Effect of zinc on bone metabolism in fetal mouse limb culture / 生物医学与环境科学(英文)
Biomedical and Environmental Sciences
; (12): 323-329, 2002.
Article
em En
| WPRIM
| ID: wpr-264303
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To determine the effects of zinc-deficiency and zinc-excess on bone metabolism.</p><p><b>METHODS</b>We developed the culture model of fetal mouse limbs (16th day) cultivated in self-made rotator with continuing flow of mixed gas for six days in vitro. The cultured limbs were examined by the techniques of 45Ca tracer and X-roentgenography.</p><p><b>RESULTS</b>The right limbs cultivated had longer bone length, higher bone density than the left limbs uncultivated from the same embryo; and histologically, the right limbs had active bone cell differentiation, proliferation, increased bone trabecula, clearly calcified cartilage matrix, and osteogenic tissue. Compared with the control group, the zinc-deficient group and zinc-excess (Zn2+ 120 mumol/L) group contained less osteocalcin (BGP) and 45Ca content, and lower AKP activity; whereas zinc-normal (Zn2+ 45 mumol/L and Zn2+ 70 mumol/L) groups contained more BGP and 45Ca contents, and higher AKP (alkaline phosphatase) activity.</p><p><b>CONCLUSION</b>Both zinc-deficiency and zinc-excess can alter bone growth and normal metabolism. The results indicate that the culture model of fetal mouse limbs (16th day) in vitro can be used as a research model of bone growth and development.</p>
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Índice:
WPRIM
Assunto principal:
Farmacologia
/
Zinco
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Osso e Ossos
/
Biomarcadores
/
Cartilagem
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Diferenciação Celular
/
Divisão Celular
/
Embriologia
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Cálcio
/
Técnicas de Cultura
Tipo de estudo:
Prognostic_studies
Limite:
Animals
/
Pregnancy
Idioma:
En
Revista:
Biomedical and Environmental Sciences
Ano de publicação:
2002
Tipo de documento:
Article