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Researchers at the University of Leeds (UoL) have identified mutations in key genes which are major causes of deafness and blindness. Mutations in GJB2, identified in a Leeds/London collaboration, are the most common cause of human inherited deafness, affecting millions worldwide, and Leeds researchers have also highlighted 13 key genes involved in inherited blindness, accounting for an estimated 5% of around 2 million people throughout the world with inherited eye diseases. This work has led to the availability of vital genetic testing, enabling early diagnosis, better management and improving outcomes for patients, as well as better counselling and prenatal screening for families.
Our research has had impact on the activities of practitioners and their services, health and welfare of patients, on society and on public policy. New diagnostic tests for genetic deafness have been introduced, and healthcare guidelines and professional standards adopted through our investigation of the aetiology of childhood-onset hearing loss. Disease prevention has been achieved by our research on antibiotic-associated deafness, public awareness of risk to health and hearing has been raised, and we have increased public engagement through debate on scientific and social issues. We have also influenced public policy on ethics of genetic testing for deafness with our research resulting in improved quality, accessibility and acceptability of genetic services among many hard-to-reach groups (deafblind, culturally Deaf, and the Bangladeshi population of East London).
As a result of research from Oxford's Professor Andrew Wilkie, accurate genetic diagnostic tests are now available for over 23% of all craniosynostosis cases nationally and internationally, leading to improved family planning and clinical management of this common condition worldwide. The premature fusion of cranial sutures, known as craniosynostosis, is a common developmental abnormality that occurs in 1 in 2,500 births. Over the past 20 years, the University of Oxford's Clinical Genetics Lab, led by Professor Wilkie in collaboration with the Oxford Craniofacial Unit, has identified more than half of the known genetic mutations that cause craniosynostosis and other malformations of the skull.
Identification of MUTYH by researchers at Cardiff University as the first gene causing autosomal recessive colorectal cancer led to international adoption of MUTYH genetic testing in the management of familial colorectal cancer and thereby to global improvement in genetic counselling and colorectal cancer prevention. Since 2008 MUTYH gene testing has been introduced progressively and is now provided by at least 84 European state and commercial diagnostic laboratories. Commercialisation of testing in North America via a licence to Myriad Genetics Inc. generated income of approximately $5M between 2008 and 2011 and licence fees and royalties to date of £331,947. Thus we claim impacts in health and commercial benefit, the financial beneficiaries being Myriad Genetics and Cardiff University.
Although individually infrequent, rare diseases collectively are a major health burden, particularly for individuals who suffer with conditions that are not routinely diagnosed or have no effective care pathways. Through the work of Professor Tim Barrett, the University of Birmingham is internationally recognised for translational research in rare inherited diabetes and obesity syndromes. This has had major impacts on patient care through gene identification for devastating multi-system syndromes; development of a unique international diagnostic testing service combining molecular testing with international clinical expertise; European reference centre status for three NHS highly specialised multidisciplinary services; and leadership of the European Registry for rare diabetes syndromes. Our national and international leadership for these previously poorly-served conditions has enabled sharing of best clinical practice, including development of clinics for Wolfram syndrome across the world.
Impact: Health and welfare; policy and guidelines; public engagement. The identification of >20 genes linked to human developmental and childhood degenerative disorders.
Significance: Definitive diagnosis is essential for genetic counselling, prenatal screening and postnatal management.
Beneficiaries: People with developmental disorders and their families, prospective parents, the NHS and healthcare delivery organisations; public understanding of genetic disorders.
Attribution: Researchers from UoE identified/characterised all the genes described, and their mutation in disease.
Reach: Worldwide: these developmental disorders affect thousands of people. Genetic tests established as a result of the research are provided for people from 35 countries on all continents.
Long-standing research led by Prof. O'Rahilly (Department of Clinical Biochemistry) into the genetic and biochemical basis of severe insulin resistance syndromes, has led to improvements in diagnosis and care of patients internationally. These advances have facilitated revision of existing clinical classifications and implementation of novel diagnostic and management algorithms for these conditions. The clinical applicability of this research was recognised in 2011 by the Department of Health-England who have commissioned a national severe insulin resistance service in Cambridge, with support totalling ~£450,000 per annum.
Eculizumab has transformed quality of life and life expectancy for patients with PNH and led to major economic impacts with global drug sales of $1,134 million in 2012 and to Alexion Pharmaceuticals being worth over $19 billion. PNH is a disabling blood disorder that was previously fatal in 50% of patients but with eculizumab survival is comparable to the normal population as well as returning patients to having a normal quality of life. Research in Leeds led to the introduction of eculizumab in 2007. Eculizumab is now approved for clinical use in over 40 countries and for another life threatening disease, atypical haemolytic uraemic syndrome.
Research at the UCL Institute of Ophthalmology over the last 20 years has resulted in the identification of a large number of novel genes that cause inherited retinal disease. These genes have been incorporated into diagnostic tests, which have allowed molecular diagnosis, improved genetic counselling including pre-natal/pre-implantation diagnosis, better information about prognosis and have informed decisions about which diseases should be prioritised for clinical trials of novel treatments. The identification of these genes has greatly improved understanding of disease mechanisms, an essential prerequisite for developing new treatment approaches such as gene therapy.
Research from the University of Oxford's Clinical Genetics Laboratory initiated the introduction of an upper age limit of 40 years for sperm donors in the UK and internationally and led to increased public awareness of the effect of paternal age in the transmission of inherited disease. Oxford researchers, led by Professor Andrew Wilkie, were the first to describe the exclusively paternal transmission of de novo mutations, in a rare craniofacial disorder called Apert Syndrome; they also showed that the accumulation of such mutations leads to a disproportionate risk of disease transmission with age. By showing that the frequency of mutations increases with paternal age, this research contributed to important changes in clinical practice relating to sperm donation. This has also had a significant cultural impact, as the research and its clinical outcomes have challenged public perceptions of paternal age.