Cord Serum Screening Test and the Newborns Allergic Status.
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2009-04-27
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Abstract
OBJECTIVE: To evaluate the predictive value of a cord serum screen test and possible subsequent development of allergic disease in infants. DESIGN: Cohort study. SETTING: 100 pregnant women were randomly recruited for the study.
METHODS: The maternal serum and the cord serum of their matched newborn were analyzed for total serum immunoglobulin E (IgE), gamma interferon (g IFN), house dust mite- Dermatophagoides pteronyssinus allergen (Der p1) and Blomia tropicalis allergen (Blo t5) using immunoassay methods. All infants were followed up for one year.
RESULTS: Infants who had allergic diseases in the one year follow-up (n=45) had significantly (P < 0.001) elevated IgE, Der p1, Blo t5, and significantly low g IFN levels in cord serum as compared to the same parameters of infants who did not develop allergic disease in the one year follow-up (n=43).
CONCLUSION: In utero exposure to HDM allergens Der p1 and Blot5 is prevalent. We have successfully established a cord serum screening test for predicting allergic diseases in infancy with 93% specificity and sensitivity.
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Shah S, Bapat M. Cord Serum Screening Test and the Newborns Allergic Status. Indian Pediatrics. 2009 Apr; 46(4): 295-299