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Memory Issues Author: Staff Editor Last Updated: Sep 7, 2017 - 10:06:33 PM



Protein in Urine Linked to Increased Risk of Memory Problems, Dementia

By Staff Editor
Dec 15, 2016 - 11:01:44 AM



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(HealthNewsDigest.com) - MINNEAPOLIS – People who have protein in their urine, which is a sign of kidney problems, may also be more likely to later develop problems with thinking and memory skills or even dementia, according to a meta-analysis published in the December 14, 2016, online issue of Neurology®, the medical journal of the American Academy of Neurology.

The researchers looked at all available studies on kidney problems and the development of cognitive impairment or dementia.

“Kidney dysfunction has been considered a possible risk factor for cognitive impairment or dementia,” said Kay Deckers, MSc, of Maastricht University in the Netherlands, author of the systematic review and meta-analysis. “Chronic kidney disease and dementia share many risk factors, such as high blood pressure, diabetes and high cholesterol, and both show similar effects on the brain, so they may have shared vascular factors or there may even be a direct effect on the brain from kidney problems.”

A total of 22 studies on the topic were included in the systematic review. Five of the studies, including 27,805 people, were evaluated in the meta-analysis on protein in the urine, also called albuminuria or proteinuria. The analysis showed that people with protein in the urine were 35 percent more likely to develop cognitive impairment or dementia than people who did not have protein in their urine.

For another marker of kidney function, estimated glomerular filtration rate, the results were mixed and did not show an association. For three other markers of kidney function, cystatin C, serum creatinine and creatinine clearance, no meta-analysis could be completed because the few studies available did not use the same methods and could not be compared.

“Protein in the urine was associated with a modestly increased risk of cognitive impairment or dementia,” Deckers said. “More research is needed to determine whether the kidney problems are a cause of the cognitive problems or if they are both caused by the same mechanisms.”

The study was supported by the In-MINDD (Innovative Midlife Intervention for Dementia Deterrence) project funded by the European Union’s Framework Program Seven.

To learn more about the brain, visit www.aan.com/patients.

The American Academy of Neurology is the world’s largest association of neurologists and neuroscience professionals, with 30,000 members. The AAN is dedicated to promoting the highest quality patient-centered neurologic care. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as Alzheimer’s disease, stroke, migraine, multiple sclerosis, concussion, Parkinson’s disease and epilepsy.

For more information about the American Academy of Neurology, visit http://www.aan.com or find us on Facebook, Twitter, LinkedIn and YouTube.

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