The BDNF Val66Met gene polymorphism is associated with increased alexithymic and anticipatory anxiety in patients with panic disorder
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Bibliographic record
Abstract
A large body of evidence indicates that patients with panic disorder(PD) report more obvious alexithymia, and previous studies suggest genetic factors may be play an important role in alexithymia. This study aims to examine the association between the Brain-derived neurotrophic factor (BDNF) Val66Met polymorphism and alexithymia, and then to evaluate the association of the BDNFVal66Met polymorphism with PD risk. 223 patients with PD and 218 healthy controls were enrolled in the study. The Toronto Alexithymia Scale (TAS-20), and Panic Disorder Severity Scale (PDSS) were administered to all subjects. And genotyping of the BDNF Val 66Met polymorphism was evaluated. Our results showed that both PD patients and normal controls with the BDNF Met/Met genotype had significantly higher total and difficulty describing feelings(DDF) subdimension scores on the TAS-20 than those with the Val/Val genotype.The patients with the BDNF Met/Met genotype were more severity of anticipatory anxiety than patients with Val/Val genotype.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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