RT info:eu-repo/semantics/article T1 Effects of testosterone and exercise training on bone microstructure of rats A1 Jota Baptista, Catarina A1 Faustino Rocha, Ana I. A1 Fardilha, Margarida A1 Ferreira, Rita A1 Oliveira, Paula A. A1 Regueiro Purriños, Marta María A1 Rodríguez-Áltonaga Martínez, José Antonio A1 Gonzalo Orden, José Manuel A1 Ginja, Mário A2 Medicina y Cirugia Animal K1 Medicina. Salud K1 Veterinaria K1 Bone K1 Exercise training K1 Hypogonadism K1 Micro-computed tomography K1 Osteoporosis K1 Testosterone K1 3109 Ciencias Veterinarias AB [EN] Background and Aim: Male hypogonadism results from failure to produce physiological levels of testosterone. Testosterone in men is essential in masculine development, sperm production, and adult man’s health. Osteoporosis is one of the consequences of hypogonadism. Regular physical exercise and exogenous testosterone administration are frequently used to prevent or treat this condition. This study aimed to understand the effects of lifelong exercise training and testosterone levels (isolated and together) in the main bone structure parameters. Materials and Methods: A total of 24 rats were used and randomly divided into four groups: Control group (CG; n=6), exercised group (EG, n=6), testosterone group (TG, n=6), and testosterone EG (TEG, n=6). A micro-computed tomography equipment was used to evaluate 15 bone parameters. Results: Both factors (exercise training and testosterone) seem to improve the bone resistance and microstructure, although in different bone characteristics. Testosterone influenced trabecular structure parameters, namely, connectivity density, trabecular number, and trabecular space. The exercise promoted alterations in bone structure as well, although, in most cases, in different bone structure parameters as bone mineral density and medullar mineral density. Conclusion: Overall, exercise and testosterone therapy seems to have a synergistic contribution to the general bone structure and resistance. Further studies are warranted, comparing different individual factors, as gender, lifestyle, or testosterone protocols, to constantly improve the medical management of hypogonadism (and osteoporosis) PB Veterinary World SN 0972-8988 LK https://hdl.handle.net/10612/18492 UL https://hdl.handle.net/10612/18492 NO Jota-Baptista, C., Faustino-Rocha, A. I., Fardilha, M., Ferreira, R., Oliveira, P. A., Regueiro-Purriños, M., Rodriguez-Altonaga, J. A., Gonzalo-Orden, J. M., & Ginja, M. (2022). Effects of testosterone and exercise training on bone microstructure of rats. Veterinary World, 15(3), 627-633. https://doi.org/10.14202/VETWORLD.2022.627-633 DS BULERIA. Repositorio Institucional de la Universidad de León RD Jul 7, 2024