A Case-Control Study Supports Genetic Contribution of the Gene Family in Obesity and Metabolic Dysfunction Associated Steatotic Liver Disease

Overview

Journal Antioxidants (Basel)

Date 2024 Sep 28

PMID 39334710

Authors

Evelien Van Dijck

Sara Diels

Erik Fransen

Tycho Canter Cremers

An Verrijken

Eveline Dirinck

Alexander Hoischen

Geert Vandeweyer

Wim Vanden Berghe

Luc Van Gaal

Sven Francque

Wim Van Hul

Affiliations

Soon will be listed here.

Abstract

The paraoxonase () gene family (including PON1, PON2, and PON3), is known for its anti-oxidative and anti-inflammatory properties, protecting against metabolic diseases such as obesity and metabolic dysfunction-associated steatotic liver disease (MASLD). In this study, the influence of common and rare variants on both conditions was investigated. A total of 507 healthy weight individuals and 744 patients with obesity including 433 with histological liver assessment, were sequenced with single-molecule molecular inversion probes (smMIPs), allowing the identification of genetic contributions to obesity and MASLD-related liver features. Polymorphisms rs705379 and rs854552 in the gene displayed significant association with MASLD stage and fibrosis, respectively. Additionally, rare variants were strongly associated with obesity. This study thereby reinforces the genetic foundation of in obesity and various MASLD-related liver features, by extending previous findings from common variants to include rare variants. Additionally, rare and very rare variants in were discovered to be associated with MASLD-related hepatic fibrosis. Notably, we are the first to report an association between naturally occurring rare variants and MASLD-related liver fibrosis. Considering the critical role of liver fibrosis in MASLD outcome, PON2 emerges as a possible candidate for future research endeavors including exploration of biomarker potential.

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