Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Increased Cortisol and Antiglucocorticoid Therapy in Mood Disorders: The Hippocampus as a Potential Drug Target

Version 1 : Received: 18 January 2024 / Approved: 19 January 2024 / Online: 19 January 2024 (09:58:52 CET)

How to cite: Gulyaeva, N.V. Increased Cortisol and Antiglucocorticoid Therapy in Mood Disorders: The Hippocampus as a Potential Drug Target. Preprints 2024, 2024011448. https://doi.org/10.20944/preprints202401.1448.v1 Gulyaeva, N.V. Increased Cortisol and Antiglucocorticoid Therapy in Mood Disorders: The Hippocampus as a Potential Drug Target. Preprints 2024, 2024011448. https://doi.org/10.20944/preprints202401.1448.v1

Abstract

The pathophysiology of many mood disorders is closely related with abnormal stress response associated with the dysfunction of the hypothalamic-pituitary-adrenal (HPA) axis and cortisol overproduction. The hippocampus, key structure of the limbic system responsible for both cognitive and emotional spheres, is selectively vulnerable to excess of glucocorticoids (GCs) inducing neuroinflammation and neurodegeneration. The antiGC therapy of psychiatric diseases, in particular depressive disorders, may be a useful additional treatment. Among other approaches, targeting glucocorticoid receptors, abounded in the hippocampus, is regarded as highly promising. However, though the preclinical data provide firm evidence to the concept of antiGC therapy for stress-related diseases, clinical studies still are at the proof-of-concept stage. Noteworthy, chronic GC excess is associated not only with mood diseases, but also with cognitive decline, metabolic disorders, diabetes. Potentially, antiGC (HPA axis modifying) therapy may alleviate affective symptoms, cognitive disturbances, GC and insulin resistance and adverse side effects of conventional drugs through beneficial effects on hippocampal dysfunction and neurodegeneration, neuroinflammation, and neurogenesis. Since stress/GC-associated neuroinflammation-mediated pathology of the limbic system and, specifically, the hippocampus, is a general feature typical for many brain diseases, the concept of antiGC therapy may be extended, tested and validated in a wider spectrum of cerebral pathologies.

Keywords

mood diseases; hippocampus; stress; hypothalamic-pituitary-adrenal (HPA) axis; cortisol; depression; glucocorticoids; antiGC; glucocorticoid receptor; mifepristone

Subject

Biology and Life Sciences, Neuroscience and Neurology

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