title: Association of galanin and major depressive disorder in the Chinese Han population.
abstract: OBJECTIVE
  This study aimed to investigate the association of galanin (GAL) gene and the development of depression in the Chinese Han population.
  
  
  METHODS
  A total of 700 patients with depression who met the diagnostic criteria of Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) and 673 healthy controls were used in this study. Ligase detection reactions were performed on 10 selected single nucleotide polymorphism (SNP) sites in the GAL gene. A series of statistical methods were carried out to investigate the correlation between the GAL gene SNP and the patient susceptibility to depression.
  
  
  RESULTS
  The SNPs of rs694066 in the GAL gene showed a positive correlation with MDD. Compared with the healthy controls, lower frequency of G/G genotype and higher frequency of A/G genotype were observed in rs694066 in MDD patients, a lower frequency of G-allele and higher frequency of A-allele were observed in rs694066. These correlations were more pronounced in the 376 female patients and 360 female control subjects than in the 324 male patients and 313 healthy male subjects.
  
  
  CONCLUSIONS
  This study investigated the relationship between the GAL gene SNP and the susceptibility to depression in the Chinese Han population. The findings clearly indicate that the GAL gene polymorphism is closely correlated to the incidence of depression in the Chinese Han female patients.
authors.affiliation: Tianjin Anding Hospital, Tianjin, China.
authors.forename: Yong-Jun
authors.initials: YJ
authors.lastname: Wang
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.forename: Yu-Tao
authors.initials: YT
authors.lastname: Yang
authors.forename: Chang-Le
authors.initials: CL
authors.lastname: Tie
authors.forename: Feng
authors.initials: F
authors.lastname: Li
authors.forename: Zhi-Qing David
authors.initials: ZQ
authors.lastname: Xu
authors.forename: Chuan-Yue
authors.initials: CY
authors.lastname: Wang
mesh_terms: D000328:Adult; D000483:Alleles; D044466:Asian People; D016022:Case-Control Studies; D003865:Major Depressive Disorder / Q000175:diagnosis / Q000208:ethnology / Q000235:genetics*; D005260:Female; D019004:Galanin / Q000235:genetics*; D015870:Gene Expression; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D006239:Haplotypes; D006801:Humans; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D012737:Sex Factors
chemical_list: D019004:Galanin