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Related Concept Videos

Pharmacogenetics and Pharmacogenomics: Overview01:29

Pharmacogenetics and Pharmacogenomics: Overview

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Pharmacogenetics and pharmacogenomics examine how genetic factors influence an individual's response to drugs. While pharmacogenetics focuses on the impact of specific genetic variants on drug effects, pharmacogenomics takes a broader approach, studying how genetic variation across populations contributes to differences in drug responses. These fields aim to explain why individuals may experience varying levels of efficacy or adverse reactions to the same medication.Variability in drug...
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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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Pharmacogenetics of Drug Metabolism: Overview01:27

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Genetic polymorphism in drug metabolism is crucial to the inter-individual variability observed in drug responses. Drug metabolism primarily involves the chemical modification of drugs and other xenobiotics to enhance their elimination by increasing their polarity. Two main classes of enzymes mediate this biotransformation process: Phase I enzymes, primarily cytochrome P450s, catalyze oxidation and reduction reactions, while other enzymes, such as esterases, mediate hydrolysis, and Phase II...
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Pharmacogenomics: Identification of New Drug Targets01:29

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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...
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Principles of Pharmacogenetics: Types of Genetic Variants01:27

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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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Pharmacokinetics in Pediatric Patients: Drug Metabolism01:24

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In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses...
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Pharmacogenomics in children.

Michael Rieder1

  • 1Department of Paediatrics, Children's Hospital, Western University, 800 Commissioners Road East, London, ON, Canada, N6C 2V5, mrieder@uwo.ca.

Methods in Molecular Biology (Clifton, N.J.)
|August 25, 2014
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Summary
This summary is machine-generated.

Genetics significantly impact children's disease and drug responses. Pharmacogenomic assessment is becoming more accessible, paving the way for personalized medicine in pediatric care, especially for conditions like childhood cancer.

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Area of Science:

  • Pediatric pharmacology
  • Genetics
  • Personalized medicine

Background:

  • Traditionally, genetic factors were overlooked in pediatric drug prescriptions.
  • Genetics are crucial determinants of both disease susceptibility and drug efficacy in children.
  • Recent advancements facilitate pharmacogenomic assessments in pediatric research.

Purpose of the Study:

  • To highlight the importance of genetics in pediatric drug therapy.
  • To discuss the growing role of pharmacogenomics in children's healthcare.
  • To emphasize the potential of personalized medicine for pediatric conditions.

Main Methods:

  • Review of historical practices in pediatric prescribing.
  • Analysis of current advancements in genetic research and pediatric studies.
  • Exploration of the ethical considerations in children's research.

Main Results:

  • Genetics influence pediatric disease development and drug response.
  • Pharmacogenomic assessment in children is increasingly feasible.
  • Personalized medicine approaches are gaining traction in pediatrics.

Conclusions:

  • Genetics are integral to understanding and treating pediatric diseases.
  • Pharmacogenomics promises to enhance therapeutic decision-making for children.
  • Personalized pediatric pharmacotherapy, particularly in oncology, offers significant benefits.