The purpose of this study was to investigate if Hyaluronic Acid (HA), TIMP metallopeptidase inhibitor 1 (TIMP1), and Amino-terminal Propeptide of Type III Collagen (PIIINP) alone or combined as an Enhanced Liver Fibrosis (ELF) score, associate with histological liver disease in neonatal baboons exposed to PN with and without intralipids. The gene discussed is TIMP1; the disease is Hepatic fibrosis.