The phrase "a marker for activities" is correct and usable in written English.
It can be used to refer to something that indicates or signifies specific actions or events.
Example: "The calendar serves as a marker for activities planned throughout the month."
Alternatives: "an indicator of activities" or "a sign for activities".
Salivary α-amylase (sAA) has been proposed as a marker for activity of the sympathetic nervous system (SNS).
Previous studies have documented alterations of the complement pathway in human hepatitis C; indeed, plasma C3 has been proposed as a marker for activity in this disease [ 24].
As central GLP-1 infusion increases sympathetic outflow towards BAT and WAT and subsequently stimulates thermogenesis [ 12, 13, 18], we analysed the expression of TH, a marker for activity of noradrenergic (norepiphrenergic) nerve fibres [ 19].
In addition, certain chromogranins and secretogranins, which are proteins that can be secreted by enteroendocrine cells and serve as a markers for activity of the enteric neuroendocrine system, have been found to be elevated in adults with IBS [57].
Alkaline phosphatase activity, a marker for osteoblast activity is significantly reduced in the mutant palate, indicating that osteoblasts do not reach a mature enough status where they are capable of bone mineralization (Fig. 3B).
Other important observation in terms of the metabolic activity was the ammonium ion production, which is a marker for proteolytic activity of the microbial population.
The level of serum anti-C1q antibody can be used as a marker for LN activity with higher sensitivity and specificity than traditional markers of disease activity, such as C3/C4 consumption and anti-dsDNA [62].
Because CYP1A2 activity cannot be measured directly in humans, the caffeine breath test (CBT), a marker for CYP1A2 activity, was conducted.
This thought may be further developed to question the use of sCgA as a marker of SNS activity as previously suggested [2], as the present data do not support sCgA as a marker for SNS activity for two reasons: first, the exercise response is not different between the wheelchair athlete subgroups, and second, the relationship with adrenaline is insignificant.
Moutsimilli, L. et al. Selective cortical VGLUT1 increase as a marker for antidepressant activity.
