Melatonin excretion in normal males and females: increase during puberty.

@article{Penny1982MelatoninEI,
  title={Melatonin excretion in normal males and females: increase during puberty.},
  author={Robert Penny},
  journal={Metabolism: clinical and experimental},
  year={1982},
  volume={31 8},
  pages={816-23}
}
  • Robert Penny
  • Published 1982 in Metabolism: clinical and experimental
Melatonin in chloroform extracts of timed overnight urine collections was measured by radioimmunoassay. Melatonin excretion was determined in 88 boys and 82 girls 9-16 yr of age, in 16 adult males, and throughout the menstrual cycle of one adult female. By succeeding age groups (9-10.9, 11-12.9, 13-14.9, and 15-16.9 yr) boys showed a progressive increase in mean +/- SD melatonin excretion from 3.0 +/- 1.3 ng/hr for the 9-10.9 yr age group to 9.8 +/- 2.8 ng/hr for the 15-16.9 yr age group. The… CONTINUE READING