Aldose reductase, fructose and fat production in the liver.
Level 5 - mechanism / opinion, no new human data
Narrative review of biochemical mechanisms without original clinical data
PubMed 40040471 · doi:10.1042/BCJ20240748
What was done
This narrative review examined the biochemistry of aldose reductase (AR) and the polyol pathway. It evaluated the regulatory mechanisms governing the conversion of intracellular glucose to endogenous fructose and its role in hepatic fat production and non-alcoholic fatty liver disease (NAFLD).
What was found
The abstract reports no numerical data, effect sizes, or experimental counts. It describes the biochemical mechanism by which elevated glucose activates the aldose reductase-mediated polyol pathway, leading to endogenous fructose and uric acid generation as contributors to NAFLD and metabolic disease.
Why it matters
It highlights endogenous fructose production from glucose via aldose reductase as a potential alternative driver of hepatic steatosis alongside dietary sugar intake.
Limits
This is a narrative, mechanism-based review providing no primary clinical or empirical data, systematic search protocol, or statistical outcomes.
Cited by
- supports The polyol pathway via aldose reductase is the only enzymatic pathway by which the body synthesizes endogenous fructose.
- supports When blood glucose levels rise above 120 mg/dL, the polyol pathway begins converting glucose into fructose.