PMID- 12773773 OWN - NLM STAT- MEDLINE DCOM- 20040217 LR - 20161124 IS - 1096-6080 (Print) IS - 1096-0929 (Linking) VI - 74 IP - 2 DP - 2003 Aug TI - Exposure to perfluorooctane sulfonate during pregnancy in rat and mouse. I: maternal and prenatal evaluations. PG - 369-81 AB - The maternal and developmental toxicities of perfluorooctane sulfonate (PFOS, C8F17SO3-) were evaluated in the rat and mouse. PFOS is an environmentally persistent compound used as a surfactant and occurs as a degradation product of both perfluorooctane sulfonyl fluoride and substituted perfluorooctane sulfonamido components found in many commercial and consumer applications. Pregnant Sprague-Dawley rats were given 1, 2, 3, 5, or 10 mg/kg PFOS daily by gavage from gestational day (GD) 2 to GD 20; CD-1 mice were similarly treated with 1, 5, 10, 15, and 20 mg/kg PFOS from GD 1 to GD 17. Controls received 0.5% Tween-20 vehicle (1 ml/kg for rats and 10 ml/kg for mice). Maternal weight gain, food and water consumption, and serum chemistry were monitored. Rats were euthanized on GD 21 and mice on GD 18. PFOS levels in maternal serum and in maternal and fetal livers were determined. Maternal weight gains in both species were suppressed by PFOS in a dose-dependent manner, likely attributed to reduced food and water intake. Serum PFOS levels increased with dosage, and liver levels were approximately fourfold higher than serum. Serum thyroxine (T4) and triiodothyronine (T3) in the PFOS-treated rat dams were significantly reduced as early as one week after chemical exposure, although no feedback response of thyroid-stimulating hormone (TSH) was observed. A similar pattern of reduction in T4 was also seen in the pregnant mice. Maternal serum triglycerides were significantly reduced, particularly in the high-dose groups, although cholesterol levels were not affected. In the mouse dams, PFOS produced a marked enlargement of the liver at 10 mg/kg and higher dosages. In the rat fetuses, PFOS was detected in the liver but at levels nearly half of those in the maternal counterparts, regardless of administered doses. In both rodent species, PFOS did not alter the numbers of implantations or live fetuses at term, although small deficits in fetal weight were noted in the rat. A host of birth defects, including cleft palate, anasarca, ventricular septal defect, and enlargement of the right atrium, were seen in both rats and mice, primarily in the 10 and 20 mg/kg dosage groups, respectively. Our results demonstrate both maternal and developmental toxicity of PFOS in the rat and mouse. FAU - Thibodeaux, Julie R AU - Thibodeaux JR AD - Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA. FAU - Hanson, Roger G AU - Hanson RG FAU - Rogers, John M AU - Rogers JM FAU - Grey, Brian E AU - Grey BE FAU - Barbee, Brenda D AU - Barbee BD FAU - Richards, Judy H AU - Richards JH FAU - Butenhoff, John L AU - Butenhoff JL FAU - Stevenson, Lisa A AU - Stevenson LA FAU - Lau, Christopher AU - Lau C LA - eng PT - Journal Article DEP - 20030528 PL - United States TA - Toxicol Sci JT - Toxicological sciences : an official journal of the Society of Toxicology JID - 9805461 RN - 0 (Alkanesulfonic Acids) RN - 0 (Fluorocarbons) RN - 0 (Teratogens) RN - 0 (Triglycerides) RN - 06LU7C9H1V (Triiodothyronine) RN - 9H2MAI21CL (perfluorooctane sulfonic acid) RN - Q51BO43MG4 (Thyroxine) SB - IM EIN - Toxicol Sci. 2004 Nov;82(1):359 MH - *Abnormalities, Drug-Induced MH - Administration, Oral MH - Alkanesulfonic Acids/administration & dosage/pharmacokinetics/*toxicity MH - Animals MH - Body Weight/drug effects MH - Dose-Response Relationship, Drug MH - Drinking/drug effects MH - Eating/drug effects MH - Female MH - Fetal Weight/drug effects MH - Fetus/drug effects/metabolism MH - Fluorocarbons/administration & dosage/pharmacokinetics/*toxicity MH - Liver/drug effects/pathology MH - *Maternal Exposure MH - Mice MH - Mice, Inbred Strains MH - Organ Size/drug effects MH - Pregnancy/blood MH - Rats MH - Rats, Sprague-Dawley MH - Reproduction/*drug effects MH - Teratogens/pharmacokinetics/*toxicity MH - Thyroxine/blood MH - Triglycerides/blood MH - Triiodothyronine/blood EDAT- 2003/05/30 05:00 MHDA- 2004/02/18 05:00 CRDT- 2003/05/30 05:00 PHST- 2003/05/30 05:00 [pubmed] PHST- 2004/02/18 05:00 [medline] PHST- 2003/05/30 05:00 [entrez] AID - kfg121 [pii] AID - 10.1093/toxsci/kfg121 [doi] PST - ppublish SO - Toxicol Sci. 2003 Aug;74(2):369-81. doi: 10.1093/toxsci/kfg121. Epub 2003 May 28.