Perfluorooctanoate exposure and major birth defects.
Cheryl R Stein1, David A Savitz2, Beth Elston2
1Department of Preventive Medicine, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1057, New York, NY 10029-6574, United States.
Reproductive Toxicology (Elmsford, N.Y.)
|May 8, 2014
Summary
Prenatal exposure to perfluorooctanoic acid (PFOA) was not generally linked to birth defects. A potential association with brain defects warrants further investigation, though findings were based on limited cases.
Area of Science:
- Environmental Health
- Toxicology
- Reproductive Health
Background:
- Perfluorooctanoic acid (PFOA) is a persistent environmental contaminant found in umbilical cord blood and amniotic fluid.
- Toxicological studies suggest perfluoroalkyl substances may possess teratogenic properties.
- Community exposure to PFOA through contaminated drinking water necessitates investigation into its developmental effects.
Purpose of the Study:
- To examine the association between estimated prenatal PFOA concentration and maternally reported birth defects.
- To analyze data from the C8 Health Project, a survey conducted in a Mid-Ohio Valley community.
- To assess potential risks to fetal development from environmental PFOA exposure.
Main Methods:
- Utilized data from 10,262 live births between 1990 and 2006.
- Employed logistic regression models with generalized estimating equations to account for sibling data.
- Estimated prenatal PFOA concentrations based on community exposure levels.
Main Results:
- Generally, no significant association was observed between estimated PFOA concentration and overall birth defects.
- A potential, though uncertain, association was noted for brain defects (OR 2.6, 95% CI 1.3-5.1).
- The observed association for brain defects was based on a small number of cases (n=13) and may be a chance finding.
Conclusions:
- Prenatal PFOA exposure does not appear to be broadly associated with birth defects in this cohort.
- The potential link between PFOA and brain defects requires further research due to limited evidence.
- Continued monitoring and research on PFOA's developmental toxicity are warranted.
Related Concept Videos
01:07Teratogenicity
4.2K
The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
4.2K
01:28Development of the Oral Microbiota
65
The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
65
01:36Types of Toxins
3.7K
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
3.7K