Salivary biomarkers associated with examination stress among MLT final year undergraduates / Farah Dayana Rosli

Rosli, Farah Dayana (2011) Salivary biomarkers associated with examination stress among MLT final year undergraduates / Farah Dayana Rosli. Degree thesis, Universiti Teknologi MARA (Kampus Puncak Alam).


This study aims to identify the association of academic examination stress with salivary cortisol, salivary Immunoglobulin A (IgA), and salivary alpha-amylase. In addition, this study is also to assess the self-perceived stress before and after an academic examination and its association with the marks scored. Five minutes unstimulated saliva sample were collected from thirty-nine Medical Laboratory Technology (MLT) final year undergraduates before and after a one and a half hour written test. The students also indicated how stress they are on a scale of 1 to 5 rating point, before and immediately after the test. Higher cortisol levels were observed before the exam (p<0.001) and IgA showed higher levels after the exam (p=0.032). No significant differences were observed for alphaamylase before and after the exam (p=0.140). The students perceived a higher level of stress prior to the test (p=0.006). There was a no correlation between before (r=0.098, p=0.554) and after exam self-perceived stress with exam marks (r=-0.294, p=0.126). These findings suggest that salivary cortisol and IgA could be a useful stress biomarker associated with acute stress such as examination.


Item Type: Thesis (Degree)
Email / ID Num.
Rosli, Farah Dayana
Email / ID Num.
Thesis advisor
Haron, Norhisham
Subjects: R Medicine > RC Internal Medicine > Neuroscience. Biological psychiatry. Neuropsychiatry
R Medicine > RC Internal Medicine > Neoplasms. Tumors. Oncology > Examination. Diagnosis
R Medicine > RC Internal Medicine > Hypertension
T Technology > TP Chemical technology > Biotechnology
Divisions: Universiti Teknologi MARA, Selangor > Puncak Alam Campus > Faculty of Health Sciences
Programme: Bachelor of Medical Laboratory Technology
Keywords: salivary biomarkers, stress, undergraduates
Date: 2011
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