In this model we studied diurnal changes in neurotrophins and serotonergic function in candidate brain regions mediating depressive behaviour.

NtSPSC mRNA level increased appreciably during the dark period while transcript levels of the other isoforms showed no diurnal changes.

We performed an observational study where we compared diurnal changes of the gut microbiota with temporal changes of plasma metabolites.

Basal, epinephrine-stimulated, and epinephrine-induced lipolysis of fat cells from control rats showed diurnal changes, and the rhythms and their amplitude were affected by meal feeding.

Both s-TK and s-CA 125 levels showed considerable diurnal changes over the 24-h period in individual patients, in marked contrast to normal subjects.

Diurnal changes of glycogen contents in heart and adipose tissue differed from those in liver and skeletal muscle.

Diurnal changes in tissue glycogen stores were determined in rats in relation to the feed timing of sucrose.