当前位置: X-MOL 学术J. Biomed. Mater. Res. Part A › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Treatment with bisphosphonates to mitigate calcification of elastin-containing bioprosthetic materials.
Journal of Biomedical Materials Research Part A ( IF 4.9 ) Pub Date : 2020-04-09 , DOI: 10.1002/jbm.a.36927
Irina Y Zhuravleva 1 , Yuliya F Polienko 2 , Elena V Karpova 2 , Tatyana P Timchenko 1 , Maria B Vasilieva 1 , Ludmila A Baratova 3 , Svetlana S Shatskaya 4 , Elena V Kuznetsova 1 , Nataliya R Nichay 1 , Natalia Beshchasna 5 , Alexander V Bogachev-Prokophiev 1
Affiliation  

This study evaluated the ability of bisphosphonates (BPAs) of different molecular structures to mitigate the calcification of porcine aortic wall (PAW) and bovine jugular vein wall (BJVW). Tissues cross‐linked with glutaraldehyde (GA) or diepoxide (DE) were modified with pamidronic acid (PAM), alendronic acid (ALE), neridronic acid (NER) (type 1 BPAs); 2‐(2′‐carboxyethylamino)ethylidene‐1,1‐bisphosphonic acid (CEABA), 2‐(5‐carboxypentylamino)ethylidene‐1,1‐bisphosphonic acid (CPABA) (type 2); and zoledronic acid (ZOL) (type 3). After implanting the tissue samples subcutaneously in 100 rats, calcification was examined using atomic absorption spectrophotometry (60‐day explants) and light microscopy after von Kossa staining (10‐ and 30‐day explants). The calcium contents in GA‐BJVW and GA‐ and DE‐PAW increased up to 100–120 mg/g after 60 days, while being 3 times lower in DE‐BJVW. In modified and nonmodified PAW samples, calcium phosphates appeared by day 10 and were associated with elastic fibers and devitalized cellular elements. In all groups of BJVW samples, mineralization began in elastic fibers near the subendothelial layer. In addition, calcified collagen was found in the GA‐BJVW samples. Minimal calcification was found in GA‐PAW treated with type 1 BPAs and CEABA. For DE‐PAW and GA‐BJVW, the calcium level significantly decreased with PAM and CEABA. Meanwhile, ALE and NER were effective for DE‐BJVW.

中文翻译:

用双膦酸盐治疗以减轻含弹性蛋白的生物假体材料的钙化。

本研究评估了不同分子结构的双膦酸盐 (BPA) 减轻猪主动脉壁 (PAW) 和牛颈静脉壁 (BJVW) 钙化的能力。用戊二醛(GA)或双环氧化物(DE)交联的组织用帕米膦酸(PAM)、阿仑膦酸(ALE)、奈立膦酸(NER)(1型双酚A)修饰;2-(2'-carboxyethylamino)ethylidene-1,1-bisphosphonic acid (CEABA), 2-(5-carboxypentylamino)ethylidene-1,1-bisphosphonic acid (CPABA) (type 2); 和唑来膦酸 (ZOL)(3 型)。在 100 只大鼠皮下植入组织样本后,使用原子吸收分光光度法(60 天外植体)和 von Kossa 染色后的光学显微镜检查钙化(10 天和 30 天外植体)。60 天后,GA-BJVW 和 GA-和 DE-PAW 中的钙含量增加至 100-120 mg/g,而在 DE-BJVW 中则低 3 倍。在修饰和未修饰的 PAW 样品中,磷酸钙在第 10 天出现,并与弹性纤维和失活的细胞元素相关联。在所有 BJVW 样品组中,矿化开始于内皮下层附近的弹性纤维中。此外,在 GA-BJVW 样品中发现了钙化胶原蛋白。在用 1 型双酚 A 和 CEABA 处理的 GA-PAW 中发现了最小的钙化。对于 DE-PAW 和 GA-BJVW,PAM 和 CEABA 的钙水平显着降低。同时,ALE 和 NER 对 DE-BJVW 有效。此外,在 GA-BJVW 样品中发现了钙化胶原蛋白。在用 1 型双酚 A 和 CEABA 处理的 GA-PAW 中发现了最小的钙化。对于 DE-PAW 和 GA-BJVW,PAM 和 CEABA 的钙水平显着降低。同时,ALE 和 NER 对 DE-BJVW 有效。此外,在 GA-BJVW 样品中发现了钙化胶原蛋白。在用 1 型双酚 A 和 CEABA 处理的 GA-PAW 中发现了最小的钙化。对于 DE-PAW 和 GA-BJVW,PAM 和 CEABA 的钙水平显着降低。同时,ALE 和 NER 对 DE-BJVW 有效。
更新日期:2020-04-09
down
wechat
bug