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Size at birth, gestational age and cortisol secretion in adult life: foetal programming of both hyper- and hypocortisolism?

Record type: Article

Objective: Recent studies have suggested that lifelong programming of the hypothalamic–pituitary–adrenal (HPA) axis in utero is an important mechanism in explaining the link between small size at birth and adult cardiovascular disease. However, direct evidence from human birth cohorts has so far been contradictory. We set out to study reasons for this discrepancy by examining the relationship between adult HPA axis function and birthweight and body proportions at birth in a group of elderly subjects with detailed birth records.
Design: Birth cohort study.
Subjects: Four hundred and twenty-one men and women (mean age 69·5 years, range 65·1–75·8 years) born at term in Helsinki, Finland, during 1924–33, with body size and gestational age at birth recorded.
Measurements: Fasting serum cortisol and cortisol-binding globulin concentrations. The concentration of free cortisol was estimated by their ratio.
Results: There was no significant correlation between fasting cortisol concentrations and birthweight in either men or women. However, there was a weak inverse association between fasting cortisol and length at birth in women but not in men. There was also a significant positive association between cortisol and ponderal index in both genders. We found that the association between foetal growth on fasting total and free cortisol concentrations differed in subjects born at different gestational ages. In subjects born before 39 weeks of gestation, both total and free cortisol showed inverse correlations with birthweight (P = 0·02 and P = 0·09, respectively) and length at birth (P = 0·001 and P = 0·02), whereas in subjects born after 40 weeks of gestation there were positive correlations with birthweight (P = 0·06 and P = 0·002) and ponderal index at birth (P = 0·003 and P = 0·003). The interactions between birthweight and gestational age were statistically significant (P = 0·01 for total and P = 0·003 for free cortisol).
Conclusions: These data suggest that the relationship between size at birth and cortisol concentrations in adult life is different in subjects born at different gestational ages: both hyper- and hypocortisolism may arise as a consequence of foetal programming of the hypothalamic–pituitary–adrenal axis during intrauterine life.

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Citation

Kajantie, Eero, Phillips, David I.W., Andersson, Sture, Barker, David J.P., Dunkel, Leo, Forsen, Tom, Osmond, Clive, Tuominen, Juha, Wood, Peter J. and Eriksson, Johan (2002) Size at birth, gestational age and cortisol secretion in adult life: foetal programming of both hyper- and hypocortisolism? Clinical Endocrinology, 57, (5), pp. 635-641. (doi:10.1046/j.1365-2265.2002.01659.x).

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Published date: 2002

Identifiers

Local EPrints ID: 25684
URI: http://eprints.soton.ac.uk/id/eprint/25684
PURE UUID: cbcc8abd-13ba-445b-9aef-36cefdf047d3
ORCID for Clive Osmond: ORCID iD orcid.org/0000-0002-9054-4655

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Date deposited: 11 Apr 2006
Last modified: 17 Jul 2017 16:09

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Contributors

Author: Eero Kajantie
Author: David I.W. Phillips
Author: Sture Andersson
Author: David J.P. Barker
Author: Leo Dunkel
Author: Tom Forsen
Author: Clive Osmond ORCID iD
Author: Juha Tuominen
Author: Peter J. Wood
Author: Johan Eriksson

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