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贵州医科大学 药用植物功效与利用国家重点实验室,药学院,微生物与生化药学工程中心, 实验动物中心,贵阳 550025
杨七妹,在读硕士,从事药物药效物质基础及质量研究,E-mail:2910962426@qq.com
张敏,正高级实验师,从事药物质量控制及体内药物分析研究,E-mail:minzhang@gmc.edu.cn
高秀丽,硕士,教授,从事药物药效物质基础及体内药物分析研究,E-mail:gaoxl@gmc.edu.cn
收稿日期:2021-02-23,
网络出版日期:2021-04-08,
纸质出版日期:2021-11-20
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杨七妹,周明皓,王鹏娇等.基于UPLC-MS/MS和分子对接技术考察聚乙二醇400对黄芩苷药代动力学、抗炎作用的影响[J].中国实验方剂学杂志,2021,27(22):131-138.
YANG Qi-mei,ZHOU Ming-hao,WANG Peng-jiao,et al.Investigation of Effect of Polyethylene Glycol 400 on Pharmacokinetics and Anti-inflammatory Effect of Baicalin Based on UPLC-MS/MS and Molecular Docking Techniques[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(22):131-138.
杨七妹,周明皓,王鹏娇等.基于UPLC-MS/MS和分子对接技术考察聚乙二醇400对黄芩苷药代动力学、抗炎作用的影响[J].中国实验方剂学杂志,2021,27(22):131-138. DOI: 10.13422/j.cnki.syfjx.20211447.
YANG Qi-mei,ZHOU Ming-hao,WANG Peng-jiao,et al.Investigation of Effect of Polyethylene Glycol 400 on Pharmacokinetics and Anti-inflammatory Effect of Baicalin Based on UPLC-MS/MS and Molecular Docking Techniques[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(22):131-138. DOI: 10.13422/j.cnki.syfjx.20211447.
目的
2
考察药用辅料聚乙二醇400(PEG400)对黄芩苷药代动力学及抗炎作用的影响,利用分子对接技术初步探讨黄芩苷及其主要代谢物黄芩素6-
O
-
β
-
D
-葡萄糖醛酸苷(B6G)的抗炎作用。
方法
2
大鼠随机分为2组,分别以水和PEG400为溶解基质,给大鼠灌胃相等剂量的黄芩苷水溶液(黄芩苷+水组)与黄芩苷PEG400溶液(黄芩苷+PEG400组),不同时间段血浆样品经处理后,利用超高效液相色谱-串联质谱法(UPLC-MS/MS)测定大鼠血浆中黄芩苷及其主要代谢物B6G的浓度,运用DAS 3.2.2软件处理药代动力学参数;将小鼠随机分为空白组(生理盐水,20 mL·kg
-1
),阿司匹林组(0.2 g·kg
-1
),黄芩苷/黄芩苷+PEG400高、低剂量(3.0,1.5 g·kg
-1
)组,连续给药7 d,建立小鼠耳肿胀及足肿胀模型,计算肿胀度及肿胀抑制率。
结果
2
药代动力学研究结果显示,与黄芩苷+水组相比,大鼠灌胃黄芩苷PEG400溶液后黄芩苷及B6G的血药浓度增加,药时曲线下面积(AUC
0-
t
)分别提高了2.36,1.97倍,药峰浓度(
C
max
)分别提高了2.12,1.65倍;小鼠耳肿胀和足肿胀炎症模型结果表明,小鼠灌胃黄芩苷PEG400溶液后抗炎效果增强。此外,分子对接结果表明黄芩苷与B6G可以与多靶点蛋白[肿瘤坏死因子(TNF)-
α
,白细胞介素(IL)-6,IL-1
β
,前列腺素E
2
(PGE
2
),核转录因子-
κ
B(NF-
κ
B)]位点结合,具有较高亲和力,且优于阳性药阿司匹林。
结论
2
PEG400可提高黄芩苷及其主要代谢物B6G的血药浓度,且抗炎效果增强,黄芩苷与B6G可以与多种炎症因子及核转录因子靶点蛋白形成较强的氢键,推测黄芩苷及B6G共同发挥了抗炎作用。
Objective
2
To investigate the effects of polyethylene glycol 400 (PEG400) on the pharmacokinetics and anti-inflammatory effect of baicalin, and to preliminarily explore the anti-inflammatory effects of baicalin and its main metabolite baicalein 6-
O
-
β
-
D
-glucuronide (B6G) by molecular docking.
Method
2
Rats were randomly divided into two groups with water and PEG400 as the dissolving matrix, and rats were administrated the equal dose of baicalin aqueous solution (baicalin+water group) and baicalin PEG400 solution (baicalin+PEG400 group). After the plasma samples were processed at different time periods, the concentrations of baicalin and B6G in rat plasma were determined by ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), and pharmacokinetic parameters were processed by DAS 3.2.2 software. Mice were randomly divided into a blank group (normal saline, 20 mL·kg
-1
), aspirin group (dose of 0.2 g·kg
-1
), baicalin/baicalin+PEG400 high and low dose (3.0, 1.5 g·kg
-1
) groups, after continuous administration for 7 days, the mouse ear swelling and foot swelling models were established, and the swelling degree and swelling inhibition rate were calculated.
Result
2
The pharmacokinetic study showed that compared with baicalin+water group, the plasma concentrations of baicalin and B6G increased after administration of baicalin PEG400 solution, and the area under the curve (AUC
0-
t
) increased by 2.36, 1.97 times, and the peak concentration (
C
max
) increased by 2.12, 1.65 times, respectively. The results of mouse ear and foot swelling inflammation models showed that the anti-inflammatory effect was enhanced after intragastric administration of baicalin PEG400 solution. In addition, molecular docking results showed that baicalin and B6G could site bind to multiple target proteins [tumor necrosis factor (TNF)-
α
, interleukin (IL)-6, IL-1
β
, prostaglandin E
2
(PGE
2
) and nuclear transcription factor-
κ
B (NF-
κ
B)] with higher affinity, which was superior to the positive drug aspirin.
Conclusion
2
PEG400 can increase the plasma concentration of baicalin and its main metabolite B6G, and enhance the anti-inflammatory effect. Baicalin and B6G can form strong hydrogen bonds with various inflammatory factors and of nuclear transcription factors, it is speculated that baicalin and B6G jointly play an anti-inflammatory role.
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