Hepatic encephalopathy as a result of ammonia-induced increase in GABAergic tone with secondary reduced brain energy metabolism
Michael Sørensen, Jens Velde Andersen, Peter Nissen Bjerring, Hendrik Vilstrup · 2024
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Description
Michael Sørensen and three colleagues argue that a calming brain chemical, not oxygen shortage, drives the confusion of liver failure. In hepatic encephalopathy, ammonia from the failing liver clouds thinking, yet the exact brain events stay debated. Scans show the brain burns less oxygen during episodes.
The authors read that drop as lower demand, not failed supply. Ammonia pushes star-shaped brain cells to make more GABA, the brain's main brake signal. Stronger braking means less work and less oxygen use, which also explains why episodes can reverse. Inflammation can deepen the braking. The model ties scattered clinical clues into one story.
Catalog record
| CREATOR | Michael Sørensen, Jens Velde Andersen, Peter Nissen Bjerring, Hendrik Vilstrup |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 22 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |