News Release

联合组织工程为椎间盘突出带来了新希望

Peer-Reviewed Publication

American Association for the Advancement of Science (AAAS)

Combined Tissue Engineering Provides New Hope for Spinal Disc Herniations (2 of 2)

video: Prof. Larry Bonassar of the Meinig School of Biomedical Engineering at Cornell University describes a new, biomaterials-based approach to repairing herniated discs. His team developed a two-part injection to both reinflate and patch herniated discs, restoring the mechanical function and preventing further degeneration. This material relates to a paper that appeared in the Mar. 11, 2020, issue of Science Translational Medicine, published by AAAS. The paper, by S.R. Sloan at Cornell University in Ithaca, NY; and colleagues was titled, "Combined nucleus pulposus augmentation and annulus fibrosus repair prevents acute intervertebral disc degeneration after discectomy." view more 

Credit: Cornell University

一种有希望的新型组织工程学方法可能有一天会改善椎间盘切除术(这是椎间盘突出症的主要手术疗法)患者的转归。该技术在活体绵羊中的测试已逾6周,它是首批解决椎间盘两个组成部分损害的方法之一;这两个组成部分为:坚韧的外环或纤维环(AF),以及凝胶状的内核或髓核(NP)。椎间盘会在AF破裂时突出,导致NP组织球形膨出,后者会压迫附近的脊神经。这种神经受压会引起严重的疼痛,在极端情况下会导致感觉和运动控制能力的丧失。为减轻该压力,外科医生可进行椎间盘切除术以切除膨出的NP组织。但是,目前尚无得到批准的恢复丧失的NP组织或修复破损AF的方法,从而使患者有再次发生椎间盘突出和椎间盘退化的风险。先前的组织工程研究提示,仅修复AF或NP是不够的–必须恢复这两个组件以确保得到正面的转归。Stephen Sloan和同事用基于存在于健康结缔组织、软骨、肌肉和皮肤中生物分子的组织工程方法来解决这一问题。通过将透明质酸注射到做过腰椎间盘切除术的活体绵羊的NP中,研究人员改善了NP组织的水合作用和结构完整性。接着,在相同的手术中,研究人员应用了一种交联的胶原蛋白补丁来修复局部受伤的AF组织。在测试6周后,他们的联合疗法大幅改善了绵羊椎间盘的结构和功能。Sloan等人提出,通过进一步的研发和测试,他们的方法可能有朝一日会为改善人类椎间盘切除术患者的转归策略提供信息。

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