Figure 5From: Isolation and characterization of human spermatogonial stem cellsStatistical analysis of MTT values (72 h vs. 24 h, 48 h and 96 h, P < 0.01) was performed. The A is absorption value at a wavelength of 570 nm. Human SSCs in vitro has a value-added short period, but then gradually reduced the number of cells. The results shown are from three trials.Back to article page