Pharmacological treatment of osteopenia induced by gastrectomy or ovariectomy in young female rats
(2004) In Acta Orthopaedica Scandinavica 75(2). p.201-209- Abstract
- Background Both gastrectomy (GX) and ovariectomy (OVX) induce osteopenia in man and experimental animals. The present study addresses the question - can alendronate, estrogen or parathyroid hormone (PTH) be used to treat established GX- or OVX -evoked osteopenia?
Methods Rats were GX-, OVX- or SHAM-operated 8 weeks before starting the treatment with drugs. Each group was then treated for 8 weeks with 50 µg/kg/day alendronate, 10 µg/kg/day estrogen or 75 µg/kg/day PTH(1-84); n=8 rats/group. Peripheral Quantitative Computed Tomography (pQCT) was used to measure trabecular bone mineral density (BMD) and various cortical bone parameters.
Results At killing, 16 weeks after surgery, GX and OVX rats had a... (More) - Background Both gastrectomy (GX) and ovariectomy (OVX) induce osteopenia in man and experimental animals. The present study addresses the question - can alendronate, estrogen or parathyroid hormone (PTH) be used to treat established GX- or OVX -evoked osteopenia?
Methods Rats were GX-, OVX- or SHAM-operated 8 weeks before starting the treatment with drugs. Each group was then treated for 8 weeks with 50 µg/kg/day alendronate, 10 µg/kg/day estrogen or 75 µg/kg/day PTH(1-84); n=8 rats/group. Peripheral Quantitative Computed Tomography (pQCT) was used to measure trabecular bone mineral density (BMD) and various cortical bone parameters.
Results At killing, 16 weeks after surgery, GX and OVX rats had a greatly reduced trabecular BMD in the metaphysis of the distal femur (GX -44% and OVX -55%). Alendronate increased the trabecular BMD by 44% in GX rats and by 64% in OVX rats, while PTH increased it by 51% and 115%, respectively. However, estrogen increased the trabecular BMD in GX rats (35%), but not in OVX rats (15%, not significant). Cortical bone parameters were adversely (but moderately) affected by GX, but not by OVX or by treatment with the three drugs.
Interpretation Alendronate, estrogen and PTH restored the trabecular bone loss in rats with an established GX-evoked osteopenia. In contrast, alendronate and PTH, but not estrogen, restored the trabecular bone loss after OVX. Hence, the mechanism underlying GX-evoked bone loss differs from that underlying OVXevoked bone loss. The ability of alendronate, estrogen and PTH to reverse the GX-evoked osteopenia in the rat may be of clinical interest when dealing with bone loss in humans after GX. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/126440
- author
- Andersson, Niklas U. LU ; Surve, Vikas LU ; Lehto-Axtelius, Daisy ; Andersson, Kjell ; Ryberg, Birgitta ; Ohlsson, Claes and Håkanson, Rolf LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Acta Orthopaedica Scandinavica
- volume
- 75
- issue
- 2
- pages
- 201 - 209
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000221196100012
- pmid:15180236
- scopus:2342526556
- pmid:15180236
- ISSN
- 0001-6470
- DOI
- 10.1080/00016470412331294465
- language
- English
- LU publication?
- yes
- id
- 508ff51d-2741-4c15-a2ab-05ea6755b2b8 (old id 126440)
- alternative location
- http://taylorandfrancis.metapress.com/openurl.asp?genre=article&id=doi:10.1080/00016470412331294465
- date added to LUP
- 2016-04-01 16:40:36
- date last changed
- 2022-01-28 21:17:48
@article{508ff51d-2741-4c15-a2ab-05ea6755b2b8,
abstract = {{Background Both gastrectomy (GX) and ovariectomy (OVX) induce osteopenia in man and experimental animals. The present study addresses the question - can alendronate, estrogen or parathyroid hormone (PTH) be used to treat established GX- or OVX -evoked osteopenia?<br/><br>
<br/><br>
Methods Rats were GX-, OVX- or SHAM-operated 8 weeks before starting the treatment with drugs. Each group was then treated for 8 weeks with 50 µg/kg/day alendronate, 10 µg/kg/day estrogen or 75 µg/kg/day PTH(1-84); n=8 rats/group. Peripheral Quantitative Computed Tomography (pQCT) was used to measure trabecular bone mineral density (BMD) and various cortical bone parameters.<br/><br>
<br/><br>
Results At killing, 16 weeks after surgery, GX and OVX rats had a greatly reduced trabecular BMD in the metaphysis of the distal femur (GX -44% and OVX -55%). Alendronate increased the trabecular BMD by 44% in GX rats and by 64% in OVX rats, while PTH increased it by 51% and 115%, respectively. However, estrogen increased the trabecular BMD in GX rats (35%), but not in OVX rats (15%, not significant). Cortical bone parameters were adversely (but moderately) affected by GX, but not by OVX or by treatment with the three drugs.<br/><br>
<br/><br>
Interpretation Alendronate, estrogen and PTH restored the trabecular bone loss in rats with an established GX-evoked osteopenia. In contrast, alendronate and PTH, but not estrogen, restored the trabecular bone loss after OVX. Hence, the mechanism underlying GX-evoked bone loss differs from that underlying OVXevoked bone loss. The ability of alendronate, estrogen and PTH to reverse the GX-evoked osteopenia in the rat may be of clinical interest when dealing with bone loss in humans after GX.}},
author = {{Andersson, Niklas U. and Surve, Vikas and Lehto-Axtelius, Daisy and Andersson, Kjell and Ryberg, Birgitta and Ohlsson, Claes and Håkanson, Rolf}},
issn = {{0001-6470}},
language = {{eng}},
number = {{2}},
pages = {{201--209}},
publisher = {{Taylor & Francis}},
series = {{Acta Orthopaedica Scandinavica}},
title = {{Pharmacological treatment of osteopenia induced by gastrectomy or ovariectomy in young female rats}},
url = {{https://lup.lub.lu.se/search/files/4746755/624062.pdf}},
doi = {{10.1080/00016470412331294465}},
volume = {{75}},
year = {{2004}},
}