title: The Asn680Ser polymorphism of the follicle stimulating hormone receptor gene and ovarian cancer risk: a meta-analysis.
abstract: OBJECTIVE
  The purpose of this study was to conduct a meta-analysis to assess the association between FSHR Asn680Ser polymorphism and ovarian cancer susceptibility.
  
  
  METHODS
  A literature search was conducted in PubMed, Embase and the China National Knowledge Infrastructure (CNKI) for all relevant studies published up to September 2013. The pooled odds ratios (ORs) with the corresponding 95 % confidence intervals (95 % CIs) were calculated to evaluate the association.
  
  
  RESULTS
  Four case-control studies including 474 ovarian cancer cases and 659 controls met the inclusion criteria. The pooled analyses showed that FSHR Asn680Ser polymorphism was associated with the risk of ovarian cancer (Ser vs Asn: OR=1.295, 95 % CI 1.057-1.498, P=0.01; Ser/Ser + Asn/Ser vs Asn/Asn: OR=1.611, 95 % CI 1.027-2.528, P=0.038). Subgroup analyses by ethnicity (Caucasian and Asian) further revealed significant associations among Asians (Ser vs Asn: OR=1.386, 95 % CI 1.066-1.802, P=0.015; Ser/Ser + Asn/Ser vs Asn/Asn: OR=1.893, 95 % CI 1.329-2.689, P=0.000) but not Caucasians. There was no obvious risk of publication bias.
  
  
  CONCLUSIONS
  The meta-analysis suggests that FSHR Asn680Ser polymorphism may be a risk factor for ovarian cancer in Asians. Due to the limited quantity of the included studies, further studies are needed to validate the above conclusions.
authors.forename: Xue
authors.initials: X
authors.lastname: Qin
authors.forename: Liping
authors.initials: L
authors.lastname: Ma
authors.forename: Shi
authors.initials: S
authors.lastname: Yang
authors.forename: Jianyang
authors.initials: J
authors.lastname: Zhao
authors.forename: Siyuan
authors.initials: S
authors.lastname: Chen
authors.forename: Yantong
authors.initials: Y
authors.lastname: Xie
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Taijie
authors.initials: T
authors.lastname: Li
authors.forename: Yu
authors.initials: Y
authors.lastname: He
authors.forename: Qiliu
authors.initials: Q
authors.lastname: Peng
authors.forename: Yan
authors.initials: Y
authors.lastname: Deng
authors.forename: Shan
authors.initials: S
authors.lastname: Li
authors.forename: Aiping
authors.initials: A
authors.lastname: Qin
mesh_terms: D044466:Asian People; D016022:Case-Control Studies; D002681:China; D005260:Female; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D010051:Ovarian Neoplasms / Q000235:genetics*; D011962:Receptors, FSH / Q000235:genetics*; D044465:White People
chemical_list: D011962:Receptors, FSH