Influences of distress and alcohol consumption on the development of a delayed-type hypersensitivity skin test response.
OBJECTIVE
This paper reports the effects of naturally occurring levels of distress on the development of delayed-type hypersensitivity (DTH) skin test responses. These in vivo measures provide a biologically relevant assessment of cellular immune competence.


METHODS
Subjects (N = 166) were immunized (baseline) with the novel antigen, keyhole limpet hemocyanin (KLH), and DTH skin test responses against KLH were assessed 3 weeks later (follow-up). The CMI Multitest (Merieux, France), which evaluates DTH responses to a panel of seven antigens, was also administered at follow-up. Emotional distress was assessed at baseline and follow-up by the Profile of Mood States.


RESULTS
Distress levels at baseline were associated with a reduced likelihood of developing DTH responses against KLH at follow-up (r = -0.22, p =.01). There was no relationship between distress at follow-up and cutaneous DTH in response to KLH (r = 0.09, p =.24) or in the Multitest (r = -0.03, p =.70). In addition, higher levels of alcohol consumption at baseline (r = -0.19, p =.02) and at follow-up (r = -0.20, p =.01) were associated with a decreased likelihood of developing cutaneous DTH against KLH.


CONCLUSIONS
Everyday levels of distress predicted the capacity of the cellular arm of the immune system to exhibit recall responses to an antigen, when the experimental paradigm allowed the assessment of distress at the time of antigen sensitization. Moderate alcohol consumption independently affected cutaneous DTH.
School of Psychology, University of Western Sydney, Locked Bag 1797 Penrith South DC, NSW, 1797 Australia. aj.smith@uws.edu.au
Alison J
AJ
Smith
Ute
U
Vollmer-Conna
Barbara
B
Bennett
Ian B
IB
Hickie
Andrew R
AR
Lloyd
D000293:Adolescent; D000328:Adult; D000428:Alcohol Drinking / Q000276:immunology*; D000431:Ethanol / Q000494:pharmacology; D005260:Female; D006304:Health Status; D006433:Hemocyanins / Q000008:administration & dosage / Q000276:immunology; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000276:immunology* / Q000523:psychology; D007114:Immunization / Q000379:methods / Q000523:psychology; D016015:Logistic Models; D008297:Male; D018448:Models, Immunological; D010555:Personality Inventory; D011598:Psychoneuroimmunology; D012882:Skin Tests; D013315:Stress, Psychological / Q000276:immunology* / Q000523:psychology
D000431:Ethanol; D006433:Hemocyanins; C032808:keyhole-limpet hemocyanin