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- W2735591798 abstract "OBJECTIVE A number of observations have suggested that brain-derived neurotrophic factor ( BDNF ) plays a role in migraine pathophysiology. This study investigates whether variants in the BDNF gene are associated with migraine in an Australian case-control population. BACKGROUND BDNF has an important role in neural growth, development, and survival in the central nervous system and is an important modulator of central and peripheral pain responses. Variants in BDNF, in particular the functional Val66Met polymorphism (rs6265), have been found to be associated with a number of psychiatric disorders, cognitive function, and obesity. As BDNF has been found to be differentially expressed in a number of aspects related to migraine, we tested for association between single nucleotide polymorphisms ( SNPs ) in BDNF and migraine. METHODS Five SNPs in the BDNF locus (rs1519480, rs6265, rs712507, rs2049046, and rs12273363) were genotyped initially in a cohort of 277 migraine cases, including 172 diagnosed with migraine with aura (MA) and 105 with migraine without aura (MO), and 277 age- and sex-matched controls. Three of these SNPs (rs6265, rs2049046, and rs12273363) were subsequently genotyped in a second cohort of 580 migraineurs, including 473 diagnosed with MA and 105 with MO, and 580 matched controls. RESULTS BDNF SNPs rs1519480, rs6265, rs712507, and rs12273363 were not significantly associated with migraine. However, rs2049046 showed a significant association with migraine, and in particular, MA in the first cohort. In the second cohort, although an increase in the rs2049046 T-allele frequency was observed in migraine cases, and in both MA and MO subgroups, it was not significantly different from controls. Analysis of data combined from both cohorts for rs2049046 showed significant differences in the genotypic and allelic distributions for this marker in both migraine and the MA subgroup. CONCLUSION This study confirmed previous studies that the functional BDNF SNP rs6265 (Val66Met) is not associated with migraine. However, we found that rs2049046, which resides at the 5' end of one the BDNF transcripts, may be associated with migraine, suggesting that further investigations of this SNP may be warranted." @default.
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- W2735591798 date "2014-01-01" @default.
- W2735591798 modified "2023-09-26" @default.
- W2735591798 title "Investigation of brain-derived neurotrophic factor (BDNF) gene variants in migraine" @default.
- W2735591798 hasPublicationYear "2014" @default.
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