Association between prenatal exposure to trace elements mixture and visual acuity in infants: A prospective birth cohort study

Wang, Zijin; Dou, Yuanyan; Guo, Wenhui; Lin, Yuan; Jiang, Yangqian; Jiang, Tao; Qin, Rui; Lv, Hong; Lü, Qun; Jin, Guangfu; Ma, Hongxia; Hu, Zhibin; Hu, Liu; Du, Jiangbo

doi:10.1016/j.chemosphere.2023.138905

Cited by 5 publications

(2 citation statements)

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Section: Discussioncontrasting

confidence: 81%

“…The elements Mn, Co, As, Hg, Tl, and Pb in late pregnancy were higher in our study; Sn was similar; and Cd was lower. Compared with the urinary concentrations of elements in nationally representative Chinese pregnant women reported in the China National Birth Cohort, 33 the elements Mn, Cu, Zn, Hg, and Pb in early pregnancy were higher in our study; the elements Co and Tl were similar; and the elements V, Cr, Ni, As, Mo, Cd and Sn were lower. Six growth trajectories based on LAZ were identified in our study: 9.2% of infants were classified in low-stable group; 37.0% in moderate-stable group; 17.3% in moderate-rising group; 13.6% in high-falling group; 16.5% in high-stable group; and 5.3% in extreme high-stable group.…”

Section: ■ Discussioncontrasting

confidence: 81%

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Maternal Exposure to Trace Elements, Toxic Metals, and Longitudinal Changes in Infancy Anthropometry and Growth Trajectories: A Prospective Cohort Study

Zhang

Wei

Guan

et al. 2023

Environ. Sci. Technol.

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Exploration of stage-specific effects of maternal exposure to trace elements and toxic metals on infancy continuous growth and trajectories is critical for early-life health management. Within a Chinese prospective cohort in 2014–2015, a total of 919 mother–infant pairs were included, and the urinary levels of 17 elements including vanadium (V), chromium (Cr), manganese, iron, cobalt, nickel, copper, zinc, arsenic, molybdenum, palladium, cadmium, tin, gold, mercury, thallium, and lead in early (mean: 11.9 weeks), and late pregnancy (mean: 32.4 weeks) were assessed. Standardized anthropometric assessments of infants were conducted at 1, 3, 6, 8, and 12 months of age. A three-step longitudinal and high-dimensional data analysis procedure was carried out to estimate the impacts of exposome on dynamic growth. Early-pregnancy exposures to V and Cr were positively associated with repeated measurements of length-for-age z-scores (LAZ). Six trajectories were identified based on LAZ. Maternal single exposure to V and Cr as well as mixed exposure to trace elements in early pregnancy were associated with raised odds for the high-stable group. Our results suggested positive associations between maternal trace element exposome and infancy dynamic growth. V and Cr were the key elements and the early pregnancy might be the critical window.

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Section: Discussioncontrasting

confidence: 81%

Section: ■ Discussioncontrasting

confidence: 81%