title: [Freezing effect on sperm DNA].
abstract: OBJECTIVE
  To assess the effect of freezing on the sperm DNA.
  
  
  METHODS
  To assess the sperm DNA preserved at -80 degrees C by using the single cell gel electrophoresis (SCGE).
  
  
  RESULTS
  There was no statistical difference on the time factor by analysis of variance (ANOVA).
  
  
  CONCLUSIONS
  Integrity of sperm DNA could not be devastated in frozen states.
authors.affiliation: Department of Genetic Research, Sun Yat-San University of Medical Science, Guangzhou, Guangdong 510089, China. songbo58@163.com
authors.forename: Bo
authors.initials: B
authors.lastname: Song
authors.forename: Lü-Kang
authors.initials: LK
authors.lastname: Zheng
authors.forename: Li-Xia
authors.initials: LX
authors.lastname: Deng
authors.forename: Qiao
authors.initials: Q
authors.lastname: Zhang
mesh_terms: D000328:Adult; D015925:Cryopreservation; D004247:DNA / Q000032:analysis*; D004587:Electrophoresis, Agar Gel; D005615:Freezing; D006801:Humans; D008297:Male; D012662:Semen Preservation; D013094:Spermatozoa / Q000737:chemistry*
chemical_list: D004247:DNA