Chorioallantoic membrane assays have been based on diffusion control—Problems arising with a diversity of mass transfers in egg white

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Taipei Medical University Institutional Repository > 醫學院 > 醫學系 > 泌尿學科 > 期刊論文 > Item 987654321/3446

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题名:	Chorioallantoic membrane assays have been based on diffusion control—Problems arising with a diversity of mass transfers in egg white
作者:	陳冠州 Hsieh CL;Peng CC;Lin LY;Cheng YT;Chen KC;Peng RY
贡献者:	醫學系泌尿學科
日期:	2009
上传时间:	2009-08-24 14:17:20 (UTC+8)
摘要:	The chorioallantoic membrane (CAM) assays have been intensively used to determine angiogenesis and anti-angiogenesis of medicines. In view of bioactivity, this technique should be performed with kinetic control regime in chicken embryos. Whether the dosages ever used had satisfied this requirement, we explored by mathematical analysis. A diffusion-in-egg model was established to describe several medicinal diffusions in egg white that involved the instantaneous transient kinetic behavior, the diffusion of medicines in capping volume (the volume from the air sac to the interface of egg yolk). By reviewing the diffusion of various compounds including the cited and the experimentals in this work, we conclude that all the CAM assays ever cited were performed under diffusion control regime rather than kinetic control, which may bring forth deviations caused by a diversity of constitutes in egg white through various medicine-protein interactions. The chorioallantoic membrane (CAM) assays have been intensively used to determine angiogenesis and anti-angiogenesis of medicines. In view of bioactivity, this technique should be performed with kinetic control regime in chicken embryos. Whether the dosages ever used had satisfied this requirement, we explored by mathematical analysis. A diffusion-in-egg model was established to describe several medicinal diffusions in egg white that involved the instantaneous transient kinetic behavior, the diffusion of medicines in capping volume (the volume from the air sac to the interface of egg yolk). By reviewing the diffusion of various compounds including the cited and the experimentals in this work, we conclude that all the CAM assays ever cited were performed under diffusion control regime rather than kinetic control, which may bring forth deviations caused by a diversity of constitutes in egg white through various medicine-protein interactions.
關聯:	Colloids and Surfaces B: Biointerfaces.(68):74-78.
数据类型:	article
显示于类别:	[泌尿學科] 期刊論文

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