In neonates, PTH is essential for the regulation of calcium levels, which are critical for various physiological processes including bone development, muscle function, and neural activity. Newborns are particularly vulnerable to fluctuations in calcium levels due to their developing systems, making the role of PTH even more vital. In the early days of life, the neonatal parathyroid glands start to function independently from the mother’s PTH, which is crucial for the neonate's adaptation to extrauterine life.
