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Rat model of experimentally induced abacterial prostatitis

2000· article· en· W1988525082 on OpenAlexaff
Michael D. Lang, J. Curtis Nickel, Sean R. Howard, Howard Ceri

Bibliographic record

VenueThe Prostate · 2000
Typearticle
Languageen
FieldMedicine
TopicUrinary Bladder and Prostate Research
Canadian institutionsQueen's UniversityKingston General HospitalUniversity of Calgary
Fundersnot available
KeywordsInflammationProstatitisTumor necrosis factor alphaCytokineProstateInterleukinPathologyInternal medicineEndocrinologyMedicineImmunology

Abstract

fetched live from OpenAlex

BACKGROUND: An experimental model in rats was developed to investigate the significance of mucosal integrity in abacterial prostatitis. METHODS: Ethanol was instilled into the ventral prostates of male rats to reduce mucosal integrity; dinitrobenzenesulfonic acid (DNBS) was added as an irritant to induce inflammation. Controls received no treatment, ethanol only, DNBS only, or a suspension of bacteria. After various time points, rats were sacrificed, and their prostates were assayed for gross morphology, histological appearance, and cytokine levels. RESULTS: Prostates subjected to ethanol plus DNBS showed significant inflammation, most notably after 12, 24, and 48 hr. Inflammation judged by gross and histological observations and interleukin-1beta levels correlated well at these times. Rats given only ethanol, DNBS, or no treatment, acting as negative controls, displayed little or no inflammation; rats given a bacterial suspension, acting as positive controls, showed inflammation consistent with past studies. Cytokine assays revealed raised interleukin-1beta levels in this model, while tumor necrosis factor-alpha remained at a basal level. CONCLUSIONS: The loss of an intact mucosal surface in the prostate resulted in inflammation caused by an irritant. Interleukin-1beta appears to play a role in this inflammation, while tumor necrosis factor-alpha does not.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.006
Threshold uncertainty score0.019

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.001
Science and technology studies0.0010.001
Scholarly communication0.0000.001
Open science0.0010.001
Research integrity0.0010.003
Insufficient payload (model declined to judge)0.0060.001

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.

Opus teacher head0.042
GPT teacher head0.319
Teacher spread0.276 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations34
Published2000
Admission routes1
Has abstractyes

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