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African health sciences · Mar 2015
The relationship between serum cortisol, adrenaline, blood glucose and lipid profile of undergraduate students under examination stress.
- Ignatius C Maduka, Emeka E Neboh, and Silas A Ufelle.
- Nnamdi Azikiwe University Awka, Human Biochemistry.
- Afr Health Sci. 2015 Mar 1; 15 (1): 131136131-6.
BackgroundStress is an extremely adaptive phenomenon in human beings and cortisol is a known stress hormone. Examination has been described as a naturalistic stressor capable of affecting human health.ObjectivesTo estimate the relationship between serum cortisol, adrenaline, fasting blood glucose (FBG) and lipid profile during examination stress.MethodsTwo hundred and eight (208) apparently-healthy undergraduate students (aged, 24 ± 6 years) were involved in the study. Exactly 5 mls of venous blood was collected from each subject 1-3 hours before a major examination. A second assessment was done on the same students 3-4 weeks before any examination (control samples). Cortisol and adrenaline were assayed using ELISA techniques, FBG was assayed using enzymatic method while lipid parameters were assayed using standard enzymatic-spectrophotometric methods.ResultsThere was statistically significant increase in serum cortisol, adrenaline, Total cholesterol, HDL-cholesterol and LDL-cholesterol levels in students under examination stress compared to the non examination period (p=0.001, 0.013, 0.0001, 0.0001 and 0.0001, respectively). FBG showed no significant increase. There was also significant positive correlation (r=0.297, p=0.032) between serum cortisol and TC/HDL ratio (cardiac risk factor) before examination stress but not during the stress period.ConclusionsSignificant positive correlation was observed between cortisol and TC/HDL ratio before examination stress.
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