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Epigenetic Regulation

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.

Epigenetic Regulation

Epigenetic Regulation

Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...

Biological Causes of Schizophrenia

Biological 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.

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

Psychosis: 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...

Psychological and Sociocultural Causes of Schizophrenia

Psychological and Sociocultural Causes of Schizophrenia

Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...

Genomic Imprinting and Inheritance

Genomic Imprinting and Inheritance

Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...

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Related Experiment Video

Updated: May 31, 2026

Immunostaining for DNA Modifications: Computational Analysis of Confocal Images

Immunostaining for DNA Modifications: Computational Analysis of Confocal Images

Published on: September 7, 2017

Is DNA methylation responsible for immune system dysfunction in schizophrenia?

Maryam Khojasteh-Fard¹, Mina Tabrizi, Mahsa M Amoli

¹Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Medical Hypotheses

|July 15, 2011

Summary

Schizophrenia susceptibility involves genetic and environmental factors, often triggered by stress. This study explores how DNA methylation changes in cytokine genes may explain immune imbalances linked to schizophrenia.

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Correlating Gene-specific DNA Methylation Changes with Expression and Transcriptional Activity of Astrocytic KCNJ10 (Kir4.1)

Correlating Gene-specific DNA Methylation Changes with Expression and Transcriptional Activity of Astrocytic KCNJ10 (Kir4.1)

Published on: September 26, 2015

Area of Science:

Neuroscience
Immunology
Genetics

Background:

Schizophrenia development is linked to both genetic predisposition and environmental stressors.
Immune system dysfunction, particularly Th1/Th2 imbalance and altered cytokine levels, is implicated in schizophrenia's etiology.
Cytokines possess neurotropic activities, suggesting a role in central nervous system (CNS) disorders.

Purpose of the Study:

To investigate the potential role of DNA methylation in cytokine gene promoters as a mechanism underlying Th1/Th2 imbalance in schizophrenia.
To explore how environmental factors might influence this epigenetic mechanism.

Main Methods:

The study hypothesizes a link between altered DNA methylation patterns in cytokine gene promoters and the observed Th1/Th2 imbalance in schizophrenia.
It considers environmental triggers like infections and gene-environment interactions as potential orchestrators of this methylation alteration.

Main Results:

The abstract presents a hypothesis rather than empirical results.
It posits that altered DNA methylation patterns in specific cytokine gene promoters could be a key mechanism driving Th1/Th2 immune imbalance in schizophrenia.

Conclusions:

Epigenetic modifications, specifically changes in DNA methylation patterns of cytokine genes, are hypothesized as a potential underlying mechanism for immune dysregulation in schizophrenia.
Environmental factors may play a crucial role in initiating these epigenetic changes in genetically susceptible individuals.