Immunoglobulin secretions in the mesenteric lymph node in stressed rats.
To study the effects of different types of stressors on intestinal immune function, the lymphocyte subsets and associated immunoglobulin production in stressed rats were observed. Physical (electric foot shock) or psychological (non foot-shock) stress respectively were induced using a communication box. Rats were exposed to stress for 2 h per day, and the treatment was maintained for 14 consecutive days. Lymphocytes were isolated from the mesenteric lymph node (MLN) and spleen using Lympholyte-Rat. There was no change the lymphocyte subsets in MLN or spleen in either group. Foot-shock stress increased immunoglobulin secretions in MLN lymphocytes. These results demonstrated that intestinal immune functions were adaptively regulated under conditions of moderate stress.
Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, Hyogo, Japan.
Saori
S
Yamamoto
Akane
A
Motomura
Asuka
A
Akahoshi
Kyoko
K
Takahashi
Hisanori
H
Minami
D000311:Adrenal Glands / Q000276:immunology; D000818:Animals; D003345:Corticosterone / Q000097:blood; D016207:Cytokines / Q000032:analysis; D007070:Immunoglobulin A / Q000378:metabolism*; D007074:Immunoglobulin G / Q000378:metabolism*; D007422:Intestines / Q000276:immunology*; D008198:Lymph Nodes / Q000276:immunology*; D016131:Lymphocyte Subsets / Q000378:metabolism*; D008297:Male; D009929:Organ Size; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley; D013154:Spleen / Q000276:immunology; D013312:Stress, Physiological / Q000276:immunology*; D013315:Stress, Psychological / Q000276:immunology*
D016207:Cytokines; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D003345:Corticosterone