaïne® and the presence of specific IgE against lysozyme. When giving this treatment to her son, his mother had no idea that it could contain egg protein and she did not perceive lysozyme as an allergenic protein. However, the box mentioned the presence of lysozyme and also specified “contains lysozyme extracted from egg”. Lysozyme, a minor egg allergen, may induce anaphylaxis in egg-allergic patients. Lysozyme can be found in many commonly consumed industrial food and drug products and its labelling may be misleading. Our observation highlights the importance of properly educating allergic patients to recognize allergens, even minor ones.

Maternal Avoidance of Eggs, Cow's Milk, and Fish During Lactation: Effect on Allergic Manifestations, Skin-Prick Tests, and Specific IgE Antibodies in Children at Age 4 Years

PEDIATRICS ◽  
1992 ◽  
Vol 89 (4) ◽  
pp. 735-739
Author(s):  
Nele Sigurs ◽  
Gunnar Hattevig ◽  
Bengt Kjellman
Keyword(s):  
Specific Ige ◽  
Normal Diet ◽  
Cow’S Milk ◽  
Positive Skin ◽  
Ige Antibodies ◽  
Cow's Milk ◽  
Number Of Children ◽  
Specific Ige Antibodies ◽  
Skin Prick Tests ◽  
Allergic Manifestations

Two matched groups of children with a family history of atopy/allergy were observed from birth. In one group (n = 65) the mothers had a diet free from eggs, cow's milk, and fish during the first 3 months of lactation, whereas the mothers in the other group (n = 50) had a normal diet. Atopic/allergic manifestations, skin-prick tests, and specific IgE antibodies to egg white and cow's milk during the first 18 months of life have been reported previously. At 4 years of age the children underwent a clinical examination, skin-prick tests, and determination of specific IgE antibodies in serum against certain food and inhalant allergens. Both the cumulative incidence and the current prevalence of atopic dermatitis were significantly lower in the group of children whose mothers had adhered to a hypoallergenic diet during lactation, whereas all other atopic manifestations were similar. The number of children with positive skin-prick tests and specific IgE antibodies did not differ significantly, but the number of positive skin-prick tests and specific IgE antibody reactions in serum was significantly lower in the children of mothers adhering to the diet, indicating a milder degree of sensitization in these children.

scholarly journals Skin prick test reactivity in atopic children and their number of siblings

2015 ◽  
Vol 55 (4) ◽  
pp. 189
Author(s):  
Beatrix Siregar ◽  
Lily Irsa ◽  
Supriatmo Supriatmo ◽  
Sjabaroeddin Loebis ◽  
Rita Evalina
Keyword(s):  
Skin Prick Test ◽  
Specific Ige ◽  
Cross Sectional Study ◽  
Chi Square ◽  
Cross Sectional ◽  
Positive Skin ◽  
Prick Test ◽  
Group I ◽  
History Of ◽  
Skin Prick Tests

Background Some studies have shown that low birth order is a risk factor for developing atopy, although these results remain inconclusive. Those studies put forth the hygiene hypothesis, which states that early childhood infections in siblings may protect against atopy. Hence, an inverse relationship between family numbers and atopy was found. Atopy may be diagnosed from a history of atopy in an individual or his family, and can be confirmed by specific IgE for allergens or positive skin prick tests.Objective To assess for an association between skin prick test reactivity in atopic children and their number of siblings.Methods A cross-sectional study was conducted in May to June 2010 in elementary school children at the Kampung Baru District, Medan Regency, North Sumatera. Subjects were divided into two groups. Group I had children with < 3 siblings and group II had children with ≥ 3 siblings. Skin prick tests were done in 7 to 10-year-old children with a history of asthma, allergic rhinitis and atopic dermatitis. Skin prick test reactivity results were analyzed by Chi-square test.Results A total of 192 subjects were enrolled in this study, with 96 subjects in each group. Positive skin prick tests were significantly higher in subjects with <3 siblings than in those with >3 siblings (75% and 53.1%, respectively; P=0.003).Conclusion Atopic children with <3 siblings had more positive skin prick tests than children with >3 siblings.

scholarly journals The impact of age on prevalence of positive skin prick tests and specific IgE tests

