Hirano T, Bando T, Niijima A. Effects of stress and hypophysectomy on distribution of [3H]leucine in the mouse adrenal medulla.
JOURNAL OF THE AUTONOMIC NERVOUS SYSTEM 1991;
32:81-5. [PMID:
2022823 DOI:
10.1016/0165-1838(91)90239-y]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Effect of stress and hypophysectomy on the distribution of [3H]leucine in the adrenal medulla of mice was examined by autoradiography. [3H]Leucine-derived radioactivity in adrenaline-storing (A) cells of the medulla was remarkably increased by immobilization with water immersion stress. The increase was prevented by adrenal denervation. Adrenal denervation itself reduced [3H]leucine incorporation by A cells. Hypophysectomy also reduced the amount of [3H]leucine in A cells. Although changes in noradrenaline-storing (NA) cells were not statistically significant, they were in the same direction as the changes observed in A cells. Present results showed that neural activity exerts trophic influence on leucine incorporation by adrenal chromaffin cells. Basal pituitary adrenocortical activity seems to be necessary for leucine incorporation in chromaffin cells.
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