期刊
CRITICAL REVIEWS IN TOXICOLOGY
卷 46, 期 4, 页码 279-331出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/10408444.2015.1122573
关键词
Asthma; autoimmune diseases; CAS No; 335-67-1; CAS No; 1763-23-1; epidemiology; hypersensitivity; immune system; immunization; immunological factors; infection; perfluoroalkyl substances; polyfluoroalkyl substances
类别
资金
- 3M Company
- 3M
- Exponent, an international science and engineering company
- Exponent
Whether perfluorooctanoate (PFOA) and perfluorooctanesulfonate (PFOS), two widely used and biopersistent synthetic chemicals, are immunotoxic in humans is unclear. Accordingly, this article systematically and critically reviews the epidemiologic evidence on the association between exposure to PFOA and PFOS and various immune-related health conditions in humans. Twenty-four epidemiologic studies have reported associations of PFOA and/or PFOS with immune-related health conditions, including ten studies of immune biomarker levels or gene expression patterns, ten studies of atopic or allergic disorders, five studies of infectious diseases, four studies of vaccine responses, and five studies of chronic inflammatory or autoimmune conditions (with several studies evaluating multiple endpoints). Asthma, the most commonly studied condition, was evaluated in seven studies. With few, often methodologically limited studies of any particular health condition, generally inconsistent results, and an inability to exclude confounding, bias, or chance as an explanation for observed associations, the available epidemiologic evidence is insufficient to reach a conclusion about a causal relationship between exposure to PFOA and PFOS and any immune-related health condition in humans. When interpreting such studies, an immunodeficiency should not be presumed to exist when there is no evidence of a clinical abnormality. Large, prospective studies with repeated exposure assessment in independent populations are needed to confirm some suggestive associations with certain endpoints.
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