Nandrolone decanoate and physical activity affect quadriceps in peripubertal rats.
2018
Authors:
Sretenović, JasminaAjdžanović, Vladimir
Živković, Vladimir
Srejović, Ivan
Čorbić, Milena
Milošević, Verica
Jakovljević, Vladimir
Milosavljević, Zoran
Document Type:
Article (Accepted Version)
,
© 2018 Elsevier GmbH
Metadata
Show full item recordAbstract:
Anabolic androgenic steroids (AASs) are synthetic analogs of testosterone often used by athletes to increase the skeletal muscle mass. Our goal was to examine the effects of physical activity and physical activity combined with supraphysiological doses of nandrolone on functional morphology of the quadriceps muscle. The study included 32 peripubertal Wistar rats, divided into 4 groups: control (T-N-), nandrolone (T-N+), physical activity (T+N-) and physical activity plus nandrolone (T+N+) groups. The T+N- and T+N+ group swam for 4 weeks, 1 h/day, 5 days/week. The T-N+ and T+N+ groups received nandolone decanoate (20 mg/kg b.w.) once per week, subcutaneously. Subsequently, the rats were sacrificed and muscle specimens were prepared for the processing. Tissue sections were histochemically and immunohistochemically stained, while the image analysis was used for quantification. Longitudinal diameter of quadriceps muscle cells was increased for 21% in T-N+, for 57% in T+N- and for 64% in T+N+ group while cross section muscle cell area was increased in T-N+ for 19%, in T+N- for 47% and in T+N+ group for 59%, compared to the control. Collagen fibers covered area was increased in T-N+ group for 36%, in T+N- for 109% and in T+N+ group for 159%, compared to the control. Erythrocyte depots were decreased in T-N+ group and increased in T+N- and T+N+ group, in comparison with T-N-. VEGF depots were increased in all treated groups. Chronic administration of supraphysiological doses of AASs alone or in combination with physical activity induces hypertrophy and significant changes in the quadriceps muscle tissue structure.
Keywords:
Histomorphometry; Nandrolone; Physical activity; Quadriceps; RatSource:
Acta Histochemica, 2018Funding / projects:
- The effects of homocysteine and homocysteine-related compounds on cardiovascular system: role of gaseous transmitters No, H2S and CO (RS-MESTD-Basic Research (BR or ON)-175043)
- The effects of select plant extracts, phytoestrogens, steroid and peptide hormones on the rat neuroendocrine system (RS-MESTD-Basic Research (BR or ON)-173009)
DOI: 10.1016/j.acthis.2018.04.004
PubMed: 29759662
WoS: 000439253400005
Scopus: 2-s2.0-85046844631
URI
https://www.sciencedirect.com/science/article/pii/S0065128118300382?via%3Dihubhttp://www.ncbi.nlm.nih.gov/pubmed/29759662
https://radar.ibiss.bg.ac.rs/handle/123456789/3059