In a new study, an ambulatory microdialysis system combined with ultrasensitive liquid chromatography-tandem mass spectrometry enabled the building of a 24-h high-resolution profile of adrenal steroids in the tissue by sampling interstitial fluid in 214 healthy volunteers. Daily and ultradian variations of eight free steroids, including cortisol and aldosterone, have been demonstrated, which opens new diagnostic perspectives for endocrine diseases.
- Fidéline Bonnet-Serrano
- Jérôme Bertherat
