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- Petraitienė, I., et al.
(författare)
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Adrenal function in adolescence is related to intrauterine and postnatal growth
- 2019
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Ingår i: Medicina. - : MDPI AG. - 1010-660X .- 1648-9144. ; 55:5
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Tidskriftsartikel (refereegranskat)abstract
- Background and objectives: Intrauterine growth restriction is thought to be implicated in long-term programming of hypothalamic–pituitary–adrenal axis activity. We investigated adrenal function in adolescents born small for gestational age (SGA) in relation to their postnatal growth and cardiovascular parameters. Materials and Methods: Anthropometric parameters, blood pressure, heart rate, dehydroepiandrosterone sulfate (DHEAS), and cortisol levels were assessed in 102 adolescents aged 11–14 years followed from birth (47 SGA and 55 born appropriate for gestational age (AGA)). Results: Mean DHEAS levels were higher in SGA adolescents with catch-up growth (SGACU+), compared with AGA. Second-year height velocity and body mass index (BMI) gain during preschool years were positively related to DHEAS levels. Morning cortisol levels and systolic and diastolic blood pressure were higher in SGA adolescents without catch-up growth (SGACU−) compared with AGA. Second-year BMI gain was inversely, and 2–12 years increase in subscapular skinfold thickness was directly associated with cortisol levels. Size at birth and postnatal growth explained 47.8% and 38.2% of variation in DHEAS and cortisol levels, respectively. Conclusion: Adrenal function in adolescence is affected by prenatal and postnatal growth: small size at birth with postnatal catch-up growth is related to higher DHEAS secretion, whereas increased cortisol levels and blood pressure are higher in short SGA adolescents. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.
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| 2. |
- Petraitiene, I., et al.
(författare)
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Sex Hormones, Gonad Size, and Metabolic Profile in Adolescent Girls Born Small for Gestational Age with Catch-up Growth
- 2020
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Ingår i: Journal of Pediatric and Adolescent Gynecology. - : Elsevier BV. - 1083-3188. ; 33:2, s. 125-132
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Tidskriftsartikel (refereegranskat)abstract
- Study Objective: To characterize and compare sex hormone concentrations, and uterine and ovarian volumes in adolescent girls born small for gestational age (SGA) who had experienced catch-up growth and girls born at a size appropriate for gestational age (AGA), and to investigate the association between these parameters and glucose metabolism, perinatal factors, and early growth. Design: A prospective, longitudinal, observational study from birth until adolescence. Setting: Mean age at final assessment was 12.7 +/- 0.1 years. Participants: We followed 55 girls (20 SGA, 35 AGA). Interventions and Main Outcome Measures: Sex hormone concentrations (gonadotropins, estradiol, testosterone, and sex hormone binding globulin) were analyzed, and the oral glucose tolerance test conducted. Uterine and ovarian sizes were assessed using pelvic ultrasound. Results: Uterine and ovarian volumes were smaller in SGA-born compared with AGA-born girls (P = .013 and P = .039, respectively). SGA girls had lower sex hormone binding globulin levels (P = .039) and higher testosterone levels (P = .003), free androgen index (P < .001), and glycemia 2 hours post glucose load (P = .005) compared with AGA-born girls. Birth weight and early infancy height velocity explained 37.4% of variation in ovarian volume (P = .004), and body mass index at birth, increase in peripheral skinfold thickness during second year of life, and early childhood height velocity explained 43.2% of variation in testosterone levels in adolescence (P = .006). Conclusion: SGA-born girls who experienced catch-up growth remain at risk of biochemical hyperandrogenism in adolescence, and have reduced uterine and ovarian volumes, which might influence future reproductive function. Ovarian size and androgen levels in adolescence might be influenced by early growth and subcutaneous fat deposition.
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