视频搜索
热门关键字:
当天更新0部 总数量1473

ABCDEFGHIJKLMNOPQRSTUVWXYZ

热门排行榜

推荐视频

  • Microfab..

    主讲人:请看下面内容介绍

    类型:Cellular Biology

    时长:未知

    时间:2008

    推荐:

  • Title Ce..

    主讲人:请看下面内容介绍

    类型:Cellular Biology

    时长:未知

    时间:2007

    推荐:

  • Micro-sc..

    主讲人:请看下面内容介绍

    类型:Cellular Biology

    时长:未知

    时间:2007

    推荐:

  • Patterni..

    主讲人:请看下面内容介绍

    类型:Cellular Biology

    时长:未知

    时间:2007

    推荐:

当前位置:首页  »  实验视频  »  Cellular Biology  »  Fabrication of Myogenic Engineered Tissue Constructs

  • Fabrication of Myogenic Engineered Tissue Constructs


    时长:未知

    类型:Cellular Biology

    时间:2009

    国家:美国

    推荐星级:

    播放次数:加载中

    包包:20免费充值包包

    .

    主讲人:请看下面内容介绍  

播放地址1: FLV文件(说明: 无需安装任何插件,即可快速播放 )

内容介绍

    Christina A. Pacak1, 2, Douglas B. Cowan1, 21Department of Anesthesiology, Children’s Hospital Boston and Harvard Medical School, 2Perioperative and Pain Medicine, Children’s Hospital Boston and Harvard Medical School Despite the fact that electronic pacemakers are life-saving medical devices, their long-term performance in pediatric patients can be problematic owing to the restrictions imposed by a child's small size and their inevitable growth. Consequently, there is a genuine need for innovative therapies designed specifically for pediatric patients with cardiac rhythm disorders. We propose that a conductive biological alternative consisting of a collagen-based matrix containing autologously-derived cells could better adapt to growth, reduce the need for recurrent surgeries, and greatly improve the quality of life for these patients. In the present study, we describe a procedure for incorporating primary skeletal myoblast cell cultures within a hydrogel matrix to fashion a surgically-implantable tissue construct that will serve as an electrical conduit between the upper and lower chambers of the heart. Ultimately, we anticipate using this type of engineered tissue to restore atrioventricular electrical conduction in children with complete heart block. In view of that, we isolate myoblasts from the skeletal muscles of neonatal Lewis rats and plate them onto laminin-coated tissue culture dishes using a modified version of established protocols[2, 3]. After one to two days, cultured cells are collected and mixed with antibiotics, type 1 collagen, Matrigel™, and NaHCO3. The result is a viscous, uniform solution that can be cast into a mold of nearly any shape and size[1, 4, 5]. For our tissue constructs, we employ type 1 collagen isolated from fetal lamb skin using standard procedures[6]. Once the tissue has solidified at 37°C, culture media is carefully added to the plate until the construct is submerged. The engineered tissue is then allowed to further condense through dehydration for 2 more days, at which point it is ready for in vitro assessment or surgical-implantation.

ICP证( 吉ICP备09002134号) | 管理员信箱:stemcell8@qq.com |  干细胞之家论坛

页面执行时间: 4.2441秒 12次数据查询