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Related Concept Videos

Human Genetics01:28

Human Genetics

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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.
The complex relationship between genetics and psychology is observable through common biological components such...
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Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu01:29

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Genetic variations significantly influence drug response through pharmacokinetics, receptor interactions, and biologic milieu modifications. Pharmacokinetic alterations impact drug metabolism and clearance, affecting efficacy and toxicity. Variants in drug-metabolizing enzymes, such as CYP2C9 and CYP2C19, alter drug activation and elimination. For example, CYP2C9 loss-of-function variants require lower warfarin doses to prevent excessive bleeding, while CYP2C19 variants reduce clopidogrel...
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Principles of Pharmacogenetics: Types of Genetic Variants01:27

Principles of Pharmacogenetics: Types of Genetic Variants

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The human genome is over 99.9% identical between individuals, yet genetic differences exist at millions of bases. The human genome contains approximately 3 million variant positions per individual, many of which are heterozygous, contributing to genetic diversity and individual traits. Genetic variations include single-nucleotide polymorphisms (SNPs), insertions, deletions, and copy number variations (CNVs).SNPs, the most common variation, involve single-base changes in DNA. These can be...
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Genomic Imprinting and Inheritance02:30

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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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Comparing Copy Number Variations and SNPs02:26

Comparing Copy Number Variations and SNPs

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Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
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Behavioral Genetics and Its Designs01:23

Behavioral Genetics and Its Designs

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Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
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Related Experiment Video

Updated: Apr 3, 2026

Identification and Classification of Position-specific GABAA Receptor Subunit Missense Variants for Their Role In Hippocampal Pyramidal Neurons
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Immunogenetic Variants in Major Mental and Neurodevelopmental Disorders.

Sigrid Le Clerc1, Jeremy Bernard2, Jaehyoung Choi3

  • 1Laboratoire Génomique, Bio-informatique et Chimie Moléculaire (EA7528), Conservatoire National des Arts et Métiers, Paris, France.

Biological Psychiatry
|April 1, 2026
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Immune system gene variations contribute to major mental disorders like schizophrenia and autism. Understanding these immunogenetic links may lead to personalized treatments for inflamed patient subgroups.

Keywords:
Adaptive immunityHuman leukocyte antigenImmunogeneticInnate immunityMajor mental disorders

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Area of Science:

  • Psychiatric Genomics
  • Immunology
  • Neuroscience

Background:

  • Major mental disorders (MMDs) are heterogeneous, chronic conditions with complex causes.
  • Evidence suggests immune dysregulation and chronic inflammation are implicated in MMDs, impacting prognosis and treatment.
  • Immunogenetic factors interacting with environmental risks may drive this inflammation.

Purpose of the Study:

  • To review immunogenetic variants associated with MMDs.
  • To explore the role of innate and adaptive immunity in MMDs.
  • To identify research gaps and future directions in immuno-psychiatry.

Main Methods:

  • Literature review focusing on immunogenetic variants in MMDs.
  • Analysis of data from initiatives like the Psychiatric Genomics Consortium (PGC).
  • Examination of both innate and adaptive immune gene associations.

Main Results:

  • Abnormal immune processes and chronic low-grade inflammation are linked to MMD subgroups.
  • Immunogenetic variants, particularly in the major histocompatibility complex (MHC) region, are associated with schizophrenia and bipolar disorder.
  • Both innate and adaptive immunity genes are implicated.

Conclusions:

  • Immunogenetic factors play a significant role in the pathophysiology of MMDs.
  • Understanding these links is crucial for patient stratification and personalized treatment strategies.
  • Further translational research in immuno-psychiatry is needed to develop targeted therapies.