Journal of Biological Rhythms Food Entrainment: Methodological Issues on Behalf Of: Society for Research on Biological Rhythms

The Effects of Daily Rhythms on Sports Functions and Physiological Variables of Immune Elite Swimmers

Introduction Daily rhythm as one of the biological rhythms with a period of about 24 hours on various body systems and physiological responses affect on them. Body temperature is a fundamental variable as one of the specifications used daily rhythms The main purpose of this study was evaluating the effect of circadian rhythms on exercise performing and physiological variants of security system ...

Is food-directed behavior an appropriate measure of circadian entrainment to restricted daytime feeding?

Effects of Lycium barbarum. polysaccharide on type 2 diabetes mellitus rats by regulating biological rhythms

Objective(s): Type 2 diabetes mellitus (T2DM) is associated with circadian disruption. Our previous experimental results have showed that dietary Lycium barbarum. polysaccharide (LBP-4a) exhibited hypoglycemic and improving insulin resistance (IR) activities. This study was to explore the mechanisms of LBP-4a for improving hyperglycemia and IR by regulating biological rhythms in T2DM rats. Mat...

Influence of N-Phthaloyl GABA on the Circadian Rhythms of Lipid Peroxidation and Antioxidants in Wistar Rats under Constant Light

N-Phthaloyl GABA was administrated daily (50 mg/Kg body weight-i.p) to Wistar rats for 21 days and circadian rhythms of thiobarbituric acid reactive substances (TBARS) and antioxidants such as reduced glutathione (GSH), catalase (CAT) and superoxide dismutase (SOD) were studied under constant light (LL) conditions. Delayed acrophase of TBARS and advanced acrophase of antioxidants (GSH, CAT and ...

Effect of an Antagonist of Vasoactive Intestinal Polypeptide on Biological Rhythm of Rest Activity in the Rat

Abstract Vasoactive Intestinal Polypeptide (VIP), has been found in different neurotransmitter systems and exists in various nerve tracts in the brain. Potential role of this peptide in physiological processes such as regulation of sleep and wakefulness, and biological rhythms has been confirmed in several reports. In the present research effects of intracerebroventricular (ICV) injection of a...