COMPARISON OF BODY DISTRIBUTION OF POLY(VINYL ALCOHOL) WITH OTHER WATER-SOLUBLE POLYMERS AFTER INTRAVENOUS ADMINISTRATION

被引：132

作者：

YAMAOKA, T ^{[1
]}

TABATA, Y ^{[1
]}

IKADA, Y ^{[1
]}

机构：

[1] KYOTO UNIV,BIOMED ENGN RES CTR,SAKYO KU,KYOTO 606,JAPAN

来源：

JOURNAL OF PHARMACY AND PHARMACOLOGY | 1995年 / 47卷 / 06期

关键词：

D O I：

10.1111/j.2042-7158.1995.tb05835.x

中图分类号：

R9 [药学];

学科分类号：

1007 ;

摘要：

The body distribution of poly(vinyl alcohol) (PVA) with molecular weights (MW) from 14800 to 434000 Da was investigated after intravenous administration and compared with that of other water-soluble polymers such as poly(ethylene glycol) (PEG), gelatin, dextran, and pullulan. The half-life of PVA in the circulation was prolonged from 90 min (MW 14800Da) to 23 h (MW 434000 Da), similar to that of PEG which had a half-life of 30 min (MW 6000) and 20 h (MW 170000). However, the half-life of PVA was much longer than that of other polymers when compared at a similar molecular weight. PVA was located in most organs but with very small accumulation. An insignificant interaction of PVA with cell components, such as macrophages and blood cells, was observed. Similar to PEG, the excretion rate of PVA at the glomeruli was rapidly reduced around 30000 Da, as the molecular weight increased. These results indicate that the half-life of intravenously injected PVA in the blood was mainly determined by the permeation characteristics of the kidney.

引用

页码：479 / 486

页数：8

共 37 条

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