behavioral
stressors
Immune
stimulation
(a)
0/+ (b)
| TABLE 1. Comparison of physiological responses to physical and behavioral stressors to those to infections and immune challenges | ||
|
|
Physical
and behavioral stressors |
|
| HPA axis (plasma CRF, ACTH, b-endorphin, and CS) |
|
|
| Sympathetic system (plasma NE) |
|
|
| Adrenal medulla (plasma epinephrine + NE) |
|
|
| Brain NE (MHPG) |
|
|
| Brain DA (DOPAC) |
|
0/+ (b)
|
| Brain 5-HT (5-HIAA) |
|
|
| Brain tryptophan |
|
|
(a) ,
increased.
(b) 0/+, unchanged or
increased.
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