Human diabetic serum does not stimulate bovine retinal endothelial cell growth in culture

Abstract
Bovine retinal microvascular endothelial cells were cultured with serum from nondiabetic controls, patients with background, preproliferative proliferative and inactive (treated) proliferative diabetic retinopathy. Using Coomassie Blue to measure cellular protein, we found no significant increase in retinal endothelial cell growth with serum from patients with preproliferative or proliferative retinopathy.