Physicians may be able to detect and treat Alzheimers Disease (AD) in its earliest stages, when patients are experiencing only mild degrees of cognitive impairment, thanks to new diagnostic criteria proposed by an international group of researchers.
Published in Lancet Neurology, the development of new guidelines was co-led by Dr. Howard Feldman, head of the Div. of Neurology in the University of British Columbias Faculty of Medicine. Feldman, who directs the Clinic for Alzheimers Disease and Related Disorders at Vancouver Coastal Health, co-authored the paper with French researcher Dr. Bruno Dubois and investigators from countries that include Japan, the U.S. and England. Feldman is a member of Vancouver Coastal Health Research Institute (VCHRI).
The proposed criteria are based on examining the structure and function of the brain using advanced brain imaging techniques as well as looking at spinal fluid for the imprint of the disease. Early detection will allow researchers to test vaccines that might be used preventively or to treat fully affected individuals, or other drug treatments that are directed at the earliest stages of the disease the best time to reduce symptoms.
Existing criteria, established in 1984, involve a two-step approach of evaluating functional disability and then looking for a cause, meaning diagnosis and treatment is delayed until patients have significant dementia symptoms. Integrating the profound neurobiological advances of the last 20 years allow for diagnoses based on more than declining functional ability, says Feldman, a senior investigator with the Brain Research Centre (BRC) at UBC Hospital. We now have advanced diagnostic tools distinctive and reliable biological indicators that can be detected before the patient crosses the dementia threshold of disability.
The new criteria the researchers are proposing to the scientific community via the article represent a significant shift and will direct scientists and
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| Contact: Hilary Thomson Hilary.thomson@ubc.ca 604-822-2644 University of British Columbia Source:Eurekalert |