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Shimizu, E. et al.

Shimizu, Hashimoto, Koizumi, Kobayashi, Itoh, Mitsumori, Ohgake, Okamura, Koike, Matsuzawa, Zhang, Kumakiri, Nakazato, Komatsu, Iyo,

No association of the brain-derived neurotrophic factor (BDNF) gene polymorphisms with panic disorder.

Several lines of evidence suggest that genetic factors might contribute to susceptibility to panic disorder. Our previous studies show that the brain-derived neurotrophic factor (BDNF) may play a role in the pathophysiology of major depressive disorders and eating disorders. Assuming that BDNF may be implicated in the putative common pathophysiology of depression and anxiety, we analyzed the association of two BDNF gene single nucleotide polymorphisms (SNPs), 132C > T (formerly named C270T) in the noncoding region of exon V and 196G > A (val66met) in the coding region of exon XIIIA, with panic disorder. In this study, 109 patients with panic disorder diagnosed according to the DSM-IV criteria, and 178 control subjects were recruited. There were no significant differences in the frequency of the genotype or allele in these two SNPs between patients and controls [132C > T in exon V: genotype, p = 1.0, allele, p = 0.59; 196G > A (val66met) in exon XIIIA: genotype, p = 0.77, allele, p = 0.78]. Furthermore, no significant associations of agoraphobia with the two SNPs were detected. This study suggests that the BDNF gene polymorphisms are not associated with panic disorder in our Japanese population.[1]

References

No association of the brain-derived neurotrophic factor (BDNF) gene polymorphisms with panic disorder. Shimizu, E., Hashimoto, K., Koizumi, H., Kobayashi, K., Itoh, K., Mitsumori, M., Ohgake, S., Okamura, N., Koike, K., Matsuzawa, D., Zhang, L., Kumakiri, C., Nakazato, M., Komatsu, N., Iyo, M. Prog. Neuropsychopharmacol. Biol. Psychiatry (2005) [Pubmed]

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