Chemicals and Drugs Commons^™

Cortisol Receptor Sensitivity As A Risk Factor For Depression, Michela Michielli

Honors Theses

In 2020, the World Health Organization reported over 264 million people across the world were suffering from depression. Studies have demonstrated that one source of depression is a hormonal imbalance involved in the stress response. Cortisol is a stress hormone regulated by the Hypothalamic-Anterior-Pituitary (HPA) Axis. Its effects on the stress response and other metabolic activities in the body are exerted through the glucocorticoid and mineralocorticoid receptors (GR and MR respectively).

Our research has examined mutations known as single-nucleotide-polymorphisms (SNPs) relating to cortisol-receptor sensitivity and the behavior of cortisol in the body to investigate the link between cortisol activity and …

Impact Of Single Nucleotide Polymorphisms On Hpa Axis Functionality In Depression, Claire Kelly

Honors Theses

The hypothalamic-pituitary-adrenal (HPA) axis plays a primary role in stress response through the regulated secretion of the glucocorticoid hormone cortisol. Diseases of cortisol dysregulation such as Cushing’s syndrome (hypercortisolemia) and Addison’s Disease (hypocortisolemia) are both associated with depression. Based on this we, and others, have hypothesized that mutations in the genes for the glucocorticoid receptor (GR), the closely related mineralocorticoid receptor (MR), and regulatory proteins associated with cortisol or GR function may contribute to depression in the absence of hyper- or hypo-cortisolemia. Our study investigated the genotypic frequency in the clinical population of several single nucleotide polymorphisms (SNPs) that affect …