Abstract：Objective To investigate the effects of astragaloside Ⅳ-lipid polymerhybrid nanoparticles (AA-LPNs) on rat model induced by ischemia-reperfusion injury. Methods AA-LPNs was prepared by nano-precipitation method. Sixteen clean SD rats were selected and divided into the conventional group (8 rats) and the study group (8 rats) according to the random number table method. The conventional group was given astragaloside Ⅳ (AA) (40 mg/kg, 1.5 ml), and the study group was given AA-LPNs (40 mg/kg, 1.5 ml). The pharmacokinetic parameters of the two groups were compared (drug half-life [t1/2], peak time [Tmax], peak concentration [Cmax], area under concentration-time curve [AUC] [AUClast, AUCall], mean retention time [MRT] [MRTlast, MRTall]). Another 60 rats were selected, 15 of which were randomly selected as the sham operation group, and the rest were constructed as ischemia-reperfusion injury induced rat models. After successful modeling, the rats were divided into model group, AA group, and AA-LPNs group according to random number table method, with 15 rats in each group. Twenty four hours after modeling, the AA group and AA-LPNs group were given 40 mg/kg intragastric administration, while the sham operation group and model group were given 0.9% sodium chloride solution, once a day, for consecutive four weeks. After the experiment, the serum levels of creatine kinase (CK), lactate dehydrogenase (LDH), superoxide dismutase (SOD), malondialdehyde (MDA) in four groups were detected. TUNEL assay was used to detect the apoptosis of myocardial cells in the four groups. Results The AA-LPNs prepared in this study were spherical and uniformly round, with an average dynamic diameter of (180±23) nm. t1/2, Tmax, AUClast, AUCall, and MRTall in the study group were higher than those in the conventional group, and the differences were statistically significant (P ＜ 0.05). Serum CK, LDH, MDA level and apoptosis rate in model group were higher than those in sham operation group, while SOD level was lower than that in sham operation group, the differences were highly statistically significant (P ＜ 0.01). Serum CK, LDH, MDA level and apoptosis rate in AA group and AA-LPNs group were lower than those in model group, while SOD level was higher than that in model group, the differences were statistically significant (P ＜ 0.05 or P ＜ 0.01). Serum CK, LDH, MDA level and apoptosis rate in AA-LPNs group were lower than those in AA group, while SOD level was higher than that in AA group, the differences were statistically significant (P ＜ 0.05 or P ＜ 0.01). Conclusion AA-LPNs has a protective effect on myocardial cells in rats with ischemia-reperfusion injury.
赖志昆 冯其茂 王骕 胡晓贞. 黄芪甲苷脂质聚合物纳米粒对缺血再灌注损伤诱导大鼠模型的影响[J]. 中国医药导报, 2022, 19(11): 25-29.
LAI Zhikun FENG Qimao WANG Su HU Xiaozhen. Effects of astragaloside Ⅳ-lipid polymerhybrid nanoparticles on rat model induced by ischemia-reperfusion injury#br#. 中国医药导报, 2022, 19(11): 25-29.
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