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Updated: Jul 6, 2026

Preparation of Herbal Medicine: Er-Xian Decoction and Er-Xian-containing Serum for In Vivo and In Vitro Experiments
Published on: May 31, 2017
[Studies on factors influencing on ephedrine contents in Maxing Shigan decoction]
Guang-Yi Liang1, Zhu-Ying He, Kong-Yun Wu
1Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550002, China. guangyi_liang@21cn.com
Objective:
To investigate the factors influencing on the ephedrine contents in different compositions of Maxingshigan decoction.
Method:
Adopt mixed uniform design to dismantle recipes, employ the stepping regression analysis to deal with experimental statistics, use the partial correlational analysis to analyze the correlation coefficients and the results were validated.
Result:
The regressive equation was of significance, that is Y = 4.36719347 + 7.752707437X1 + 1.2557197041X3 (r = 0.85564, P = 0.0189). The main influencing factors on ephedrine content in Maxingshigan decoction were gypsum and amygdalin. The influent factor of amygdalin on ephedrine content had great significance, and gypsum had significance.
Conclusion:
The collective effects of amygdalin and gypsum affect the content of ephedrine in Maxing Shigan decoction which the content-effect relationship was in direct correlation.
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