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%.

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 A PILOT STUDY OF SENSITIZATION TO PLANE TREE POLLEN IN SOFIA, BULGARIA

2021 ◽  
Vol 27 (4) ◽  
pp. 4128-4132
Author(s):  
Georgi Nikolov ◽  
◽  
Rusana Tsvetanova ◽  
Mariela Hristova-Savova ◽  
◽  
...  
Keyword(s):  
Pilot Study ◽  
Grass Pollen ◽  
Green Infrastructure ◽  
Birch Pollen ◽  
Skin Tests ◽  
Plane Tree ◽  
Skin Reactions ◽  
Positive Skin ◽  
Birch Tree ◽  
Significant Difference

Purpose: Platanus pollen is a serious cause of asthma, allergic rhinitis and conjunctivitis in many European countries. The aim of the present pilot study is to investigate the sensitization to 3 different plane tree species in a group of patients with pollinosis. Materials and methods: 21 patients were surveyed - 11 men and 10 women. A skin prick test was performed with a set of allergens: Grass pollen mix; Betulaceae pollen mix; Platanusorientalis; Platanusacerifolia; Platanusoccidentalis. Results: 95% of patients are sensitized to grass pollen, with moderate positive skin reactions predominating. 86% have a co-sensitization to tree pollens also, particularly to the birch tree family. Only 3 (14%) of the studied patients showed slight positive skin tests to the studied plane tree allergens, with no significant difference in sensitization to studied Platanus species (p>0,05). Conclusion: At present, the sensitization to different Platanus species is not comparable to that of grass or birch pollen. However, it will be necessary to conduct new long-term, large-scale studies to prove whether Platanus pose a real threat to people in urban areas. The results of this interdisciplinary study are important both for clinical allergologists and for landscape architects and ecologists involved in the planning and management of urban green infrastructure.

scholarly journals Characteristics of the eosinophilic fenotype of bronchial asthma in children

2017 ◽  
pp. 52-57
Author(s):  
E Asiryan ◽  
N Titova
Keyword(s):  
Bronchial Asthma ◽  
Skin Tests ◽  
Control Group ◽  
Ige Receptor ◽  
Positive Skin ◽  
Ige Antibodies ◽  
Total Ige ◽  
Atopic Bronchial Asthma ◽  
Ige Receptors ◽  
High Level

The purpose of the work is clinical and laboratory examination of children with an eosinophilic phenotype of bronchial asthma. Materials and methods. 160 children aged 5 to 18 years were examined: 130 patients with atopic bronchial asthma, 30 children of the control group. During the work, the level of eosinophils, the level of eosinophils carrying FcεRI+ and CD23+IgE+ receptor, the level of total IgE, IgE antibodies to domestic and epidermal allergens in the blood serum were determined, clinical and anamnestic data were studied. Results. In children with atopic bronchial asthma, the relative and absolute content of eosinophils, as well as eosinophils carrying FcεRI+ and CD23+IgE+ receptors, is statistically significantly higher than in the control group (p<0.001). In 71 (54.62%) children with bronchial asthma, eosinophilia was detected, with 58 (81.69%) patients having a high level of eosinophils bearing the FcεRI + receptor and 56 (78.87%) children with a high level of eosinophils carrying CD23+IgE+ receptor. In the group of children with bronchial asthma, a correlation was established between the level of total IgE and the level of eosinophils carrying FcεRI+ (r=+0.389; p<0.01) and CD23+IgE+ receptors (r=+ 0.677; p<0.0001). In children with eosinophilia, in most cases, the hereditary nature of the disease is observed, the first manifestations of allergy are already present in the first year of life, concomitant allergopathology has been established. The optimal effect in the treatment of patients with eosinophilia was obtained with the appointment, as a basic therapy, of inhaled glucocorticosteroids, as well as short-acting β2-agonists for arresting episodes of bronchial obstruction. In most patients with asthma who have eosinophilia, serum levels of IgE antibodies to Dermatophagoides pteronyssinus, to the coat of the cat and the dog's coat are revealed, and positive skin scarification tests with these allergens are detected. Conclusion. In children with atopic bronchial asthma, there are signs of an eosinophilic phenotype: eosinophilia, high expression of FcεRI+ and CD23+IgE+ receptors, increased levels of total IgE and IgE antibodies, positive skin tests with domestic and epidermal allergens, hereditary predisposition, effectiveness of inhaled glucocorticosteroids.

