Maternal prenatal licorice consumption alters hypothalamic-pituitary-adrenocortical axis function in children

Katri Räikkönen, Jonathan R Seckl, Kati Heinonen, Riikka Pyhälä, Kimmo Feldt, Alexander Jones, Anu-Katriina Pesonen, David I W Phillips, Jari Lahti, Anna-Liisa Järvenpää, Johan G Eriksson, Karen A Matthews, Timo E Strandberg, Eero Kajantie

Research output: Contribution to journalArticlepeer-review

Abstract

Overexposure to glucocorticoids has been proposed as a mechanism by which prenatal adversity 'programs' the function of the hypothalamic pituitary adrenocortical axis (HPAA), thereby increasing the risk of adult diseases. Glycyrrhizin, a natural constituent of licorice, potently inhibits 11 beta-hydroxysteroid dehydrogenase type 2, the feto-placental barrier to the higher maternal cortisol levels. We studied if maternal consumption of glycyrrhizin in licorice associates with HPAA function in children. Diurnal salivary cortisol and salivary cortisol during the Trier Social Stress Test for Children (TSST-C) were measured in children (n = 321, mean age = 8.1, SD = 0.3 years) whose mothers consumed varying levels of glycyrrhizin in licorice during pregnancy; exposure-level groups were labeled high (>= 500 mg/week), moderate (250-499 mg/week) and zero low (0-249 mg/week). In comparison to the zero low exposure group, children in the high exposure group had 19.2% higher salivary cortisol awakening peak, 33.1% higher salivary cortisol awakening slope, 15.4% higher salivary cortisol awakening area under the curve (AUC), 30.8% higher baseline TSST-C salivary cortisol levels, and their salivary cortisol levels remained high throughout the TSST-C protocol (P-values <0.05). These effects appeared dose-related. Our findings lend support to prenatal 'programming' of HPAA function by overexposure to glucocorticoids. (C) 2010 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1587-1593
Number of pages7
JournalPsychoneuroendocrinology
Volume35
Issue number10
DOIs
Publication statusPublished - Nov 2010

Keywords

  • 11-beta-Hydroxysteroid Dehydrogenase Type 2
  • Adult
  • Area Under Curve
  • Child
  • Circadian Rhythm
  • Dose-Response Relationship, Drug
  • Female
  • Glycyrrhiza
  • Glycyrrhizic Acid
  • Humans
  • Hydrocortisone
  • Hypothalamo-Hypophyseal System
  • Male
  • Pituitary-Adrenal System
  • Pregnancy
  • Prenatal Exposure Delayed Effects
  • Saliva
  • Stress, Psychological

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