首页> 外文会议>Symposium on Biomedical Materials-Drug Delivery, Implants and Tissue Engineering held November 30-December 1, 1998, Boston, Massachusetts, U.S.A. >Development of a multiple-lumen nerve cuff utilizing growth stimulant patterns for controlled regeneration
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Development of a multiple-lumen nerve cuff utilizing growth stimulant patterns for controlled regeneration

机译:利用生长刺激模式控制再生的多腔神经袖套的开发

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Silicone rubber multiple-lumen (ML) nerve cuffs were used for side-by-side comparisons of the effectiveness of two varieties of nerve growth stimulants (collagen gel and a gel mixture of collagen, fibronectin, and laminin) for regenerating cables across a 15 mm gap in 10 adult Sprague-Dawley rats. The filling pattern of the six tubes of the multiple-lumen portion of the cuff alternated with the collagen gel and the gel mixture of collagen, fibronectin, and laminin. After an 8 week implantation period, 53percent (32 of 60) of the 0.5 mm diameter lumens displayed successful cable regeneration for both material fillings. The ML cuff experiments demonstrate the ability to bridge a 15 mm gap in the sciatic nerve of the rat by 8 weeks for relatively small diameter conduits in ML cuffs loaded with two varieties of growth stimulants. A more advanced organization including a smaller acellular region fraction and a higher vascularity is seen in the cables from the mixture-filled lumens compared to those in the cables from the collagen-filled lumens.
机译:使用硅橡胶多腔(ML)神经袖套来并排比较两种神经生长刺激剂(胶原蛋白凝胶和胶原蛋白,纤连蛋白和层粘连蛋白的凝胶混合物)在15个电缆上再生电缆的有效性。 10只成年Sprague-Dawley大鼠中的mm间隙。袖带的多腔部分的六个管的填充模式与胶原蛋白凝胶以及胶原蛋白,纤连蛋白和层粘连蛋白的凝胶混合物交替。植入8周后,直径为0.5毫米的内腔中有53%(60个中的32个)显示出两种材料填充均成功完成了电缆再生。 ML袖带实验证明,在装有两种生长刺激剂的ML袖带中,直径相对较小的导管能够在8周内弥合大鼠坐骨神经15毫米的间隙。与来自充满胶原的管腔的电缆相比,在充满混合物的管腔的电缆中可以看到更先进的组织,包括较小的无细胞区域分数和更高的血管性。

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