Alterations in myelination in the central nervous system of dystonia musculorum mice
Bibliographic record
Abstract
Dystonia musculorum (dt) is an autosomal recessive sensory neuropathy in mice resulting from a mutation in the gene encoding the cytoskeletal linker protein Bpag1. In addition to neurodegeneration, dt mice display myelination abnormalities in the peripheral nervous system. In this report we investigated whether myelination abnormalities are also present in the central nervous system of dt(Tg4) mice. Transcripts for both neural isoforms of Bpag1 (a1 and a2) were detected in optic nerves and spinal cords of wild-type mice. Light microscopy of resin-embedded thin sections revealed a reduction in myelinated axons in both optic nerves and spinal cords in dt(Tg4) mice. As well, hypermyelinated axons were detected in these tissues. Ultrastructural analysis of optic nerves and spinal cords from dt(Tg4) mice revealed an increase in the number of amyelinated axons, the presence of hypo- and hypermyelinated axons, and redundant myelin that course away from axons. Changes in the level of myelin proteins accompanied the morphological alterations. Myelin-associated glycoprotein levels were reduced in optic nerves of dt(Tg4) mice, and myelin basic protein levels were altered in optic nerves, sciatic nerves, and spinal cords of affected mice. Short-term cultures of oligodendrocytes derived from dt(Tg4) mice did not show morphological alterations.
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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 | 0.002 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".