title: [Establishment of Method for Detecting Red Blood Cell Osmotic Fragility by Flow Cytometry].
abstract: OBJECTIVE
  To establish a new method for detection of red blood cell osmotic fragility by using flow cytometry.
  
  
  METHODS
  The hypotension salt solution of different concentrations (0.70 ml normal saline+0.3 ml deionized water, 0.60 ml normal saline+0.40 ml deionized water and 0.55 ml normal saline+0.45 ml deionized water) were prepared with normal saline and deionized water, in which the red blood cells were suspended, and the residual red blood cells were detected by flow cytometer.
  
  
  RESULTS
  There was no significant difference in percentage of residual red blood cells between different time points detected by flow cytometer in 3 different hypotonic salt solutions. The percentage of residual red blood cells in B+C+D+E+F+G detected time region was different among 3 NaCl dilution groups. The percentage of residual red blood cells in normal control was lower than that in hemoglobinopathy group. The percentage of residual red blood cells in hereditary spherocytosis (HS) group was obviously lower than that in hemoglobinopathy and normal control groups. The comparison of 3 different dilution concentrations found that the second concentration (0.60 ml normal saline+0.40 ml deionized water) is more suitable to screen HS by FC500 flow cytometer.
  
  
  CONCLUSIONS
  The detection of red cell osmotic fragility by using flow cytometry is a simple, rapid, objective and economic way that can be an effective screening method for diagnose the HS.
authors.affiliation: Department of Laboratorial Examination, The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan Province, China.
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Zhu
authors.affiliation: Department of Neurology, The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan Province, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Meng
authors.affiliation: Department of Laboratorial Examination, The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan Province, China.
authors.forename: Hong-Mei
authors.initials: HM
authors.lastname: Ouyan
authors.affiliation: Department of Laboratorial Examination, The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan Province, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Dong
authors.affiliation: Department of Laboratorial Examination, The Third People's Hospital of Yunnan Provive, Kunming 650011, Yunnan Province, China.
authors.forename: Qiong-Yue
authors.initials: QY
authors.lastname: Zhang
authors.affiliation: Department of Laboratorial Examination, Yunnan Tumor Hospital, Kunming 650018, Yunnan Province, China.
authors.forename: You-Quan
authors.initials: YQ
authors.lastname: Zhou
authors.affiliation: Department of Laboratorial Examination, The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan Province, China. E-mail: 1419034659@qq.com.
authors.forename: Zhu-Xian
authors.initials: ZX
authors.lastname: Ping
mesh_terms: D004912:Erythrocytes / Q000166:cytology*; D005434:Flow Cytometry; D006801:Humans; D009996:Osmotic Fragility; D013103:Spherocytosis, Hereditary / Q000503:physiopathology