Low-Molecular-Weight Heparin (Dalteparin) Demonstrated a Weaker Effect on Rat Bone Metabolism Compared with Heparin.
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- Nishiyama Masahiko
- Central Research Laboratories, Kissei Pharmaceutical Co., Ltd.
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- Itoh Fumiaki
- Central Research Laboratories, Kissei Pharmaceutical Co., Ltd.
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- Ujiie Arao
- Central Research Laboratories, Kissei Pharmaceutical Co., Ltd.
Bibliographic Information
- Other Title
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- Low-Molecular-Weight Heparin Dalteparin
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Abstract
We studied the pharmacological effects of dalteparin (low-molecular-weight heparin)and heparin on bone metabolism in rats. After their 28 days of consecutive intravenous injections, significant loss of bone weight and mineral contents was observed in the heparin-treated rats, whereas dalteparin slightly reduced bone mass. By the end of the experiment, the femora of 7 out of 8 rats fractured in the heparin (10, 000 U/kg/day)-treated group, but none had broken in the control and dalteparin-treated groups. Serum osteocalcin levels were significantly decreased in the former group. The growth plate width of the tibia was increased in a dose-dependent manner, especially in the heparin-treated group. Histomorphometric assessment of tibia showed that the osteoid surface and mineral apposition rates were significantly reduced in the heparin-treated group, whereas the eroded surface was significantly increased in the heparin-treated group. The above results suggest that heparin not only augments bone resorption but also suppressed bone formation and that dalteparin has a weaker suppressive effect on bone formation compared with heparin.
Journal
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- The Japanese Journal of Pharmacology
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The Japanese Journal of Pharmacology 74 (1), 59-68, 1997
The Japanese Pharmacological Society
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Details 詳細情報について
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- CRID
- 1390282679261205760
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- NII Article ID
- 10008678411
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- NII Book ID
- AA00691188
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- COI
- 1:CAS:528:DyaK2sXjs1Gitbw%3D
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- ISSN
- 13473506
- 00215198
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- NDL BIB ID
- 4219983
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- PubMed
- 9195298
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed