Repository of Research and Investigative Information

Repository of Research and Investigative Information

Kurdistan University of Medical Sciences

Evaluating the salivary alpha-amylase level under psychological stress and its relationship with rumination and the five personality traits

(2015) Evaluating the salivary alpha-amylase level under psychological stress and its relationship with rumination and the five personality traits. Journal of Mazandaran University of Medical Sciences.

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Abstract

Background and purpose: Salivary alpha amylase (SAA) is used as a noninvasive biomarker to assess the activity of the sympathetic-adrenal-medullary system. The aim of this study was to evaluate the salivary alpha-amylase level under psychological stress and its relationship with rumination and the five personality traits. Materials and methods: In a cross-sectional study, 45 medical students who wanted to take final exams were selected using simple random sampling. NEO Personality Inventory-Short Form and emotional control questionnaire (ECQ) were completed two months before the exam. Saliva samples were taken from the students in non-stressful (control) and stressful conditions. SSA level was measured by photometry and data was analyzed using paired samples t-test, Pearson correlation analysis and stepwise regression. Results: Results: A significant difference was found between the mean of SAA level in the rest and under exam stress. Also, we found a significant correlation between SAA level with neuroticism (P<0.01), agreeableness (P<0.05) and rumination (P<0.01), explaining 49 of the variance of salivary alpha-amylase under stress exam. Conclusion: According to this study, the SAA level may increase in individuals with traits of neuroticism, agreeableness and ruminative thoughts in response to psychological stressors (e.g. exam). Also, measuring SAA levels could be used in assessing physiological responses to stress, as a noninvasive method. © 2015, Mazandaran University of Medical Sciences. All rights reserved.

Item Type: Article
Keywords: alpha amylase saliva isoenzyme; biological marker, agreeableness; Article; clinical evaluation; controlled study; correlation analysis; cross-sectional study; human; medical student; mental stress; neurosis; personality; personality test; photometry; questionnaire; rest; rumination; saliva level
Page Range: pp. 22-33
Journal or Publication Title: Journal of Mazandaran University of Medical Sciences
Volume: 25
Number: 126
Publisher: Mazandaran University of Medical Sciences
ISSN: 17359279
Depositing User: مهندس جمال محمودپور
URI: http://eprints.muk.ac.ir/id/eprint/901

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