2010 IoN News Archive
- Professor Alan Thompson elected as Fellow of the American Academy of Neurology
- Michael J. Fox Foundation awards IoN researcher grant to advance Parkinson's research.
- Traces of the past: computer algorithm ‘reads’ memories
- Professor Lees awarded first Lord Brain Memorial Lecture
- Award for Professor Chris Frith
- Professor John Duncan appointed as NIHR Senior Investigator
- Queen Square Symposium success
- IoN brings the scientific method to London primary schools
- Robot trainer to benefit stroke patients
- Researchers to study how the brain 'rewires itself'
- St Peter's Medal for Professor Clare Fowler
- Elections to the Academy of Medical Sciences Fellowships announced
- New website to help stroke survivors learn to read again
- Queen's Birthday Honours
- Brain study reveals that agreement is rewarding
- Wellcome Success
- Win for IoN at Shape of Science Symposium
- Research shows that two heads are better than one
- Lizard venom offers hope for Parkinson’s disease patients
- Epilepsy prizes
- Developing a cell library resource for dementia research
- Stents may double the risk of stroke in patients over 70
- Scientists identify link between introspection and brain structure
- IoN scientist lands £329k funding boost from dementia research charity.
- Study results consistent with earlier estimates of vCJD prion prevalence in Britain
- Parkinson's UK Fellowship Award
- Award for Professor Lees
- 2010-11 IoN PhD Studentship Round Now Open
- New brain imaging tests to track Huntington’s
- World-leading scientist secures funding for gene research
- Fighter pilots' brains are ‘more sensitive
- Alzheimer’s changes detectable in healthy elderly
- IoN Student wins Santander Formula One Scholarship
- New hope for cluster headache sufferers
- Prestigious European research grant awarded
- New centre brings hope to patients with muscle wasting diseases
- Prestigious stroke program grant awarded
- A role for astrocytes in learning and memory?
New brain imaging tests to track Huntington’s
3 December 2010
A range of new clinical, functional, and neuroimaging tests developed by researchers in the Department of Neurodegenerative Disease make it possible to track the progression of Huntington’s disease long before noticeable symptoms appear.
The new tests provide useful biomarkers that could be used in future trials to detect the effectiveness of potential disease-modifying treatments within a short time period. Published online in The Lancet Neurology, the findings are the first to show quantifiable changes across a broad range of neuroimaging and clinical measures in presymptomatic individuals over just one year.
Trials of potential disease-modifying treatments for Huntington’s disease are not far off, but sensitive and reliable biomarkers of disease progression need to be established to test potential treatments early in the disease course, when they are most likely to be effective at delaying or preventing disease onset. Current clinical rating scales lack sensitivity and require long observation periods to show definitive change.
The TRACK-HD longitudinal observational study was designed to detect very early biomarkers of change by comparing a range of new assessment techniques including advanced brain imaging (3T MRI) and cognitive and quantitative motor tests, with the aim of identifying the best assessments to be used in clinical trials of potential treatments. 366 individuals from Canada, France, the Netherlands, and the UK were enrolled—120 presymptomatic carriers of the expanded Huntington’s disease gene (preHD), 123 patients with early HD, and 123 non-expanded Huntington’s disease gene carrier controls.
In 2009, Sarah Tabrizi from UCL’s Institute of Neurology (Department of Neurodegenerative Disease) , and colleagues identified a number of sensitive biomarkers in presymptomatic Huntington’s disease gene carriers from the baseline TRACK-HD analysis, including significant changes in whole-brain volume, regional grey and white matter differences, and impairment in a range of motor and oculomotor tasks, and cognitive and neuropsychiatric dysfunction.
In this study, they report the 12-month follow-up of patients from the TRACK-HD study with the goal of establishing which of the biomarkers previously identified are most sensitive to disease changes over time.
They conclude: “In our follow-up of the TRACK-HD cohort, we have identified a range of potential clinical endpoints sensitive to disease progression over just 12 months in premanifest and early Huntington’s disease. Our study shows the feasibility of rapidly obtaining reliable quantifiable endpoints that are effective over short periods, across multiple clinical sites, and consequently shows important potential for future therapeutic trials in premanifest and early Huntington’s disease.”
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Reference: The Lancet Neurology, Early Online Publication, 2 December 2010. doi:10.1016/S1474-4422(10)70276-3
Biological and clinical changes in premanifest and early stage Huntington's disease in the TRACK-HD study: the 12-month longitudinal analysis
Sarah J Tabrizi, Rachael I Scahill, Alexandra Durr, Raymund AC Roos, Blair R Leavitt, Rebecca Jones, G Bernhard Landwehrmeyer, Nick C Fox, Hans Johnson, Stephen L Hicks, Christopher Kennard, David Craufurd, Chris Frost, Douglas R Langbehn, Ralf Reilmann, Julie C Stout
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