Intrauterine Exposure to Low Levels of Lead: The Status of the Neonate
- 1 October 1986
- journal article
- research article
- Published by Taylor & Francis in Archives of environmental health
- Vol. 41 (5), 287-291
- https://doi.org/10.1080/00039896.1986.9936698
Abstract
It has been suggested that lead (Pb) at low exposure levels is a behavioral teratogen. Blood lead (Pb-B) was measured in 185 samples of maternal blood and in 162 samples of cord blood drawn from members of a cohort of mother-infant pairs. Routine newborn assessments, an examination for minor anomalies, the Brazelton Neonatal Behavioral Assessment (NBAS), and part of the Graham/Rosenblith Behavioral Examination (G/R) were administered. Maternal and cord Pb-B correlated 0.80. In regression analyses, Apgar scores, birthweight, length, head circumference, neonatal anomalies, and seven behavioral scales were unrelated to either maternal or cord Pb-B. Three scales—the NBAS Abnormal Reflexes, the G/R Neurological Soft Sign, and the G/R Muscle Tonus Scales—were related minimally to either cord or maternal Pb-B. Because of the contrast in maternal and cord results, despite the high correlation of maternal and cord Pb-B, the data were reanalyzed for 132 cases with paired data. Only the Soft Sign Scale remained significant and that only for cord, but not maternal Pb-B. Regression analysis revealed a suppression with the Soft Sign Scale related to the variance of the cord Pb-B that was not common with maternal Pb-B. The possibility that the fetus under stress tends to accumulate Pb was considered.This publication has 22 references indexed in Scilit:
- Occupational and environmental risks in and around a smelter in northern SwedenHereditas, 2009
- Fetal lead exposure: Antenatal factorsEnvironmental Research, 1985
- Alcohol-Related Birth Defects: Syndromal Anomalies, Intrauterine Growth Retardation, and Neonatal Behavioral AssessmentAlcohol, Clinical and Experimental Research, 1985
- Behavioral effects of moderate lead exposure in children and animal models: Part 1, clinical studiesCRC Critical Reviews in Toxicology, 1980
- A simplified score for assessment of fetal maturation of newly born infantsThe Journal of Pediatrics, 1979
- Maternal lead exposure and blood lead concentration in infancyThe Journal of Pediatrics, 1978
- Placental transfer of lead, mercury, cadmium, and carbon monoxide in womenEnvironmental Research, 1978
- Placental transfer of lead, mercury, cadmium, and carbon monoxide in womenEnvironmental Research, 1978
- Placental transfer of lead and its effects on the newbornPostgraduate Medical Journal, 1977
- Lead concentrations in the newborn infantThe Journal of Pediatrics, 1972