Effects of treadmill training on combined goserelin acetate and doxorubicin-induced osteopenia in female rats.
J Musculoskelet Neuronal Interact
; 14(1): 10-8, 2014 Mar.
Article
em En
| MEDLINE
| ID: mdl-24583536
ABSTRACT
OBJECTIVES:
This study examined individual and combined effects of the cancer treatments goserelin acetate (GA) and doxorubicin (DOX) on bone and determined if treadmill running (TM) provides osteoprotection.METHODS:
Ten-week-old female Sprague-Dawley rats were randomly assigned to sedentary (SED) or TM groups. SED received GA, DOX, combined GA and DOX (GA+DOX), or placebo and maintained normal cage activity. TM received GA, DOX, GA+DOX, or placebo and participated in a progressive motorized treadmill protocol. After 8 weeks, tibiae were evaluated using micro computed tomography.RESULTS:
Negative drug effects were observed in cancellous bone (bone volume/tissue volume, trabecular number, trabecular thickness, trabecular spacing; P<0.05). An additive bone volume/tissue volume and trabecular spacing effect was observed in SED GA+DOX (vs. SED+GA and SED+DOX, P<0.05) but not in TM GA+DOX (vs. TM+GA and TM+DOX, P>0.05). Negative drug effects were observed in cortical bone (cross-sectional volume, cortical volume, marrow volume; P<0.05), but combined GA+DOX did not exacerbate these effects. Additionally, there were no protective cortical bone effects observed in TM.CONCLUSIONS:
Combined GA+DOX exacerbates cancellous osteopenia in the tibia, and treadmill running provided only minor protection.
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Base de dados:
MEDLINE
Assunto principal:
Condicionamento Físico Animal
/
Doenças Ósseas Metabólicas
/
Doxorrubicina
/
Gosserrelina
/
Antineoplásicos Hormonais
Tipo de estudo:
Guideline
Limite:
Animals
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article