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Concentration-dependent effects of ET-1 on facilitation of Ca2+ release and inhibition of Ca2+ influx in identified somatotrophs from mixed populations of anterior pituitary cells
| ET-1 (in nm) | Spontaneously active cell | Quiescent cells | |||||
|---|---|---|---|---|---|---|---|
| Mobilization and influx (%) | Influx only (%) | No effect (%) | n | Mobilization (%) | No effect (%) | n | |
| 100 | 75 | 20 | 5 | 147 | 88 | 12 | 151 |
| 10 | 43 | 38 | 19 | 74 | 58 | 42 | 59 |
| 1 | 10 | 70 | 20 | 20 | 42 | 58 | 12 |
