Involvement of gonadotropin in the uptake of vitellogenin into vitellogenic oocytes of the rainbow trout, Oncorhynchus mykiss.

@article{Tyler1991InvolvementOG,
  title={Involvement of gonadotropin in the uptake of vitellogenin into vitellogenic oocytes of the rainbow trout, Oncorhynchus mykiss.},
  author={Charles R. Tyler and John P. Sumpter and Hiroshi Kawauchi and Penny Swanson},
  journal={General and comparative endocrinology},
  year={1991},
  volume={84 2},
  pages={291-9}
}
The effects of two fully characterized, structurally distinct gonadotropins, GtH I and GtH II, on the uptake of vitellogenin (VTG) into oocytes of the rainbow trout, Oncorhynchus mykiss, were investigated both in vivo and in vitro. GtH I, injected into maturing vitellogenic females at a dose of 10 micrograms.kg body wt-1, increased the rate of [3H]VTG uptake into oocytes by more than two-fold, effectively doubling their rate of growth. Ovaries from females similarly treated with GtH II… CONTINUE READING

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