CUI Lili,KONG Shujun,WANG Hui,et al.Study on the tissue distribution and pharmacokinetics of PELGE-crebanine nanoparticles in rats[J].ZHONGGUO YAOFANG,2022,33(24):2957-2961.
CUI Lili,KONG Shujun,WANG Hui,et al.Study on the tissue distribution and pharmacokinetics of PELGE-crebanine nanoparticles in rats[J].ZHONGGUO YAOFANG,2022,33(24):2957-2961. DOI: 10.6039/j.issn.1001-0408.2022.24.03.
Study on the tissue distribution and pharmacokinetics of PELGE-crebanine nanoparticles in rats
To study the tissue distribution and pharmacokinetic characteristics of polyethylene glycol-(polylactic acid-hydroxyacetic acid) -polyethylene glycol triblock copolymer (PELGE) -crebanine nanoparticles (PELGE-Cre-NPS) in rats.
METHODS
2
The SD rats were divided into 9 groups (1 group at each time point), with 6 rats in each group,half male and half female. After PELGE-Cre-NPs(5 mg/kg) was injected into tail vein of rats, appropriate amounts of heart, liver, spleen, lung, kidney and brain tissues were taken at 5, 15, 30, 60, 90, 120, 180, 240 and 300 min, respectively. With verapamil hydrochloride as internal standard, the content of crebanine (Cre) in each tissue was determined by HPLC, and the main pharmacokinetic parameters such as area under the drug-time curve (AUC
0-
t
) and mean retention time (MRT
0-
t
) were calculated.
RESULTS
2
At 5-90 min after medication, the content of Cre in each tissue of rats from large to small was lung, kidney, spleen, liver, brain and heart; at 120-300 min after medication, the sequence was lung, spleen, kidney, liver, brain and heart. AUC
0-
t
of Cre in heart, liver, spleen, lung, kidney and brain were (18.86±1.66), (43.36±4.99), (51.36±5.34), (81.86±12.34), (53.31±3.19) and (27.73±4.76) mg·h/L, respectively. MRT
0-
t
of Cre were (1.94±0.12), (1.97±1.02), (1.98±1.23), (1.89±0.21), (1.88±0.06), (1.85±0.19) h, respectively.
CONCLUSIONS
2
PELGE-Cre-NPs mainly distribute in lung tissue, but less in heart tissue, and the elimination of PELGE-Cre-NPs in heart, lung and liver tissue is slow.
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