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논문 기본 정보

자료유형
학술저널
저자정보
Yoon, Kyung-Hyuk (Department of Neurosurgery, Daegu Veterans Hospital) Cho, Dae-Chul (Department of Neurosurgery, School of Medicine, Kyungpook National University) Yu, Song-Hee (Department of Neurosurgery, School of Medicine, Kyungpook National University) Kim, Kyoung-Tae (Department of Neurosurgery, School of Medicine, Kyungpook National University) Jeon, Young-Hoon (Department of Anesthesiology and Pain Medicine, School of Dentistry, Kyungpook National University) Sung, Joo-Kyung (Department of Neurosurgery, School of Medicine, Kyungpook National University)
저널정보
대한신경외과학회 대한신경외과학회지 대한신경외과학회지 제51권 제6호
발행연도
2012.1
수록면
323 - 327 (5page)

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Objective : The purpose of this study was to verify the appropriateness of ovariectomized rats as the osteoporosis animal model. Methods : Twelve female Sprague-Dawley rats underwent a sham operation (the sham group) or bilateral ovariectomy [the ovariectomy (OVX) group]. Eight weeks after operations, serum biochemical markers of bone turnover were analyzed; osteocalcin and alkaline phosphatase, which are sensitive biochemical markers of bone formation, and C-terminal telopeptide fragment of type I collagen C-terminus (CTX), which is a sensitive biochemical marker of bone resorption. Bone histomorphometric parameters and microarchitectural properties of 4th lumbar vertebrae were determined by micro-computed tomographic (CT) scan. Results : The OVX group showed on average 75.4% higher osteocalcin and 72.5% higher CTX levels than the sham group, indicating increased bone turnover. Micro-CT analysis showed significantly lower bone mineral density (BMD) (p=0.005) and cortical BMD (p=0.021) in the OVX group. Furthermore, the OVX group was found to have a significantly lower trabecular bone volume fraction (p=0.002). Conclusion : Our results showed that bone turnover was significantly increased and bone mass was significantly decreased 8 weeks after ovariectomy in rats. Thus, we propose that the ovariectomized rat model be considered a reproducible and reliable model of osteoporosis.

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