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salivary cortisol

Overview

Salivary cortisol is the fraction of the steroid hormone cortisol measured in saliva, and it is widely used as a non-invasive biomarker of hypothalamic-pituitary-adrenal (HPA) axis activity. Because salivary cortisol reflects the biologically active, unbound portion of circulating cortisol, it is commonly used in research and clinical settings to assess stress responses, adrenal function, and endocrine dysregulation.

In biomedical research, salivary cortisol is especially useful for monitoring dynamic changes over time, such as responses to acute stress, surgery, pain, exercise, or endocrine interventions. It is frequently paired with other markers of autonomic or endocrine activity, including salivary alpha-amylase, plasma hormone profiling, and targeted metabolomics, to characterize stress physiology more comprehensively.

Recent Publications Summary

Recent publications have used salivary cortisol as a non-invasive biomarker of stress physiology and treatment response in clinical and experimental settings. In a randomized controlled trial of bright light therapy for depression, salivary cortisol was measured alongside melatonin to assess circadian and mood-related effects; the morning bright light group showed improvement in anhedonia, and changes in anhedonia were correlated with melatonin phase shifts, while cortisol indices were also tracked throughout treatment 41785919Mar. Salivary cortisol was also incorporated into biomarker-focused studies of cortisol detection platforms, including a time-gated fluorescent aptamer sensor designed for continuous monitoring of cortisol in complex biological matrices and a triple-mode SERS-LFIA point-of-care platform for ultrasensitive cortisol detection 42017428Apr42009419Apr.

In peri-implant research, cortisol was quantified in peri-implant crevicular fluid rather than saliva, but the study similarly evaluated stress-related endocrine markers in relation to oral disease severity and psychometric measures 42461416Jul. More broadly, several recent publications addressed adrenal insufficiency, corticosteroid replacement, and cortisol dynamics in critical illness or postoperative settings, including study protocols for hydrocortisone supplementation in CIRCI and prednisolone-induced adrenal insufficiency, as well as analyses of postoperative hyponatremia and pituitary surgery outcomes 42309657Jun42276802Jun42301338Jun42301545Jun. These studies did not report salivary cortisol results, but they reflect the continued clinical relevance of cortisol measurement in endocrine and stress-related disorders 42309657Jun42276802Jun42301338Jun42301545Jun.

What Changes, What Holds

1. Salivary cortisol is still being used mainly as a stress-response readout, but now also as a treatment-response and assay-development target
METHOD Bright-light work keeps salivary cortisol in its established role as a non-invasive marker of HPA-axis and circadian physiology, while the sensor papers shift the emphasis toward how cortisol is measured rather than what cortisol means biologically 41785919Mar42017428Apr. The practical change is that salivary cortisol is increasingly treated as something to monitor continuously or at point of care, but this does not alter the baseline account of its clinical and research utility.

2. Cortisol measurement remains clinically relevant beyond saliva, but these studies do not add new salivary-cortisol biology
REINFORCES The peri-implant and endocrine papers extend the broader importance of cortisol assessment in oral disease, adrenal insufficiency, critical illness, and postoperative care, yet they do not report salivary cortisol results or challenge the baseline description of saliva as a biomarker of HPA activity 42461416Jul42309657Jun. Their main effect is to show continued demand for cortisol-related endocrine readouts, not a new role for salivary cortisol itself.

Overview update candidates: none.

⚠️ Content is generated using Large Language Models (LLMs) and may contain errors or hallucinations. Experts periodically review it to verify accuracy and maintain database integrity.