Association of the putative susceptibility gene, transient receptor potential protein melastatin type 2, with bipolar disorder
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Bibliographic record
Abstract
Disturbed intracellular calcium (Ca(2+)) homeostasis has been implicated in bipolar disorder (BD). Reduced mRNA levels of the transient receptor potential Ca(2+) permeable channel melastatin type 2, TRPM2, in B lymphoblast cell lines (BLCL) from bipolar I disorder (BD-I) patients showing elevated basal intracellular Ca(2+) ([Ca(2+)](B)), an index of altered intracellular Ca(2+) homeostasis, along with its location within a putative BD susceptibility locus (21q22.3), implicates the involvement of this gene in the Ca(2+) abnormalities and the genetic diathesis to BD. We tested this hypothesis by examining the association of selected single nucleotide polymorphisms (SNPs) and their haplotypes, spanning the TRPM2 gene, with BD and BLCL [Ca(2+)](B), in a case control design. The 5' TaqMan SNP assay was used to detect selected SNPs. BLCL [Ca(2+)](B) was determined by ratiometric fluorometry. SNP rs1618355 in intron 18 was significantly associated with BD as a whole (P < 7.0 x 10(-5); odds ratio (OR) = 2.60), and when stratified into BD-I (P < 7.0 x 10(-5), OR = 2.48) and BD-II (P = 7.0 x 10(-5), OR = 2.88) subgroups. In addition, the alleles of the individual SNPs forming a seven marker at-risk haplotype were in excess in BD (12.0% in BD vs. 0.9% in controls; P = 2.3 x 10(-12)). A weak relationship was also detected between BLCL [Ca(2+)](B) and TRPM2 SNP rs1612472 in intron 19. These findings suggest genetic variants of the TRPM2 gene increase risk for BD and support the notion that TRPM2 may be involved in the pathophysiology of BD.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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