Abstract:
OBJECTIVE:To investigate the expression and clinical significance of both matrix metalloproteinase-2 (MMP-2) and its tissue inhibitor (tissue inhibitor of metalloproteinase-2 (TIMP-2)) in tunica media of radial artery in uremic patients. METHODS:The modified radial arteries from 80 uremic patients during internal arteriovenous fistula surgery were selected and used as experimental specimens. The calcification of tunica media was observed by alizarin red staining, and the expression status of MMP-2, TIMP-2, osteoprotegerin (OPG), and osteopontin (OPN) in tunica media of radial arteries of these patients was detected by immunohistochemical method. The semiquantitative analysis and comparison were conducted based on the calcification grading and the expression of each test protein in tunica media of radial artery. RESULTS:Of the 80 cases of radial artery specimens, 37 cases were presented with various degrees of calcification of tunica media, and the calcification rate was 46.25%; the expression of MMP-2, TIMP-2, OPG, and OPN could be detected in the calcificated tunica media of the radial artery and was positively correlated with the degree of vascular calcification (p < 0.05). CONCLUSION:The incidence of vascular calcification in uremic patients was high. The occurrence of calcification in tunica media of the radial artery was correlated with the expression of MMP-2 and TIMP-2.
journal_name
Ren Failjournal_title
Renal failureauthors
Shan A,Zhou C,He Y,Feng W,Chen G,Zhong Gdoi
10.3109/0886022X.2012.741645subject
Has Abstractpub_date
2013-01-01 00:00:00pages
37-42issue
1eissn
0886-022Xissn
1525-6049journal_volume
35pub_type
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