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Related Concept Videos

Epigenetic Regulation01:37

Epigenetic Regulation

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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...
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Epigenetic Regulation01:46

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Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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Human Genetics01:28

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Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
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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.
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Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
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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...
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Rapid Fractionation and Isolation of Whole Blood Components in Samples Obtained from a Community-based Setting
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Epigenetic marks in suicide: a review.

Daniel F Ramos-Rosales1, Fernando Vazquez-Alaniz1,2, Norma Urtiz-Estrada1

  • 1Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango.

Psychiatric Genetics
|August 19, 2021
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Summary
This summary is machine-generated.

Epigenetic factors, including DNA methylation and histone modification, are linked to suicide risk. These epigenetic marks may serve as biomarkers and potential therapeutic targets for suicide prevention.

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Area of Science:

  • Neuroscience
  • Genetics
  • Psychiatry

Background:

  • Suicide is a complex global health issue with biological underpinnings.
  • Epigenetic factors are known to influence psychiatric disorders, suggesting a role in suicidal behavior.

Purpose of the Study:

  • To review molecular mechanisms of suicide from an epigenetic perspective.
  • To explore epigenetic factors in postmortem brain and peripheral blood samples.

Main Methods:

  • Review of studies on gene-specific DNA methylation.
  • Analysis of epigenome-wide association studies (EWAS).
  • Examination of histone modifications and interfering RNAs in suicide research.

Main Results:

  • Epigenetic mechanisms are implicated in the pathophysiology of suicide.
  • Studies examined epigenetic factors in both brain tissue and blood cells.
  • Identified various epigenetic modifications associated with suicide.

Conclusions:

  • Epigenetic marks are potential biomarkers for suicide risk assessment.
  • The reversibility of epigenetic modifications makes them promising therapeutic targets.
  • Understanding epigenetic regulation is crucial for suicide research and intervention.