Abstract
Osteoporosis is a frequent disease among the elderly especially in postmenopausal women. Achyranthes bidentata is a traditional Chinese medicine used to strengthen bones. Here, A. bidentata polysaccharides (ABPs) were confirmed to have anti-osteoporosis effects. This study discovered biomarkers by comparing normal and osteoporosis rats and evaluated the effects of ABPs on osteoporosis based on the UPLC/Q-TOF-MS-based metabolomics analysis. We could then predict the underlying mechanisms from the perspective of metabolomics. Osteoporotic rats were treated with ABPs, and serum was then sampled for metabolic analysis. Glutarylcarnitine, lysoPC (18:1) and 9-cis-retinoic acid were identified as biomarkers. The ABPs could significantly increase these biomarkers, and this indicated that ABPs curing osteoporosis regulated lipid metabolism. The UPLC/Q-TOF-MS-based metabolomics analysis offered a potential strategy to evaluate the anti-osteoporosis effects of ABPs and to explain the relative mechanisms. Furthermore, the ABPs have good potential for treating osteoporosis.
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