Muscle mitochondrial changes in antisynthetase syndrome and other idiopathic inflammatory myopathies
Bibliographic record
Abstract
Mitochondria are critical for cellular function. Their dysfunction contributes to cell degeneration and death, leading to disease progression. This study examined mitochondrial changes in idiopathic inflammatory myopathies (IIMs) including antisynthetase syndrome (ASyS), dermatomyositis (DM), and inclusion body myositis (IBM). Skeletal muscle biopsies were analyzed using histology, histochemistry, and electron microscopy from patients diagnosed with IIMs, according to the clinico-sero-morphological classification. There was no significant age difference between 16 ASyS and 16 DM patients, but 11 IBM patients were significantly older. The ASyS group had higher serum creatine kinase levels and showed prominent mitochondrial abnormalities similar to IBM and greater than the DM group. While all IIM groups displayed conventional mitochondrial changes, including ultrastructural abnormalities with cristae alterations, paracrystalline inclusions were exclusive to IBM and ASyS. There were significantly more rod-like filamentous inclusions adjacent to mitochondria in the IBM and ASyS groups, compared to the DM group. Intra-mitochondrial filament aggregates with focal formation of inclusions were also identified in individual ASyS and IBM patients, suggesting a link between the mitochondrial filamentous inclusions and nuclear and/or cytoplasmic filamentous inclusions. These findings suggest that mitochondrial abnormalities, particularly in ASyS and IBM, may contribute to the pathogenic process and clinical manifestations of the disease.
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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 | 0.001 | 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) | 0.001 | 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".