label: Elevated circulating type I procollagen aminoterminal propeptide concentration
label_lc: elevated circulating type i procollagen aminoterminal propeptide concentration
description: "The concentration of type I procollagen aminoterminal propeptide in the blood circulation is above the upper limit of normal. The aminoterminal propeptide of type I procollagen (PINP) in serum is a sensitive indicator of the synthesis of type I collagen."