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Title: Changes in the nuclear uptake and retention of /sup 3/H-estrogen in gonadotrophs and lactotrophs as a function of age

Journal Article · · Anat. Rec.; (United States)

A quantitative autoradiographic immunocytochemical study was performed in which the nuclear uptake and retention of /sup 3/H-estradiol (/sup 3/H-E2) by luteinizing hormone (LH) and prolactin (PRL) cells was examined in 19-21-year-old baboons. /sup 3/H-E2 concentrating cells were found in all of the three lobes of the pituitary in varying percentages. Approximately 80% of PRL cells and nearly 100% of LH cells were labeled. A count of the number of silver grains over nuclei revealed a marked variation of the accumulation of /sup 3/H-E2 by LH cells and to a lesser extent in PRL cells. These results suggest functional heterogeneity among LH and PRL cells. The present results are discussed in relation to the physiological state of old animals.

Research Organization:
Univ. of Texas Health Science Center, San Antonio
OSTI ID:
6388761
Journal Information:
Anat. Rec.; (United States), Vol. 3
Country of Publication:
United States
Language:
English