Neue Charakteristika klinisch manifester Latexallergiker

2019 ◽  
Vol 7 (1) ◽  
pp. 29-31
Author(s):  
Vera Mahler
Keyword(s):  
Medical History ◽  
Skin Test ◽  
Correct Diagnosis ◽  
Natural Rubber Latex ◽  
Specific Ige ◽  
Latex Allergy ◽  
Skin Tests ◽  
Diagnostic Challenge ◽  
Positive Skin ◽  
Significant Difference

Background: Natural rubber latex (NRL) allergy is commonly diagnosed according to medical history, skin allergy tests, and serological analyses. However, skin tests are increasingly being abandoned because of (i) their time-consuming nature, (ii) latex preparations for skin tests being not commercially available, and (iii) the use of in-house prepared test solutions is becoming ever more difficult due to increasing regulatory hurdles. In this light, we have evaluated differences in the profiles of current and former patients with suspected latex allergy. Methods: Sera of skin test-positive patients from a historic cohort (1995-2001, n = 149 patients) and currently (2014-2015, n = 48 patients) were simultaneously analyzed for specific IgE to latex by ImmunoCAP. If the serological screening was positive (≥ 0.35 kU/l), component-resolved diagnostics including profilins and cross-reactive carbohydrate determinants (CCDs) were performed. Results: In contrast to 88% (131/149) of the skin test-positive patients from the 1990s, only 51.1% (24/47) of the current cohort were found positive for specific IgE to latex. While 48.3% (72/149) of the patients had a convincing positive history in the 1990s, current skin test-positive patients rarely reported a relevant medical history (8.5%, 4/47). Specific IgE levels to latex were significantly higher in former patients with suspected latex allergy (p < 0.001) than in former sensitized individuals without allergy. However, this significant difference was lost in current allergic and sensitized patients with positive skin tests. Conclusion: Sensitization profiles in patients with latex allergy have changed significantly over the last 2 decades. Discrimination between NRL sensitization and clinical allergy remains a diagnostic challenge. Our data highlight the need for a combination of all 3 criteria, i.e., patient history, skin test, and analysis of specific IgE, for a correct diagnosis of latex allergy.

Allergy to suxamethonium: persisting abnormalities in skin tests, specific IgE antibodies and leucocyte histamine release

1987 ◽  
Vol 17 (5) ◽  
pp. 385-392 ◽  
Author(s):  
A. DIDIER ◽  
M. BENZARTI ◽  
M. SENFT ◽  
D. CHARPIN ◽  
F. LAGIER ◽  
...  
Keyword(s):  
Histamine Release ◽  
Specific Ige ◽  
Skin Tests ◽  
Ige Antibodies ◽  
Specific Ige Antibodies

scholarly journals The skin test with tuberculous recombinant allergen AT successful treated patients with lung tuberculosis

2018 ◽  
Vol 20 (3) ◽  
pp. 17-20
Author(s):  
G S Balasanyants ◽  
N V Skotnikova ◽  
V V Dantsev
Keyword(s):  
Skin Test ◽  
Dynamic Control ◽  
Skin Tests ◽  
Recombinant Allergen ◽  
Positive Skin ◽  
Group 13 ◽  
Group Iii ◽  
Lung Tuberculosis ◽  
Skin Response ◽  
The Moment

