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Record W3162447249

Characteristic levels of cytokines and bacteria cause increased gut motility and physical damage in the gastrointestinal system of indomethacin-treated rats

2020· article· en· W3162447249 on OpenAlexaff
Alexandra Proctor

Bibliographic record

VenueUndergraduate Research Journal · 2020
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicGut microbiota and health
Canadian institutionsQueen's University
Fundersnot available
KeywordsIleumContractilityLactobacillusInflammationCytokineFecesInternal medicineMotilityGastrointestinal tractBiologyAcetylcholineMicrobiomeEndocrinologyBacteriaMicrobiologyImmunologyMedicineBioinformatics
DOInot available

Abstract

fetched live from OpenAlex

Inflammatory bowel disease (IBD) presents with chronic intestinal inflammation, which can be replicated in animal model systems with indomethacin treatment. Minimal research has been done to understand the impact of indomethacin treatment and subsequent inflammation on the intestinal system, particularly the microbiome diversity, cytokine levels, and contractile activity. Indomethacin-treated rats were tested for the presence of certain gut bacteria and demonstrated significantly depleted Candidatus savagella and Lactobacillus populations in treated feces samples (P = 0.02 and 0.01, respectively). ELISA assays were run to visualize IL-1a, IL-1b, and IL-6 concentrations in serum samples of control and indomethacin-treated rats, and all three types of cytokines had a significantly increased presence in treated rats (P = 0.001). Contractile activity was measured using control and treated ileum tissues mounted in organ baths. The addition of acetylcholine at its EC50 caused a significant increase in contractility of the indomethacin-treated ileum compared to its control counterpart (P = 0.04). Together, these results suggest that indomethacin treatment increases cytokine levels, depletes Candidatus savagella and Lactobacillus populations in the feces, and increases contractility in the gut, which suggests a more distinct pattern for which to use in disease diagnosis.

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)0.000
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 score0.003
Threshold uncertainty score0.010

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0030.000

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.

Opus teacher head0.063
GPT teacher head0.345
Teacher spread0.282 · 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

Citations0
Published2020
Admission routes1
Has abstractyes

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