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  • 1
    Electronic Resource
    Electronic Resource
    Occupational asthma due to different spices (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 51 (1996), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We describe a 27–year-old subject who developed rhinitis and asthma symptoms 1 year after starting to prepare a certain kind of sausage. He was previously diagnosed as having allergy to coconut, banana, and kiwi and allergic rhinitis to horse, cat, dog, and cow. A positive immediate skin prick test (SPT) for paprika (dry powder of Capsicum annuum [Solanaceae]), coriander (Coriandrum sutivum [umbelliferous]), and mace (shell of nutmeg, Myristica fragrans [Myristicaceae]) at a concentration of 10% (w/v) was obtained. SPT with other sausage ingredients, mites, pollens, and molds were negative. By ELISA, specific IgE antibodies to paprika, coriander, and mace were demonstrated. By ELISA-inhibition assays, a partial cross-reactivity was found among IgE-binding components from paprika and mace. The immunoblot analysis showed two IgE-reactive protein bands able to bind to IgE from mace of 20 and 40 kDa and two other bands from coriander extract of 50 and 56 kDa. No bands were detected from paprika extract. Specific bronchial inhalation challenges showed an immediate asthmatic reaction to extracts from paprika, coriander, and mace with a maximum fall in FEV, of 26%, 40%, and 31%, respectively, with no late asthmatic reactions. In summary, we demonstrate that inhalation of dust from paprika, coriander, and mace can result in an IgE-mediated reaction to these spices. In this patient, occupational asthma was due to spices from botanically unrelated species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.1996.tb04568.x
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  • 2
    Electronic Resource
    Electronic Resource
    Cloning and expression of a major allergen from Cupressus arizonica pollen, Cup a 3, a PR-5 protein expressed under polluted environment (2004)
    Oxford, UK : Munksgaard International Publishers
    Allergy 59 (2004), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  This paper describes the cloning and expression of the Cupressus arizonica pollen protein Cup a 3. In addition, we present its modulation under polluted environmental conditions. Species of the Cupressaceae family are important because of their high sensitization prevalence.Methods:  Cup a 3 cloning is based on the sequence of the homologous protein Jun a 3. Cup a 3 was expressed with good yield in the methylotropic yeast Pichia pastoris.Results:  Recombinant Cup a 3 (rCup a 3) contains 199 amino acids, 10 potential phosphorylation sites and no glycosylation sites. By immunoblot 63% of cypress allergic patients had specific immunoglobulin E antibodies against rCup a 3 (n = 104). This major allergen is homologous to members of the pathogenesis-related proteins (PR-5 group) and contributes to the overall allergenicity of C. arizonica pollen. Our results show that the increased expression of Cup a 3 is dependent on the pollution in the area where the pollen has been collected, being higher under polluted conditions.Conclusions:  Cup a 3 is a PR-5 protein derived from C. arizonica pollen. The expression of the protein under polluted conditions has a direct incidence on the pollen allergenicity, as has been demonstrated by skin tests and Radioallergosorbent test inhibition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1398-9995.2003.00363.x
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  • 3
    Electronic Resource
    Electronic Resource
    Molecular cloning of major allergen from Cupressus arizonica pollen: Cup a 1 (2000)
    Oxford, UK : Blackwell Science, Ltd
    Clinical & experimental allergy 30 (2000), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The family Cupressaceae is a relevant source of allergens that causes winter respiratory allergies. Cloning and sequencing the major antigen of Cupressus arizonica is important for a better diagnosis and treatment of sensitized patients.To obtain a full-length complementary DNA for Cup a 1, the major allergen of Cupressus arizonica pollen. It was cloned and sequenced and the recombinant protein was expressed.Messenger RNA from Cupressus arizonica pollen was obtained and the Cup a 1 sequence was established using a 3′-RACE system and primers based on the N-terminal amino acid sequence. Recombinant Cup a 1 was cloned in pBluescript and expressed in a glycosylated form in rabbit reticulocytes. The cDNA was subcloned in pGEX-5X-1 and expressed in Escherichia coli as a fusion protein with GST.Recombinant Cup a 1 is highly homologous with the major allergens of mountain cedar (Jun a 1), Japanese cypress (Cha o 1) and Japanese cedar (Cry j 1). Cup a 1 contains three potential N-glycosylation sites that are different from those found in Jun a 1 and Cry j 1. The cloned protein contains a pectate lyase active site identical to those of Cry j 1 and Jun a 1. The IgE from patients' sera recognizes recombinant Cup a 1, and this reactivity is higher with the glycosylated protein.Cup a 1 has been cloned and sequenced. As expected, the high degree of homology with Cha o 1, Jun a 1 and Cry j 1 explains the cross-reactivity of conifer pollens. Different IgE reactivity with the glycosylated and non-glycosylated protein suggests the importance of carbohydrate moieties in the IgE binding site.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2222.2000.00949.x
