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Related Concept Videos

Human Genetics01:28

Human Genetics

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...
Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
Principles of Pharmacogenetics: Types of Genetic Variants01:27

Principles of Pharmacogenetics: Types of Genetic Variants

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...
Genetic Lingo01:11

Genetic Lingo

Overview
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu01:29

Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu

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...
Behavioral Genetics and Its Designs01:23

Behavioral Genetics and Its Designs

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.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...

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Related Experiment Video

Updated: Jul 14, 2026

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
10:39

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache

Published on: June 2, 2014

Genetics in primary headaches.

Michael Bjørn Russell1

  • 1Head and Neck Research Group, Akershus University Hospital, Dr. Kobros vei 39, NO-1474 Nordbyhagen, Oslo, Norway.

The Journal of Headache and Pain
|June 15, 2007
PubMed
Summary

Genetic studies reveal primary headaches have both genetic and environmental causes. Familial aggregation and twin studies confirm increased risk in relatives, though specific genes for common headaches remain elusive.

Area of Science:

  • Neurology
  • Genetics
  • Epidemiology

Background:

  • Primary headaches like migraine, tension-type, and cluster headache have a significant familial component.
  • A positive family history is an imprecise indicator of genetic predisposition.
  • Familial aggregation studies and twin studies provide more robust evidence for genetic influence.

Purpose of the Study:

  • To review methods and findings in genetic studies of primary headaches.
  • To highlight the genetic basis of rare and common primary headache disorders.
  • To discuss the implications of genetic factors in headache etiology.

Main Methods:

  • Review of genetic study methodologies for primary headaches.
  • Analysis of familial aggregation data.

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Last Updated: Jul 14, 2026

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
10:39

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache

Published on: June 2, 2014

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05:40

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  • Examination of twin study results.
  • Identification of specific genes associated with rare headache types.

    • Main Results:

    • First-degree relatives of individuals with common primary headaches exhibit a significantly increased risk.
    • Twin studies corroborate the genetic contribution to primary headache disorders.
    • Three genes encoding ion channels have been identified for familial hemiplegic migraine, a rare autosomal dominant condition.
    • No specific genes have yet been identified for more prevalent primary headache types.

    Conclusions:

    • Primary headaches result from a complex interplay of genetic and environmental factors.
    • Genetic research has successfully identified causative genes for rare inherited headache disorders.
    • Further research is needed to elucidate the genetic underpinnings of common primary headaches.