to investigate the involvement of different brain sites in the mediation of glucocorticoid feedback action , we implanted dexamethasone or corticosterone containing glass capillaries into the paraventricular and arcuate nuclei of the hypothalamus , into the lateral septum , the dorsal and ventral hippocampus , amygdala and the cerebral cortex of adrenalectomized male rats , and compared the plasma adrenocorticotropin ( acth ) values to those of the sham implanted controls .
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brain
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arcuate nuclei of