Cortisol in late-night saliva may be equal to urine test in Cushing's

Cortisol in late-night saliva may be equal to urine test in Cushing's

Measuring cortisol in a small sample of saliva collected late at night may work just as well as the 24-hour urine test — which involves collecting urine passed during the day and night — for checking whether Cushing’s disease is in remission after radiotherapy, a study by U.S. researchers found. In Cushing’s patients post-radiotherapy, late-night salivary cortisol testing, or LNSC, “appears to be clinically equivalent to UFC [the urinary free co…