Developmental exposure to Passiflora incarnata induces behavioural alterations in the male progeny
André D. Bacchi A , Bianca Ponte A , Milene L. Vieira A , Jaqueline C. C. de Paula A , Suzana F. P. Mesquita B , Daniela C. C. Gerardin A and Estefânia G. Moreira A C
+ Author Affiliations
- Author Affiliations
A Department of Physiological Sciences, State University of Londrina, 86051-980, Londrina, Paraná, Brazil.
B Department of Biology, State University of Londrina, 86051-980, Londrina, Paraná, Brazil.
C Corresponding author. Email: egmoreira@uel.br
Reproduction, Fertility and Development 25(5) 782-789 https://doi.org/10.1071/RD11307
Submitted: 12 December 2011 Accepted: 25 June 2012 Published: 8 August 2012
Abstract
Passiflora incarnata is marketed in many countries as a phytomedicine and is prescribed mainly as a sedative and anxiolytic. Even though the directions of most marketed phytomedicines recommend them to be used under medical supervision, reproductive and developmental studies are sparse and not mandatory for regulatory purposes. To evaluate the reproductive and developmental toxicity of P. incarnata, Wistar female rats were gavaged with 30 or 300 mg kg–1 of this herb from gestational Day (GD) 0 to postnatal Day (PND) 21. P. incarnata treatment did not influence dams’ bodyweight or food intake or their reproductive performance (post-implantation loss, litter size, litter weight). There was also no influence on the physical development of pups (bodyweight gain, day of vaginal opening or preputial separation) or their behaviour in the open-field at PND 22, 35 and 75. Sexual behaviour was disrupted in adult male pups exposed to 300 mg kg–1 of P. incarnata; in this group, only 3 out of 11 pups were sexually competent. This behavioural disruption was not accompanied by alterations in plasma testosterone levels, reproductive-related organs and glands weights or sperm count. It is hypothesised that aromatase inhibition may be involved in the observed effect.
Additional keywords: developmental toxicity, lactation, open-field, pregnancy, reproductive toxicity, sexual behaviour.
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