Genetic markers of neurodegeneration: a role for paraoconase 1 in sporadic Alzheimer's disease?
Bibliographic record
Abstract
Mounting evidence points to increased oxidative stress and disruption of cholesterol homeostasis as being crucial events implicated in Alzheimer's disease (AD) etiopathology. Paraoxonase1 (PON1) is a high-density lipoprotein-associated antioxidant enzyme that functions to protect both lipids and the cholinergic system, the primary neurotransmitter system affected in AD, from respectively oxidation and organophosphate compounds. Using a large and homogeneous cohort of Quebec citizens, we therefore sought to investigate the involvement of PON1 in AD. We found that a single nucleotide polymorphism (SNP) in the PON1 gene not only exerts an AD risk enhancing effect but also a paradoxical survival rate increasing effect and a later age at AD symptom onset. This SNP is also significantly associated, sometimes in opposite directions for both sexes, with beta-amyloid levels, senile plaque accumulation and choline acetyltransferase activity in numerous brain areas. Thus, these results suggest a prominent role for PON1 in the etiopathology of AD.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".