Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5924146 | Physiology & Behavior | 2014 | 8 Pages |
Abstract
Methylphenidate (MPH) is a psychostimulant drug which acts by blocking the dopamine and norepinephrine transporters and is the main drug used to treat attention deficit hyperactivity disorder in children and adolescents. During puberty, changes in neurotransmitter systems (including dopaminergic system) are engaged on the release of gonadal hormones and the development of cephalic structures responsible for reproductive function. This study investigated the effects of repeated treatment with methylphenidate during development on reproductive parameters of adult male rats. Wistar rats received MPH 2.5Â mg/kg, MPH 5.0Â mg/kg, or distilled water (gavage) from postnatal day (PND) 21 to PND 60. At PND 100, an increase in percentage of abnormal tail morphology sperm in MPH 2.5 and increase in testicular interstitial tissue volume in MPH groups as well as in the number of type A spermatogonia in MPH 5.0 group were observed. This study demonstrated that repeated administration of methylphenidate during periods corresponding childhood to early adulthood interfered on testicular function in rats at adult life.
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Authors
Bruno Garcia Montagnini, Luiza Sienna Silva, Alice Hartmann dos Santos, Janete Aparecida Anselmo-Franci, Glaura Scantamburlo Alves Fernandes, Suzana de Fátima Paccola Mesquita, Daniela Cristina Ceccatto Gerardin,