title: Pro198Leu polymorphism in the oxidative stress gene, glutathione peroxidase-1, is associated with a gender-specific risk for panic disorder.
abstract: OBJECTIVE
  Panic disorder (PD) is an anxiety disorder characterized by sudden attacks of intense fear. Biochemical studies suggest that oxidative stress (OS) index is significantly higher in PD, and OS genes may participate in development of anxiety-like behavioral phenotypes. We aimed to investigate role of polymorphisms in OS gene, glutathione peroxidase-1 (GPX1), and DNA repair enzyme gene, 8-oxoguanine glycosylase-1 (OGG1), in PD patients.
  
  
  METHODS
  GPX1 Pro198Leu (rs1050450) and OGG1 Ser326Cys (rs1052133) polymorphisms of 127 patients with PD and 151 disease-free controls were analyzed with real-time polymerase chain reaction. Severity of PD symptoms was assessed by Panic and Agoraphobia Scale (PAS).
  
  
  RESULTS
  No significant relationship was found in genotype distributions of OGG1 Ser326Cys and GPX1 Pro198Leu polymorphisms between PD and control groups (p > 0.05). There was no significant relationship between OGG1 or GPX1 polymorphisms, and age of onset, agoraphobia, or PAS scores in PD group (p > 0.05). However, in GPX1 Pro198Leu polymorphism, C allele (Pro) was found to be more frequent in female subgroup of PD patients compared with that in males (p = 0.027).
  
  
  CONCLUSIONS
  GPX1 Pro198Leu and OGG1 Ser326Cys polymorphisms were not associated with PD risk in Turkish patients. However, a gender-specific effect of GPX1 Pro198Leu C allele may be associated with PD development.
authors: a Department of Medical Biology , Cerrahpasa Medical Faculty, Istanbul University , Istanbul , Turkey.
authors: Mujgan
authors: M
authors: Cengiz
authors: Burcu
authors: B
authors: Bayoglu
authors: Nurnisa Oya
authors: NO
authors: Alansal
authors: Salih
authors: S
authors: Cengiz
authors: Ahmet
authors: A
authors: Dirican
authors: Nese
authors: N
authors: Kocabasoglu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D045647:DNA Glycosylases / Q000235:genetics*; D005260:Female; D005979:Glutathione Peroxidase / Q000235:genetics*; D006801:Humans; D008297:Male; D008875:Middle Aged; D018384:Oxidative Stress / Q000235:genetics*; D016584:Panic Disorder / Q000235:genetics*; D011110:Polymorphism, Genetic; D060888:Real-Time Polymerase Chain Reaction; D012307:Risk Factors; D012737:Sex Factors; D055815:Young Adult; D000094765:Glutathione Peroxidase GPX1
chemical_list: D005979:Glutathione Peroxidase; D045647:DNA Glycosylases; C479058:oxoguanine glycosylase 1, human; D000094765:Glutathione Peroxidase GPX1; C000722067:GPX1 protein, human
keywords: DNA repair; GPX1 gene; OGG1 gene; Panic disorder; oxidative stress