Pediatric pulmonology · 2024
BMI increase during early childhood in boys with cystic fibrosis and early adrenarche.
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Tamer Gizem, Arets Hubertus Gerardus Maria, van der Ent Cornelis Kors, van Santen Hanneke Margo, van der Kamp Hetty Jacoba
Аннотация
BACKGROUND: Increase in body mass index (BMI) in early childhood (1-6 years) was found to be a contributing factor for impaired final height in boys with Cystic Fibrosis (CF). Early adrenarche (before age 9 years in boys) may contribute to an impaired final height by triggering an early acceleration of bone age resulting in a compromised growth spurt during puberty. We aimed to analyze the timing of adrenarche in boys with CF and to associate BMI increase in early childhood to timing of adrenarche.
METHODS: Boys with CF, aged 8-9 years, visiting the CF expertize center Utrecht were included. Since 2018, anthropomorphic, pubertal and endocrine data were collected. Early adrenarche in boys was defined as a dehydroepiandrosterone sulfate (DHEAS) ≥ 1 µmol/L before the age of 9 years.
RESULTS: Thirteen boys (mean age 8.55 ± 0.27 years) were enrolled. The median (IQR) DHEAS-level was 1.3 µmol/L (0.71-2.40). Eight boys (61.5%) had an early rise in DHEAS-levels ≥ 1 µmol/L. Mean increase in BMI Z-score between 1 and 6 years of age (ΔBMI1-6) was -0.07 ± 0.86. A significant correlation was found between ΔBMI1-6 and DHEAS-levels at the age of 8-9 years (r = 0.624, p = 0.040). In five boys with early rise in DHEAS, accelerated bone age was found (average 1.55 ± 0.96 years).
CONCLUSION: In this small cohort, 61.5% of boys with CF between 8 and 9 years had an early rise of DHEAS, which was correlated to ΔBMI1 -6 between 1 and 6 years. Early adrenarche may be caused by ΔBMI1 -6.
METHODS: Boys with CF, aged 8-9 years, visiting the CF expertize center Utrecht were included. Since 2018, anthropomorphic, pubertal and endocrine data were collected. Early adrenarche in boys was defined as a dehydroepiandrosterone sulfate (DHEAS) ≥ 1 µmol/L before the age of 9 years.
RESULTS: Thirteen boys (mean age 8.55 ± 0.27 years) were enrolled. The median (IQR) DHEAS-level was 1.3 µmol/L (0.71-2.40). Eight boys (61.5%) had an early rise in DHEAS-levels ≥ 1 µmol/L. Mean increase in BMI Z-score between 1 and 6 years of age (ΔBMI1-6) was -0.07 ± 0.86. A significant correlation was found between ΔBMI1-6 and DHEAS-levels at the age of 8-9 years (r = 0.624, p = 0.040). In five boys with early rise in DHEAS, accelerated bone age was found (average 1.55 ± 0.96 years).
CONCLUSION: In this small cohort, 61.5% of boys with CF between 8 and 9 years had an early rise of DHEAS, which was correlated to ΔBMI1 -6 between 1 and 6 years. Early adrenarche may be caused by ΔBMI1 -6.