Abstract:Hypothalamic cell nuclear uptake and binding of 3H-hydrocortisone(3H-HC)-receptor complexes were studied in a cell-free system. Greater net concentrations of radioactivity were found in the 0.4 MKC1 non-extractable fraction (sediment) in the first 20 min of incubation and in the 0.4 MKC1 extractable fraction (supernatant) from 30 to 60 min. Incubation in low ionic strength medium favored localization of radioactivity in the supernatant, whereas high ionic strength promoted greater localiz… Show more
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