title: [DNA Extraction of Cast-off Cells of Fingerprints from 502 Glue Fumigated Contact Samples].
abstract: OBJECTIVE
  To establish a method of fingerprint position, sample transfer and fingerprint DNA extraction in contact samples.
  
  
  METHODS
  Sixty-six cases were visualized by 502 glue fingerprint fumigation. Two methods, ordinary wipe and acetone wipe, were used to transfer cast-off cells of fingerprints from testing samples, respectively. DNA was extracted and purified by ultramicro magnetic bead kit. The data was resolved on genetic analysis after amplification.
  
  
  RESULTS
  In 33 samples, 30 samples got better STR analysis by acetone wipe method. The peak range was 1,000-4,000 RFU and peak shapes were equable. It was hard to get ideal STR typing by ordinary wipe method.
  
  
  CONCLUSIONS
  The samples are visualized by 502 glue fingerprint fumigation and the case-off cells are transferred by acetone wipe method. The method shows better STR analysis result, which might be a better method for forensic science practice.
authors.forename: Xian-wen
authors.initials: XW
authors.lastname: Wang
authors.forename: Xue-feng
authors.initials: XF
authors.lastname: Leng
authors.forename: Shou-yu
authors.initials: SY
authors.lastname: Wang
mesh_terms: D000269:Adhesives; D004247:DNA / Q000302:isolation & purification*; D016172:DNA Fingerprinting / Q000379:methods*; D005554:Forensic Medicine; D005651:Fumigation / Q000379:methods*; D006801:Humans
chemical_list: D000269:Adhesives; D004247:DNA