PMID- 15669036 OWN - NLM STAT- MEDLINE DCOM- 20050526 LR - 20191210 IS - 0260-437X (Print) IS - 0260-437X (Linking) VI - 25 IP - 1 DP - 2005 Jan-Feb TI - Developmental toxicity assessment of the new fluoroquinolone antibacterial DW-116 in rabbits. PG - 52-9 AB - DW-116 is a newly developed fluoroquinolone antibacterial with a broad spectrum against both Gram-positive and Gram-negative bacteria. We have reported recently that DW-116 is embryotoxic and teratogenic in rats. The present study was conducted to investigate the teratogenicity of DW-116, together with maternal toxicity and developmental toxicity using New Zealand White rabbits. The test chemical was administered by gavage to pregnant rabbits from gestational day (GD) 6 through to GD 18 at dose levels of 0, 5, 19.5 and 76.1 mg kg(-1) day(-1). All does were subjected to caesarean section on day 28 of gestation and their foetuses were examined for external, visceral and skeletal abnormalities. In the 76.1 mg kg(-1) group, a minimal maternal toxicity, as evidenced by decreased body weight gain during treatment period, was observed in pregnant rabbits. Significant embryo-foetal toxicity, including increased number of foetal deaths and delayed foetal ossification, was seen. However, no treatment-related morphological changes were detected in foetal external, visceral and skeletal examinations. There were no adverse effects on either pregnant dams or embryo-foetal development at 19.5 and 5 mg kg(-1). It was concluded that administration of DW-116 during the major organogenetic period in rabbits produced decreased maternal body weight gain, increased number of foetal deaths and foetal developmental delay but no evidence of teratogenicity. The no-observed-adverse-effect levels (NOAELs) of DW-116 are considered to be 19.5 mg kg(-1) day(-1) for does and embryo-foetuses, respectively. CI - Copyright 2005 John Wiley & Sons, Ltd. FAU - Kim, J C AU - Kim JC AD - College of Veterinary Medicine, Chonnam National University, Gwangju 500-757, Republic of Korea. FAU - Kim, S H AU - Kim SH FAU - Shin, D H AU - Shin DH FAU - Bae, C S AU - Bae CS FAU - Oh, K S AU - Oh KS FAU - Kim, J H AU - Kim JH FAU - Yun, H I AU - Yun HI FAU - Lim, J H AU - Lim JH FAU - Chung, M K AU - Chung MK LA - eng PT - Evaluation Study PT - Journal Article PL - England TA - J Appl Toxicol JT - Journal of applied toxicology : JAT JID - 8109495 RN - 0 (Anti-Bacterial Agents) RN - 0 (DW-116) RN - 0 (Fluoroquinolones) RN - 0 (Piperazines) RN - 0 (Quinolones) SB - IM MH - Animals MH - Anti-Bacterial Agents/chemistry/*toxicity MH - Body Weight/drug effects MH - *Drug Evaluation, Preclinical MH - Embryonic Development/*drug effects MH - Female MH - Fetal Death/chemically induced MH - Fluoroquinolones/chemistry/*toxicity MH - Gestational Age MH - Molecular Structure MH - No-Observed-Adverse-Effect Level MH - Piperazines/chemistry/*toxicity MH - Pregnancy MH - Quinolones/chemistry/*toxicity MH - Rabbits EDAT- 2005/01/26 09:00 MHDA- 2005/05/27 09:00 CRDT- 2005/01/26 09:00 PHST- 2005/01/26 09:00 [pubmed] PHST- 2005/05/27 09:00 [medline] PHST- 2005/01/26 09:00 [entrez] AID - 10.1002/jat.1033 [doi] PST - ppublish SO - J Appl Toxicol. 2005 Jan-Feb;25(1):52-9. doi: 10.1002/jat.1033.