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시클로덱스트린과의 포접에 의한 케토고나졸의 비점막 흡수증가
박기배,이광표,노현구,안홍직,서보연,온윤성 한국약제학회 1994 Journal of Pharmaceutical Investigation Vol.24 No.2
Inclusion complexes of ketoconazole(KT) with α^-, β^- cyclodextrin(CD) and dimethyl-β-cyclodextrin (CD) and dimethyl-β-cyclodextrin(DMβCD) as nasal absorption enhancer were prepared in 1:2 molar ratios by freeze-drying and solvent evaporation methods. In order to compare with the intrinsic absorptivity of KT in the jejunum(J) and the nasal cavity(N), the in situ simultaneous perfusion method was employed. The in situ recirculation study revealed that KT-CD inclusion complexes with the greater stability constant and the faster dissolution rate proportionally increased the absorption of KT in the J and N of rats. The rank order of apparent KT permeability(P_(app) : ㎝/sec × 10^(-5)±S.E.), corrected by surface area of absorption, was 5.10±0.3(N, KT-DMβCD) >4.13±0.4(N, KT-β-CD) >3.52±0.2(N, KT-α-CD) >2.76±0.3(J, KT-DMβCD) >2.61±0.5(J, KT-β-CD) >2.42±0.4(J, KT-α-CD) at pH 4.0. The in crease in permeability of KT-DMβCD inclusion complex was 2.6 folds in the J and 4.5 folds in the N when the perfusing solution was changed from the buffer(pH 4.0) to saline. The absorption rate of KT-DMβCD inclusion complex after nasal administration was more rapid than those of ketoconazole alone and KT-DMβCD inclusion complex after oral administration to rats. In comparision with an oral administration of ketoconazole suspension in corn oil, the relative bioavailability was calculated 137.3% for the oral and 195.0% for nasal KT-DMβCD inclusion complex in rats. The present results suggest that KT-DMβCD inclusion complex may serve as a potential nasal absorption enhancer for the nasal delivery of ketoconazole.
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골수염 치료제인 항생제비드 ( CJ-40003 ) 유효성분의 일반약리작용
김영훈(Young Hoon Kim),최재묵(Jae Mook Choi),온윤성(Yoon Seong On),연규정(Kyu Jeong Yeon),이윤하(Youn Ha Lee),김제학(Je Hak Kim),이영수(Young Soo Lee) 한국응용약물학회 1999 Biomolecules & Therapeutics(구 응용약물학회지) Vol.7 No.1
A new antibiotic bead, CJ-40003 is a combination of three antibiotics, tobramycin, vancomycin and cefazolin embedded in bone cement, for the treatment of osteomyelitis. To evaluate the general pharmacological properties of CJ-40003, the effects of its active ingredients were investigated in mice, rats, dogs and isolated guinea pig ileum. The combination of three antibiotics (CA) did not affect general behavior, central nervous system, smooth muscles, gastrointestinal system, cardiovascular and respiratory system and water and electrolytes excretion when administered intravenously at the doses of 0.3, 1 and 3 mg/kg, respectively, into experimental animals. The CA had no effect on the contractile response of the isolated guinea pig ileum to various spasmogen at concentrations of 1, 3 and 10 ㎍/ml, respectively. In conclusion, the active ingredients of CJ-40003 showed no pharmacological effect in these studies.
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