38 patients with newly diagnosed tuberculosis, immediately after the end of the main course of treatment, when they were transferred to the third group of dispensary supervision (6-9 months) and when they were removed from the dispensary supervision (2-3 years later), a skin test with an allergen tuberculous recombinant was made. The positive skin test with tuberculosis recombinant allergen was defined at 20 patients - 13 mm. At the moment of removing to the III group only one skin test with tuberculosis allergen recombinant became negative, 19 (94,5%) patients had positive reactions - 13±2,3 mm. At the time of discharging from dispensary the positive reactions were determined at 16 (80%) cases - 10±2,3 mm, p0,05. In this group, 13 (65%) patients had normergic skin tests with tuberculosis allergen recombinant and 7 (35%) - hyperergic tests. At the time of removing to the III group at five from seven patients with hyperergic tests the results remained the same, median and at the moment of discharging from tuberculosis service only one patient had the hyperergic skin test with tuberculosis allergen recombinant - 18mm. Among patients with normergic skin tests with tuberculosis allergen recombinant at the time of group III removing median was 11±2,1 mm. At the last dynamic control the normergic results were determined at 15 (75%) patients and the tests median remained almost unchanged - 10±1,8 mm, the differences are reliable compared to the initial data (p0,05). In group which included 18 patients with negative skin tests with tuberculous allergen recombinant, the skin response stayed negative throughout all examination period except for one patient so patients of this group had not only clinical, radiological and bacteriological, but immunological signs of involution of the tuberculosis process. The study of the influence of clinical, epidemic and social factors to skin reaction showed that first group patients were significantly more likely to be unemployed (30% versus 5,5%; p0,05) whereas in second group married patients were reliably registered (61,1% versus 25%; p0,05). Other factors differed unreliably.

scholarly journals Sensitization to rodents (mouse/rat) in urban atopic populations without occupational exposure living in Campania district (Southern Italy): a multicenter study

2013 ◽  
Vol 8 ◽  
Author(s):  
Gennaro Liccardi ◽  
Gennaro Baldi ◽  
Anna Ciccarelli ◽  
Marina Cutajar ◽  
Maria D’Amato ◽  
...  
Keyword(s):  
Occupational Exposure ◽  
Western Europe ◽  
Southern Italy ◽  
Allergic Sensitization ◽  
Clinical History ◽  
Specific Ige ◽  
Moderate Degree ◽  
Skin Prick Tests ◽  
Few Data ◽  
Indoor Conditions

Background: Up to now very few data on allergic sensitization to rodent allergens in Western Europe and Italy are available, and there are no information at district level. The aim of this report was to investigate clinical significance and characteristics of allergic sensitization to mouse/rat (M/ Rt) allergens in atopic subjects living in Campania district (Southern Italy). Methods: Allergists from the whole Campania district were required to report the results of skin prick tests of at least 100 consecutive subjects. In 1,477 consecutive outpatients, we selected all subjects with an immediate skin reaction to M/Rt dander. Clinical history including a careful evaluation of the modality of exposure and the results of skin-prick tests (SPTs) were recorded. Results: Fifty seven patients were sensitized to M/Rt dander (5.78%). Two patients were mono-sensitized. Fourteen patients reported indoor conditions suggesting presence of rodents allergens at home. All patients exhibited low-moderate degree of SPT positivity to M/Rt. High frequency of concomitant allergic sensitization to dust mites was found. Conclusions: Our results suggest that the role of allergic sensitization to rodents is not negligible in atopic subjects without occupational exposure living in Campania district area; these values are higher in comparison to those previously found in Naples area. Highly atopic individuals should be tested by SPTs/evaluation of serum specific IgE to rodents in the case they should begin an occupational exposure to M/Rt or keep these animals as pets.

scholarly journals Epidemiology and drug allergy results in children investigated in allergy unit of a tertiary-care paediatric hospital setting

2020 ◽  
Vol 46 (1) ◽  
Author(s):  
A. Piccorossi ◽  
G. Liccioli ◽  
S. Barni ◽  
L. Sarti ◽  
M. Giovannini ◽  
...  
Keyword(s):  
Tertiary Care ◽  
Hospital Setting ◽  
Clinical History ◽  
Skin Tests ◽  
Hypersensitivity Reactions ◽  
Drug Reactions ◽  
Positive Skin ◽  
History Of ◽  
Work Up ◽  
Immediate Reactions

