AIM
To investigate the role of tissue plasminogen activator (t-PA) and plasminogen activator inhibitor (PAI) in proliferative diabetic retinopathy (PDR) and to discuss the correlations among t-PA, PAI and vascular endothelial growth factor (VEGF) expressions.
METHODS
A total of 36 vitreous samples were collected from 36 patients with PDR (PDR group), and 17 vitreous samples from 17 patients w...