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  • 4
    Electronic Resource
    Electronic Resource
    IgD antibodies: in vitro blocking activity of IgE mediated reactions (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 12 (1982), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Sera from 177 atopic patients treated by immunotherapy were screened in order to detect IgD antibodies against a purified fraction of Lollium perenne (fractions C). IgD antibodies were found in 23% of the subjects. Eight of these sera were selected and their IgD isolated by means of immunoabsorption. The in vitro biological activity of the IgD antibodies against fraction C was tested by three methods: basophil degranulation, histamine release and RAST inhibition test. In all these assays, the data obtained indicated a possible blocking effect of the IgD antibodies upon the IgE in vitro mediated reactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1982.tb03124.x
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  • 5
    Electronic Resource
    Electronic Resource
    Allergy to olive pollen: T-cell response from olive allergic patients is restricted by DR7-DQ2 antigens (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 26 (1996), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Backgound We have recently described the association between the IgE antibody response to Ole e I (the major antigen from olive tree pollen) and the DR7-DQ2 haplotype in a Spanish population.Objeectivc and methods Due to the linkage disequilibrium between DR7 and DQ2, and thus the dillicult distinction between the role of these two antigens in the T-cell activation response, we decided to solve this question by two approaches:1. The study of another ethnic group, individuals of Arabic origin, with a presumably distinct disequilibrium linkage between DR and DQ antigens. Genomic DNA typing was performed in 46 subjects (allergic and non-allergic) by Restriction Fragment Length Polytnotphism (RFLP) and results showed that patients with specific IgE antibodies α-Ole e I, were DR7 and or DQ2. These data show a similar restriction pattern to those previously described for Spanish patients. The phenolypic frequency of DR7 antigen is significantly greater than in the non-allergic population, with a corrected P(PJ value of O.O.32 The analysis of the genetic requirements of Ole e I response, using T-cell lines speific for this antigen. This was first carried out by blocking the proliferative response of these T-cell lines with specific anti-human HLA class II antibodies and then testing the genetic restriction of this response using a panel of histoeompatible and histoincompatible Antigen Presenting Cells (APCs). Both experiments corroborate the hypothesis that DR7 and DQ2 are implicated in the recognition o(Ole e I.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1996.tb00097.x
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  • 6
    Electronic Resource
    Electronic Resource
    Detection of Lipase Activity on Ultrathin-Layer Isoelectric Focusing Gels
    Amsterdam : Elsevier
    Analytical Biochemistry 222 (1994), S. 503-505 
    Details
    ISSN: 0003-2697
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1006/abio.1994.1524
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  • 7
    Electronic Resource
    Electronic Resource
    Allergy to cypress pollen (2005)
    Oxford, UK : Munksgaard International Publishers
    Allergy 60 (2005), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Although Cupressus sempervirens has been spread over southern Europe since antiquity, cypress pollen allergy has not been reported until 1945 (1). In France, the very first case reports were published in 1962 (2). Since then, the prevalence of cypress pollinosis seems to demonstrate an upward trend, concomitantly with the increased use of cypress trees as ornamental plants, as wind breaks and as hedges. Hyposensitization, using improved pollen extracts, is increasingly prescribed. Besides, prevention measures begin to be implemented. Such measures include avoidance of planting new cypress trees, especially near human populations’ centres, trimming of cypress hedges before the pollination season and agronomical research for hypoallergenic trees. Altogether, such new developments in cypress allergy deserve an update review.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.2005.00731.x
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  • 8
    Electronic Resource
    Electronic Resource
    Standard skin prick testing and sensitization to inhalant allergens across Europe – a survey from the GA2LEN network (2005)
    Oxford, UK : Munksgaard International Publishers
