Document Detail

Effect of maternal asthma, inhaled glucocorticoids and cigarette use during pregnancy on the newborn insulin-like growth factor axis.
MedLine Citation:
PMID:  19695914     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Fetal growth varies in a sex-specific manner in response to maternal asthma during pregnancy, but the mechanisms are unclear. OBJECTIVE: We examined the influence of maternal asthma severity and associated exposures, inhaled glucocorticoid treatment, maternal cigarette use, and fetal sex on fetal growth and placental function during pregnancy and on the newborn insulin-like growth factor (IGF) axis. STUDY SUBJECTS AND DESIGN: Fetal growth was assessed in a prospective cohort of asthmatic and non-asthmatic women (n=145). At delivery, umbilical vein plasma was collected from male (n=61, controls n=16 and asthmatic n=45) or female (n=84, controls n=22 and asthmatic n=62) fetuses. Cord plasma insulin-like growth factor (IGF) binding protein (BP)-1, IGFBP-3, IGF-1 and IGF-2 were measured by radioimmunoassay and ELISA. RESULTS: Cord plasma IGF-1 was the main component of the neonatal IGF axis altered by asthma and cigarette use. IGF-1 was increased in the presence of mild asthma and a male fetus and decreased in the presence of a female fetus and maternal asthma with cigarette use. IGFBP-3 was also decreased in the female fetuses of pregnancies complicated by asthma and cigarette use. Inhaled glucocorticoid use for the treatment of asthma did not affect the IGF axis. The strongest overall predictor of female birth weight after accounting for asthma severity, inhaled glucocorticoid treatment and cigarette use was IGF-1. For males, the strongest predictor of birth weight was IGFBP-3. CONCLUSION: The data suggest male and female fetuses institute different strategies in response to adverse pregnancy conditions such as asthma and cigarette use.
Vicki L Clifton; Nicolette A Hodyl; Vanessa E Murphy; Warwick B Giles; Robert C Baxter; Roger Smith
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-08-19
Journal Detail:
Title:  Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society     Volume:  20     ISSN:  1532-2238     ISO Abbreviation:  Growth Horm. IGF Res.     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-02-01     Completed Date:  2010-04-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9814320     Medline TA:  Growth Horm IGF Res     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  39-48     Citation Subset:  IM    
Copyright Information:
Copyright 2009 Elsevier Ltd. All rights reserved.
Department of Paediatrics and Reproductive Health, Faculty of Health Sciences, University of Adelaide, Adelaide, SA, Australia.
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MeSH Terms
Administration, Inhalation
Asthma / blood,  drug therapy*
Birth Weight / drug effects
Fetal Blood / chemistry,  metabolism*
Glucocorticoids / administration & dosage,  adverse effects*
Infant, Newborn
Insulin-Like Growth Factor Binding Protein 3 / blood,  metabolism*
Insulin-Like Growth Factor I / analysis,  metabolism*
Maternal Exposure*
Maternal-Fetal Exchange
Sex Characteristics
Smoking / adverse effects*
Reg. No./Substance:
0/Glucocorticoids; 0/Insulin-Like Growth Factor Binding Protein 3; 67763-96-6/Insulin-Like Growth Factor I

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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