Further evidence for the presence of androgen receptors in the lungs and in the head appendages of the cock

Abstract
The presence of cytoplasmic dihydrotestosterone receptors in the lungs, the comb, the wattle and the ear lobes of the cock was demonstrated by sucrose density-gradient centrifugation. All these tissues exhibited saturable in vitro binding of dihydrotestosterone in the 8-11S region of the gradient. When 0.5 M KCl was added to the lung, wattle, and comb cytosols and to the gradients, the radioactive dihydrotestosterone migrated in the 4-5S region. The mechanism of action of androgens in the head appendages of the cock and in other target tissues is probably similar.

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