2011 ◽  
Vol 105 (5) ◽  
pp. 651-658 ◽  
Author(s):  
Nicola Scichilone ◽  
Adriana Callari ◽  
Giuseppe Augugliaro ◽  
Margherita Marchese ◽  
Alkis Togias ◽  
...  
Keyword(s):  
Specific Ige ◽  
Positive Skin ◽  
Skin Prick Tests ◽  
The Impact

scholarly journals Detection of IgE-antibodies to recombinant birch allergens rBet v 1 and rBet v 2 in patients withsensitization to birch pollen

2011 ◽  
Vol 8 (4) ◽  
pp. 45-48
Author(s):  
M A Mokronosova ◽  
A V Sergeev ◽  
E S Korovkina ◽  
N G Konyukova ◽  
M A Mokronosova ◽  
...  
Keyword(s):  
Birch Pollen ◽  
Clinical History ◽  
Specific Ige ◽  
Skin Tests ◽  
Recombinant Allergen ◽  
Antibody Testing ◽  
Positive Skin ◽  
Ige Antibodies ◽  
Birch Tree ◽  
Skin Prick Tests

Background. Allergic diagnosis is based on accurate clinical history and conducting of skin prick tests (sPt) and specific IgE determination. the past decade recombinant allergen components from pollen of birch are available for allergen-specific IgE antibody testing. the major allergen of birch tree pollen is Bet v 1; Bet v 2 is a well described minor allergen. Methods. 83 patients with birch pollinosis (55 male/28 female, age 4-35 years, mean 15,5) were observed. specific IgE levels were determined by using the ImmunoCap (Phadia, sweden); skin prick tests with standard aeroallergens panel was used. Results. All 83 patients had positive skin tests to birch pollen. the levels of specific IgE to rBet v1 had 87,9% of patients, sIgE to rBet v 2 (profilin) 14,5% of patients, sIgE to rBet v 1 and rBet v 2 13,3% of patients. Conclusion. the prevalence of the patients with presence of IgE - antibodies to profiling Bet v2 among citizens of moscow region, sensitized to birch, accounts 14,5%.

scholarly journals Clinical utility of immunological methods based on the singleplex and multiplex ImmunoCap systems for diagnosis of shrimp allergy

2021 ◽  
Vol 49 (4) ◽  
pp. 030006052110065
Author(s):  
Natalia Ukleja-Sokołowska ◽  
Kinga Lis ◽  
Magdalena Żbikowska-Gotz ◽  
Rafał Adamczak ◽  
Andrzej Kuźmiński ◽  
...  
Keyword(s):  
Quantitative Methods ◽  
Specific Ige ◽  
House Dust Mites ◽  
Immunological Methods ◽  
Positive Skin ◽  
Allergen Components ◽  
Highly Sensitive ◽  
Der P 1 ◽  
Skin Prick Tests ◽  
Immunocap Isac

Background Levels of specific IgE (sIgE) against allergen components can be assessed using multiplex assays or with highly sensitive, quantitative methods. The aim of this study was to compare the sensitivity and specificity of different immunological methods for diagnosis of shrimp allergy. Methods Twenty patients with positive skin prick tests for frozen tiger shrimp were selected for further examination. Blood samples were taken to assess concentrations of sIgE against the house dust mites Dermatophagoides pteronyssinus and D. farinae, shrimp allergen extract, allergen components Der p 1, Der p 2 and Pan a 1 (ImmunoCap), and the ImmunoCap ISAC 112 panel. Results All patients had elevated levels of sIgE against shrimp and D pteronyssinus. Eight patients were sensitized to Pen m 1, three patients were sensitized to Pen m 2, and two patients were sensitized to Pen m 4 (ISAC). ImmunoCap ISAC detected shrimp sensitization in 50% of patients. There was a strong correlation between concentrations of sIgE against Pen m1 and Der p 10 detected by ImmunoCap. Conclusions The singleplex ImmunoCap system remains the reference diagnostic method, but in the case of shrimp allergy ImmunoCap ISAC provided better insight into patient allergen profiles.