    Allergy 60 (2005), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Skin prick testing (SPT) is the standard method for diagnosing allergic sensitization but is to some extent performed differently in clinical centres across Europe. There would be advantages in harmonizing the standard panels of allergens used in different European countries, both for clinical purposes and for research, especially with increasing mobility within Europe and current trends in botany and agriculture. As well as improving diagnostic accuracy, this would allow better comparison of research findings in European allergy centres. We have compared the different SPT procedures operating in 29 allergy centres within the Global Allergy and Asthma European Network (GA2LEN). Standard SPT is performed similarly in all centres, e.g. using commercial extracts, evaluation after 15–20 min exposure with positive results defined as a wheal 〉3 mm diameter. The perennial allergens included in the standard SPT panel of inhalant allergens are largely similar (e.g. cat: pricked in all centres; dog: 26 of 29 centres and Dermatophagoides pteronyssinus: 28 of 29 centres) but the choice of pollen allergens vary considerably, reflecting different exposure and sensitization rates for regional inhalant allergens. This overview may serve as reference for the practising doctor and suggests a GA2LEN Pan-European core SPT panel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.2005.00895.x
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  • 9
    Electronic Resource
    Electronic Resource
    A double-blind, placebo-controlled oral challenge study with lyophilized larvae and antigen of the fish parasite, Anisakis simplex (2000)
    Copenhagen : Munksgaard International Publishers
    Allergy 55 (2000), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: The third-stage larvae of Anisakis simplex may be a hidden source of allergens in fish. The objective was to determine whether the ingestion of lyophilized A. simplex larvae, or antigen, induces clinical symptoms in a group of A. simplex-sensitized patients. Methods: Double-blind, placebo-controlled oral challenges were conducted in 11 individuals who had experienced allergic reactions after eating fish. Another patient had chronic urticaria unrelated to the ingestion of fish. All patients had positive skin tests and specific IgE determinations for A. simplex and negative skin tests to a battery of fish species. Conjunctival tests with A. simplex extracts were conducted in all patients and in five controls. The 12 patients received capsules containing either lactose or one, five, or 25 lyophilized larvae of A. simplex at 2-h intervals in a double-blind fashion. The highest single dose was 100 larvae. ECP and tryptase levels in serum were measured before and after the last oral challenge. Lyophilized antigen was also given to five patients. Results: None of the 12 patients experienced a positive reaction after the ingestion of the placebo, the lyophilized larvae, or the antigen. Tryptase and ECP levels before and after challenges did not change significantly. Conjunctival provocation tests were positive in 11 out of the 12 patients and in none of the controls. Conclusions: The ingestion of 100 lyophilized A. simplex larvae, or its equivalent in antigen, does not induce clinical symptoms in individuals with a clinical history and laboratory findings of hypersensitivity to A. simplex. The data suggest that only the ingestion of live larvae may be capable of inducing allergic manifestations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1398-9995.2000.00422.x
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  • 10
    Electronic Resource
    Electronic Resource
    Beer-induced anaphylaxis: identification of allergens (1999)
    Copenhagen : Munksgaard International Publishers
    Allergy 54 (1999), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: We report on a 21-year-old atopic woman who developed urticaria, angioedema of the face, and wheezy dyspnea shortly after drinking beer and after eating a corn-made snack. Methods: Skin prick tests and specific IgE determinations to beer ingredients and cereal extracts were performed. Immunoblotting inhibition assays were carried out to investigate possible common allergens shared by barley and malt with corn. Results: Skin prick tests and specific IgE measurements with beer, barley, malt, wheat, corn, rye, rice, and oat flour were positive. Ten pollen-allergic patients showed negative skin tests to beer. Double-blind, placebo-controlled, oral challenge tests with sodium metabisulfite and wheat flour were negative. Immunoblotting demonstrated several IgE-binding bands at 31–56 kDa in malt and barley extracts, and a major band at 38 kDa in the beer extract. Immunoblot inhibition assays showed that malt extract was able to inhibit most of the IgE-binding bands in wheat and corn extracts, whereas corn did not produce significant inhibition to barley and malt extracts. Conclusions: This patient developed type I hypersensitivity to barley/malt and corn. Although she also showed IgE reactivity to wheat and other cereals, no symptoms were elicited upon ingestion of these cereals, probably indicating latent sensitization to them.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1398-9995.1999.00827.x
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