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Toxicity and teratogenicity evaluation of fenproporex in mice fetuses descending from parents that were exposed to this drug during intrauterine life Avaliação da toxicidade e da teratogenicidade do femproporex em fetos de camundongos provenientes de pais expostos à droga durante a vida intra-uterina

Authors: Camila Queiroz Moreira; Maria José Sparça Salles de Faria; Carolina Campos Lima Moreira;

Toxicity and teratogenicity evaluation of fenproporex in mice fetuses descending from parents that were exposed to this drug during intrauterine life Avaliação da toxicidade e da teratogenicidade do femproporex em fetos de camundongos provenientes de pais expostos à droga durante a vida intra-uterina

Abstract

Fenproporex is an anorectic drug that is transformed into amphetamine in the organism. The use of amphetaminic compounds during pregnancy increases the risk of exencephaly, cleft palate and cardiac malformations. The aim of this study was to evaluate embryo-fetal development, embryotoxicity and possible teratogenic effects in mice fetuses descending from parents that were exposed to fenproporex duringintra-uterine development. Pregnant females were treated daily, by gavage, with 15 mg/kg of fenproporex during all the gestation. When the off springs reached the adult age, they were mated with integral mice, obtaining the2nd generation. On the 18th gestational day, female mice were killed. It was observed that fenproporex did not alter significantly placent weight, fetuses length, rate of postimplantation loss, visceral and skeletal analysis. This may have occurred due to the decrease of the amphetamine effects on the 2nd generation. However, there was statistically significant difference in relation to the fetuses weight. The reduction of fetal weight is used as parameter to evidence toxic effects of asubstance. Therefore, the results suggest that fenproporex presented fetaltoxicity in the tested experimental conditions. Femproporex é um anorexígeno que se transforma em anfetamina no organismo. O uso de compostos anfetamínicos durante a gravidez aumenta o risco de exencefalia, de fenda palatina e de malformações cardíacas. O objetivo deste estudo foi avaliar o desenvolvimento embriofetal, a embriotoxicidade e possíveis efeitos teratogênicos em fetos de camundongos provenientes de pais que foram expostos ao femproporex durante o desenvolvimento intra-uterino. As fêmeas prenhes foram tratadas diariamente, via gavage, com 15 mg/kg de femproporex, durante toda a gestação. Quando as progênies atingiram a idade adulta, foram acasaladas com camundongos íntegros, obtendo-se a 2ª geração. No 18º dia de prenhez, as fêmeas foram mortas. Observou-se que o femproporex não alterou significativamente o peso da placenta, o comprimento dos fetos, a taxa de perda pós-implantação, a análise visceral e a esquelética. Isso pode ter ocorrido devido à diminuição dos efeitos da anfetamina na 2ª geração. Porém, houve diferença estatisticamente significativa em relação ao peso dos fetos. A redução do peso fetal é usada como parâmetro para evidenciar efeitos tóxicos de uma substância. Portanto, os resultados sugerem que o femproporex apresentou toxicidade fetal nas condições experimentais testadas.

Keywords

Femproporex, Medicine (General), Teratogenicidade 2ª geração., R5-920, Desenvolvimento embriofetal, QH301-705.5, Toxicidade, Biology (General)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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