Academic stress, social support, and secretory immunoglobulin A.

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Abstract
We examined the relation of academic stress and social support to salivary concentrations of secretory immunoglobulin A (S-IgA), an antibody class that plays an important role in muscosal defense against acute upper respiratory tract infections. We assayed whole, unstimulated saliva samples collected from 15 healthy undergraduates 5 days before their final exam period, during their exam period, and 14 days after their last final exam for S-IgA concentrations by single radial immunodiffusion. The students rated the university's general psychological climate as being more stressful during the exam period compared with the two other periods. Students who reported more adequate social support at the preexam period had consistently higher S-IgA levels than did their peers reporting less adequate social support. This latter finding is consonant with the social support direct effects hypothesis, which states that social support enhances health outcomes irrespective of whether the individual is exposed to stressful experiences. (PsycINFO Database Record (c) 2016 APA, all rights reserved)

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