Abstract
Lilii Bulbus is a folk medicine for both culinary and medicinal purpose. In traditional medicine theory, Lilii Bulbus is usually used as an complementary therapy for nourishing the heart and lung, clearing heat in the treatment of mental instability and depression. In this study, NLPS-1a (Mw = 2610 Da, DP = 16), a water-soluble non-starch Lilii Bulbus polysaccharides, was isolated and purified. Structural analysis showed that NLPS-1a mainly contained Man and Glc with a molar ratio of 11.137 and 9.427. The glycosidic linkages of NLPS-1a were 1,3-Manp (59.93%), 1,2-Glcp (37.93%), T-Glcp (1.21%) and T-Manp (0.93%), indicating the highly-linear structures. In addition, NLPS-1a could significantly repair the injury of PC12 cells induced by corticosterone (CORT), reduce Lactate dehydrogenase (LDH) leakage and decrease the cell apoptosis in a dose-dependent manner. Above all, the results indicated that NLPS-1a had protective effects against CORT-induced neurotoxicity in PC12 cells, and might be a natural antidepressant, which enriched the study of the metabolic mechanism between herbal polysaccharides and antidepressant.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (NSFC) (no 82074017; 81573607; 81202917) and The Special Fund for Science and Technology Development in 2017 Guangdong Province of South China (no. 2017A030311031).
Funding
This work was supported by the National Natural Science Foundation of China (NSFC) (no 82074017; 81573607; 81202917) and The Special Fund for Science and Technology Development in 2017 Guangdong Province of South China (no. 2017A030311031).
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YZ: Investigation, Writing. XL: Investigation. DL: Software, Visualization. JW: Formal analysis. YT: Formal analysis. HC: Supervision, Writing - review & editing. WR: Conceptualization, Resources, Writing - review & editing.
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Zheng, Y., Li, X., Lin, D. et al. Structural elucidation of a non-starch polysaccharides from Lilii Bulbus and its protective effects against corticosterone-induced neurotoxicity in PC12 cells. Glycoconj J 41, 57–65 (2024). https://doi.org/10.1007/s10719-023-10145-4
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DOI: https://doi.org/10.1007/s10719-023-10145-4