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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...

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...

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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.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...

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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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Evolutionary Relationships through Genome Comparisons

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Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...

Genetic Variation

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Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
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Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay (EMSA) and DNA-affinity Precipitation Assay (DAPA)

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Consent forms in genomics: the difference between law and practice.

Paula Boddington¹, Liam Curren, Jane Kaye

¹HeLEX Centre for Health, Law and Emerging Technologies, Department of Public Health, University of Oxford, Oxford OX3 7LF, UK.

European Journal of Health Law

|December 2, 2011

Summary

This summary is machine-generated.

Informed consent forms for biomedical research are crucial, especially with increased secondary data use. A review of European Genome-Wide Association Studies consent forms found common elements, but only two are legally required in the UK, questioning current practices.

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Area of Science:

Biomedical research ethics
Genomic research regulations

Background:

Informed consent is essential for biomedical research participation.
The rise of biobanking and secondary data analysis increases the importance of consent forms.
European Genome-Wide Association Studies (GWAS) generate large datasets requiring clear participant consent.

Purpose of the Study:

To analyze common elements in European GWAS consent forms.
To compare consent form elements with UK legal requirements.
To inform future best practices for participant consent documentation.

Main Methods:

Review of selected informed consent forms from European GWAS.
Identification and analysis of recurring elements within these consent forms.
Comparison of identified elements against UK legal mandates for research consent.

Main Results:

Four common elements were consistently found across all reviewed consent forms.
Only two of these four common elements are mandated by UK law.
A discrepancy exists between common consent practices and legal requirements in the UK.

Conclusions:

Current informed consent practices in European GWAS may exceed legal requirements in some aspects.
There is a need to re-evaluate the essential components of informed consent forms for research participants.
Findings can guide the development of future, compliant, and effective participant information and consent documentation.