[Clinical manifestation and cytogenetic analysis of 607 patients with Turner syndrome].

Objective: To explore the correlation between cytogenetic findings and clinical manifestations of Turner syndrome.

Methods: 607 cases of cytogenetically diagnosed Turner syndrome, including those with a major manifestation of Turner syndrome, were analyzed with conventional G-banding. Correlation between the karyotypes and clinical features were analyzed.

[Isolation and biological characterization of human amniotic fluid-derived stem cells].

Objective: To establish in vitro culture procedure for human amniotic fluid-derived CD117 positive stem cells, and to identify the characteristics of CD117 positive stem cells.

Methods: 86 amniotic fluid samples (10 mL of each) were obtained by second-trimester amniocentesis. Isolation of amniotic fluid-derived stem cells expressing CD117 antigen was performed via magnetic cell sorting using the CD117 MicroBead Kit.