Occurrence of Specific Precipitins against Bovine Whey Proteins in Serum from Children with Gastrointestinal Disorders

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Abstract
Children with cow’s milk intolerance, clinically non-confirmed cow’s milk intolerance, coeliac disease, non-confirmed malabsorption, other gastrointestinal disorders, and normal children were investigated for the presence of precipitins against 40 individual bovine whey proteins by means of the crossed immunoelectrophoresis with intermediate gel technique. In the various groups of children the amount and specificity of bovine whey precipitins were neither connected with the various gastrointestinal disorders nor with alternating diet and challenge with milk. Bovine whey-specific IgE could not be detected in any of the patients clinically suspected for cow’s milk intolerance by cutaneous test, RAST or CRIE. The immunoglobulin level of the patients investigated did not differ significantly from the normal ranges. It is concluded that investigations of serum precipitins against bovine whey proteins do not give any significant information concerning cow’s milk intolerance.

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