CORRELATION OF SERUM SPECIFIC IGE AND SKIN PRICK TESTS IN CHILDREN WITH RESPIRATORY ALLERGY

2011 ◽  
Author(s):  
Esen Demir ◽  
Levent Midyat ◽  
Figen Gulen ◽  
Gulhadiye Akbas ◽  
Sema Tanrıverdi ◽  
...  
Keyword(s):  
Specific Ige ◽  
Respiratory Allergy ◽  
Skin Prick Tests

scholarly journals Addressing Common Misconceptions in Food Allergy: A Review

Children ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 497
Author(s):  
Aikaterini Anagnostou
Keyword(s):  
Food Allergy ◽  
The United States ◽  
Specific Ige ◽  
Oral Immunotherapy ◽  
Food Allergies ◽  
Allergy Prevention ◽  
Diagnosis And Management ◽  
Skin Prick Tests ◽  
Food Specific Ige ◽  
Common Misconceptions

Background: Food allergies are common, affecting 1 in 13 school children in the United States and their prevalence is increasing. Many misconceptions exist with regards to food allergy prevention, diagnosis and management. Objective: The main objective of this review is to address misconceptions with regards to food allergies and discuss the optimal, evidence-based approach for patients who carry this diagnosis. Observations: Common misconceptions in terms of food allergy prevention include beliefs that breastfeeding and delayed introduction of allergenic foods prevent the development of food allergies. In terms of diagnosis, statements such as ‘larger skin prick tests or/and higher levels of food-specific IgE can predict the severity of food-induced allergic reactions’, or ‘Tryptase is always elevated in food-induced anaphylaxis’ are inaccurate. Additionally, egg allergy is not a contraindication for receiving the influenza vaccine, food-allergy related fatalities are rare and peanut oral immunotherapy, despite reported benefits, is not a cure for food allergies. Finally, not all infants with eczema will develop food allergies and epinephrine auto-injectors may unfortunately be both unavailable and underused in food-triggered anaphylaxis. Conclusions and relevance: Healthcare professionals must be familiar with recent evidence in the food allergy field and avoid common misunderstandings that may negatively affect prevention, diagnosis and management of this chronic disease.

scholarly journals Assessment of the Sensitizing Potential of Proteins in BALB/c Mice: Comparison of Three Protocols of Intraperitoneal Sensitization

Nutrients ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 903 ◽  
Author(s):  
Jesús Arámburo-Galvez ◽  
Norberto Sotelo-Cruz ◽  
Lilian Flores-Mendoza ◽  
Martina Gracia-Valenzuela ◽  
Francisco Chiquete-Elizalde ◽  
...  
Keyword(s):  
Milk Proteins ◽  
Serum Levels ◽  
Specific Ige ◽  
Cow Milk ◽  
Sample Collection ◽  
Igg Antibody ◽  
Allergenic Protein ◽  
Ige Antibodies ◽  
Undetectable Serum ◽  
Specific Ige Antibodies

Most food allergy cases are associated with a limited group of allergens. This could be attributed to an increased ability of some foods to sensitize and trigger allergic reactions. However, there are no validated animal models to evaluate the sensitizing or allergenic potentials of proteins. Our aim was to evaluate three protocols of adjuvant-free intraperitoneal sensitization that differ in the time points for sample collection (days 14, 28 and 35 from beginning of the sensitization) and also in the number of immunizations (2, 5 and 3, respectively). Ovalbumin (OVA; 0.05 mg), cow milk proteins (CMP; 0.025, 0.05 and 0.25 mg), and potato acid phosphatase (PAP; low allergenic protein; 250.0 mg) were administered intraperitoneally (ip) to BALB/c mice (n = 4–6) and the protein-specific IgE and IgG antibody responses were evaluated using ELISA. Additional serum protein-specific IgE antibodies evaluations were carried out after IgG depletion. Anti-OVA IgE antibodies were detected in mice from all three protocols. The responses were higher in the group of mice that underwent the 28-day protocol than in those that underwent the 14- or 35-day protocols (p < 0.01 and p < 0.05, respectively). Anti-CMP IgE antibodies were detected in both the 14- and 28-day protocols, but the response was higher in the group that underwent the 28-day protocol (p < 0.001). The anti-CMP IgE antibody response detection was improved after serum IgG depletion (p < 0.001). Anti-PAP IgE antibodies were not detected. Mice with undetectable serum levels of protein-specific IgE triggered anti-OVA, -CMP, and -PAP IgG responses. An adjuvant-free 28-day protocol with five ip immunizations seems appropriate for evaluation of the inherent sensitizing or allergenic capacity of the studied proteins. Reproducible results were obtained utilizing the BALB/c mouse strain. Inter-laboratory studies including a larger number of proteins should be carried out to validate this model.

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