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자료유형
학술저널
저자정보
전인구 (동덕여자대학교 약학대학) 박인숙 (동덕여자대학교 약학대학) 곽혜선 (동덕여자대학교 약학대학)
저널정보
한국응용약물학회 The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology 제10권 제2호
발행연도
2002.1
수록면
104 - 113 (10page)

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The effects of enzyme inhibitors and penetration enhancers on the permeation of leucine enkephalin (Leu-Enk) and its synthetic analog, [${D-ala}^2$]-leucine enkephalinamide (YAGFL) across the nasal, rectal and vaginal mucosae were evaluated. Enzyme inhibitors and penetration enhancers employed for Leu-Enk permeation study were amastatin(AM), thimerosal(TM) and ethylenediaminetetraacetic acid disodium salt(EDTA), and sodium taurodihydrofusidate (STDHF). Those for YAGFL permeation study were TM, benzalkonium chloride(BC) and EDTA, and STDHF, sodium deoxycholate(SDC), sodium glycholate(SGC), glycyrrhizic acid ammonium salt (GAA), L-$\alpha$-Iysophosphatidylcholine(LPC) and mixed micelle (MM, STDHF: linoleic acid = 15 mM : 5 mM). The addition of TM alone on the donor and receptor solutions for Leu-Enk permeation study across all the three kinds of mucosae failed to inhibit the degradation; it completely degraded in 6 hrs, and no permeation occurred. However, with addition of three kinds of inhibitors together, the fluxes across nasal, rectal and vaginal mucosae were $\20.7{pm}2.5$>,$\0.3{pm}0.05$> and $\1.4{pm}0.5$ $\mu$\mid$textrm{m}$/$\textrm{cm}^2$/hr, respectively. Moreover, the addition of STDHF in the presence of the above three inhibitors enhanced permeation across nasal, rectal and vaginal mucosae 1.3, 15 and 1.3 times, respectively. YhGFL also degraded in the donor and receptor solutions rapidly as time went. With mixed inhibitors of TM and EDTA, the percents of YAGFL remaining in the donor solutions facing nasal, rectal and vaginal mucosae were 69.7, 69.8 and 79.8%, respectively; the percent permeated increased to 10, 2.1 and 5.7%, respectively. The addition of STDHF in the presence of either BC/EDTA or TW/EDTA increased the permeation 2.2, 11.0 and 2.9 times, and 2.21, 14.0 and 2.7 times for nasal, rectal and vaginal mucosae, respectively. With SDC, SGC, GAA, LPC ud MM in the presence of TM/EDTA increased permeation; especially, they increased permeation across vaginal mucosae effectively, and the enhancement factors were 12.5, 7.6, 8.7, 5.7 and 5.5, respectively. The degradation extent of YAGFL was correlated with protein concentrations in the epidermal and serosal extracts. The flux of YAGFL across nasal mucosa increased dose-dependently.

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