Fat Droplets in Liver Cells (image) Johns Hopkins Medicine Caption The liver cells (magenta) of untreated obese mice (left) contain many large, white droplets of fat while those of obese mice treated with valproic acid (right) have much less fat accumulation. Credit Used with permission. Lindsay B. Avery and Namandjé N. Bumpus. Valproic Acid Is a Novel Activator of AMP-Activated Protein Kinase and Decreases Liver Mass, Hepatic Fat Accumulation, and Serum Glucose in Obese Mice. Mol Pharmacol January 2014; 85:1-10. Usage Restrictions No restrictions with proper citation. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.