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Record W2146943861 · doi:10.1002/biof.5520180222

Cytoprotective and anticancer properties of coenzyme Q versus capsaicin

2003· article· en· W2146943861 on OpenAlexaff
Giuseppe Galati, Peter J. O’Brien

Bibliographic record

VenueBioFactors · 2003
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicCoenzyme Q10 studies and effects
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsCapsaicinRotenoneChemistryMitochondrionApoptosisCytotoxicityLipid peroxidationInner mitochondrial membraneReactive oxygen speciesCytotoxic T cellMembrane potentialMitochondrial respiratory chainProgrammed cell deathBiophysicsRespiratory chainBiochemistryCell biologyPharmacologyOxidative stressBiologyIn vitro

Abstract

fetched live from OpenAlex

Coenzyme Q (CoQ) is an essential component of the mitochondrial electron transport chain and serves as an electron donor and acceptor in mitochondrial energy-linked respiration. CoQ1 was shown to prevent ROS formation and cell death in complex 1 inhibited cells. Low concentrations of capsaicin like CoQ1 inhibited ROS formation but CoQ1 was more effective at restoring the mitochondrial membrane potential collapse caused by complex 1 inhibitors such as rotenone. At low concentrations, capsaicin acts as a CoQ mimic by protecting against rotenone induced ROS formation and mitochondrial membrane potential collapse. Lipid peroxidation in isolated rat hepatocytes induced by cumene hydroperoxide and chloroacetaldehyde was also prevented. At higher concentrations, capsaicin and CoQ1 became cytotoxic. Hep G2 cells were more susceptible than hepatocytes. The cytotoxic mechanism for both capsaicin and CoQ1 was shown to involve a collapse of the mitochondrial membrane potential, however, only capsaicin caused ROS formation. The capsaicin side chain was required for capsaicin induced cytotoxicity. The anticancer properties of CoQ1 and capsaicin should prove useful for inducing tumor cell apoptosis.

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 head0.020
GPT teacher head0.233
Teacher spread0.213 · 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

Citations25
Published2003
Admission routes1
Has abstractyes

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