L-arginine-induced chronic pancreatitis in mice: Evaluating effects of pirfenidone and simvastatin
Bibliographic record
Abstract
BACKGROUND Chronic pancreatitis is a progressive, debilitating condition with no standardized treatment. Pirfenidone and simvastatin are potential therapeutic agents that exert anti-inflammatory and antifibrotic effects on pancreatic acinar cells. AIM To evaluate the synergistic effects of pirfenidone and simvastatin in an L-arginine-induced chronic pancreatitis model in mice. METHODS A preclinical, 7-week study was performed using a mouse model of L-arginine-induced chronic pancreatitis. The mice were divided into five groups: Normal control; model control; pirfenidone-treated; simvastatin-treated; and combination-treated (pirfenidone + simvastatin). Treatment started in week 3 after disease induction. Mice were euthanized at weeks 4 and 7 for blood collection and tissue sampling for histological and biomarker analysis, including cytokines, oxidative stress markers, and indicators of fibrosis. RESULTS Combination therapy significantly reduced levels of tumor necrosis factor-alpha (11.10 ± 1.57 pg/mL vs 24.30 ± 2.00 pg/mL), interleukin-10 (11.70 ± 1.12 pg/mL vs 19.60 ± 1.27 pg/mL), and transforming growth factor-beta 1 (236.13 ± 6.95 pg/mL vs 550.52 ± 42.18 pg/mL) at week 7 (P < 0.05 vs model control). The glutathione peroxidase 1 level increased across all treatment groups, significantly in the pirfenidone-treated group (5.47 ± 0.34 IU/mL vs 5.04 ± 0.43 IU/mL; P < 0.05). Lipid peroxidation levels decreased significantly in the combination-treated group (111.87 ± 7.36 mmol/mL vs 192.85 ± 0.98 mmol/mL; P < 0.05). Histology revealed extensive collagen accumulation and damage to the exocrine pancreas in the model control group (vs treatment groups). Combination therapy elicited the least damage. CONCLUSION Combination of pirfenidone and simvastatin demonstrated a synergistic therapeutic effect in reducing inflammation, fibrosis, and oxidative stress in an L-arginine-induced chronic pancreatitis mouse model, suggesting promise for chronic pancreatitis management.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".