Glucocorticoid-induced changes in synaptic vesicles of rat phrenic nerve terminals.


The mean cross sectional area of synaptic vesicle profiles of the myoneural junction of rat diaphragm is increased significantly when rats are injected i.p. with single doses of 200 micrograms/kg dexamethasone 1/2 hr to 8 hr previously to a control injection of 0.9% NaCl. A maximum effect is observed at 8 hr after pretreatment with dexamethasone. The… (More)


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