title: [Polymorphism of c-Ha-ras 3'VNTR in hydatidiform mole and its relationship with the development of postmolar tumor].
abstract: OBJECTIVE
  To study the polymorphism of c-Ha-ras 3' variable number of tandem repeat (VNTR) and its relationship with development of postmolar tumor.
  
  
  METHODS
  The cases of hydatidiform mole (HM) were retrospectively analyzed by amplified fragment length polymorphism-polyacrylamide gel electrophoresis. The DNA origin of HM was determined by comparison with the parents' DNA amplified results.
  
  
  RESULTS
  Among the samples from 15 cases, DNA from only paternal origin was found in 2 cases. DNA from both parents was in 13 cases, and of these 13 cases, 2 were found to be had balanced DNA origin, 11 had more DNA form paternal origin than DNA from maternal origin.
  
  
  CONCLUSIONS
  The HM which has DNA from both parents origin and predominantly from paternal origin developed to postmolar tumor more frequently.
authors.affiliation: Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong, 524001 PR China. wangfangkx@163.com
authors.forename: Fang
authors.initials: F
authors.lastname: Wang
authors.forename: Xu
authors.initials: X
authors.lastname: Kang
authors.forename: Bi
authors.initials: B
authors.lastname: Chen
authors.forename: Jiang-ling
authors.initials: JL
authors.lastname: Pang
authors.forename: Ying-yong
authors.initials: YY
authors.lastname: Li
mesh_terms: D024509:3' Flanking Region / Q000235:genetics; D004252:DNA Mutational Analysis / Q000379:methods; D004273:DNA, Neoplasm / Q000235:genetics; D004591:Electrophoresis, Polyacrylamide Gel; D005260:Female; D011905:Genes, ras / Q000235:genetics*; D006801:Humans; D006828:Hydatidiform Mole / Q000235:genetics*; D008297:Male; D018598:Minisatellite Repeats / Q000235:genetics*; D021141:Nucleic Acid Amplification Techniques; D011110:Polymorphism, Genetic; D011247:Pregnancy; D012189:Retrospective Studies; D014594:Uterine Neoplasms / Q000235:genetics*
chemical_list: D004273:DNA, Neoplasm