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Related Concept Videos

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...
Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
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...
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...
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...
Incomplete Dominance01:43

Incomplete Dominance

Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.

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Related Experiment Video

Updated: Jun 13, 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

Current issues in migraine genetics.

Jee-Young Lee1, Manho Kim

  • 1Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.

Journal of Clinical Neurology (Seoul, Korea)
|April 17, 2010
PubMed
Summary
This summary is machine-generated.

Migraine susceptibility involves genetic and environmental factors, complicating gene identification. Recent advances in familial hemiplegic migraine genetics offer insights into channelopathies and membrane excitability disorders.

Keywords:
GeneticsMigraine

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3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
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Published on: July 29, 2021

Area of Science:

  • Neuroscience
  • Genetics
  • Molecular Biology

Background:

  • Migraine is a complex neurological disorder with significant hereditary components.
  • Genetic and environmental factors contribute to migraine, yet identifying specific genes remains challenging due to heterogeneity.

Purpose of the Study:

  • To review the current understanding of genetic factors in migraine pathophysiology.
  • To highlight recent advancements in molecular genetics, particularly in familial hemiplegic migraine.

Main Methods:

  • Review of family/twin studies suggesting hereditary susceptibility.
  • Analysis of association studies involving genetic polymorphisms in various candidate genes (neurotransmitters, cytokines, etc.).
  • Examination of molecular genetics findings in familial hemiplegic migraine.

Main Results:

  • Family/twin studies confirm a strong hereditary basis for migraine.
  • Research has explored polymorphisms in genes related to neurotransmission, inflammation, homocysteine metabolism, and mitochondria.
  • Advances in familial hemiplegic migraine genetics have identified channelopathies and expanded the understanding of membrane excitability disorders.

Conclusions:

  • Identifying the specific genes responsible for common migraine types is complex.
  • Molecular genetics, especially in rare forms like familial hemiplegic migraine, is crucial for understanding migraine pathophysiology.
  • Future research should focus on identifying more candidate genes and exploring genotype-phenotype correlations.