Table 1.
Induced tissue analysis
| Culture day | 4-day culture | 7-day culture | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Duration of preculture, hr | 0 | 1 | 2 | 3 | 4 | 0 | 1 | 2 | 3 | 4 |
| Numbers of cases | 11 | 10 | 11 | 12 | 11 | 24 | 23 | 22 | 21 | 21 |
| Epidermis | 10 (91) | 10 (100) | 6 (55) | 11 (92) | 10 (91) | 24 (100) | 23 (100) | 17 (77) | 14 (67) | 18 (86) |
| Cement gland | 1 (9) | 8 (80) | 11 (100) | 12 (100) | 11 (100) | 4 (17) | 13 (57) | 21 (96) | 19 (91) | 19 (91) |
| Neural tissue | 11 (100) | 9 (90) | 11 (100) | 12 (100) | 11 (100) | 24 (100) | 23 (100) | 22 (100) | 20 (95) | 19 (91) |
| Eye | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (9) | 0 (0) | 3 (13) | 3 (14) | 5 (24) | 1 (4.7) |
| Notochord | 2 (18) | 2 (20) | 5 (46) | 7 (58) | 9 (82) | 4 (17) | 4 (17) | 11 (50) | 16 (76) | 17 (81) |
| Muscle | 10 (91) | 9 (90) | 0 (0) | 7 (58) | 8 (73) | 24 (100) | 22 (96) | 21 (96) | 19 (91) | 10 (48) |
| Pronephros | 2 (18) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 3 (25) | 1 (4) | 0 (0) | 0 (0) | 0 (0) |
| Mesenchyme | 11 (100) | 9 (90) | 3 (27) | 3 (25) | 4 (36) | 23 (96) | 23 (100) | 16 (73) | 13 (62) | 14 (67) |
| Endodermal cells | 2 (18) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 5 (21) | 4 (17) | 0 (0) | 0 (0) | 0 (0) |
| Cartilage | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 2 (8) | 11 (48) | 5 (23) | 3 (14) | 0 (0) |
Percentages appear in parentheses.