Health Poor Sense Of Smell Could Be Early Sign Of Parkinson's

16:56  12 september  2017
16:56  12 september  2017 Source:   Medical Daily

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What is normal? Your sense of smell can be changed by a cold, flu or a stuffy nose, but it should come back after you are better. The current theory (so-called Braak's hypothesis) is that the earliest signs of Parkinson ' s are found in various parts of the nervous system and brain, in particular the olfactory

Researchers suggest that a poor sense of smell may be an early sign of Parkinson ' s disease. A sniff test could one day predict the risk of Parkinson ' s up to 10 years before diagnosis, researchers suggest, after linking a poor sense of smell in later life with increased risk of the disease.

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When it comes to our five senses, our ability to smell usually gets forgotten unless we come into contact with something especially unpleasant. However, new research suggests this underappreciated sense, or rather an impairment of it, could be used to help identify Parkinson’s disease in patients up to 10 years before symptoms, such as trembling and stiffness, develop.

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Poor Sense Of Smell Could Be Early Sign Of Parkinson ' s Medical Daily 23:57 7-Sep-17. Global Parkinson ' s Disease Drugs Market 2017-2022 - Increasing Funding Support & Research… PR Newswire (Press Release) 20:56 7-Sep-17.

Poor Sense Of Smell Could Be Early Sign Of Parkinson ' s . Tap Water Could Be A Major Tool Against Alzheimer's. New research suggests that high amounts of lithium in drinking water may reduce risk of developing dementia.

In a study now published online in Neurology, researchers said they've designed a test that may help to measure someone's sense of smell, which could then lead to earlier diagnosis and treatment. In tests, they discovered the link between poor smell and Parkinson's was also greater in men, though they don't know why. Parkinson's is a neurodegenerative brain disease with no cure, and we're also not sure what causes it, according to the National Parkinson’s Foundation.

A smell test may help identify individuals at greatest risk for Parkinson's disease. © Photo Courtesy of Pixabay A smell test may help identify individuals at greatest risk for Parkinson's disease.

"Earlier studies had shown prediction of Parkinson's disease about four to five years after the smell test was taken," said study author Honglei Chen in a recent statement. "Our study shows that this test may be able to inform the risk much earlier than that."

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Source: Michigan State University. A new study provides further evidence that a simple scratch-and-sniff test could predict Parkinson ’ s disease even earlier than previously thought. “We found no statistical significance for a link between poor sense of smell and Parkinson ’ s disease in blacks, but

New research suggests a diminishing ability to smell soap, cinnamon or gasoline could be an early indicator of the onset of Parkinson ' s disease(Credit After labeling each participant with a sense of smell that was either poor , medium or good, their health was monitored for the following decade.

For the research, the team looked at 2,462 people with an average age of 75 who took a scratch and sniff test where they were asked to identify common scents such as lemon, gasoline, onion, and cinnamon, Healthline reported. The volunteers were then followed for an average of 10 years.

Over the course of the decade, individuals who did poorly on the smell test were more likely to have developed Parkinson’s disease than those with a good or medium sense of smell. This correlation seemed to be strongest for white men when compared to black men. These results remained even after the team accounted for other factors that can increase risk, such as smoking, drinking coffee, and history of serious head injury.

Although there is no cure for the disease, there are a number of treatments that minimize symptoms, the most common of which include: trembling hands, arms, legs, face, and jaw; stiffness in the arms, legs, or body; slowed movement; and poor balance and coordination. There is also no lab test to diagnose the condition, and doctors don't usually spot it until symptoms appear. However, this can be several years after the disease has already begun to cause neurological damage, which can make treatment more difficult, Medline Plus reported.

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When somebody starts losing their sense of smell , it could be one of the first signs of Parkinson ' s or Alzheimer's disease, or another Decreased sense of smell may indicate early dementia Loss of sense of smell could help to detect onset My poor dad just died as a result of heart attack or stroke.

Your sense of smell can be changed by a cold, flu or a stuffy nose, but it should come back after Sometimes writing can change as you get older, if you have stiff hands or fingers or poor vision, but Straining to move your bowels can be an early sign of Parkinson ’ s disease and you should talk to

The team emphasized that not everyone who scored low on the smell test went on to develop the disease. Still, the numbers were strong enough to suggest that the correlation was due to more than chance, and the researchers would like to further explore what may cause this connection.

Source: Chen H, Shrestha S, Huang X, et al. Olfaction and incident Parkinson disease in US white and black older adults. Neurology . 2017

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