Some Pharmaceutical Properties of 3-Hydroxypropyl- and 2,3-Dihydroxypropyl-β-cyclodextrins and Their Solubilizing and Stabilizing Abilities
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概要
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3-Hydroxypropyl- and 2,3-dihydroxypropyl-β-cyclodextrins (3-HP- and DHP-β-CyDs) with different degrees of substitution (D.S.) were prepared and their pharmaceutical properties were investigated. The aqueous solubility of 3-HP- and DHP-β-CyDs was much higher than that of the parent β-CyD and the dissolution of DHP-β-CyD in water was endothermic. The acid- and α-amylase-catalyzed hydrolysis rates of 3-HP- and DHP-β-CyDs were slower than those of the parent β-CyD. The hemolytic activity (human erythrocytes) and local irritancy (rabbit muscle) of DHP-β-CyD were considerably less than those of natural, methylated or other hydroxyalkylated β-CyDs, and decreased with increasing D.S. The ability of the hydroxyalkylated β-CyDs to remove cholesterol and proteins from human erythrocytes decreased with increasing D.S., and correlated well with their hemolytic activity. 3-HP-β-CyD was a more effective solubilizer for poorly water-soluble drugs than the parent β-CyD, and its stabilizing effect on chemically instable drugs was higher than that of the parent β-CyD. The above data suggest a considerable pharmaceutical potential of 3-HP- and DHP-β-CyDs as parenteral carriers.
- 社団法人日本薬学会の論文
- 1989-04-25
著者
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入江 徹美
熊本大・薬
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上釜 兼人
熊本大学 歯
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平山 文俊
Faculty Of Pharmaceutical Sciences Sojo University
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平山 文俊
Faculty Of Pharmaceutical Sciences Kyushu University
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上釜 兼人
Faculty Of Pharmaceutical Sciences Kumamoto University
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入江 徹美
Faculty of Pharmaceutical Sciences, Kumamoto University
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山本 政信
Faculty of Pharmaceutical Sciences, Kumamoto University
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吉田 篤也
Faculty of Pharmaceutical Sciences, Kumamoto University
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山本 政信
Faculty Of Pharmaceutical Sciences Kumamoto University
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Irie T
Graduate School Of Pharmaceutical Sciences Kumamoto University
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Irie Tetsumi
Dep. Of Clinical Chemistry And Informatics Graduate School Of Pharmaceutical Sciences Kumamoto Univ.
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吉田 篤也
Faculty Of Pharmaceutical Sciences Kumamoto University
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Hirayama Fumitoshi
Faculty Of Pharmaceutical Sciences Sojo University
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上釜 兼人
崇城大 薬
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