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HAEMOPHILIA:血友病性关节炎患者韧带病理变化和表达观察

2021-10-29 MedSci原创 MedSci原创

嗜血性关节炎(HA)是血友病患者最常见和最严重的并发症,可导致晚期关节功能障碍和残疾。

嗜血性关节炎(HA)是血友病患者最常见和最严重的并发症,可导致晚期关节功能障碍和残疾。以往对HA的病理机制的研究主要集中在滑膜骨、软骨骨和软骨下骨病变上。目前还没有学者研究HA患者韧带组织的病理变化。HA在病因上与骨关节炎(OA)有很大的不同,我们注意到HA和OA患者在TKA手术中韧带的形态学特征有很大的不同。因此,研究血友病性关节炎(HA)患者韧带的病理变化,对于指导全膝关节置换术(TKA)中韧带的释放和探索预防韧带病变的干预措施具有重要意义。

国外一研究团队进行了一项研究,观察HA患者与骨性关节炎(OA)患者韧带组织中赖氨酸氧化酶(LOX)、基质金属蛋白酶(MMP)-1、-2、-3水平的病理变化,旨在探讨HA患者韧带组织中赖氨酸氧化酶(LOX)、基质金属蛋白酶(MMP)-1、-2、-3水平的变化。

研究采用Masson三色染色法、verhoff - van Gieson染色法、苏木精-伊红染色法,观察韧带的基本病理变化。western blot检测I型胶原、弹性蛋白、LOXs和MMP-1、-2、-3的表达水平。通过实时荧光定量PCR检测LOX和MMP-1、-2、-3 mRNA的表达水平。

结果显示与OA韧带相比,HA韧带结构更松散,间隙更宽,断裂更多,血细胞沉积和纤维间局部肥大。HA组织中LOXs和MMPmRNA表达水平上调,这与western印迹结果一致。HA患者的胶原蛋白和弹性蛋白水平也较高。

研究得出结论,HA患者的韧带代谢比OA患者更复杂,HA患者的韧带有更强的愈合和破坏过程。这种病理与铁超载和反复关节内出血引起的不平衡炎症因子有关。

原始出处:

Zheng, L, Luo, D, Li, J, et al. Pathological changes and expression of lysine oxidases and matrix metalloproteinases -1, -2, and -3 in ligaments of patients with haemophilic arthritis. Haemophilia. 2021; 1- 6. https://doi.org/10.1111/hae.14443

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    2022-05-19 changfy
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    2021-10-31 lmm397
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