Gene expression of tryptophan hydroxylase 2 in post-mortem brain of suicide subjects
Why this work is in the frame
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Bibliographic record
Abstract
The tryptophan hydroxylase isoform-2 gene (TPH2) is located on chromosome 12 and is expressed primarily in brain tissue. While genetic association and mRNA expression studies implicate the tryptophan hydroxylase isoform-1 gene (TPH1) in depression and suicidality, the TPH1 gene is 150-fold less expressed in mouse brain than TPH2. We hypothesized that completed suicide is associated with abnormal TPH2 expression in the brain. TPH2 and beta-actin mRNA levels were measured in post-mortem brain using quantitative real-time PCR. mRNA samples provided by the Stanley Foundation Array Collection were derived from the dorsolateral prefrontal cortex (Brodmann Area 46) of 23 completed suicides and 23 control subjects. There is no difference in the mRNA levels between the suicide group and non-suicide group (p = 0.69). Although greater amounts of TPH2 mRNA were found in the suicide group, this difference was not significant. Further investigation of TPH2 gene expression is needed to clarify the potential role of this gene in the pathophysiology of suicide.
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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 | 0.001 |
| 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 | 0.001 | 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 it