Hair cortisol in newly diagnosed bipolar disorder and unaffected first-degree relatives

Hair cortisol is a promising new biomarker of retrospective systemic cortisol concentration. In this study, we compared hair cortisol concentrations in patients with newly diagnosed bipolar disorder (BD), their unaffected first-degree relatives and healthy individuals and identified potential predictors of hair cortisol concentrations in patients with BD. In a cross-sectional design, we compared hair cortisol concentrations in 181 patients with...