کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2484973 | 1114342 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel pH-Sensitive Lipid-Polymer Composite Microspheres of 10-Hydroxycamptothecin Exhibiting Colon-Specific Biodistribution and Reduced Systemic Absorption
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
داروسازی، سم شناسی و علوم دارویی
اکتشاف دارویی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Novel pH-Sensitive Lipid-Polymer Composite Microspheres of 10-Hydroxycamptothecin Exhibiting Colon-Specific Biodistribution and Reduced Systemic Absorption Novel pH-Sensitive Lipid-Polymer Composite Microspheres of 10-Hydroxycamptothecin Exhibiting Colon-Specific Biodistribution and Reduced Systemic Absorption](/preview/png/2484973.png)
چکیده انگلیسی
Novel lipid-polymer composite microspheres (LP-MS) were prepared by combining pH-sensitive polymer Eudragit S100 with solid lipid Compritol 888 ATO for colonic delivery of 10-hydroxycamptothecin (HCPT), and pH-dependent controlled drug release has been achieved. The colon-specific biodistribution and uptake by the mucosal tissue were examined using coumarin-6-marked LP-MS. It is proved that good in vitro-in vivo relationship has been achieved, with more drugs being delivered to colon and a higher drug level was maintained for a long period. Moreover, in vivo bioavailability of LP-MS was evaluated with conventional enteric microspheres (enteric MS) as reference. After administration of LP-MS, systemic absorption of HCPT was greatly reduced, with area under the curve from 0 to 24 h (AUC0 -24h, 2.186 ± 0.27) being significantly lower than that of enteric MS group (6.352 ± 0.696). In conclusion, the novel pH-sensitive LP-MS has potential for colon-specific drug delivery.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical Sciences - Volume 102, Issue 6, June 2013, Pages 1752-1759
Journal: Journal of Pharmaceutical Sciences - Volume 102, Issue 6, June 2013, Pages 1752-1759
نویسندگان
Li Gan, Yi-Ping Gao, Chun-Liu Zhu, Xin-Xin Zhang, Yong Gan,