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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2008, Vol. 13 ›› Issue (7): 776-781.

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Pharmacokinetics and excretion of phenolic acids from mailuoning injection in rats

WANG Wei, WANG Guang-ji, HAO Hai-ping, CUI Nan, SUN Xuan-rong   

  1. Key Laboratory of Pharmacokinetics, China Pharmaceutical University, Nanjing 210038, Jiangsu, China
  • Received:2008-01-30 Accepted:2008-05-04 Online:2008-07-26 Published:2020-10-14
  • Contact: WANG Guang-ji, male ,Ph.D, professor, majoring in pharmacokinetics. Tel:025-83271544 E-mail:gjwangcpu@yahoo.com.cn

Abstract: AIM: To study the pharmacokinetics of phenolic acids from Mailuoning injection in rats. METHODS: SD rats were given a single i.v.administration dose of Mailuoning injection 10 mL/kg, plasma and urine were collected before and after injection. Phenolic acid components in plasma and urine were measured by LC MS.Pharmacokinetic parameters were determined from the plasma concentration-time data and urinary excretion-time data with the DAS software package.RESULTS: After i.v.of Mailuoning injection, chlorogenic acid (CGA), 1, 5-dicaffeylquinic acid (1, 5-DCQA), 3, 4-dicaffeylquinic acid (3, 4-DCQA), 3, 5-dicaffeylquinic acid (3, 5-DCQA)and caffeic acid (CA)were quickly excrectioned.The t1/2 of CGA, 1, 5-DCQA, 3, 4-DCQA, 3, 5-DCQA and CA were 0.649, 0.334, 0.479, 0.486 and 0.330 h, respectively.AUC0-∞ were (22.522±2.716), (0.353±0.062), (3.620±1.246), (5.287±1.627)and (2.257±0.360)mg·L-1 ·h, respectively.After i.v. of Mailuoning injection, CGA, 1, 5-DCQA, 3, 4-DCQA, 3, 5-DCQA and CA can all be detected in the urine.The amounts of CGA, 1, 5-DCQA, 3, 4-DCQA, 3, 5-DCQA and CA excreted from urine during 0-24 h were (122.22±26.49)%, (3.30±1.26)%, (0.24±0.11)%, (1.93± 0.77)% and (18.61± 4.99)% of dose given in rats, respectively.CONCLUSION: After i.v.of Mailuoning injection, phenolic acids can be excreted quickly.Only a small quantity of 1, 5-DCQA, 3, 4-DCQA, 3, 5-DCQA and CA were excreted from urine.3, 4-DCQA and 3, 5-DCQA may be metabolized into CGA in the rat plasma.

Key words: phenolic acids, Mailuoning injection, pharmacokinetics, LC/MS

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