Rosmalen JGM, Oldehinkel AJ, Ormel J, De Winter AF, Buitelaar JK, Verhulst FC › Trails

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Determinants of salivary cortisol levels in 10-12 year old children; a population-based study of individual differences

Authors: Rosmalen JGM, Oldehinkel AJ, Ormel J, De Winter AF, Buitelaar JK, Verhulst FC

The hypothalamic–pituitary–adrenal (HPA)-axis is a central component of the body’s neuroendocrine response to stress. Its major end-product cortisol has profound effects on mood and behavior. Although it has often been suggested, it remains unknown whether differences in HPA-axis physiology are part of an individual’s vulnerability to psychopathology, and constitute a causal factor in its development. In order to study the contribution of HPA-axis physiology to the development of psychopathology, we measured HPA-axis physiology in a community-cohort of 1768 10–12 year-old children. The aims of the here presented study were twofold: (1) to obtain data on HPA-axis function in a large cohort of pre-and early-adolescent children, both in terms of total hormonal output and in terms of the dynamics of cortisol secretion (by means of the cortisol awakening response); and (2) to study potential confounders of the cortisol-psychopathology relationship in this age group, such as season of sampling, age, gender, pubertal development, perinatal variables and BMI.

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