Walaa Othman Elshabrawy1, Hisham Abdel-Sadek Ismail2, Khaled Mohamed Hassanein3. 1. Department of Clinical Pathology, College of Medicine, Qassim University, KSA ; Department of Clinical Pathology, Faculty of Medicine, Mansoura University, Egypt. 2. Department of Clinical Pathology, College of Medicine, Qassim University, KSA. 3. Department of Medical Microbiology and Immunology, College of Medicine, Qassim University, KSA ; Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Egypt.
Abstract
BACKGROUND: There are multiple environmental factors that influence a sensitized (IgE antibody positive) patient's predisposition to manifest allergic symptoms following allergen exposure. The majority of allergens are known to induce morbidity with chronic symptoms such as rhinitis, pruritis, dermatitis and urticaria. AIM: To study the impact of environmental and agricultural pollutants with different pollens on the immunological, hematological and biochemical markers and to determine the prevalence of sensitization to allergens among exposed individuals as well as to identify the eliciting allergens. SUBJECTS AND METHODS: Ninety six highly exposed individuals to environmental and agricultural pollution in addition to 20 as controls were selected. A solid phase enzyme-linked immunosorbent assay and the EUROLINE test kit were used for the quantitative determination of total IgE concentration and semi-quantitative in vitro assay of human IgE antibodies to some of the inhalant, ingestant and contactant allergens in serum samples, respectively. Percentage and absolute eosinophil counts and biochemical parameters were analyzed. RESULTS: Thirteen (13.5%) out of the 96 studied highly exposed subjects were manifesting allergic symptoms. Higher significant total serum IgE levels and absolute eosinophil counts in groups 1 and 3 of the highly exposed individuals compared to the control group were found (p1=0.00, p3=0.001 and p1=0.016, p3=0.028, respectively). Higher sensitization with inhalant Timothy grass, Aspergillus fumigatus, Der. Farinae and Olive; ingestant Egg yolk, Mango, Strawberry and Codfish and with contactant Latex/plastic and Crude oil was found in the studied groups compared with the controls. CONCLUSION: The present data suggest that the highly exposed subjects to pollution are at high risk of developing an allergy. For the screening of those with suspected allergen sensitization, the determination of specific IgE antibodies is a suitable marker of type I allergy.
BACKGROUND: There are multiple environmental factors that influence a sensitized (IgE antibody positive) patient's predisposition to manifest allergic symptoms following allergen exposure. The majority of allergens are known to induce morbidity with chronic symptoms such as rhinitis, pruritis, dermatitis and urticaria. AIM: To study the impact of environmental and agricultural pollutants with different pollens on the immunological, hematological and biochemical markers and to determine the prevalence of sensitization to allergens among exposed individuals as well as to identify the eliciting allergens. SUBJECTS AND METHODS: Ninety six highly exposed individuals to environmental and agricultural pollution in addition to 20 as controls were selected. A solid phase enzyme-linked immunosorbent assay and the EUROLINE test kit were used for the quantitative determination of total IgE concentration and semi-quantitative in vitro assay of humanIgE antibodies to some of the inhalant, ingestant and contactant allergens in serum samples, respectively. Percentage and absolute eosinophil counts and biochemical parameters were analyzed. RESULTS: Thirteen (13.5%) out of the 96 studied highly exposed subjects were manifesting allergic symptoms. Higher significant total serum IgE levels and absolute eosinophil counts in groups 1 and 3 of the highly exposed individuals compared to the control group were found (p1=0.00, p3=0.001 and p1=0.016, p3=0.028, respectively). Higher sensitization with inhalant Timothy grass, Aspergillus fumigatus, Der. Farinae and Olive; ingestant Egg yolk, Mango, Strawberry and Codfish and with contactant Latex/plastic and Crude oil was found in the studied groups compared with the controls. CONCLUSION: The present data suggest that the highly exposed subjects to pollution are at high risk of developing an allergy. For the screening of those with suspected allergen sensitization, the determination of specific IgE antibodies is a suitable marker of type I allergy.
Entities:
Keywords:
Environmental and agricultural pollens; Recombinant allergens; Specific IgE antibodies
Authors: H Bayram; J L Devalia; O A Khair; M M Abdelaziz; R J Sapsford; M Sagai; R J Davies Journal: J Allergy Clin Immunol Date: 1998-11 Impact factor: 10.793
Authors: S Salvi; A Blomberg; B Rudell; F Kelly; T Sandström; S T Holgate; A Frew Journal: Am J Respir Crit Care Med Date: 1999-03 Impact factor: 21.405