Hepatocellular carcinoma: Putative interactive mechanism between aflatoxins and hepatitis viral infections implicating oxidative stress during the onset and progression of cance
Why this work is in the frame
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Bibliographic record
Abstract
The association of hepato- cellular carcinoma (HCC) with hepatitis B virus (HBV), hepatitis C virus (HCV) and mycotoxins, especially aflatoxins, has been established. Mycotoxins are com- monly encountered by the consumption of mycotoxin-contaminated food by African and Asian populations. A number of mechanisms contribute to the high risk of HCC in individuals with both aflatoxin B 1 (AFB 1 )-DNA adducts and hepatitis B surface antigen (HBsAg), and a viral- chemical interaction has been confirmed. Among the various suggested mecha- nisms, oxidative stress exacerbates the co-exposure of aflatoxins and chronic hepatitis infections. This increases the rate of DNA unwinding, supercoiling and/ or overstretching. It is hypothesized that these processes are promoted by reac- tive oxygen/nitrogen species (ROS/RNS) generated during HBV or HCV infections, which allow aflatoxin metabolites to inter - calate between DNA strands with their hydroxyl radicals. The aflatoxin metab - olites may attack the ribose in the DNA backbone where the bases reside. These complex reactions result in modification of the energetics of DNA transcription and replication as well as a concomitant mutation in the p53 tumor suppressor gene. The hypothesis described here may generate novel ideas, which could lead to further hypothesis-driven experiments aimed at improving strategies for the pre- vention and treatment of HCC. BACKGROUND Hepatitis B Virus
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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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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 it