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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Local tissue reaction and differentiation of the prosthesis-specific antibody response following functional implantation of vascular grafts in pigs.
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Local tissue reaction and differentiation of the prosthesis-specific antibody response following functional implantation of vascular grafts in pigs.

机译:在猪中进行功能性血管植入后,局部组织反应和假体特异性抗体反应的分化。

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The study was aimed at investigating the local tissue reactions through a histological examination of beta-1-integrin expression and neointima formation, and humoral immune responses by detection of prosthesis-specific antibodies, after functional implantation of vascular prostheses. In three groups of pigs, the infrarenal aorta was replaced with segments of collagen-impregnated Dacron-prostheses: M-prosthesis--medium primary porosity, double velour layer, crimping; C-prosthesis--low primary porosity, no velour, crimping; T-prosthesis--high primary porosity, no velour, no crimping. For each prosthesis type, one series with four animals was used for examining the tissue reactions, and a second series with eight animals was used to study the antibody response, both until 116 days postoperative. In the first three weeks, the M-prosthesis caused the highest tissue reactions and the highest antipolyester antibodies, but the lowest anticollagen antibodies, whereas the T-prosthesis caused the highest anticollagen antibodies, but the least tissue response and antipolyester antibodies in the early phase. On day 116, the C-prosthesis caused the highest tissue reactions and highest polyester-specific antibodies. These results indicate a possible association between local inflammatory reactions and humoral immune responses, influenced by properties of vascular grafts.
机译:这项研究的目的是通过组织学检查功能性植入血管假体后,通过组织学检查β-1整合素的表达和新内膜的形成以及体液免疫反应来研究局部组织反应。在三组猪中,肾下主动脉被胶原蛋白浸渍的涤纶假体片段代替:M假体-中等初级孔隙度,双层丝绒层,压接; C型假体-初级孔隙率低,无丝绒,压接; T型假体-高孔隙率,无丝绒,无卷曲。对于每种假体类型,使用一组包含四只动物的系列检查组织反应,使用第二组包含八只动物的第二组研究抗体反应,直到术后116天。在最初的三周中,M修复物在早期引起最高的组织反应和最高的抗聚酯抗体,但抗胶原蛋白抗体最低,而T修复物在早期引起最高的抗胶原蛋白抗体,但组织反应和抗聚酯抗体最少。 。在第116天,C型假体引起最高的组织反应和最高的聚酯特异性抗体。这些结果表明,局部炎症反应与体液免疫反应之间可能存在关联,受血管移植物特性的影响。

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