What question did this study set out to answer?

This research aimed to explore how the GKRP P446L variant influences liver lipid and cholesterol metabolism.

June 20, 2026Molecular MetabolismOpen Access

Glucokinase activity suppresses hepatic cholesterol synthesis and triglyceride accumulation: A new model for the effects of the GKRP P466L common human variant

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Randomized trial investigates hepatic cholesterol and triglyceride impact of GKRP P446L variant, indicating metabolic implications.

This research aimed to explore how the GKRP P446L variant influences liver lipid and cholesterol metabolism.
Developed mouse models to assess the impact of GKRP P446L on liver metabolism.
Ablated endogenous Gckr expression in adult mouse hepatocytes and re-expressed GKRP variants.
Evaluated body weight, glucose homeostasis, and hepatic metabolites under various metabolic conditions.
GKRP P446L expression reduced GKRP and GCK protein levels and elevated serum cholesterol.
Liver-specific deletion of Gck mirrored GKRP P446L effects, increasing hepatic cholesterol and triglycerides.
Impaired glucose phosphorylation linked to elevated cholesterogenic gene expression and abnormal lipid levels.

Santoleri et al. (2026) studied this question.

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