CAT and metabolic dysfunction-associated steatohepatitis: Regarding CAT mRNA expression, an increase in mRNA levels was described in adults with simple steatosis (Aljomah et al. 2015; Ashla et al. 2010; Kohjima et al. 2007), adults with MASH (Aljomah et al. 2015; Baker et al. 2010) as well as in pediatric MASH patients (Desai et al. 2014; Moya et al. 2015) as compared to the levels in the normal liver, respectively.