Is an immunoassay available for the measurement of bioactive LH in serum?

@article{Rosenfield1992IsAI,
  title={Is an immunoassay available for the measurement of bioactive LH in serum?},
  author={Robert L. Rosenfield and J H Helke},
  journal={Journal of andrology},
  year={1992},
  volume={13 1},
  pages={1-10}
}
An in vitro bioassay for luteinizing hormone (LH) is in our opinion the "gold standard" bioassay. The rodent interstitial cell testosterone assay (RICT) is specific for bioactive LH and very sensitive, accurate, and reproducible. Diverse LH standards consistently display parallel dose-response characteristics. Sera also manifest parallel dose-response characteristics throughout reproductive life, with the exception of basal samples from prepubertal children. This indicates that all known… CONTINUE READING