Insulin regulation of rat growth hormone gene transcription.

@article{Yamashita1986InsulinRO,
  title={Insulin regulation of rat growth hormone gene transcription.},
  author={Shigeo Yamashita and Shlomo Melmed},
  journal={The Journal of clinical investigation},
  year={1986},
  volume={78 4},
  pages={1008-14}
}
We have previously shown that insulin suppresses growth hormone (GH) messenger (m) RNA levels in rat pituitary cells. To further delineate the molecular mechanism of insulin action, the effect of insulin treatment on GH gene transcription rates was examined in GH3 pituitary cells grown in serum-free defined medium. A transcriptional run-off assay was performed when intact isolated nuclei were allowed to continue RNA synthesis in an in vitro reaction. Specific incorporation of [32P]GTP into RNA… CONTINUE READING

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