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Record W3086941314 · doi:10.1002/ptr.6814

<scp><i>Lathyrus sativus</i></scp> diamine oxidase reduces <scp><i>Clostridium difficile</i></scp> toxin A‐induced toxicity in Caco‐2 cells by rescuing <scp>RhoA‐GTPase</scp> and inhibiting <scp>pp38‐MAPK</scp>/<scp>NF‐κB</scp>/<scp>HIF</scp>‐1α activation

2020· article· en· W3086941314 on OpenAlexafffund
Paola Pietrangeli, Chiara Corpetti, Luisa Seguella, Alessandro Re, Marcella Pesce, Martina Vincenzi, Chiara Lori, Giuseppe Annunziata, Mircea Alexandru Mateescu, Giovanni Sarnelli, Giuseppe Esposito, Lucia Marcocci

Bibliographic record

VenuePhytotherapy Research · 2020
Typearticle
Languageen
FieldMedicine
TopicClostridium difficile and Clostridium perfringens research
Canadian institutionsUniversité du Québec à Montréal
FundersCourtois Foundation
KeywordsClostridium difficile toxin ARHOAClostridium perfringensOccludinCaco-2Clostridium difficile toxin BDiamine oxidaseMicrobiologyBiologyViability assayTumor necrosis factor alphaMolecular biologyClostridium difficilePharmacologyChemistryApoptosisBiochemistrySignal transductionImmunologyTight junctionCellAntibiotics

Abstract

fetched live from OpenAlex

Clostridium difficile toxin A (TcdA) impairs the intestinal epithelial barrier, increasing the mucosa permeability and triggering a robust inflammatory response. Lathyrus sativus diamino oxidase (LSAO) is a nutraceutical compound successfully used in various gastrointestinal dysfunctions. Here, we evaluated the LSAO (0.004-0.4 μM) ability to counter TcdA-induced (30 ng/mL) toxicity and damage in Caco-2 cells, investigating its possible mechanism of action. LSAO has improved the transepithelial electrical resistance (TEER) score and increased cell viability in TcdA-treated cells, significantly rescuing the protein expression of Ras homolog family members, A-GTPase (RhoA-GTPase), occludin, and zonula occludens-1 (ZO-1). LSAO has also exhibited an anti-apoptotic effect by inhibiting the TcdA-induced expression of Bcl-2-associated X protein (Bax), p50 nuclear factor-kappa-B (p50), p65nuclear factor-kappa-B (p65), and hypoxia-inducible transcription factor-1 alpha (HIF-1α), and the release of tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and vascular endothelial growth factor (VEGF) in the cell milieu. Our data showed that LSAO exerts a protective effect on TcdA-induced toxicity in Caco-2 cells, placing itself as an interesting nutraceutical to supplement the current treatment of the Clostridium difficile infections.

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 score0.001
Threshold uncertainty score0.004

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.053
GPT teacher head0.318
Teacher spread0.265 · 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

Citations7
Published2020
Admission routes2
Has abstractyes

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