Objective: To develop an HPLC method for the determination of a Tibetan medicine Meconopsis quintuplinervia.
Method: A Hypersil-Keystone-C18 column (4.6 mm x 250 mm, 5 microm) was used with the isocratic elution of acetonitrile and 0.012% glacial acetic acid. The flow rate was 1.0 mL x min(-1), and the detection wavelength was set at 237 nm.
Result: The linear range of 0-methylflavinantine was 0.2-2.4 microg (r = 0.999 7). The average recovery was 96.26%.
Conclusion: The developed method was reliable, and can be used for the quality control of M. quintuplinervia Regel.
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Hum Vaccin Immunother
December 2025
Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, PR China.
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Department of Immunology, College of Basic Medical Sciences, Jilin University, 126 Xin min Street, Changchun, 130021, China.
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Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area (Ningxia Medical University), Ministry of Education, School of Pharmacy, Ningxia Medical University 1160 Shengli Street Yinchuan 750004 China
The Keap1 (Kelch-like ECH-Associating Protein 1)-Nrf2 (Nuclear Factor Erythroid 2-Related Factor 2)-ARE (Antioxidant Response Element) signaling pathway plays a crucial role in the oxidative stress response and has been linked to the development and progression of various diseases. Its influence on cerebral ischemia/reperfusion (I/R) injury has garnered significant attention. In our study, we investigated the effect of compound 2, a non-covalent inhibitor of the Keap1-Nrf2 interaction, which was previously discovered by our research group.
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