These works are licensed under a
Creative Commons Attribution-Noncommercial-This module explains what is meant by penetrance and how the penetrance of a mutation can be calculated. The concepts of complete, incomplete and lifetime penetrance are explained.
This module describes a framework for evaluating genetic tests – the ACCE framework. Each component of the framework is examined: the disorder and the setting where the test is being used, the analytical validity, the clinical validity, the clinical utility and ethical, legal and social aspects of the test.
This module explains what a patent is and the benefits and disadvantages of patents. It examines the criteria that an invention must meet to be patentable – novelty, non- obviousness, being useful and how it is disclosed. It presents what can and what cannot be patented.
Moral theories are the frameworks we use to justify or clarify our position when we decide what view or what actions to take. The module describes 3 moral theories of relevance to public health genomics – consequentialism, deontology and bioethics.
Pharmacogenomics concerns the genetic influences on an individual’s response to drugs. This module examines the ways that genes influence the way that individual responds to drugs and looks at the pharmacokinetic and pharmacodynamic properties of drugs. Advances in this field are considered, in particular the use of pharmacogenetic knowledge in cancer therapeutics.
This module examines the techniques that have been developed for detecting, copying and sequencing DNA. It describes the processes of hybridisation, fluorescent in situ hybridisation (FISH), polymerase chain reaction (PCR) and DNA Sanger sequencing. It concludes with information on how DNA microarrays are undertaken and their applications.
This module describes the types of studies that are undertaken to investigate which genes are involved in particular disease causation. Linkage studies and gene-disease association studies are explored and the advantages and disadvantages of these types of studies.
Twin and adoption studies have been used to assess the genetic contribution as compared to the environmental contribution to disease causation. The value of comparing monozygotic and dizygotic twins is examined as well as the advantages and disadvantages of twin studies. Similarly the reasons for undertaking adoption studies are explored and the advantages and disadvantages of these studies.
Consent is a basic component of many types of everyday encounter. This module examines the history of the notion of informed consent, why there is a need for informed consent and the different types of consent. It also investigates which type of consent is required for different situations. It describes the different parts of the informed consent process.
Clinical utility refers to the likelihood that genetic information will lead to an improved health outcome. The following aspects of clinical utility are considered - the effectiveness of the available interventions, the social consequences of the genetic information and the economic implications of genetic testing and follow up.
We have prepared ten short animated tutorials covering some of the basics of public health genomics and genetic testing. The tutorials are all stand-alone modules, which can either be watched independently or as part of series.
These tutorials have been developed on an experimental basis in order to explore the possibilities of this medium. We welcome any feedback you have: each module ends with a form for this purpose.
Click here to view introductory text
Public health genetics is primarily concerned with understanding the genetic basis for disease and, where possible, using this information to improve the health of the population. Before starting to explore the implications of genomics, it is important to have a firm grounding in the basics of DNA Test Methods and technologies used to sequence the human genome and analyse genetic information.
Unlike most traditional genetic disease, many of the complex diseases that are prevalent in modern society are not caused simply by a single gene, but by variations in a number of genetic and environmental factors. The importance of the genetic component to a particular disease can be investigated using a number of different epidemiological methods, such as Twin Adoption Studies. Rather than directly causing a disease, some gene variants confer Disease Susceptibility and may alter an individual’s risk of developing a particular disease relative to the general population risk. Large, high powered studies are usually required to identify such variants.
The likelihood that a person carrying a particular mutation will develop a disease is measured by its Penetrance, which is important when assessing the relevance and Clinical Utility of testing for a particular gene variant. There are numerous genetic tests currently available, including those for disease causing mutations as well as disease susceptibility variants which may be useful for risk assessment. Rather than investigating the genetic basis for disease, so-called Pharmacogenomics tests seek to assess differences in the drug response between individuals in order to inform therapeutic choices or assist in the design of new therapeutics. As with all diagnostic tests, there must be a framework for assessing genetic tests in order to ensure that maximum benefit is derived from testing; the ACCE evaluation process has been proposed for this purpose, in which the diagnostic accuracy and clinical relevance of a test are considered, as well as its ethical, social and legal implications.
Public health genetics is concerned not just with science and medicine but also with the wider implications of genomics. Although a number of Moral Theories have been developed by philosophers throughout the ages, modern bioethicists must grapple with novel and complex ethical issues such as Informed Consent, privacy and autonomy. Who has the right to access an individual’s genetic information? Should we regulate the use of genetic Patents? These questions and many others must be carefully considered by scientists, medics, lawyers and philosophers before society can truly embrace the post-genomic era.
We hope you find these animated tutorials useful and informative. If you would like to leave feedback, please contact Simon Leese.
Pharmacogenomics concerns the genetic influences on an individual’s response to drugs. This module examines the ways that genes influence the way that individual responds to drugs and looks at the pharmacokinetic and pharmacodynamic properties of drugs. Advances in this field are considered, in particular the use of pharmacogenetic knowledge in cancer therapeutics.
Moral theories are the frameworks we use to justify or clarify our position when we decide what view or what actions to take. The module describes 3 moral theories of relevance to public health genomics – consequentialism, deontology and bioethics.
This module explains what is meant by penetrance and how the penetrance of a mutation can be calculated. The concepts of complete, incomplete and lifetime penetrance are explained.
This module describes a framework for evaluating genetic tests – the ACCE framework. Each component of the framework is examined: the disorder and the setting where the test is being used, the analytical validity, the clinical validity, the clinical utility and ethical, legal and social aspects of the test.
This module explains what a patent is and the benefits and disadvantages of patents. It examines the criteria that an invention must meet to be patentable – novelty, non- obviousness, being useful and how it is disclosed. It presents what can and what cannot be patented.
This module examines the techniques that have been developed for detecting, copying and sequencing DNA. It describes the processes of hybridisation, fluorescent in situ hybridisation (FISH), polymerase chain reaction (PCR) and DNA Sanger sequencing. It concludes with information on how DNA microarrays are undertaken and their applications.
This module describes the types of studies that are undertaken to investigate which genes are involved in particular disease causation. Linkage studies and gene-disease association studies are explored and the advantages and disadvantages of these types of studies.
Twin and adoption studies have been used to assess the genetic contribution as compared to the environmental contribution to disease causation. The value of comparing monozygotic and dizygotic twins is examined as well as the advantages and disadvantages of twin studies. Similarly the reasons for undertaking adoption studies are explored and the advantages and disadvantages of these studies.
Consent is a basic component of many types of everyday encounter. This module examines the history of the notion of informed consent, why there is a need for informed consent and the different types of consent. It also investigates which type of consent is required for different situations. It describes the different parts of the informed consent process.
Clinical utility refers to the likelihood that genetic information will lead to an improved health outcome. The following aspects of clinical utility are considered - the effectiveness of the available interventions, the social consequences of the genetic information and the economic implications of genetic testing and follow up.