Hepatic inositol 1,4,5 trisphosphate receptor type 1 mediates fatty liver
Bibliographic record
Abstract
Fatty liver is the most common type of liver disease, affecting nearly one third of the U.S. population and more than half a billion people worldwide. Abnormalities in endoplasmic reticulum (ER) calcium handling and mitochondrial function each have been implicated in abnormal lipid droplet formation. Here we show that the type 1 isoform of the inositol 1,4,5‐trisphosphate receptor (InsP3R1) specifically links ER calcium release to mitochondrial calcium signaling and lipid droplet formation in hepatocytes. Moreover, liver‐specific InsP3R1 knockout mice have impaired mitochondrial calcium signaling, decreased hepatic triglycerides, and reduced lipid droplet formation and are resistant to the development of fatty liver. Patients with nonalcoholic steatohepatitis, the most malignant form of fatty liver, have increased hepatic expression of InsP3R1, and the extent of ER–mitochondrial colocalization correlates with the degree of steatosis in human liver biopsies.Conclusion: InsP3R1 plays a central role in lipid droplet formation in hepatocytes, and the data suggest that it is involved in the development of human fatty liver disease. (HepatologyCommunications2017;1:23–35)
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".