“In very elderly people with good cognition, higher levels of C-reactive protein, which is related to inflammation, are associated with better memory,” said study author Jeremy M. Silverman, PhD, with Mount Sinai School of Medicine in New York. “Our results found that the higher the level of this protein in the study participant, the lower the risk for dementia in their parents and siblings.”
For the study, researchers identified 277 male veterans age 75 and older and free of dementia symptoms. They were given a test that measured levels of the protein. Next, the group was interviewed about 1,329 parents and siblings and whether they had dementia. A total of 40 relatives from 37 families had dementia. A secondary, independent group of 51 men age 85 and older with no dementia symptoms were given an interview about 202 relatives for dementia. Nine of the relatives had dementia.
Study investigators found that participants who had higher amounts of the protein were more than 30 percent less likely to have relatives with dementia. Similar results were found in the secondary group. Since the protein levels were not associated with years of education, marital status, occupation and physical activity, these factors could not account for the lower risks seen.
“This protein is related to worse cognition in younger elderly people. Thus, for very old people who remain cognitively healthy, those with a high protein level may be more resistant to dementia,” said Silverman. “Our study shows that this protection may be passed on to immediate relatives.”
The study was supported by the National Institute on Aging, United States Department of Veterans Affairs, the Berkman Charitable Trust and the Alzheimer’s Association.
To learn more about dementia, visit http://www.aan.com/patients.
The American Academy of Neurology, an association of more than 25,000 neurologists and neuroscience professionals, 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, brain injury, Parkinson’s disease and epilepsy.
For more information about the American Academy of Neurology, visit http://www.aan.com
Rachel L. Seroka | American Academy of Neurology
Obstructing the ‘inner eye’
07.07.2017 | Friedrich-Schiller-Universität Jena
Drone vs. truck deliveries: Which create less carbon pollution?
31.05.2017 | University of Washington
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
21.07.2017 | Event News
19.07.2017 | Event News
12.07.2017 | Event News
21.07.2017 | Earth Sciences
21.07.2017 | Power and Electrical Engineering
21.07.2017 | Physics and Astronomy