technology-news

Study unlocks mysteries about Alzheimer's

Washington, Dec 23 : Scientists have shed light on the three essential puzzles regarding Alzheimer's, a science journal reported.


Using high-resolution functional magnetic resonance imaging (fMRI) in patients with Alzheimer's disease, Columbia University Medical Center (CUMC) researchers have clarified three fundamental issues about Alzheimer's: where it starts, why it starts there, and how it spreads.

The findings could improve early detection of the disease, when drugs may be most effective. The study was published in the online edition of the journal Nature Neuroscience, reports Science Daily.

"It has been known for years that Alzheimer's starts in a brain region known as the entorhinal cortex," said senior co-author Scott A. Small, director of the Alzheimer's Disease Research Center.

"But this study is the first to show in living patients that it begins specifically in the lateral entorhinal cortex, or LEC," he said.

"The LEC is considered to be a gateway to the hippocampus, which plays a key role in the consolidation of long-term memory, among other functions. If the LEC is affected, other aspects of the hippocampus will also be affected," Small added.

The study also shows that, over the time, Alzheimer's spreads from the LEC directly to other areas of the cerebral cortex, in particular the parietal cortex, a brain region involved in various functions, including spatial orientation and navigation.

--IANS (Posted on 23-12-2013)

technology-news headlines

Video games of the future to adapt to players' mood

World's oldest woman's blood hints at lifespan limits

How ravens maintain their social relations

Microbes help understand evolution of human language

Radiation exposure puts astronauts at risk of cognitive impairment: Study

Iceberg larger that island of Guam drifts away from Antarctic glacier

Manned mission to Mars necessary for our species to survive, says NASA chief

Gene therapy helps reverse loss of memory in mice suffering from Alzheimer's

New technology helps detect when drivers are about to nod off

Technology to catch dozing drivers on the go

This space selfie not to be missed!

Mysterious 'duck' sound came from rare antarctic whales

Quick Links: Goa | Munnar | Pondicherry | Free Yearly Horoscope '2014

Comments

Your e-mail:


Your Full Name:


Type verification image:
verification image, type it in the box

Message:

Back to Top