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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Reprod Toxicol. 2011 Oct 7;32(4):395–406. doi: 10.1016/j.reprotox.2011.09.010

Table 4.

Numbers of cells injected and recovery of spermatogenesis in the recipient testes. The percentages of tubules are given for recovery of endogenous spermatogenesis (GFP-negative), donor colonies (GFP+), and donor colonies normalized to the average number of cells injected are shown. Values expressed as Mean ± SEM (N=10 testes for young, CY and cryptorchid; N=7 testes for adult).

Source of donor cells Numbers of viable cells injected Tubules showing endogenous recovery (%) Tubules showing donor (GFP+) recovery (%) Donor recovery normalized to average number of cells injected
Young 0.19 ± 0.01 ×106 3.4 ± 0.8 13.8 ± 3.5 a 15.0 ± 3.6 a
Adult 0.16 ± 0.02 ×106 4.6 ± 0.8 0.5 ± 0.2 b 0.5 ± 0.3 b
Cryptorchid 0.15 ± 0.01 ×106 2.9 ± 0.6 6.7 ± 1.8 a 7.5 ± 2.0 a
Cyclophosphamide 0.19 ± 0.01 ×106 4.7 ± 1.1 2.4 ± 0.8 b 2.4 ± 0.8 b

Different letters indicate statistically significant differences among all groups (p<0.05).