کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2503604 1557433 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Permeation modulating properties of natural polymers – Effect of molecular weight and mucus
موضوعات مرتبط
علوم پزشکی و سلامت داروسازی، سم شناسی و علوم دارویی علوم دارویی
پیش نمایش صفحه اول مقاله
Permeation modulating properties of natural polymers – Effect of molecular weight and mucus
چکیده انگلیسی

The permeation modulating effects of 5 natural polymers; low-ester, amidated and high-ester pectin, as well as hyaluronic acid and chitosan were tested at two different molecular weights each. The model membrane was methotrexate treated HT29 cells grown for 2 or 3 weeks, respectively, thereby differing in the amount of goblet cells and hence mucus.The pectins decreased the permeation of the paracellular marker carboxyfluorescein. Free acid groups and a high molecular weight increased this membrane protective effect. Chitosan displayed pronounced and hyaluronic acid modest permeation enhancing properties. In this case, a low molecular weight accentuated the effect. In all cases, the permeation modulating properties were reduced by mucus.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Pharmaceutics - Volume 409, Issues 1–2, 16 May 2011, Pages 150–155
نویسندگان
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