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Genomics

Genomics

Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...

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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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Pharmacogenetics and Pharmacogenomics: Overview

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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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...

Principles of Pharmacogenetics: Types of Genetic Variants

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...

Pharmacogenetics of Drug Metabolism: Overview

Pharmacogenetics of Drug Metabolism: Overview

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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Related Experiment Video

Updated: May 17, 2026

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease

Published on: April 4, 2018

Nutrigenomics and nutrigenetics.

Dd Farhud¹, M Zarif Yeganeh, M Zarif Yeganeh

¹School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.

Iranian Journal of Public Health

|November 1, 2012

Summary

This summary is machine-generated.

Nutritional genomics explores how nutrients interact with our genes. Understanding nutrigenetics and nutrigenomics can personalize diets for optimal health and disease prevention.

Keywords:

Genetic variation Nutrigenetics Nutrigenomics Nutritional genomics

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A Fast and Quantitative Method for Post-translational Modification and Variant Enabled Mapping of Peptides to Genomes

A Fast and Quantitative Method for Post-translational Modification and Variant Enabled Mapping of Peptides to Genomes

Published on: May 22, 2018

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Last Updated: May 17, 2026

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease

Published on: April 4, 2018

A Fast and Quantitative Method for Post-translational Modification and Variant Enabled Mapping of Peptides to Genomes

A Fast and Quantitative Method for Post-translational Modification and Variant Enabled Mapping of Peptides to Genomes

Published on: May 22, 2018

Area of Science:

Nutritional Science
Genetics
Molecular Biology

Background:

Nutrients interact with molecular mechanisms, modulating physiological functions.
Nutritional genomics encompasses nutrigenetics and nutrigenomics, studying bioactive food components and the genome.
Genetic variations influence food tolerances, dietary needs, and personalized nutrition.

Purpose of the Study:

To explore the interaction between bioactive food components and the genome.
To understand how nutrients influence gene expression (nutrigenomics) and how gene variants respond to nutrients (nutrigenetics).
To highlight the potential for individualizing nutritional intake based on an individual's genome for health and disease prevention.

Main Methods:

Investigating the molecular mechanisms of nutrient-gene interactions.
Analyzing how genetic profiles affect the body's response to bioactive food components.
Examining the impact of dietary components on gene expression and structure.

Main Results:

Nutrigenomics explains how dietary components affect health by altering gene expression and structure.
Nutrigenetics demonstrates that genetic profiles influence the absorption, metabolism, and action of food components.
Gene-nutrient interactions offer insights into optimizing individual health and preventing diseases.

Conclusions:

Personalized diets based on specific genotypes can optimize individual health.
Understanding gene-nutrient interactions is crucial for the nutritional treatment of genome instability.
Tailoring nutrition to an individual's genetic makeup can prevent the conversion of healthy phenotypes to diseases.