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Original Article
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The quantity of unheated milk tolerated as a predictor of tolerance to baked milk

September 10, 2019
Original Article

The quantity of unheated milk tolerated as a predictor of tolerance to baked milk

Sait Karaman, Semiha Bahçeci Erdem, Hikmet Tekin Nacaroğlu, Canan Şule Karkıner, Demet Can

Department of Pediatric Allergy, Dr Behcet Uz Children’s Hospital, Izmir, Turkey

Abstract

Background: Tolerance of baked milk indicates a good prognosis in IgE-mediated cow’s milk allergy.
Objective: The present study aims to investigate the predictors of baked milk tolerance, particularly the amount of milk tolerated in the first oral food challenge (OFC) test, in children with IgE-mediated cow’s milk allergy.
Methods: The study included 35 cases who were diagnosed with IgE-mediated cow’s milk allergy upon open OFC testing in the Pediatric Allergy Clinic. Four weeks after the diagnosis, skin prick test (SPT) and OFC were performed with baked milk. Cases who did and did not develop reactions during OFC with baked milk were compared regarding clinical and laboratory parameters.
Results: Twelve cases (33.3%) did not develop a reaction during OFC with baked milk. Those who had low levels of casein sIgE, β-lactoglobulin sIgE, and α-lactoalbumin sIgE; small SPT wheal diameter for baked milk and α-lactoalbumin; and a large amount of unheated milk tolerated in the first OFC were found to be tolerant to baked milk (p < 0.05). For predicting baked milk tolerance, a cut-off level of the amount of unheated milk tolerated in OFC was calculated as 620 mg [with the area under the curve (AUC) 0.88 (95% confidence interval 0.77-0.99) in ROC curve analysis].
Conclusion: If a child with cow’s milk allergy is able to tolerate more than 620 mg of milk protein during challenge with unheated milk, this may show that this child will tolerate baked milk, meaning that the child will be able to tolerate cow’s milk in the future.
Key words: Allergy, Baked, Casein, Challenge, Children, Food, Milk, Predictor, Tolerance

Full Text
Vol. 40, No. 4
Allergy, Baked, Casein, Challenge, Children, Food, Milk, Predictor, Tolerance

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