Sacerdote, P Intermittent but not continuous inescapable footshock stress affects immune responses and immunocyte beta-endorphin concentrations in the rat. [electronic resource] - Brain, behavior, and immunity Sep 1994 - 251-60 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0889-1591 Standard No.: 10.1006/brbi.1994.1023 doi Subjects--Topical Terms: Acute DiseaseAnimalsCorticosterone--bloodCorticotropin-Releasing Hormone--bloodElectroshock--adverse effectsFootHelplessness, LearnedKiller Cells, Natural--immunologyLymphocyte ActivationLymphoid Tissue--chemistryMaleNeuroimmunomodulation--physiologyPeptide Fragments--pharmacologyRatsRats, Sprague-DawleyReceptors, Corticotropin-Releasing Hormone--antagonists & inhibitorsSpleen--immunologyStress, Physiological--etiologyTime Factorsbeta-Endorphin--analysis