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Endocrinology, Vol 109, 1784-1786, Copyright © 1981 by Endocrine Society

ARTICLES

LHRH inhibits [3H]thymidine incorporation by pituitary cells cultured in vitro

H Stepien

The effects of two synthetic neuropeptides, LHRH and neurotensin, on tritiated thymidine uptake by dispersed anterior pituitary cells were investigated. It was found that LHRH but not neurotensin (at concentrations between 10(-7) - 10(-11) M) inhibits incorporation of [3H]thymidine into DNA of pituitary cell nuclei, in a dose-dependent manner. These results indicate that LHRH can regulate not only secretory activity of the gonadotrophic cells but also can be involved in the control of anterior pituitary cell replication.




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Copyright © 1981 by The Endocrine Society