COL6A2 and metabolic dysfunction-associated steatohepatitis: They found that three of these genes—collagen type VI alpha 2 chain (COL6A2), coiled-coil domain-containing protein 80 (CCDC80), and extracellular superoxide dismutase (SOD3)—may serve as serum biomarker candidates for diagnosing simple steatosis (COL6A2), fibrosis, and NASH (CCDC80, SOD3) [11].