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KMID : 0381919990290030315
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Korean Journal of Microscopy
1999 Volume.29 No. 3 p.315 ~ p.321
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Effects of $1\alpha$, 25 Dihydroxycholecalciferol on Osteoporotic Fracture : Light Microscopic and Scanning Electron Microscopic Observation
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Bae Chun-Sik
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Abstract
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Vitamin D is one of important factors involved in the regulation of bone metabolism. In osteoporosis, the therapeutic effect of vitamin D on the healing process of fracture has still been controversial. These studies were designed to understand the healing process of normal fibular fracture and the therapeutic effects of $1\alpha$, 25 dihydroxycholecalciferol on the osteoporotic fracture in rats. The simple transverse fractures of rat fibulae were produced with a rotating diamond saw. The histological and ultrastructural changes of rats were observed. The histological and ultrastructural studies revealed the healing of the fibular fracture in the 5th week after simple transverse fracture. The osteoporosis impaired more the healing of osteoporotic fibular fracture than normal non-osteoporotic fibular fracture. The healing process of osteoporotic fracture was facilitated by the treatment with $1\alpha$, 25 dihydroxycholecalciferol, however, was delayed more than the healing process of normal fracture. These results suggest that $1\alpha$, 25 dihydroxycholecalciferol was effective for reducing the deleterious effects of osteoporosis in fracture healing.
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KEYWORD
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Osteoporosis, Ovariectomy, Fracture, $1\alpha$, 25 dihydroxycholecalciferol
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