Journal
PROSTAGLANDINS LEUKOTRIENES AND ESSENTIAL FATTY ACIDS
Volume 75, Issue 6, Pages 419-427Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.plefa.2006.08.003
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Although several studies have reported a positive effect of n-3 essential fatty acids (EFAs) on bone density post-ovariectomy, the role of specific EFAs has yet to be fully elucidated. In this study, ovariectomised (OVX) rats were supplemented with 0.1 g (LOW) or 1.0 g (HIGH) of eicosapentaenoic acid (EPA)/kg body weight for 9 weeks. Bone mineral density (BMD), 25-hydroxyvitamin D-3 and plasma fatty acid profile were compared to those of OVX and sham animals fed a non-supplemented diet. BMD decreased significantly in all OVX (P < 0.001) but not sham rats. There was no difference in BMD between the LOW group and OVX controls. BMD was significantly lower in the HIGH group compared to OVX and sham controls. 25-hydroxyvitamin D3 levels were significantly higher in both the LOW and HIGH groups compared to OVX controls (P = 0.0006 and 0.02, respectively). In conclusion, high-dose EPA supplementation exacerbated the effects of ovariectomy on BMD. (c) 2006 Elsevier Ltd. All rights reserved.
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