An experimental model of stress-induced immunosuppression produced by electrical stimulation of the brain in the rat.
The present paper reports a model of stress induction, based on electrical stimulation of the brain in normal Wistar rats. Stress-related stimulation of the hypothalamic-pituitary-adrenal axis produced a rise in circulating corticosterone levels that correlated significantly with the impairment of some immunological parameters, such as delayed hypersensitivity reactions to dinitrofluorobenzene and to sheep red blood cells, together with changes in splenocyte proliferation and phagocytic activity of peritoneal macrophages. This experimentally elicited stress in the rat is proposed as a suitable model of immunosuppression that could be used for the evaluation of drugs with potential immunomodulatory properties.
Centro de Investigación Biomédica de Occidente, IMSS, Sierra Mojada No 800, Colonia Independencia SL, 44340 Guadalajara, Jalisco, Mexico. mmvilla@cucs.udg.mx
M M
MM
Villaseñor-García
X
X
Lozoya
A M
AM
Puebla-Pérez
D000818:Animals; D000906:Antibodies / Q000097:blood; D003345:Corticosterone / Q000097:blood; D004195:Disease Models, Animal; D004558:Electric Stimulation; D004912:Erythrocytes / Q000276:immunology; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007030:Hypothalamo-Hypophyseal System / Q000276:immunology*; D007108:Immune Tolerance / Q000276:immunology*; D017737:Macrophages, Peritoneal / Q000276:immunology; D008297:Male; D010587:Phagocytosis / Q000276:immunology; D051381:Rats; D017208:Rats, Wistar; D012756:Sheep; D013312:Stress, Physiological / Q000276:immunology*
D000906:Antibodies; D003345:Corticosterone