• immunoreactive
  • Effect of early oral calcium supplementation on serum calcium and immunoreactive calcitonin concentration in preterm infants. (bmj.com)
  • Oral calcium supplements (80 mg/kg per 24 h) were given to 23 preterm infants, and the course of serum calcium, magnesium, immunoreactive calcitonin, and gastrin was compared with a control group of 23 matched infants. (bmj.com)
  • The postnatal rise of serum immunoreactive calcitonin concentrations in the control group (from 171 +/- 135 to 493 +/- 273 pg/ml at 12-48 hours of age) was not found in the supplemented group. (bmj.com)
  • There was a negative correlation between serum calcium and immunoreactive calcitonin levels in the control group, but not in the supplemented group. (bmj.com)
  • There was no correlation between serum immunoreactive calcitonin and gastrin concentrations. (bmj.com)
  • These data show that oral calcium supplementation can prevent early neonatal hypocalcaemia, and suggest that this effect is achieved at least in part through a reduction of the postnatal rise of serum immunoreactive calcitonin. (bmj.com)