Table 1. Comparison of PPP1CC2 levels, testis weight, sperm number and morphology between transgenic rescue lines and control animals.
Transgenic lines | Normalized PPP1CC2 levels compared to Ppp1cc +/− level | Mean testis weight± SEM (in mg) | Mean Sperm number± SEM×107/ml | Sperm Morphology | ||
Total number of sperm counted | Normal (%)± SEM | Defective (%)± SEM | ||||
Ppp1cc +/− | n = 2, 1c | n = 10; 114.4±1.9c | n = 6; 3.9±0.3b | n = 1; 368 | 95 | 5c |
Ppp1cc −/− | no expression | n = 6; 68.4±5.4a | – | – | – | – |
eTg-F10 | n = 2; 0.125a | n = 3; 110.5±1.9b,c | n = 3; 2.1±0.8a | n = 2; 323 | 32±2.8 | 68±2.8a,b |
pTg-M3 | n = 2; 0.125a | n = 2; 79.9±2.9a,b | n = 2; 1.4±0.05a | n = 2; 981 | 47±1.2 | 53±1.2a,b |
eTg-M7 | n = 2; 0.25a,b | n = 8; 107.4±4.6b,c | n = 5; 1.7±0. 9a | n = 2; 566 | 24±9.9 | 76±9.9a |
eTg-F1 | n = 5; 0.5a,b,c | n = 9; 102.7±2.9a,b | n = 5; 2.6±0.5a,b | n = 3; 1194 | 75±0.2 | 25±0.2a,b,c |
pTg-M26 | n = 3; 0.75b,c | n = 5; 108.2±4.2b,c | n = 4; 3.7±0.3a,b | n = 2; 986 | 88±2.3 | 12+2.3b,c |
pTg-M30 | n = 3; 1c | n = 4; 108.2±0.5b,c | n = 3; 3.7±0.5a,b | n = 2; 431 | 94±1.1 | 6±1.1c |
The Kruskal-Wallis non-parametric one-way ANOVA by rank was performed and results were analyzed post-hoc by Dunn’s procedure for performing two-tailed multiple pair wise comparisons. Differences were considered significant if p<0.05 at a confidence interval of 95%.
a, b, c… denote significantly different groups.
SEM denotes Standard Error of the Mean.
n denotes number of samples/group.