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Published on: January 12, 2019
The serum concentrations of perfluoroalkyl compounds were inversely associated with growth parameters in 2-year old
Young Ah Lee1, Jin Hee Kim2, Hae Woon Jung3
1Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
Insights
Serum perfluoroalkyl compounds (PFCs) were inversely associated with growth in 2-year-old Korean children. Higher PFC levels correlated with reduced height and weight, suggesting potential developmental impacts from these environmental contaminants.
Area of Science:
- Environmental Health
- Pediatric Growth
- Toxicology
Background:
- Perfluoroalkyl compounds (PFCs) are persistent environmental contaminants with potential health effects.
- Understanding the impact of prenatal and early-life exposure to PFCs on child development is crucial.
Purpose of the Study:
- To investigate the association between serum concentrations of various PFCs and growth parameters (height and weight) in 2-year-old Korean children.
- To explore potential correlations between breastfeeding duration and serum PFC levels.
Main Methods:
- Cross-sectional study involving 361 Korean children aged 22-27 months.
- Measurement of serum concentrations for seven PFCs: PFHxS, PFOS, PFOA, PFNA, PFDA, PFUnDA, and PFHpA.
- Statistical analysis to assess relationships between PFC levels, growth parameters, and breastfeeding duration, adjusting for covariates.
Main Results:
- Seven PFCs were detected in most serum samples, with high detection rates for PFHxS, PFOS, PFOA, and PFNA.
- Breastfeeding duration showed a positive association with serum concentrations of all measured PFCs.
- Serum concentrations of PFHxS, PFOS, PFOA, PFNA, and PFDA were inversely associated with height at 2 years of age.
- Serum PFNA concentration was inversely associated with weight at 2 years of age.
Conclusions:
- Serum PFC concentrations are inversely associated with height and weight in 2-year-old children.
- Breastfeeding may contribute to early-life PFC exposure.
- These findings highlight the potential impact of environmental contaminants on early childhood growth and development.
Abstract:
The relationship between the serum concentrations of perfluoroalkyl compounds (PFCs) and growth parameters was investigated in 2-year-old Korean children. The study included 361 children aged 2years (192 boys and 169 girls; 22-27months), born at term appropriate-for-gestational-age, who visited between 2012 and 2013. Growth parameters of height and weight, and serum samples were collected from 2-year-old children. Four PFCs (perfluorohexane sulfonic acid [PFHxS], perfluorooctane sulfonic acid [PFOS], perfluorooctanoic acid [PFOA], and perfluorononanoic acid [PFNA]), perfluorodecanoic acid (PFDA), perfluoroundecanoic acid (PFUnDA), and perfluoroheptanoic acid (PFHpA) were detected in >99, 93.4, 89.8, and 74.2% of the serum samples, respectively. The duration of breastfeeding was positively associated with the serum concentrations of ln-transformed PFHxS, PFOS, PFHpA, PFOA, PFNA, PFDA, and PFUnDA (all P<0.001). Height at 2years of age was inversely related to PFHxS, PFOS, PFOA, PFNA, and PFDA concentrations (adjusted β per ln unit [95% confidence interval, CI]: -0.84 [-1.26, -0.42], -0.77 [-1.27, -0.15], -0.91 [-1.36, -0.47], -0.48 [-1.40, -0.51], and -0.44 [-0.77, -0.10] cm, respectively), after adjusting for age, sex, and midparental height. Weight at 2years of age was inversely associated with PFNA (adjusted β per ln unit [95% CI]: -0.32 [-0.48, -0.15] kg), after adjusting for age, sex, and parental BMI. In conclusion, the serum concentrations of PFCs were inversely associated with growth parameters in 2-year-old children.
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