Figure 1From: Chondroprotective effects of a proanthocyanidin rich Amazonian genonutrient reflects direct inhibition of matrix metalloproteinases and upregulation of IGF-1 production by human chondrocytesProanthocyanidin oligomer length for zangrado and progrado. Oligomer length as determined by HPLC was distinctive for the two extracts, zangrado and progrado, of sangre de grado (Croton palanostigma). Short length oligomers were the main source of proanthocyanidins in zangrado, whereas progrado consisted of long chain oligomers. Results reflect mean values for each oligomer length for triplicate analysis.Back to article page