(CBS/AP) Could a simple eye test could be the key to early diagnosis of Alzhiemer's disease? Preliminary research presented at an international conference on Alzheimer's in France suggests that it just might.PICTURES - Alzheimer's: 13 facts you need to knowThe test involves photographing blood vessels in the retina, the light-sensitive layer at the back of the eye. Most eye doctors have the cameras needed to take the images, although the test requires the use of a special computer program, said the preliminary study's lead author, Shaun Frost of Australia's national science agency, CSIRO. For the study, researchers compared retinal photos of 110 healthy people, 13 people with Alzheimer's, and 13 others a form of "pre-Alzheimer's known as mild cognitive impairment. The widths of certain blood vessels in those with Alzheimer's differed from vessels in the others. More study is planned on larger groups to see how accurate the test might be, Frost said. But Dr. Lee Goldstein, an … [Read more...] about CBS News Logo Eye test for Alzheimer’s could revolutionize diagnosis: How does it work?
Test for dementia
(CBS/AP) Can a simple blood test detect Alzheimer's disease? PICTURES: Alzheimer's disease: 7 things that raise your risk Australian scientists say they're closing in on one. Their test measures plaque is in people's brains - a telltale marker for Alzheimer's. And they hope if it proves reliable in even more studies, that one day it can give people with memory problems a clear idea whether they have the disease. Other Alzheimer's blood tests are in development and a few are even used in research settings. But only the Australian test has been validated against brain scans and other diagnostic tests, said Maria Carrillo, senior director of medical and scientific relations for the Alzheimer's Association. She said the results, reported Wednesday at the Alzheimer's Association International Conference in Paris, "give us hope that we may be able to use a blood test in the near future." But she cautions that doesn't mean next year. More than 5.4 million Americans and 35 million people … [Read more...] about CBS News Logo Dementia researchers develop blood test for Alzheimer’s
Modern medicine has given us a multitude of test and treatment options, but sometimes it is hard to know if the test your doctor is offering is truly needed. Since 2012, the Choosing Wisely campaign has coordinated with leading medical specialty societies to identify medical procedures and treatments that are commonly overused, and may not be backed by evidence that shows they help. On Feb. 21, the campaign released a new list of 90 common tests, procedures and medication therapies that are not always necessary. Here are 11 of their findings. To see the full list, visit the Choosing Wisely website . … [Read more...] about CBS News Logo 11 medical tests, treatments you may not needInduction of labor and C-sectionsFeeding tubes for dementia patientsAnnual Pap tests CT scans for kids’ head injuriesEchocardiographic stress testsMedication for geriatric diabetesEEGs for headachesTherapy for infant acid refluxMedications for kids’ respiratory infectionsLyme disease testing for achesPET/CT screening for cancer
Mistrust of other people may put you at higher risk for dementia, according to a new study published in the journal Neurology. The study looked at the impact cynicism may have on long-term cognitive health. Cynicism is defined as the belief that people are generally motivated by their own self interest and promotion and cannot be trusted. For the study on 1,449 people, researchers at the University of Eastern Finland in Kuopio administered tests to screen for dementia, as well as questionnaires to gauge each person's level of cynicism. Out of that number, 622 people completed two tests for dementia, with the second one eight years after the start of the study. The average age of study participants was 71. When taking the cynicism questionnaire people responded to statements such as "I think most people would lie to get ahead" and "It is safer to trust nobody." After scoring the questionnaire participants were divided into groups of low, moderate and high levels of cynicism. A total … [Read more...] about CBS News Logo Persistent cynicism may be linked to dementia
Donald Merkel was diagnosed with Lewy body dementia three years ago. He has a continuous hand tremor that has taken away his ability to work on his beloved vintage Corvettes. But that’s not the only thing the disease has taken from this Pennsylvania man. Merkel’s wife Kay has watched the disorder rob his memory. It also causes hallucinations and can lead to Parkinson’s disease. “It’s devastating, really,” she told CBS News. Lewy body dementia affects about 1.5 million people in the U.S., making it the second most common type of dementia after Alzheimer’s disease. Actor Robin Williams is said to have suffered with Lewy body dementia before taking his own life in 2014. His widow, Susan Schneider Williams, referred to the disease as “the terrorist inside my husband’s brain.” Medical researchers are now working on new treatment options for Lewy body dementia, including testing the first drug developed to treat it. Don … [Read more...] about CBS News Logo Experimental drug being tested for Lewy body dementia