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Record W2035291130 · doi:10.1002/biof.5520180220

Derivatised α‐tocopherol as α CoQ<sub>10</sub> carrier in a novel water‐soluble formulation

2003· article· en· W2035291130 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueBioFactors · 2003
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicCoenzyme Q10 studies and effects
Canadian institutionsInstitute for Biological Sciences
FundersNational Research Council Canada
KeywordsIschemiaTocopherolVitamin ENeuroprotectionChemistryVitaminPharmacologyAntioxidantMedicineInternal medicineAnesthesiaBiochemistry

Abstract

fetched live from OpenAlex

We have derivatised alpha-tocopherol (vitamin E) to a water-soluble polyoxyethanyl-alpha - tocopheryl sebacate (PTS) and discovered that it formed a non-covalent complex with CoQ10 at a molar ratio of 2:1 (PTS-CoQ10). This complex was water-soluble and remained stable for extended periods of time. After oral delivery of the formulation into rats PTS was hydrolysed to vitamin E and elevated levels of both vitamin E and CoQ10 in blood plasma were detected within 1 h. Thus, this aqueous formulation contains a combination of two potent antioxidants. The formulation's efficacy was tested against ischemic brain damage caused by a transient (8 min) bilateral occlusion of the common carotid arteries in rats. The animals received PTS-CoQ10 by two intraperitoneal injections given immediately after ischemia and 3 h later and the brain damage was assessed up to 12 days post-ischemia. A significant neuroprotection was observed in the CA1 hippocampal region, for example at 12 days approximately 50% of CA1 neurons were still alive in the treated animals versus less than 5% in the non-treated group. Our data is consistent with previously published observations indicating the therapeutic potential of antioxidants for treatments of ischemia/reperfusion injuries and the formulation described here is particularly appropriate for the application in acute conditions, such as stroke or cardiac arrest.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation 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 score0.055
Threshold uncertainty score0.663

Codex and Gemma teacher scores by category

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)0.0000.000

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 head0.010
GPT teacher head0.233
Teacher spread0.223 · 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