Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Brain scans show early Alzheimer's disease in people with memory problems

08.05.2007
Brain scans of people with mild cognitive impairment (MCI) show signs of early Alzheimer's disease, according to a study published in the May 8, 2007, issue of Neurology®, the scientific journal of the American Academy of Neurology.

For the study, PET scans were performed on the brains of 13 elderly men and women with mild cognitive impairment (MCI) and 14 elderly people without memory problems. The scans were used to measure uptake of PIB, which is an imaging agent that allows doctors to see and measure abnormal protein aggregation growth, otherwise known as amyloid plaque, in the brain. Abnormal protein aggregation growth is a signature of Alzheimer's disease. Until recently, Alzheimer's disease couldn't be officially diagnosed until after death with an autopsy.

The study found people with MCI had as much as 39 percent more PIB uptake in some parts of the brain than people without MCI. And about half of the MCI patients had PIB uptake in the Alzheimer's disease range.

"This pattern of increased PIB in patients with MCI resembles what's seen in Alzheimer's disease and is suggestive of an early Alzheimer's disease process," said study author Juha O. Rinne, MD, PhD, with the University of Turku in Turku, Finland, and Fellow of the American Academy of Neurology. "Our findings are similar to what's seen in post-mortem studies in which abnormal protein aggregation growth is found in people who had been diagnosed with probable Alzheimer's disease."

Rinne says larger studies and extended follow-up is needed since identifying people with MCI who have abnormal protein aggregation growth will become increasingly important as treatments affecting such plaque amyloid accumulation become available.

Angela Babb | EurekAlert!
Further information:
http://www.aan.com

More articles from Health and Medicine:

nachricht Biofilm discovery suggests new way to prevent dangerous infections
23.05.2017 | University of Texas at Austin

nachricht Another reason to exercise: Burning bone fat -- a key to better bone health
19.05.2017 | University of North Carolina Health Care

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

Im Focus: Using graphene to create quantum bits

In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.

In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

Physicists discover mechanism behind granular capillary effect

24.05.2017 | Physics and Astronomy

Measured for the first time: Direction of light waves changed by quantum effect

24.05.2017 | Physics and Astronomy

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>