Toxic effects of different doses of cyclophosphamide on the reproductive parameters of male mice

The cyclophosphamide is used in cancer treatment. The aim of this study was evaluating the effect of different doses of this drug on male mice reproductive parameters. The cyclophosphamide was administered in the doses 100, 150, 200 e 250 mg.kg-1, intraperitoneal route, for six weeks. As a result, i...

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Bibliographic Details
Main Authors: Tatiane Yumi Nakamura Kanno, Lucimara Aparecida Sensiate, Natália Aparecida de Paula, Maria José Sparça Salles
Format: Article
Language:English
Published: Universidade de São Paulo 2009-06-01
Series:Brazilian Journal of Pharmaceutical Sciences
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000200017
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Summary:The cyclophosphamide is used in cancer treatment. The aim of this study was evaluating the effect of different doses of this drug on male mice reproductive parameters. The cyclophosphamide was administered in the doses 100, 150, 200 e 250 mg.kg-1, intraperitoneal route, for six weeks. As a result, it was observed a decrease in body mass and a decrease in testicles and kidney's weight, in all animals treated with cyclophosphamide. Only the groups that received the doses 100, 150 mg.kg-1 of cyclophosphamide were able to fertilize their females. There was higher incidence of post- implantation losses, reabsorptions and decrease in fetal viability in the group that received the dose of 150 mg.kg-1. It was observed a reduction in epididymis and liver's weight of the animals treated with the doses 150, 200 e 250 mg.kg-1. Abnormal spermatozoa were found in the doses 200 e 250 mg.kg-1. Based on the methodology used and results obtained, it was concluded that the cyclophosphamide was toxic, considering the decrease in animal's body mass and testicle's weight; promoted hepatotoxicity and nephrotoxic effect; influenced in the animals spermatogenesis taking them to infertility and/or subfertility; decreased fetal viability, despite it didn't cause significant malformations in the offspring.<br>A ciclofosfamida é utilizada no tratamento de câncer. Este estudo visa avaliar os efeitos das diferentes doses do fármaco nos parâmetros reprodutivos de camundongos machos. A ciclofosfamida foi administrada nas doses de 100, 150, 200 e 250 mg kg-1, via intraperitoneal por seis semanas. Como resultado observou-se diminuição de massa corporal, redução no peso de testículos e rins em todos os animais tratados com a ciclofosfamida. Apenas os grupos que receberam as doses de 100 e 150 mg kg-1 do quimioterápico foram capazes de fertilizar as fêmeas. Houve maior incidência de perdas pós-implantação, reabsorção e diminuição da viabilidade fetal no grupo que recebeu a dose de 150 mg kg-1. Observou-se redução nos pesos dos epidídimos e fígado dos animais tratados com as doses de 150, 200 e 250 mg kg-1. Espermatozóides anômalos foram encontrados nas doses de 200 e 250mg kg-1. Com base na metodologia empregada e nos resultados obtidos, conclui-se que a ciclofosfamida foi tóxica considerando-se a redução de massa corporal e o peso dos testículos dos animais; promoveu hepatotoxicidade e efeito nefrotóxico; influenciou na espermatogênese dos animais de forma a levá-los a um estado de infertilidade e/ou subfertilidade; diminuiu viabilidade fetal, entretanto não causou malformações significativas na prole.
ISSN:1984-8250
2175-9790