Table 4. Electrocardiogram of monkeys fed on diets containing GM rice or non-GM rice.
| Time | Group | Heart rate | P-R | Q-T | P | Q | R | S | ST | T |
|---|---|---|---|---|---|---|---|---|---|---|
| bpm | ms | ms | mV | mV | mV | mV | mV | mV | ||
| Pre-dose | Non-GM rice | 268±14 | 68±10 | 145±14 | 0.10±0.04 | 0.07±0.05 | 0.17±0.12 | 0.07±0.08 | 0.02±0.02 | 0.16±0.09 |
| Positive control | 245±16 | 60±0 | 170±20 | 0.13±0.05 | 0.09±0.05 | 0.30±0.15 | 0.03±0.03 | 0.02±0.02. | 0.09±0.03 | |
| 17.5% GM rice | 272±18 | 65±9 | 153±15 | 0.13±0.04 | 0.08±0.06 | 0.34±0.22 | 0.04±0.04 | 0.04±0.03 | 0.14±0.08 | |
| 70% GM rice | 260±14 | 63±12 | 157±12 | 0.10±0.04 | 0.09±0.09 | 0.30±0.17 | 0.05±0.05 | 0.03±0.03 | 0.17±0.07 | |
| Treatment Month 1 | Non-GM rice | 263±17 | 68±15 | 148±18 | 0.10±0.05 | 0.06±0.04 | 0.23±0.16 | 0.07±0.09 | 0.03±0.04 | 0.20±0.08 |
| Positive control | 256±9 | 60±0 | 165±10 | 0.10±0.00 | 0.06±0.03 | 0.30±0.08 | 0.01±0.01 | 0.01±0.03 | 0.10±0.06 | |
| 17.5% GM rice | 272±16 | 65±9 | 150±19 | 0.11±0.04 | 0.11±0.06 | 0.34±0.27 | 0.04±0.10 | 0.09±0.18 | 0.13±0.07 | |
| 70% GM rice | 257±19 | 67±10 | 160±15 | 0.10±0.05 | 0.12±0.09 | 0.36±0.22 | 0.02±0.02 | 0.01±0.01 | 0.14±0.06 | |
| Treatment Month 3 | Non-GM rice | 255±14 | 68±10 | 153±10 | 0.09±0.02 | 0.05±0.03 | 0.22±0.14 | 0.06±0.05 | 0.01±0.02 | 0.17±0.09 |
| Positive control | 240±13 | 70±12 | 155±38 | 0.10±0.00 | 0.09±0.03 | 0.36±0.21 | 0.01±0.00 | 0.03±0.05 | 0.08±0.06 | |
| 17.5% GM rice | 258±23 | 65±9 | 150±21 | 0.11±0.02 | 0.10±0.07 | 0.42±0.28 | 0.03±0.02 | 0.04±0.04 | 0.12±0.08 | |
| 70% GM rice | 251±19 | 73±10 | 160±12 | 0.09±0.04 | 0.09±0.06 | 0.33±0.21 | 0.04±0.04 | 0.02±0.02 | 0.14±0.06 | |
| Treatment Month 6 | Non-GM rice | 252±19 | 70±11 | 150±11 | 0.12±0.04 | 0.05±0.04 | 0.25±0.16 | 0.04±0.05 | 0.04±0.03 | 0.15±0.09 |
| Positive control | 252±13 | 70±12 | 165±10 | 0.08±0.03 | 0.08±0.03 | 0.36±0.13 | 0.01±0.00 | 0.02±0.02 | 0.11±0.05 | |
| 17.5% GM rice | 273±13 | 68±10 | 148±15 | 0.10±0.03 | 0.11±0.10 | 0.44±0.29 | 0.03±0.02 | 0.02±0.02 | 0.09±0.09 | |
| 70% GM rice | 256±17 | 70±10 | 158±13 | 0.10±0.04 | 0.09±0.07 | 0.38±0.20 | 0.03±0.03 | 0.02±0.02 | 0.14±0.05 | |
| Recovery | Non-GM rice | 245 | 70 | 170 | 0.10 | 0.03 | 0.11 | 0.15 | 0.05 | 0.23 |
| Positive control | / | / | / | / | / | / | / | / | / | |
| 17.5% GM rice | 280±17 | 65±10 | 150±12 | 0.11±0.02 | 0.12±0.13 | 0.49±0.35 | 0.04±0.04 | 0.07±0.04 | 0.11±0.05 | |
| 70% GM rice | 268±22 | 65±10 | 160±16 | 0.09±0.03 | 0.08±0.05 | 0.38±0.29 | 0.02±0.02 | 0.01±0.03 | 0.15±0.09 |
Note: Data are presented as the mean±SD. During the quarantine period and the study period, there were 8, 4, 8 and 12 animals in the non-GM rice, positive control, 17.5% GM rice and 70% GM rice groups, respectively, whereas there were 2, 0, 4 and 4 animals in the four respective group during the recovery period.