Metformin inhibits hepatic gluconeogenesis in mice independently of the LKB1/AMPK pathway via a decrease in hepatic energy state
What this study shows
The paper that broke the simple 'metformin works through AMPK' story. Metformin still suppressed hepatic glucose production in mice and hepatocytes lacking AMPK or LKB1, acting instead through a fall in hepatic energy charge. Any claim that metformin's benefit is AMPK-mediated has to answer this result.
At a glance
| Evidence type | A Animal model Marked A because it is an animal intervention or observation study measuring an organismal outcome (model: Mouse (liver-specific AMPK-null and LKB1-null); primary hepatocytes); the code names the system studied -- animal work can be rigorous and still not be human data. |
| Study type | 4 - Animal Study |
| Model system | Mouse (liver-specific AMPK-null and LKB1-null); primary hepatocytes |
| Journal | The Journal of Clinical Investigation |
| Year | 2010 |
| Peer reviewed | Yes |
| Record last updated | 2026-07-29 |
| Source | DOI 10.1172/JCI40671 · PMID 20577053 |
Extracted findings
These fields were extracted from the paper with AI assistance and have not been checked against the source. Read them as a pointer into the paper, not as curated claims; where they disagree with the curated summary above, the curated summary stands.
| Intervention | Metformin in AMPK-null / LKB1-null mouse liver |
| Target | Hepatic energy state (AMPK-independent) |
| Model | Mouse |
| Effect | Metformin suppresses hepatic gluconeogenesis without AMPK or LKB1, via reduced hepatic energy charge |
In the Atlas
Related topics
More studies on this topic
- ATM signals to TSC2 in the cytoplasm to regulate mTORC1 in response to ROS (2010)
- Regulation of the TSC pathway by LKB1: evidence of a molecular link between tuberous sclerosis complex and Peutz-Jeghers syndrome (2004)
- The LKB1 tumor suppressor negatively regulates mTOR signaling (2004)
- The tumor suppressor LKB1 kinase directly activates AMP-activated kinase and regulates apoptosis in response to energy stress (2004)
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