CARACTERIZACIÓN DE CÉLULAS CEPILLO DEL CEREBELO TRATADAS POR EXPOSICION PROLONGADA DE LA MUESTRA AL ALCOHOL ISOPROPILICO EN VARIANTE DE IMPREGNACIÓN ARGENTICA
Bibliographic record
Abstract
Resumen Las celulas cepillo son neuronas glutamatergicas de la capa granular en la corteza cerebelosa que constan de 3 (tres) o mas subtipos, caracterizados por fenotipos quimicamente distintos, propiedades intrinsecas para formar sinapsis y patrones de descarga particulares. Dichas celulas no fueron identificadas por metodos de impregnacion argentica hasta 1994, cuando Mugnaini realiza su descripcion. En este trabajo presentamos una variante de impregnacion argentica, en el cual las muestras son sumergidas en alcohol isopropilico y luego sometidas a lavados con alcohol etilico proporcionando un proceso de rapida impregnacion que reduce la observacion de precipitados, y donde la cristalizacion se realiza de manera uniforme, lo que permite observar la integridad del cuerpo celular y sus procesos, aumentando tanto la fiabilidad de la tecnica como reproducibilidad de la tincion y facilita la toma de sus dimensiones. Tambien se destaca que el medio de montaje influye en la conservacion de la calidad temporal del preparado, con una mejora de la preservacion utilizando Permount vs Balsamo de Canada. Palabras clave: Celulas cepillo, tecnica de Golgi, alcohol isopropilico, alcohol etilico, balsamo de Canada, Permount. Summary Brush cells in the cerebellum are glutamatergic neurons of the granular layer. They are divided into three or more subtypes and were not identified by silver impregnation methods until 1994, when Mugnaini identified them using a variant of Golgi method. To make evident brush cells of the Wistar rat cerebellum, we developed a modification of the silver impregnation techniques. The improvement of method is due to the immersion of tissue sections in isopropyl alcohol following sequential washes with ethyl alcohol. It provide a quick impregnation, diminish precipitate outside cells, and the crystallization is more uniform. Morphological and morphometric studies of brush neurons stained with this technique are easy because the cell body and its processes are well observed. We also observed quality differences in the final preparation according with the mounting medium used. An improvement of the preservation was observed using Permount medium. Keywords : Brush cells, Golgi technique, isopropyl alcohol, ethyl alcohol, Canada balsam, Permount
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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 | 0.000 | 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) | 0.001 | 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".