Spermatogenesis, No. Seminiferous Tubules |
| |
6 Weeks (n = 5)
|
15 Weeks (n = 8)
|
| Stage |
Control |
PCB126 |
PCB169 |
Control |
PCB126 |
PCB169 |
|
| I |
73.7 ± 4.4 |
90.0 ± 11.1 |
91.3 ± 6.8 |
93.7 ± 2.7 |
94.1 ± 3.7 |
84.4 ± 2.7** |
| II/III |
54.7 ± 4.3 |
45.3 ± 2.0 |
37.3 ± 3.3* |
41.1 ± 1.6 |
42.9 ± 3.0 |
47.7 ± 2.6* |
| IV |
28.7 ± 1.5 |
30.3 ± 7.0 |
33.0 ± 2.8 |
19.1 ± 1.1 |
19.6 ± 1.5 |
19.0 ± 1.7 |
| V |
44.7 ± 5.8 |
44.3 ± 5.8 |
54.8 ± 2.4 |
44.7 ± 2.6 |
41.0 ± 2.5 |
36.8 ± 1.7* |
| VI |
25.0 ± 1.2 |
42.0 ± 5.5* |
48.8 ± 2.5* |
18.3 ± 1.5 |
22.0 ± 1.3 |
15.6 ± 1.6* |
| VII |
96.7 ± 7.1 |
89.3 ± 12.4 |
72.0 ± 1.9* |
99.2 ± 3.8 |
103.3 ± 2.4 |
112.6 ± 1.9** |
| VIII |
33.0 ± 2.6 |
30.0 ± 3.5 |
37.5 ± 4.3 |
41.1 ± 1.8 |
38.7 ± 1.4 |
40.4 ± 1.6 |
| IX |
22.7 ± 1.7 |
17.3 ± 1.9 |
13.8 ± 1.4* |
16.2 ± 1.0 |
13.8 ± 1.2 |
16.2 ± 1.6 |
| X |
11.7 ± 3.2 |
12.7 ± 2.6 |
11.3 ± 2.6 |
9.4 ± 0.8 |
7.2 ± 0.8 |
8.3 ± 0.8 |
| XI |
15.7 ± 1.8 |
13.7 ± 3.2 |
13.3 ± 1.9 |
10.8 ± 0.9 |
14.1 ± 1.0* |
14.9 ± 0.9* |
| XII |
45.3 ± 5.0 |
43.3 ± 2.3 |
45.3 ± 3.7 |
55.9 ± 2.4 |
46.9 ± 2.3** |
58.1 ± 2.7 |
| XIII |
25.3 ± 3.3 |
15.3 ± 0.3* |
16.0 ± 4.2 |
30.9 ± 1.7 |
35.9 ± 1.8* |
27.1 ± 2.7 |
| XIV |
23.0 ± 3.1 |
26.3 ± 3.7 |
26.0 ± 3.0 |
19.5 ± 1.1 |
20.7 ± 1.2 |
19.1 ± 1.1 |
|
| Significantly different from * control values (P
< .05) or ** the other PCB-administered group (P <
0). |
 PCB126 indicates 3,3',4,4', 5-pentachlorobiphenyl; PCB169,
3,3', 4,4', 5,5'-hexachlorobiphenyl. |
|
