Article ; Online: In utero exposure to arsenite contributes to metabolic and reproductive dysfunction in male offspring of CD-1 mice.
Reproductive toxicology (Elmsford, N.Y.)
2020 Volume 95, Page(s) 95–103
Abstract: In utero exposure to arsenite (iAs) is known to increase disease risks later in life. We investigated the effect of in utero exposure to iAs in the drinking water on metabolic and reproductive parameters in male mouse offspring at postnatal and adult ... ...
| Abstract | In utero exposure to arsenite (iAs) is known to increase disease risks later in life. We investigated the effect of in utero exposure to iAs in the drinking water on metabolic and reproductive parameters in male mouse offspring at postnatal and adult stages. Pregnant CD-1 mice were exposed to iAs (as sodium arsenite) in the drinking water at 0 (control), 10 ppb (EPA standard for drinking water), and 42.5 ppm (tumor-inducing dose in mice) from embryonic day (E) 10-18. At birth, pups were fostered to unexposed females. Male offspring exposed to 10 ppb in utero exhibited increase in body weight at birth when compared to controls. Male offspring exposed to 42.5 ppm in utero showed a tendency for increased body weight and a smaller anogenital distance. The body weight in iAs-exposed pups continued to increase significantly compared to control at 3 weeks and 11 weeks of age. At 5 months of age, iAs-exposed males exhibited greater body fat content and glucose intolerance. Male offspring exposed to 10 ppb in utero had higher circulating levels of leptin compared to control. In addition, males exposed to 42.5 ppm in utero exhibited decreased total number of pups born compared to controls and lower average number of litters sired over a six-month period. These results indicate that in utero exposure to iAs at either human relevant concentration or tumor-inducing concentration is a potential cause of developmental origin of metabolic and reproductive dysfunction in adult male mice. |
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| MeSH term(s) | Animals ; Arsenites/toxicity ; Body Weight/drug effects ; Female ; Fertility/drug effects ; Glucose/metabolism ; Leptin/blood ; Male ; Maternal-Fetal Exchange ; Mice ; Pregnancy ; Prenatal Exposure Delayed Effects ; Spermatozoa/drug effects ; Testis/drug effects ; Testis/metabolism ; Testis/pathology |
| Chemical Substances | Arsenites ; Leptin ; Glucose (IY9XDZ35W2) ; arsenite (N5509X556J) |
| Language | English |
| Publishing date | 2020-05-17 |
| Publishing country | United States |
| Document type | Journal Article |
| ZDB-ID | 639342-1 |
| ISSN | 1873-1708 ; 0890-6238 |
| ISSN (online) | 1873-1708 |
| ISSN | 0890-6238 |
| DOI | 10.1016/j.reprotox.2020.05.006 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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