Administration of lopinavir/ritonavir association during rat pregnancy: maternal and fetal effects

Administration of lopinavir/ritonavir association during rat pregnancy: maternal and fetal effects

Author Kulay Júnior, Luiz Autor UNIFESP Google Scholar
Hagemann, Cristiane Cadore de Farias Autor UNIFESP Google Scholar
Nakamura, Mary Uchiyama Autor UNIFESP Google Scholar
Simoes, Ricardo Santos Autor UNIFESP Google Scholar
Carvalho, Adelino Moreira de Autor UNIFESP Google Scholar
Oliveira-Filho, Ricardo Martins Autor UNIFESP Google Scholar
Espiridião, Silvia Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Jose do Rosario Vellano Univ
ABC Med Fdn FUABC
Abstract Purpose: To evaluate the effects of the association of lopinavir and ritonavir administered during the whole period of rat pregnancy. Methods: 62 Wistar rats of the EPM-1 variant weighing about 200 g were randomly divided into five groups: two controls (Ctr1 = stress control, n = 10; and Ctr2 = drug vehicle control, n = 10) and three experimental ones which were treated with an oral solution of lopinavir/ritonavir (Exp1 = 12.8/3.2 mg/kg b.w., n = 14; Exp2 = 38.4/9.6 mg/kg b.w., n = 14; Exp3 = 115.2/28.8 mg/kg b.w., n = 14) from 'day 0' up to the 20th day of pregnancy. Maternal body weight was recorded at the start of the experiment and on the 7th, 14th and 20th day thereafter. At term (20th day), upon laparotomy and hysterotomy, the rats were anesthetized and the amount of implantations, reabsorptions, living fetuses, placentae and intrauterine deaths were recorded. The collected fetuses and placentae were weighed and the concepts were examined under a stereoscope microscope for external malformations. Results: An apparent dose-unrelated lethal effect of the antiviral association on the pregnant rats was observed; notwithstanding, the body weight gain of the surviving rats had no changes, independent of the considered group. It was noted that the quantitative and qualitative intrauterine content of living term rats was indistinguishable from that of the controls. Conclusion: There was some degree of deleterious effects of the administration of the lopinavir/ritonavir association on pregnant rats; such effects eventually led to maternal death. However, neither the surviving rats showed toxicity nor did their concepts present any detectable change which could be related to the drug association.
Keywords Rat
Pregnancy
Lopinavir
Ritonavir
Language English
Date 2013-01-01
Published in Clinical And Experimental Obstetrics & Gynecology. Montreal: I R O G Canada, Inc, v. 40, n. 1, p. 151-154, 2013.
ISSN 0390-6663 (Sherpa/Romeo, impact factor)
Publisher I R O G Canada, Inc
Extent 151-154
Origin http://www.irog.net/download/?magazine=111
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000315752800040
URI http://repositorio.unifesp.br/11600/43296

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