红景天苷及其脂质体在小鼠血清、肺泡灌洗液及肺组织中的定量分析和分布比较 点击下载
论文标题: 红景天苷及其脂质体在小鼠血清、肺泡灌洗液及肺组织中的定量分析和分布比较
英文标题:
中文摘要: 目的 建立小鼠血清、肺泡灌洗液(BALF)及肺组织中红景天苷(Sal)的定量分析方法,比较Sal及其脂质体的分布差异。方法采用高效液相色谱法,以WelchXtimateC18为色谱柱,流动相为甲醇-甲酸水溶液(血清及BALF检测时甲酸体积分数为0.1%,肺组织检测时甲酸体积分数为0.2%),流速为1.0mL/min,检测波长为275nm,柱温为30℃,进样量为10μL;血清、BALF及肺组织匀浆样品经甲醇沉淀蛋白后进样测定。将12只小鼠随机均分为Sal组与Sal脂质体组,按300mg/kg(以Sal计)灌胃相应药液0.5h后,检测血清、BALF及肺组织中Sal浓度。结果Sal在血清、BALF及肺组织中的线性范围分别为1.56~200.00μg/mL、1.56~100.00μg/mL、6.24~400.00μg/g(r均为0.9999),日内RSD分别为1.35%~3.87%、1.10%~2.75%、1.90%~3.86%;日间RSD分别为3.38%~5.11%、2.22%~4.36%、2.41%~4.73%;相对准确度分别为97.95%~101.61%、98.29%~101.82%、97.41%~106.94%;稳定性试验的RSD均小于6%。与Sal组比较,Sal脂质体组小鼠BALF中Sal浓度显著升高(P<0.05),血清和肺组织中Sal浓度均显著降低(P<0.05)。结论本研究建立的HPLC法适用于小鼠血清、BALF及肺组织中Sal的定量分析。Sal脂质体在给药早期呈现出向肺泡腔分布的趋势。
英文摘要: Abstract OBJECTIVE Establish a quantitative analysis method for salidroside (Sal) in mouse serum, bronchoalveolar lavage fluid (BALF), and lung tissue, and compare the distribution differences of Sal and its liposomes. METHODS Using high-performance liquid chromatography(HPLC), Welch Xtimate C18 was used as the chromatographic column, with methanol-formic acid aqueous solution (formic acid volume fraction: 0.1% for serum and BALF detection, 0.2% for lung tissue detection) as the mobile phase, flow rate of 1.0 mL/min, detection wavelength of 275 nm, column temperature of 30 ℃, and injection volume of 10 μL. Serum, BALF, and lung tissue homogenate samples were precipitated with methanol for protein analysis. Twelve mice were randomly divided into Sal group and Sal liposome group, and the concentrations of Sal in serum, BALF, and lung tissue were detected after intragastric administration corresponding liquid medicine at a dose of 300 mg/kg (calculated as Sal) for 0.5 h. RESULTS The linear ranges of Sal in serum, BALF, and lung tissue were 1.56-200.00 μg/mL, 1.56-100.00 μg/mL, and 6.24-400.00 μg/g, respectively (all r=0.999 9), with intra-day RSD of 1.35%-3.87%, 1.10%-2.75%, and 1.90%-3.86%, respectively; the inter-day RSD of 3.38%-5.11%, 2.22%- 4.36%, and 2.41%-4.73%, respectively. The relative accuracies were 97.95%-101.61%, 98.29%-101.82%, and 97.41%- 106.94%, respectively. The stability RSDs were all less than 6%. Compared with the Sal group, the Sal liposome group significantly increased the concentration of Sal in BALF of mice (P<0.05), and significantly decreased the concentration of Sal in serum and lung tissue (P<0.05). CONCLUSIONS The HPLC method established in this study is suitable for quantitative analysis of Sal in mouse serum, BALF, and lung tissue. Sal liposomes have a tendency to distribute towards the alveolar cavity during early administration.
期刊: 2026年第37卷第15期
作者: 王蓉;赵妮;李国权;王亚峰;李申奥;赖家铭;蔡浩
英文作者: WANG Rong,ZHAO Ni,LI Guoquan,WANG Yafeng,LI Shen’ao,LAI Jiaming,CAI Hao
关键字: 红景天苷;高效液相色谱法;脂质体;药物浓度
KEYWORDS: salidroside; HPLC; liposomes; drug concentration
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