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A Genetic Study of Immunoglobulin E and Atopic Disease Based on Families Ascertained through Asthmatic Children

Parks, T and Felix, K and Rice, T and Subbarao, PV and Marimuthu, KM and Rao, DC (1990) A Genetic Study of Immunoglobulin E and Atopic Disease Based on Families Ascertained through Asthmatic Children. In: Human Heredity, 40 (2). pp. 69-76.

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Abstract

In order to investigate the modes of inheritance of serum immunoglobulin E (IgE) levels and atopic disease, serum IgE levels and data on allergic disease were obtained from 42 families ascertained through asthmatic children visiting an allergy clinic. Although the mean IgE levels were elevated (mean 637 U/ml), the prevalence of atopic disease in this population was surprisingly low. When the data were analyzed using complex segregation analysis, no major locus could be detected. Moreover, the polygenic heritability was unexpectedly small even though the correlation between serum IgE levels and the liability to atopic disease was around 0.4. Given this unusual set of findings, it is postulated that parasitic infections in this population have (in accordance with well-established results of parasitic disease) caused both elevated levels of serum IgE and a decreased prevalence of allergic disease with the possible masking of the various genetic components of serum IgE levels and atopic disease.

Item Type: Journal Article
Publication: Human Heredity
Publisher: S. Karger AG
Additional Information: Copyright of this article belongs to S. Karger AG.
Department/Centre: Division of Biological Sciences > Biochemistry
Date Deposited: 06 Jan 2011 11:47
Last Modified: 05 Nov 2018 10:43
URI: http://eprints.iisc.ac.in/id/eprint/34867

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