Evaluation of developmental toxicity of amitraz in sprague-dawley rats

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dc.contributor.authorJ C Kim-
dc.contributor.authorJ Y Shin-
dc.contributor.authorY S Yang-
dc.contributor.authorD H Shin-
dc.contributor.authorC J Moon-
dc.contributor.authorS H Kim-
dc.contributor.authorS C Park-
dc.contributor.authorY B Kim-
dc.contributor.authorHyoung-Chin Kim-
dc.contributor.authorM K Chung-
dc.date.accessioned2017-04-19T09:06:31Z-
dc.date.available2017-04-19T09:06:31Z-
dc.date.issued2007-
dc.identifier.issn00904341-
dc.identifier.uri10.1007/s00244-006-0021-7ko
dc.identifier.urihttps://oak.kribb.re.kr/handle/201005/7766-
dc.description.abstractThis study investigated the potential adverse effects of amitraz on the initiation and maintenance of pregnancy in Sprague-Dawley rats as well as its effects on embryo-fetal development after maternal exposure during the entire pregnancy period. Amitraz was administered to pregnant rats by gavage from days 1 to 19 of gestation at dose levels of 0, 3, 10, and 30 mg/kg/day. All dams underwent a caesarean section on day 20 of gestation and their fetuses were examined for any external, visceral, and skeletal abnormalities. At 30 mg/kg, maternal toxicity manifested as an increase in the incidence of abnormal clinical signs and a lower body weight gain and food intake. Developmental toxicity included an increase in the fetal death rate, a decrease in the litter size, and a reduction in the fetal body weight. In addition, there was an increase in the incidence of fetal external, visceral, and skeletal abnormalities. At 10 mg/kg, maternal toxicity observed included a decrease in the body weight gain and a decrease in food intake. In addition, minimal developmental toxicity, including a decrease in the fetal body weight, an increase in the visceral and skeletal aberrations, and a delay in fetal ossification. There were no signs of either maternal toxicity or developmental toxicity at 3 mg/kg. These results show that amitraz administered during the entire pregnancy period in rats is embryotoxic and teratogenic at the maternally toxic dose (i.e., 30 mg/kg/day) and is minimally embryotoxic at a minimally maternally toxic dose (i.e., 10 mg/kg/day). Under these experimental conditions, the no-observed-adverse-effect level of amitraz for both dams and embryo-fetal development is estimated to be 3 mg/kg/day.-
dc.publisherSpringer-
dc.titleEvaluation of developmental toxicity of amitraz in sprague-dawley rats-
dc.title.alternativeEvaluation of developmental toxicity of amitraz in sprague-dawley rats-
dc.typeArticle-
dc.citation.titleArchives of Environmental Contamination and Toxicology-
dc.citation.number1-
dc.citation.endPage144-
dc.citation.startPage137-
dc.citation.volume52-
dc.contributor.affiliatedAuthorHyoung-Chin Kim-
dc.contributor.alternativeName-
dc.contributor.alternativeName-
dc.contributor.alternativeName-
dc.contributor.alternativeName-
dc.contributor.alternativeName-
dc.contributor.alternativeName-
dc.contributor.alternativeName-
dc.contributor.alternativeName-
dc.contributor.alternativeName김형진-
dc.contributor.alternativeName-
dc.identifier.bibliographicCitationArchives of Environmental Contamination and Toxicology, vol. 52, no. 1, pp. 137-144-
dc.identifier.doi10.1007/s00244-006-0021-7-
dc.description.journalClassY-
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Ochang Branch Institute > Division of Bioinfrastructure > 1. Journal Articles
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