Abstract Background and objective Drug Hypersensitivity Reactions (DHRs) are considered adverse effects of medications that resemble allergy symptoms. The reported positive clinical history of pediatric drug reactions is about 10%, however, after allergy investigations, only a small percent is confirmed as hypersensitivity. The aim of this study was to analyze the clinical history, allergy work-up results and sensitization profile of children and adolescents referred to our Allergy Unit for suspected DHRs. Methods The study evaluated data related to a group of children with a positive history of drug reactions during a two-year period. The allergy work-up consisted of in vivo and in vitro tests, in accordance with the recommendations of the ENDA/EAACI guidelines. Results Data from a group of 637 patients [348 M (54.6%); 289 F (45.4%)] were retrospectively analyzed. Beta lactams (BLs) were the most common drugs involved in the reported clinical history, followed by non-steroidal anti-inflammatory drugs (NSAIDs). Severe cutaneous adverse reactions (SCARs) were most frequently observed during BL treatment. The confirmation of BL hypersensitivity was higher for immediate reactions (IRs) [9.4%; 5.1% through positive skin tests (STs) and 5.5% through drug provocation test (DPT)] compared to non-immediate reactions (non-IRs) (8.1%; 2.2% through STs and 6.2% through DPT). A higher number of positive results was obtained for BLs and macrolides when the tests were performed within 12 months after the index reaction (p < 0.05). During DPTs with amoxicillin-clavulanic acid, four hypersensitivity reactions (including one anaphylaxis) occurred despite negative STs. Conclusion Our data demonstrated that only 9.1% of patients resulted in being positive to allergy tests which is in line with the data in literature. An allergy work-up is mandatory for excluding suspected hypersensitivity.

Allergic Fungal Sinusitis Associated with Allergic Bronchopulmonary Aspergillosis: An Uncommon Sinobronchial Allergic Mycosis

2007 ◽  
Vol 21 (4) ◽  
pp. 412-416 ◽  
Author(s):  
Jean Jacques Braun ◽  
Gabrielle Pauli ◽  
Philippe Schultz ◽  
André Gentine ◽  
David Ebbo ◽  
...  
Keyword(s):  
Allergic Bronchopulmonary Aspergillosis ◽  
Specific Ige ◽  
Antifungal Drugs ◽  
Sinus Surgery ◽  
Skin Tests ◽  
Fungal Sinusitis ◽  
Allergic Fungal Sinusitis ◽  
Positive Skin ◽  
Oral Corticosteroids ◽  
Blood Eosinophils

Background The identification of allergic fungal sinusitis (AFS) is still controversial and much more recent than that of allergic bronchopulmonary aspergillosis (ABPA). Their association has been reported very rarely in the literature. Methods The aim of this study was to present a review of 6 cases of AFS associated with ABPA from a series of 12 cases of AFS and to compare AFS associated with ABPA and isolated AFS. Results All cases of AFS presented with chronic rhinosinusitis. The six cases with AFS and ABPA were atopic, asthmatic, with pulmonary infiltrates (five cases), central bronchiectasis (four cases), and both (three cases). The mycological and immunoallergological features of isolated AFS and AFS associated with ABPA were similar: eosinophilic allergic mucin with noninvasive fungi hyphae, high levels of blood eosinophils, total IgE, specific IgE, IgG, and positive skin tests to Aspergillus. The association of AFS and ABPA was concomitant (two cases) or remote in time (four cases). The treatment with oral corticosteroids and sinus surgery (six cases) associated with antifungal drugs (four cases) led to resolution in three cases, considerable improvement in one case, and therapeutic failure in two cases (follow-up longer than 5 years in all cases). Conclusion Independently of the signs linked to the organs involved (sinuses and bronchi) the mycological and immunoallergological features were similar for AFS and AFS associated with ABPA. AFS and ABPA can be isolated or associated in a sinobronchial allergic mycosis.

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