Distribution of tetracycline-arginine-glycine-aspartate-tyrosine in mice and its effect on bone / 中国医学科学院学报
Acta Academiae Medicinae Sinicae
; (6): 399-404, 2004.
Article
em Zh
| WPRIM
| ID: wpr-231920
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the distribution of tetracycline-arginine-glycine-aspartate-tyrosine (T-RGDY) in mice and its effect on bone.</p><p><b>METHODS</b>125-labeled T-RGDY was studied for its distribution in mice and for its effects on bone by histomorphometry in ovariectomized rats.</p><p><b>RESULTS</b>The 125I-labeled T-RGDY was more concentrated in the osteoporotic bone than in the normal bone. Compared with ovariectomy group, the morphologic index such as trabecular bone volume/total tissue volume (TBV/TTV), TBV/sponge bone volume (SBV), and mean trabecular plate thickness (MTPT) in T-RGDY group significantly increased (P < 0.05). As compared with sham operation group, MTPT significantly increased in T-RGDY group (P < 0.05), while TBV/SBV and mean trabecular plate density significantly decreased (P < 0.05), and TBV/TYV and mean trabecular plate spacing were almost the same as those in sham operation group (P > 0.05).</p><p><b>CONCLUSION</b>T-RGDY may concentrate in bone tissue to a certain degree, which is closely related with the status of bone remodeling. T-RGDY may inhibit the bone loss caused by ovariectomy.</p>
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1
Base de dados:
WPRIM
Assunto principal:
Oligopeptídeos
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Osteoporose
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Farmacologia
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Tetraciclina
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Tirosina
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Farmacocinética
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Distribuição Tecidual
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Ovariectomia
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Densidade Óssea
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Remodelação Óssea
Limite:
Animals
Idioma:
Zh
Ano de publicação:
2004
Tipo de documento:
Article