Compensatory adrenal growth: a neurally mediated reflex

M. F. Dallman, W. C. Engeland, J. Shinsako

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

The responses of young rats to left adrenalectomy or left adrenal manipulation were compared to surgical sham adrenalectomy in which adrenals were observed but not touched. At 12 h right adrenal wet weight, dry weight, DNA, RNA, and protein content were increased (P < 0.05) after the first two operations. Left adrenal manipulation resulted in increased right adrenal weight at 12 h but no change in left adrenal weight. Sequential manipulation of the left adrenal at time O and the right adrenal at 12 h resulted in an enlarged right adrenal at 12 h (P < 0.01), and an enlarged left adrenal at 24 h (P < 0.05), showing that the manipulated gland was capable of response. Bilateral adrenal manipulation of the adrenal glands resulted in bilateral enlargement at 12 h (P < 0.01). Taken together with previous results, these findings strongly suggest that compensatory adrenal growth is a neurally mediated reflex.

Original languageEnglish (US)
Pages (from-to)408-414
Number of pages7
JournalAmerican Journal of Physiology
Volume231
Issue number2
StatePublished - Dec 1 1976

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