Collagen Formation Assessed by N‐Terminal Propeptide of Type 3 Procollagen Is a Heritable Trait and Is Associated With Liver Fibrosis Assessed by Magnetic Resonance Elastography

N‐terminal propeptide of type 3 procollagen (PRO‐C3) is a biomarker of liver fibrosis in nonalcoholic fatty liver disease (NAFLD). This study examines the association between PRO‐C3 concentration and liver fibrosis assessed by magnetic resonance elastography (MRE)–measured stiffness (MRE‐stiffness) and the heritability of PRO‐C3 concentration in a cohort of twins and families with and without NAFLD. We performed a cross‐sectional analysis of a...