Science

Scientists Find Enzyme That May Slow Fatty Liver Disease Damage

2 min read · 2026-10-04

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A mouse study found that a natural enzyme may help limit fatty liver disease damage. The disease affects an estimated 100 million Americans, but the findings do not yet establish a treatment for people.

100 millionAmericans estimated to have fatty liver disease

The facts

  • 1Fatty liver disease, now often called MASLD, develops when excess fat builds up inside liver cells over time.
  • 2A Cedars-Sinai-led preclinical study found that the enzyme UBE2N helps liver cells remove damaged mitochondria, the structures that supply energy.
  • 3The condition already affects an estimated 100 million people in the United States, often without any noticeable early symptoms.
  • 4Left untreated, the disease can progress to inflammation, scarring called cirrhosis, and in severe cases liver cancer.
  • 5Restoring UBE2N reduced fat, inflammation and scarring in laboratory mice. This early result does not establish that boosting the enzyme is a safe or effective treatment for people.

Why it matters

Fatty liver disease is common and frequently silent until it is advanced; finding a natural molecular defense opens a path toward catching and treating it earlier.

Sources

Correction : The reported benefits were observed in mice. They do not establish a treatment for people. An earlier version also incorrectly credited NIDDK as a source.

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