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Record W3159694638 · doi:10.15173/sciential.v1i3.2251

Alternative Treatment for Alzheimer’s Disease: Porphyromonas gingivalis Inhibitors

2019· article· en· W3159694638 on OpenAlexaffvenue
Pouriya Sadeghighazichaki

Bibliographic record

VenueSciential - McMaster Undergraduate Science Journal · 2019
Typearticle
Languageen
FieldMedicine
TopicAlzheimer's disease research and treatments
Canadian institutionsMcMaster University
Fundersnot available
KeywordsPorphyromonas gingivalisNeuroinflammationProteasesNeurodegenerationVirulence factorAmyloid (mycology)Periodontal pathogenPeriodontitisMicrobiologyInflammationVirulenceMedicineBiologyImmunologyDiseasePathologyInternal medicineBiochemistryEnzyme

Abstract

fetched live from OpenAlex

Porphyromonas gingivalis (P. gingivalis), has been identified as a primary pathogen in causing chronic periodontitis, or gum inflammation. P. gingivalis was also isolated in brain samples of patients suffering from Alzheimer’s disease. A virulence factor of P. gingivalis called gingipains, releases proteases responsible for neurodegeneration and has been identified in the brain of patients suffering from Alzheimer’s. Studies show that mice infected with P. gingivalis demonstrate an increase in amyloid plaque deposition in brain samples. Further investigation identified gingipains as a neurotoxic agent, both in vivo and in vitro, which impacts the structure of tau protein, responsible for the normal functioning of neurons. Small-molecule inhibitors targeting gingipains are utilized to prevent the neurotoxic effects of gingipains and facilitate neuronal regeneration. Inhibition of this virulence factor reduced the overall bacterial load, blocked amyloid-beta production, prevented neuroinflammation, and allowed for neuronal recovery. These findings provide a new outlook for the onset of Alzheimer’s disease and elucidate a much-needed potential treatment for the condition.

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: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.006
Threshold uncertainty score0.020

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.001
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 head0.047
GPT teacher head0.345
Teacher spread0.298 · 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 designNot applicable
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

Citations1
Published2019
Admission routes2
Has abstractyes

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