Group items tagged

A £5m project has been launched to introduce new blood tests in the National Health Service (NHS) that can diagnose Alzheimer's disease. The blood tests could be available on the NHS within five years and they can diagnose the disease earlier and more accurately than current methods, experts have said. Alzheimer's Research UK, the Alzheimer's Society and the National Institute of Health and Care Research have jointly launched the project. Susan Kohlhaas, Executive Director of Research and Partnerships at Alzheimer's Research UK, said that the NHS doesn't possess the "required levels of diagnostic infrastructure" to cope with the "growing demand" for dementia diagnosis. "Low-cost tools like blood tests that are non-invasive and simpler to administer than current gold standard methods are the answer to this," she added.

Early detection and treatment of Alzheimer's disease require the use of dependable and cost-effective screening technologies. Researchers at Sweden's Karolinska Institutet have revealed that the level of tau, a protein that plays a vital role in the development of severe dementia, is associated with a kind of sugar molecule in the blood. The study, which is published in Alzheimer's & Dementia, can pave the way for a simple screening procedure able to predict onset ten years in advance. "The role of glycans, structures made up of sugar molecules, is a relatively unexplored field in dementia research," says the study's first author Robin Zhou, medical student and affiliated researcher at the Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet. "We demonstrate in our study that blood levels of glycans are altered early during the development of the disease. This could mean that we'll be able to predict the risk of Alzheimer's disease with only a blood test and a memory test." In Alzheimer's disease, the neurons of the brain die, which is thought to be a result of the abnormal accumulation of the proteins amyloid beta and tau. Clinical trials for Alzheimer's drugs show that treatment should commence early in the pathological process, before too many neurons have died, to reverse the process before it is too late.

Dementia is an extremely deceptive disease that develops slowly and may go unnoticed in people, said NHS mental health director Claire Murdoch, while urging people to look out for the vital warning signs of this condition among family and friends over Christmas. Common early symptoms of dementia may include emotional change, forgetfulness, difficulty concentrating, struggling to follow a conversation or find the right word, being confused about time and place, the health service has cautioned. An increasing number of people have been diagnosed with dementia in England since the start of the pandemic, following a drive by the NHS England to increase diagnosis rates. In November 2023, NHS staff diagnosed 463,797 people aged over 65 with dementia, up more than 41,000 compared to the same period last year, according to the figures revealed by the health service.