Rickets With Alopecia: An Inborn Error of Vitamin D Metabolism
May 1979
in “
The journal of pediatrics/The Journal of pediatrics
”
Studysummary This report describes two sisters with rickets and alopecia unresponsive to high doses of vitamin D2, where oral phosphorus supplements led to significant clinical improvement.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
The paper described a case of rickets with alopecia in two sisters, which was identified as an inborn error of vitamin D metabolism. The disorder began in the first year of life and was resistant to high doses of vitamin D2. Both children exhibited elevated serum levels of 1,25-(OH)2D, yet their intestines and bones were unresponsive to these high levels, maintaining normocalcemia despite elevated PTH levels. Treatment with oral 1,25-(OH)2D3 was ineffective, but significant clinical and radiographic improvements were observed with oral phosphorus supplements. The molecular basis of the disorder remained unclear.