Cross Reactions Among Foods1x
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چکیده
• Allergy tests are often positive to related foods even though many or all of the foods would be tolerated. This is because many foods have similar proteins that the immune system may recognize, but the recognized proteins, or the nature of the immune response, are not sufficient to cause a reaction. For instance, more than 50% of children with a peanut allergy test positive to other beans (pea, soy, string bean, etc.) but only about one in 20 experience symptoms from these beans. Therefore, “screening” tests are often misleading.
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Precipitating cross-reactions among pneumococcal types.
Data accumulated over many years are brought together on cross-reactions of 46 among the more than 80 pneumococcal serological types, with the idea of correlating cross-reactions with the structures of the relevant type-specific capsular polysaccharides, insofar as these have been determined. The precipitin reaction was carried out with the polysaccharides and antibodies raised in horses, rabbi...
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There is a low frequency of idiotypic cross-reactions among antibodies of the same specificity from different outbred rabbits (1-4). When such cross-reactions do occur they are generally weak and involve a small proportion of the antiidiotypic antibody population (5, 6). This generalization applies also to rabbits belonging to the same family group (2, 7). Contrasting results were reported by E...
متن کاملSP ] gCIFICITIES SUPPRESSION IN ADULT
There is a low frequency of idiotypic cross-reactions among antibodies of the same specificity from different outbred rabbits (1-4). When such cross-reactions do occur they are generally weak and involve a small proportion of the antiidiotypic antibody population (5, 6). This generalization applies also to rabbits belonging to the same family group (2, 7). Contrasting results were reported by E...
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Background & Objective: Food allergy is an important and increasing problem in children. The aim of this study was to investigate the type and prevalence of food reactions in child care centers of Zanjan city (northwest, Iran). Materials & Methods: This cross-sectional study was performed in 40 kindergartens from Zanjan city. A questionnaire containing information about the occurrence of fo...
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Serologic methods are becoming increasingly important in the diagnosis of mycotic infections. Necessary prerequisites for the evaluation of such tests should include information on the antigenic relationships of strains within a species as well as relationships with other species, both closely and distantly related. Several investigations of interspecies cross reactions among fungi have appeare...
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