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Homozygosity for the PNPLA3 risk allele is linked to liver fat accumulation. In phase 1 trials, JNJ-75220795, a hepatocyte-targeted GalNAc-conjugated PNPLA3 siRNA, reduced liver fat in PNPLA3 I148M homozygous patients with metabolic dysfunction–associated fatty liver disease.
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Fabbrini et al. (2024) studied this question.
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