PMID- 15954084 OWN - NLM STAT- MEDLINE DCOM- 20051107 LR - 20151119 IS - 1542-9733 (Print) IS - 1542-9733 (Linking) VI - 74 IP - 3 DP - 2005 Jun TI - Postnatal development of rat pups after maternal exposure to diethanolamine. PG - 243-54 AB - BACKGROUND: Diethanolamine (DEA), a widely used surfactant, was administered to pregnant mice at the oral LD10 resulting in failure of pups to grow and thrive through postnatal day (PND) 3 [National Toxicology Program, 1987; York et al., Teratology 37:503-504, 1988]. The toxicity profile for DEA differs among rodent species. This study investigated DEA-induced postnatal toxicity in a second species. METHODS: Timed-mated Sprague-Dawley rats were dosed (0, 50, 125, 200, 250, or 300 mg DEA/kg/day, p.o.) on gestational days (GD) 6-19. Dams and pups were monitored for body weight, feed/water intake, clinical signs, litter size, and sex ratio. At necropsy (PND 21), maternal liver and kidney weights and number of uterine implantation sites were recorded. RESULTS: The high-dose group was terminated early due to excessive toxicity. The estimated maternal LD10 was 218 mg/kg/day. Maternal effects included decreased body weight and relative feed intake (>or=200 mg/kg/day), transiently reduced relative water intake (125 and 250 mg/kg/day), and increased absolute kidney weight (>or=125 mg/kg/day). Postimplantation loss (PND 0) and pup mortality (PND 0-4) were increased (>or=200 and >or=125 mg/kg/day, respectively). Pup body weight was reduced (>or=200 mg/kg/day) as late as PND 21. CONCLUSIONS: This study demonstrates reduced postnatal growth and survival in a second species after gestational exposure to DEA, persistence of toxic effects through the end of lactation, possibly due to long elimination half-life, and maternal and developmental toxicity no-observed-adverse-effect level (NOAELs) (50 mg/kg/day) and lowest-observed-adverse-effect level (LOAELs) (125 mg/kg/day) for oral DEA exposure during embryo/fetal development in the rat. CI - Copyright (c) 2005 Wiley-Liss, Inc. FAU - Price, Catherine J AU - Price CJ AD - Life Sciences and Toxicology, RTI International, Research Triangle Park, North Carolina 27709-2194, USA. cjp@rti.org FAU - Marr, Melissa C AU - Marr MC FAU - Myers, Christina B AU - Myers CB FAU - Jahnke, Gloria D AU - Jahnke GD LA - eng GR - N01-ES-65405/ES/NIEHS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Birth Defects Res B Dev Reprod Toxicol JT - Birth defects research. Part B, Developmental and reproductive toxicology JID - 101155115 RN - 0 (Ethanolamines) RN - AZE05TDV2V (diethanolamine) SB - IM MH - Animals MH - Animals, Newborn MH - Body Weight/drug effects MH - Eating/drug effects MH - Ethanolamines/*toxicity MH - Female MH - Growth and Development/drug effects MH - *Maternal Exposure MH - No-Observed-Adverse-Effect Level MH - Organ Size/drug effects MH - Pregnancy MH - Rats MH - Rats, Sprague-Dawley EDAT- 2005/06/15 09:00 MHDA- 2005/11/08 09:00 CRDT- 2005/06/15 09:00 PHST- 2005/06/15 09:00 [pubmed] PHST- 2005/11/08 09:00 [medline] PHST- 2005/06/15 09:00 [entrez] AID - 10.1002/bdrb.20044 [doi] PST - ppublish SO - Birth Defects Res B Dev Reprod Toxicol. 2005 Jun;74(3):243-54. doi: 10.1002/bdrb.20044.