scholarly journals Diseases connected with work in hay in Iceland. Causes and scientific studies

2021 ◽  
Vol 107 (03) ◽  
pp. 130-136
Author(s):  
Davíð Gíslason ◽  
◽  
Tryggvi Ásmundsson ◽  
Þórarinn Gíslason ◽  
◽  
...  
Keyword(s):  
Specific Ige ◽  
House Dust Mites ◽  
Skin Tests ◽  
Dust Mites ◽  
Storage Mites ◽  
Thermophilic Actinomycetes ◽  
Positive Skin ◽  
Long Time ◽  
Precipitin Test ◽  
Farming Families

Diseases connected with work in hay have been known in Iceland for a long time. In 1981 scientific studies of these diseases were started in Iceland at the request of the Farmers Union. The results of these studies are summarized in this article. In studies of hay a great amount of storage mites, moulds and thermophilic actinomycetes (microlyspora faeni) were found in addition to allergens from mice and pollen. Symptoms caused by hay dust were mainly from nose and eyes in people with positive skin tests, but cough, dyspnea and fever were equally common in those with negative skin tests. The most common causes of allergy in farming families were storage mites and cattle, but allergy to cats, dogs and grass pollen were less common rurally than in the Reykjavik area. When comparing individuals working in heavy hay dust with those working in cleaner air, the former group had a higher likelihood of having a positive precipitin test against micropolyspora faeni, fever after work in hay and airway obstruction. It was shown that Icelandic farmers were more likely to get emphysema than other people irrespective of smoking. In a large study of homes in the Reykjavik area almost no mites were found. In spite of this, positive specific IgE tests against dust mites were equally common as in Uppsala, Sweden, where dust mites were found in 16% of homes. In further studies it was found, that 57% of people in the study had been more and less exposed to hay dust. They had either been raised on a farm, been on a farm in the summer during childhood or owned horses and fed them with hay. We have argued that cross allergy to storage mites may be the cause of a rather common allergy to house dust mites. A new study of middle-aged individuals has shown that allergy to storage mites is a little more common in the Reykjavik area than in Aarhus, Bergen or Uppsala. The most likely explanation is that they have more often been exposed to hay dust.

scholarly journals Serum specific IgE responses to inhalant allergens sensitization

2017 ◽  
Vol 26 (3) ◽  
pp. 224-8
Author(s):  
Iris Rengganis ◽  
Suriani Alimuddin ◽  
Agus J. Susanto
Keyword(s):  
Immunoglobulin E ◽  
Specific Ige ◽  
Cross Sectional Study ◽  
Positive Skin Prick Test ◽  
Dust Mites ◽  
Storage Mites ◽  
Cross Sectional ◽  
Positive Skin ◽  
Prick Test ◽  
Inhalant Allergens

Background: Serum specific immunoglobulin E (ssIgE) sensitization to common inhalant allergens has not been studied in Indonesia. This study aimed to evaluate specific IgE production of common inhalant allergens in patients with asthma and/or allergic rhinitis in Jakarta, Indonesia.Methods: This was a cross-sectional study in adult patients with respiratory allergy from September to December 2016 at Cipto Mangunkusumo Hospital, Jakarta. Patients were included if they showed at least one positive skin prick test (SPT) to environmental allergens. Serum specific IgE was assayed by using multiple allergosorbent methods. Inhalant allergens tested were dust mites, pollen, cockroach, animal dander, and mould. Serum IgE level more than 0.35 kU/L was considered positive.Results: One hundred subjects were enrolled (76% women). Dust mites made up 75% of sensitization, followed by cat/dog (31%), cockroach (27%), pollen (24%), and mould (6%). Almost all patients sensitized to cockroach, pollen, cat/dog epithelia and mould were also co-sensitized with dust mites. Twenty two percent of patients were negative to all tested allergens.Conclusion: IgE-sensitization to inhalant allergens varies widely in respiratory allergic patients. House dust and storage mites are the most common allergens. About one-fifth of the subjects did not show specific-IgE sensitization. Thus, this test should always be combined with SPT to diagnose allergy.

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.

Molecular identification of house dust mites and storage mites

2011 ◽  
Vol 55 (2) ◽  
pp. 123-133 ◽  
Author(s):  
Shew Fung Wong ◽  
Ai Ling Chong ◽  
Joon Wah Mak ◽  
Jessie Tan ◽  
Suk Jiun Ling ◽  
...  
Keyword(s):  
Molecular Identification ◽  
House Dust ◽  
House Dust Mites ◽  
Dust Mites ◽  
Storage Mites ◽  
And Storage

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.

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.

Lipid Transfer Protein Sensitization: Risk of Anaphylaxis and Molecular Sensitization Profile in Pru p 3-Sensitized Patients

2020 ◽  
pp. 1-8
Author(s):  
Maria Ruano-Zaragoza ◽  
Maria Luisa Somoza ◽  
Teodorikez Wilfox Jiménez-Rodriguez ◽  
Victor Soriano-Gomis ◽  
Purificación González-Delgado ◽  
...  
Keyword(s):  
Lipid Transfer Protein ◽  
Allergic Diseases ◽  
Specific Ige ◽  
Oral Allergy Syndrome ◽  
Skin Tests ◽  
Food Allergies ◽  
Lipid Transfer ◽  
Cross Sectional ◽  
Positive Skin ◽  
Pru P 3

<b><i>Background:</i></b> Component-resolved diagnosis reveals the IgE response to many inhaled, food, and other allergens, improving the understanding and diagnosis of allergic diseases. <b><i>Objective:</i></b> The aims of the study are to study the recognition of different lipid transfer proteins (LTPs) and other allergen families in a large group of people sensitized to Pru p 3 and to analyze the relationship between the clinical entities and the allergens. <b><i>Methods:</i></b> This cross-sectional study included a large cohort of patients with positive skin tests to peach fruit and Pru p 3 specific IgE antibodies. Respiratory and food allergy symptoms were collected, and we performed prick tests with pollen, plant food, and other allergens plus the ImmunoCAP ISAC assay. <b><i>Results:</i></b> Our sample consisted of 421 people with a mean age of 33.25 years (range 16–68); 54.6% were women. Clinical entities included anaphylaxis (37.1%), urticaria (67.9%), and oral allergy syndrome (59.1%). Rhinitis, rhinoconjunctivitis, and/or asthma were diagnosed in 71.8% of the participants. The most pronounced correlation existed between sensitization to Pru p 3 and to Jug r 3, Pla a 3, Ara h 9, and Cor a 8. We found a higher incidence of anaphylaxis in people with 5 or more recognized LTPs. No association was observed between inhaled and food allergies. <b><i>Conclusion:</i></b> Most Pru p 3-sensitized participants were sensitized to additional allergens from the same family and, to a lesser extent, to other allergens, mainly in the profilin and PR-10 protein families. Anaphylaxis occurred in more than a third of the cases evaluated, and almost three-quarters of them had respiratory symptoms. Respiratory and food allergies involving LTPs do not seem to be associated.

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