Related Experiment Video
Updated: May 29, 2026
08:02
Fecal Glucocorticoid Analysis: Non-invasive Adrenal Monitoring in Equids
Published on: April 25, 2016
Adrenocortical dysfunction in depression: response to dexamethasone suppression test - a comparative study
K C Gurnani1, S N Sharma, J P Chansouria
1Lecturer in Dept. of Psychiatry, S.N. Medical College, Agra.
Indian Journal of Psychiatry
|September 20, 2011
Summary
Depressed patients exhibit elevated adrenocortical activity and abnormal cortisol suppression, distinguishing them from schizophrenics. These findings highlight cortisol levels as potential biomarkers for differentiating major depressive disorder from schizophrenia.
Area of Science:
- Neuroendocrinology
- Psychiatry
Background:
- Major Depressive Disorder (MDD) and Schizophrenia are distinct psychiatric conditions.
- Adrenocortical activity, particularly cortisol levels, is implicated in mood disorders.
Purpose of the Study:
- To investigate adrenocortical activity differences between MDD, Schizophrenia, and healthy controls.
- To assess the utility of the dexamethasone suppression test (DST) in differentiating these groups.
Main Methods:
- Overnight dexamethasone suppression test administered to 30 patients with MDD, 30 with Schizophrenia, and 30 healthy controls.
- Plasma and urinary cortisol levels were measured before and after dexamethasone administration.
Main Results:
- Depressed patients showed increased baseline cortisol and abnormal early escape from suppression, correlating with depression severity.
- Abnormal post-dexamethasone urinary cortisol and combined cortisol values were key differentiators between depressed patients and schizophrenics.
- Schizophrenia patients did not significantly differ from healthy controls in cortisol levels at any stage.
Conclusions:
- Cortisol dysregulation, indicated by DST abnormalities, is characteristic of Major Depressive Disorder.
- DST offers a potential biochemical method for differentiating MDD from Schizophrenia.
- Further research into specific depressive subtypes (bipolar, retarded) may reveal nuanced adrenocortical patterns.
More Related Videos
Related Concept Videos
01:27Adrenal Gland Disorders
Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
01:19Cushing Syndrome II: Pathophysiology
Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...
01:26Cushing Syndrome I: Introduction
Cushing syndrome refers to the collection of clinical manifestations that arise when tissues are exposed to excessive amounts of cortisol or cortisol-like medications over an extended period. Cortisol, a glucocorticoid produced by the adrenal cortex, regulates metabolism, immune responses, and the body’s adaptation to stress. When its concentration remains chronically elevated, these physiological pathways become dysregulated, resulting in the characteristic features of the syndrome.Exogenous...
01:27Depressive Disorders: MDD and Dysthymia
Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
01:31Hormones of the Adrenal Glands
Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
01:37Hypothalamic-Pituitary Axis
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.