Non-Alcoholic Fatty Liver Disease in HIV Infection Associated with Altered Hepatic Fatty Acid Composition
Bibliographic record
Abstract
Hepatic fatty acid (FA) composition, especially a reduction in n-3 polyunsaturated FA (PUFA) may contribute to the pathogenesis of non-alcoholic fatty liver disease (NAFLD), which is common in HIV-infection.. In a cross-sectional study we compared hepatic FA composition between 20 HIV-infected men with NAFLD (HIV/NAFLD), 21 HIV-negative men with NAFLD (NAFLD), and 7 healthy controls. Within HIV/NAFLD we compared simple steatosis (HIV/SS) to steatohepatitis (HIV/NASH). FA composition in liver and erythrocytes, oxidative stress, diet, and exercise were assessed. Major findings (P<0.05) were: 1) higher hepatic n-6/n-3 ratio in HIV/NAFLD [median (range)] [8.08 (1.08-21.52)] compared to controls [5.83 (3.58-6.93)] and NAFLD [5.97 (1.46-10.40)], with higher n-6 PUFA in HIV/NAFLD compared to NAFLD; 2) lower n-3 PUFA in erythrocytes (mol%), a marker for dietary intake, in HIV/NAFLD [5.26 (1.04-11.75)] compared to controls [8.92 (4.79-12.67)]; 3) the ratios of long-chain PUFA products to essential FA precursors of the n-6 and n-3 series were lower in HIV/NAFLD and NAFLD compared to controls. In contrast, the ratio of oleic/stearic acid was higher in HIV/NAFLD compared to the other groups. These ratios are indirect markers of enzymatic FA desaturation and elongation. Hepatic PUFA, especially biologically active long-chain PUFA, were also lower in HIV/NASH compared to HIV/SS. Oxidative stress was not different among the groups. We conclude that HIV/NAFLD is associated with altered hepatic FA composition. Changes may be due to impaired FA metabolism or suboptimal n-3 PUFA intake. The potential role of n-3 PUFA (e.g. fish oil) to treat or prevent HIV/NAFLD warrants further investigation.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".