Objectives: Panic disorder(PD) is a common psychiatric disorders with a complex etiology and several studies have suggested a genetic component to PD. Brain-derived neurotrophic factor (BDNF) is the most abundant of the neurotrophins in the brain, and...
Objectives: Panic disorder(PD) is a common psychiatric disorders with a complex etiology and several studies have suggested a genetic component to PD. Brain-derived neurotrophic factor (BDNF) is the most abundant of the neurotrophins in the brain, and is recognized as playing an important role in the survival, differentiation and growth of neurons. Several lines of research have suggested possible associations between the BDNF gene and PD. In this study, we investigated the BDNF 196G/A (rs6265), 11757G/C (rs16917204), and 270C/T (rs56164415) SNPs for association with PD. We also identified the genetic sequence associations with PD via haplotype analysis.
Methods: The participants in this study were 136 PD patients and 263 healthy controls. Male and female subjects were analyzed separately. The genotype and allele frequencies of the PD patients and controls were analyzed using χ2 statistics. Frequencies and haplotype reconstructions were calculated using the SNP analyzer 2.0.
Results: We found no significant statistical differences in the genotype distributions or allele frequencies of the three tested polymorphisms between the PD and control groups. In addition, no differences were found between PD patients and controls in either the male or female subgroups. Furthermore, no significant association was demonstrated between the genotype distributions and PD with or without agoraphobia. However, we found that, the frequency of the GC haplotype was significantly higher in PD patients than in the controls.
Conclusions: Our result is meaningful in that this is the first study to identify associations between two BDNF SNPs and PD in the Korean population by investigating the related haplotypes. Further studies are needed to replicate the associations that we observed.
Key words: Panic disorder, Brain-derived neurotrophic factor (BDNF), Polymorphism