This study seeks a better understanding of the pathogenesis of asthma in early life. The aim of this project is to determine whether the offspring of obese mothers at 3 years of life have increased the risk of asthma compared to children whose mothers were not obese and whether this increased risk is associated with a programming altered immune reactivity at birth.
The general objectives of this study are: 1. To determine whether the increased risk of asthma in children born from a pre-pregnant obese mother can be observed at 3 years of life and whether this increased risk associated with altered plasma levels of immune mediators at birth. 2. To explore in children born from pre-pregnant obese mother whether monocyte physiology and M1-M2 polarization present an altered response and expression of asthma-related immune-modulations at birth. 3. To study in neonates born from pre-pregnant obese mother whether the in vitro expression of TNFα, IL12, IL-10 and IL-4Rα in monocytes associates with changes in the DNA methylation status in the promoter regions of those genes. The study is performed in accordance with the Helsinki Declaration, and the study protocol was accepted by Institutional Review Boards at School of Medicine of the Pontificia Universidad Católica de Chile.
Study Type
OBSERVATIONAL
Enrollment
240
Risk of asthma (defined as "positive asthma predictive index" at 36 months of age)
Time frame: 36 months of age
Allergy status (positive skin prick test)
Time frame: 30-36 months of age
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