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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.
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).
Research by Professor David Brook on inherited disorders has made a major contribution to the human genetics field. The work involved gene identification and mutation detection for genotype/phenotype correlation analysis in patients, which has led to the development of diagnostic tests for inherited conditions including myotonic dystrophy type 1 (DM1), Holt-Oram Syndrome (HOS), and campomelic dysplasia (CD). The tests have benefitted patients in the UK and throughout the rest of the world and in many cases they have been used as the definitive diagnostic measure. The assays developed have also been used in affected families for prenatal diagnosis to enable informed reproductive decisions.
Genetic skeletal diseases (GSDs) are an extremely diverse and complex group of genetic diseases that affect the development of the skeleton. Although individually rare, as a group of related genetic diseases they have an overall prevalence of at least 1 per 4,000 children, which extrapolates to a minimum of 225,000 people in the European Union. This burden in pain and disability leads to poor quality of life and high healthcare costs. GSDs are difficult diseases to diagnose and there are currently no treatments, therefore, arriving at a confirmed diagnosis is vital for clinical management, psycho-social support and genetic counselling.
Research conducted at the University of Manchester (UoM) has had a major influence on establishing the correct diagnosis of specific GSDs by the discovery of causative genes and mutations and the subsequent development of accurate and reliable DNA testing protocols. This has significantly improved both accuracy of, and access to, genetic testing in the UK, Europe and worldwide.
Research into the genetic causes of Parkinson's disease by Professor Nick Wood's group at the UCL Department of Molecular Neuroscience, describing the mutations in the gene LRRK2, have led to the development of a new genetic test which is now available to patients and their families. This benefits them by providing a precise diagnosis, and an understanding of the risk of disease to relatives. The research has provided new insight into patterns of Parkinson's disease in particular ethnic groups, and given rise to improved public understanding and high profile philanthropy. This discovery has also opened up a new area of research into disease-modifying treatments in Parkinson's disease within the pharmaceutical industry, leading to new drug candidates.
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.
Research at the UCL School of Pharmacy has positively influenced healthcare in startle disease/hyperekplexia, a rare disease that affects humans and several animal species, including dogs, horses and cattle. The identification and functional characterisation of mutations in genes involved in human startle disease by researchers at the School has improved genetic diagnostics and patient care. Our research on startle disease in cattle and dogs has also led to new non- invasive diagnostic tests that have alleviated animal suffering and reduced negative economic impacts on farmers. Overall, our findings have been translated into tangible benefits for the human and animal populations affected by this disease and have changed the way in which the disease is diagnosed and treated. We have also significantly increased the awareness of this rare disorder by communicating with academics, healthcare and veterinary professionals, and the general public.
Basic molecular genetic research undertaken over the last 20 years by UCL Cardiovascular Genetics has had a significant impact on the identification and treatment of patients with familial hypercholesterolaemia (FH). We have developed DNA testing methods in the three genes currently known to cause FH and have established DNA diagnostic protocols which are now in wide use throughout the UK. As a direct consequence of our work, we estimate that up to 3,000 FH patients in the UK have had their diagnosis of FH confirmed by a DNA test. Our work led to the National Institute of Health and Clinical Excellence (NICE) in 2008 strongly recommending DNA and cascade testing and early treatment with high intensity statins, and furthermore, the inclusion of FH checks in the NHS's Vascular Checks programme.
Over the past decade our research findings have impacted on the diagnosis and treatment of patients with inherited cardiomyopathies. Our work on risk stratification in patients with hypertrophic cardiomyopathy forms the basis for international guidelines on the use of implantable cardioverter defibrillators. Our research in patients with arrhythmogenic right ventricular cardiomyopathy has led to the development of a new international standard for the diagnosis of disease in patients and relatives. We have contributed to national and European guidelines on genetic testing in these conditions. We have also been influential in changing national policies, service design, and provision of care for inherited heart muscle disease.
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.