Research Article

Matrix Metalloproteinase-2 Isoforms Differ within the Aortic Wall of Ascending Aortic Aneurysms Associated with Bicuspid Aortic Valve

Table 2

Results of zymography and ELISA (MMP-2 isoforms given in AU and MMP-14, TIMP-2, MMP-9, and TIMP-1 given in ng/ml).

ProteinMean protein level (SD) BAVTAV

Pro-MMP-2
 Anterior155.71 (56.63)155.25 (59.31)
 Posterior200.52 (37.54)167.00 (57.39)
 Averaged178.11 (34.73)161.12 (47.19)
Active MMP-2
 Anterior23.42 (10.05)28.98 (13.47)
 Posterior34.70 (18.89)35.25 (22.37)
 Averaged29.06 (8.81)32.12 (11.54)
Total MMP-2
 Anterior180.66 (53.64)185.11 (56.00)
 Posterior235.22 (48.69)202.25 (71.42)
 Averaged207.94 (41.05)193.68 (50.39)
MMP-14
 Anterior2.86 (0.93)3.61 (2.02)
 Posterior3.56 (1.59)4.06 (2.07)
 Averaged3.21 (0.95)3.84 (1.35)
TIMP-2
 Anterior18.72 (8.40)20.13 (9.45)
 Posterior26.90 (9.84)25.36 (12.78)
 Averaged22.81 (7.81)22.75 (8.31)
MMP-9
 Anterior14.56 (17.63)15.56 (19.93)
 Posterior17.60 (15.68)20.32 (33.24)
 Averaged16.08 (14.45)17.94 (24.98)
TIMP-1
 Anterior21.23 (14.01)35.30 (25.75)
 Posterior23.13 (15.86)34.82 (23.82)
 Averaged22.18 (13.52)35.06 (21.81)

BAV: bicuspid aortic valve; TAV: tricuspid aortic valve; AU: arbitrary units; SD: standard deviation.