Patterns of glycosaminoglycans excretions in the urine of Egyptians differing in their vitamin A status.

@article{Hussein1985PatternsOG,
  title={Patterns of glycosaminoglycans excretions in the urine of Egyptians differing in their vitamin A status.},
  author={Laila Hussein and F el-Nokaly and B H Hamdy},
  journal={International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition},
  year={1985},
  volume={55 2},
  pages={133-7}
}
Fifty-two boys were tested biochemically for their vitamin A status. Only 54% were found to have acceptable Plasma retinol levels. Deficient vitamin A status was associated with reduced GAG excretions. Vitamin A therapy restored the plasma retinol levels and increased the excretion of GAG. Chondroitin sulfate made up 90%, heparan sulfate 9.5% and hyaluronic acid less than 1% of the total urinary GAG content.