Transfer of Lead via Placenta and Breast Milk in Human

LI PING-JIAN; SHENG YE-ZHOU; WANG QIAN-YING; GU LI-YA; WANG YI-LAN

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Volume 13 Issue 2

Jun. 2000

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Article Navigation > Biomedical and Environmental Sciences > 2000 > 13(2): 85-89

LI PING-JIAN, SHENG YE-ZHOU, WANG QIAN-YING, GU LI-YA, WANG YI-LAN. Transfer of Lead via Placenta and Breast Milk in Human[J]. Biomedical and Environmental Sciences, 2000, 13(2): 85-89.

Citation:

LI PING-JIAN, SHENG YE-ZHOU, WANG QIAN-YING, GU LI-YA, WANG YI-LAN. Transfer of Lead via Placenta and Breast Milk in Human[J]. Biomedical and Environmental Sciences, 2000, 13(2): 85-89.

Transfer of Lead via Placenta and Breast Milk in Human

Department of Occupational Heath, Shanghai Medical University, P. O.Box 288, Shanghai 200032, China
Shanghai Women Health Care Hospital, Shanghai 200032, China
Shanghai Rehui District Hospital, Shanghai 200032, China

Abstract

The mean lead levels in the maternal blood, cord blood, breast milk and placental tissue, were 0.63 μmol/L (13.2 μg/dL), 0.33 μmol/L (6.90 μg/dL), 4.74 μg/L and 0.86 μmol/kg (17.85 μg/100g) respectively for 165 parturient women occupationally non-exposed to lead in 2 hospitals in Shanghai. No significant difference was found between maternal age groups for these indicators. However, the lead levels in the cord blood and breast milk increased with the lead level in the maternal blood, with coefficient of correlation of 0.714 (P＜0.0001) and 0.353 (P＜0.01) respectively. The mean concentration of lead in breast milk for 12 occupationally lead exposed women was 52.7 μg/L, which was almost 12 times higher than that for the occupationally non-exposed population. These results suggested that transfer of lead via placenta prenatally and breast milk postnatally were possible and might pose a potential health hazard to the fetuses and the neonates.
- cord blood,
- health hazard,
- transfer of,
- age groups
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Transfer of Lead via Placenta and Breast Milk in Human

Department of Occupational Heath, Shanghai Medical University, P. O.Box 288, Shanghai 200032, China

Shanghai Women Health Care Hospital, Shanghai 200032, China

Shanghai Rehui District Hospital, Shanghai 200032, China

Key words:

Abstract: The mean lead levels in the maternal blood, cord blood, breast milk and placental tissue, were 0.63 μmol/L (13.2 μg/dL), 0.33 μmol/L (6.90 μg/dL), 4.74 μg/L and 0.86 μmol/kg (17.85 μg/100g) respectively for 165 parturient women occupationally non-exposed to lead in 2 hospitals in Shanghai. No significant difference was found between maternal age groups for these indicators. However, the lead levels in the cord blood and breast milk increased with the lead level in the maternal blood, with coefficient of correlation of 0.714 (P＜0.0001) and 0.353 (P＜0.01) respectively. The mean concentration of lead in breast milk for 12 occupationally lead exposed women was 52.7 μg/L, which was almost 12 times higher than that for the occupationally non-exposed population. These results suggested that transfer of lead via placenta prenatally and breast milk postnatally were possible and might pose a potential health hazard to the fetuses and the neonates.

LI PING-JIAN, SHENG YE-ZHOU, WANG QIAN-YING, GU LI-YA, WANG YI-LAN. Transfer of Lead via Placenta and Breast Milk in Human[J]. Biomedical and Environmental Sciences, 2000, 13(2): 85-89.

Citation:

LI PING-JIAN, SHENG YE-ZHOU, WANG QIAN-YING, GU LI-YA, WANG YI-LAN. Transfer of Lead via Placenta and Breast Milk in Human[J]. Biomedical and Environmental Sciences, 2000, 13(2): 85-89.