Related Experiment Video
Updated: May 31, 2026
07:30
Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
Hypothalamus and pituitary volume in schizophrenia: a structural MRI study
Anne Klomp1, P Cédric M P Koolschijn, Hilleke E Hulshoff Pol
1Rudolf Magnus Institute for Neuroscience, Department of Psychiatry, University Medical Center Utrecht, Utrecht, The Netherlands.
The International Journal of Neuropsychopharmacology
|July 8, 2011
Summary
This study found no significant hypothalamic or pituitary volume differences in schizophrenia patients compared to healthy controls, suggesting the hypothalamic-pituitary-adrenal (HPA) axis may not be structurally impaired in this disorder.
Area of Science:
- Neuroimaging
- Psychiatry
- Endocrinology
Background:
- The hypothalamic-pituitary-adrenal (HPA) axis is implicated in psychotic disorders.
- Previous research suggests potential volumetric alterations in the hypothalamus and pituitary gland in these conditions.
Purpose of the Study:
- To investigate volumetric differences in the hypothalamus and pituitary gland between schizophrenia patients and healthy controls.
- To explore the influence of illness duration and antipsychotic medication type on these brain structures.
Main Methods:
- Magnetic Resonance Imaging (MRI) was used to acquire brain images.
- Manual outlining of the hypothalamus and pituitary gland was performed.
- Linear regression analyses were conducted to compare volumes between groups.
Main Results:
- No significant differences in hypothalamic or pituitary volumes were observed between schizophrenia patients and healthy controls.
- No significant volume differences were found based on illness duration (short vs. long).
- A trend suggested larger pituitary volumes in patients on typical antipsychotics compared to atypical antipsychotics.
Conclusions:
- Structural volume decreases in the hypothalamus and pituitary gland are not evident in schizophrenia, regardless of illness chronicity.
- These findings challenge the notion of significant HPA axis structural impairment in schizophrenia.
- Further research may clarify the subtle effects of medication on pituitary volume.
Related Concept Videos
01:29Biological Causes of Schizophrenia
Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin studies.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin studies.
01:27Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...
01:23Diencephalon: Hypothalamus and Coordination
The hypothalamus is a small yet highly complex and essential brain region that plays a crucial role in regulating various bodily functions. Anatomically, it is located at the base of the brain, just above the brainstem and below the thalamus, forming part of the limbic system.
The hypothalamus interacts with other brain regions, including the pituitary gland, through a direct physical connection called the hypothalamic-pituitary axis. The hypothalamus receives somatic and visceral inputs and...
The hypothalamus interacts with other brain regions, including the pituitary gland, through a direct physical connection called the hypothalamic-pituitary axis. The hypothalamus receives somatic and visceral inputs and...
01:27Imaging Studies IV: Magnetic Resonance Imaging
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...