Study Report

Reference
| Citation | Ribeiro L, 2007 PubMed |
| Full Info | Ribeiro L, Busnello JV, Cantor RM, Whelan F, Whittaker P, Deloukas P et al. The brain-derived neurotrophic factor rs6265 (Val66Met) polymorphism and depression in Mexican-Americans. Neuroreport 2007; 18(12): 1291-1293.
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Study
| Hypothesis or Background |
The hypothesis that brain-derived neurotrophic factor (BDNF) is involved in the pathogenesis of major depression is supported by several research findings; however, genetic studies assessing the relationship between BDNF and psychiatric disorders have produced conflicting results.
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| Sample Information | 284 depressed participants and 331 controls |
| Method Detail | genotyping |
| Method Keywords | genotyping |
| Result | We examined the effect of a BDNF polymorphism on depression susceptibility in Mexican-Americans. The single nucleotide polymorphism (Val66Met), which has been shown to have functional and behavioral effects, was genotyped in 284 depressed participants and 331 controls, showing association with depression (P=0.005). Individuals homozygous for the major allele (GG) had an increased chance of being depressed (OR=1.7 95% CI 1.17-2.47). |
| Conclusions | Our findings support the association of BDNF single nucleotide polymorphism rs6265 and depression, suggesting that this polymorphism may increase susceptibility to major depression in Mexican-Americans. |

Relationships reported by
Ribeiro L, 2007
| Component A Approved Name (Name in Paper) |
Component A Type |
Component B Approved Name (Name in Paper) |
Component B Type |
Statistical Result |
Relationship Description |
Result Category (Positive/Negative)) |
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MDD
|
syndrome |
rs6265 (rs6265) |
SNP |
P=0.005 |
The single nucleotide polymorphism (Val66Met), which has been shown to have functional and behavioral effects, was genotyped in 284 depressed participants and 331 controls, showing association with depression (P=0.005) |
Positive
|