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Träfflista för sökning "WFRF:(van Hage M) ;lar1:(oru)"

Sökning: WFRF:(van Hage M) > Örebro universitet

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1.
  • Hamsten, C., et al. (författare)
  • Identification of galactose-α-1,3-galactose in the gastrointestinal tract of the tick Ixodes ricinus; possible relationship with red meat allergy
  • 2013
  • Ingår i: Allergy. European Journal of Allergy and Clinical Immunology. - West Sussex, United Kingdom : Wiley-Blackwell Publishing Inc.. - 0105-4538 .- 1398-9995. ; 68:4, s. 549-552
  • Tidskriftsartikel (refereegranskat)abstract
    • Patients with IgE antibodies against the carbohydrate epitope galactose-α-1,3-galactose (α-Gal) have reported severe allergic reactions after consumption of red meat. Investigations have revealed associations between IgE to α-Gal and tick bites. We provide the first direct evidence that α-Gal is present within ticks thus potentially explaining the relationship between tick exposure and sensitization to α-Gal, with development of red meat allergy as a secondary phenomena. Serum from Swedish patients with delayed severe reactions to red meat was included in the study. A dose-dependent inhibition of IgE responses to α-Gal by the tick Ixodes ricinus is demonstrated. Furthermore, using cryostat-cut sections of I. ricinus, we show that both a monoclonal and a polyclonal antibody against α-Gal stains the gastrointestinal tract of the tick. The same pattern is seen when staining with patient sera IgE positive to α-Gal. These results confirm that the α-Gal epitope is present in I. ricinus and imply host exposure to α-Gal during a tick bite. This provides further evidence that tick bites are associated with IgE responses to α-Gal and red meat allergy.
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2.
  • Mitselou, Niki, 1982-, et al. (författare)
  • Preterm birth and risk of IgE sensitization up to early adulthood : a population-based birth cohort study
  • 2021
  • Ingår i: Allergy. European Journal of Allergy and Clinical Immunology. - : John Wiley & Sons. - 0105-4538 .- 1398-9995. ; 76:Suppl. 110, s. 397-399
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Background: Immunoglobulin E (IgE) sensitization is associated with asthma and allergic diseases. Gestational age influences early immune system development, thereby potentially affecting the process of tolerance induction to allergens. We aimed to study IgE sensitization to common allergens by gestational age from childhood up to early adulthood.  Method: Population-based birth cohort, data from the Swedish BAMSE study was used. Allergen-specific IgE to a mix of common food (fx5) and inhalant (Phadiatop) allergens were analysed at 4, 8, 16 and 24 years. Sensitization was defined as allergen-specific IgE ≥0.35 kU A /l to fx5 and/or Phadiatop at each time-point. Using logistic regression and generalized estimated equations, adjusted odds ratios (aORs) for sensitization in relation to gestational age were calculated. Replication was sought within the Swedish twin study STOPPA.Results: In BAMSE, 3523 participants were screened for IgE anti-bodies during follow-up; of these, 197 (5.6%) were born preterm (<37 gestational weeks), and 330 (9.4%) post-term (≥42 weeks). Preterm birth was inversely associated with sensitization to common food and/or inhalant allergens up to early adulthood; overall aOR = 0.71 (95% CI = 0.51- 0.98). An inverse association was also observed between preterm birth and sensitization to food allergens specifically; overall aOR = 0.59 (95% CI = 0.38- 0.95). No relation was found between post-term birth and IgE sensitization at any time-point. Replication analyses in STOPPA ( N  = 675) showed similar risk estimates for sensitization to food and/or inhalant allergens (aOR = 0.76; 95% CI: 0.45- 1.26), which resulted in a combined meta-analysis aOR = 0.72 (95% CI: 0.55- 0.95).  Conclusion: Our study suggests an inverse association between preterm birth and later IgE sensitization.
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3.
  • Mitselou, Niki, 1982-, et al. (författare)
  • Preterm birth reduces the risk of IgE sensitization up to early adulthood : A population-based birth cohort study
  • 2022
  • Ingår i: Allergy. European Journal of Allergy and Clinical Immunology. - : Munksgaard Forlag. - 0105-4538 .- 1398-9995. ; 77:5, s. 1570-1582
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Immunoglobulin E (IgE) sensitization is associated with asthma and allergic diseases. Gestational age influences early immune system development, thereby potentially affecting the process of tolerance induction to allergens.Objective: To study IgE sensitization to common allergens by gestational age from childhood up to early adulthood.Methods: Population-based birth cohort, data from the Swedish BAMSE study were used. Allergen-specific IgE antibodies to a mix of common food (fx5) and inhalant (Phadiatop) allergens were analysed at 4, 8, 16 and 24 years. Sensitization was defined as allergen-specific IgE >= 0.35 kU(A)/L to fx5 and/or Phadiatop at each time point. Using logistic regression and generalized estimated equations, adjusted odds ratios (aORs) for sensitization in relation to gestational age were calculated. Replication was sought within the Swedish twin study STOPPA.Results: In BAMSE, 3522 participants were screened for IgE antibodies during follow-up; of these, 197 (5.6%) were born preterm (<37 gestational weeks) and 330 (9.4%) post-term (>= 42 weeks). Preterm birth reduced the risk of sensitization to common food and/or inhalant allergens up to early adulthood by 29% (overall aOR = 0.71; 95% CI: 0.52-0.98), and to food allergens specifically by 40% (overall aOR = 0.60; 95% CI: 0.38-0.93). No relation was found between post-term birth and IgE sensitization at any time point. Replication analyses in STOPPA (N = 675) showed similar risk estimates for sensitization to food and/or inhalant allergens (aOR = 0.72; 95% CI: 0.42-1.21), which resulted in a combined meta-analysis aOR = 0.71 (95% CI: 0.54-0.94).Conclusions: Our study suggests an inverse association between preterm birth and long-term IgE sensitization.
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