Association study between the corticotropin-releasing hormone receptor 2 gene and suicidality in bipolar disorder
Why this work is in the frame
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Bibliographic record
Abstract
Family, adoption and twin studies show that genetics influences suicidal behavior, but does not indicate specific susceptibility variants. Stress response is thought to be mediated by the corticotrophin-releasing hormone (CRH), which is known to be a regulator of the hypothalamic-pituitary-adrenal pathway (HPA). Alterations in HPA system have been related to impulsivity, aggression and suicidal behaviour, that are common features in Bipolar Disorder (BD). CRH is a hypothalamic factor that stimulates the pituitary gland. Two CRH receptors are known, CRHR1 and CRHR2. To search for markers conferring genetic susceptibility to suicide, we typed three polymorphisms of the CRHR2 gene, CRHR2(CA), CRHR2(GT), and CRHR2(GAT), in 312 families where at least one subject had DSM-IV bipolar disorder. Family based association analyses in the suicide attempters using FBAT yielded no difference in the distribution of the alleles for all three markers. HBAT analysis for quantitative measures on suicide-related traits showed association between haplotype 5-2-3 and higher severity. The current results show that haplotype variation at the CRHR2 locus is associated with suicidal behaviour. This is to our knowledge the first investigation on suicidal behavior and genetic variation at the CRHR2 locus, an important regulator of the HPA axis.
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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 | 0.000 |
| 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 it