Ann Thorac Med 2017 Jul-Sep;12(3):183-190
Department of Physiology, King Saud University, Riyadh, Saudi Arabia.
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Ann Thorac Med 2016 Jan-Mar;11(1):43-8
Department of Medicine, College of Medicine, The University Sleep Disorders Center, King Saud University, Saudi Arabia; Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Aims: We hypothesized that if we control for lifestyle changes during Ramadan, Ramadan Islamic intermittent fasting (IF) reduces oxidative stress. This study was conducted to examine the effect of Islamic IF during and outside of Ramadan on the circadian changes in lipid peroxidation marker malondialdehyde (MDA) during and outside while controlling for potential confounders.
Methods: Serum MDA concentration was measured in eight healthy male volunteers at baseline (BL), after fasting for 1 week before Ramadan (BL fasting), and during Ramadan. Read More
Ann Thorac Med 2018 Jan-Mar;13(1):48-54
University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Background: Food restriction has been demonstrated to increase the alertness in different species and to increase the levels of the wake-promoting neurotransmitter orexin. We hypothesized that diurnal intermittent fasting (DIF) increases orexin-A levels during fasting. Therefore, we conducted this study to assess the effects of DIF, during the month of Ramadan, on orexin, while controlling for lifestyle changes that may accompany Ramadan such as sleep duration, bedtime and wake time, energy expenditure, light exposure, and food. Read More
Behav Brain Funct 2013 Aug 12;9(1):32. Epub 2013 Aug 12.
University Sleep Disorders Center, College of Medicine, King Saud University, Box 225503, 11324 Riyadh, Saudi Arabia.
Background: Ramadan fasting and its attendant lifestyle changes induce changes in the circadian rhythm and in associated physiological and metabolic functions. Previous studies that have assessed psychomotor performance during Ramadan fasting have reported conflicting results. Therefore, we designed this study to objectively assess the effects of intermittent fasting during and outside Ramadan (to control for lifestyle changes) on drowsiness, blink total duration and mean reaction time (MRT) test while controlling for potential confounders. Read More
PLoS One 2014 17;9(3):e92214. Epub 2014 Mar 17.
The University Sleep Disorders Center, Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia; National Plan for Science and Technology, King Saud University, Riyadh, Saudi Arabia.
We aimed to assess the effect of Islamic intermittent fasting, during and outside of Ramadan, on plasma levels of leptin and ghrelin while controlling for several potential confounding variables. Eight healthy male volunteers with a mean age of 26.6±4. Read More