Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New Study Identifies Link between Alzheimer’s Disease Biomarkers in Healthy Adults

02.12.2008
A study published in the November issue of the Journal of Alzheimer’s Disease provides an insight into normal, physiological levels and association between proteins involved in development of Alzheimer’s disease.

A group of scientists and physicians from the University of Washington and Puget Sound Veterans’ Affairs Health Care System in Seattle, in collaboration with groups from the University of Pennsylvania and the University of California San Diego, performed a study in cognitively normal and generally healthy adults, from young to old (age range 21-88 years), of both genders, measuring levels of different brain-derived molecules associated with Alzheimer’s disease.

Investigators determined that cerebrospinal fluid (CSF) levels of apolipoprotein E (apoE), one of the most important proteins involved in transfer of fatty substances between different brain cells, are highly correlated with the levels of proteins known to be involved in development of Alzheimer’s disease, amyloid precursor protein (APP) and tau.

While many studies have previously shown that apoE gene is very important for Alzheimer’s disease development, the connection between apoE protein and other relevant CSF markers in healthy adults was not known. Although this type of study cannot establish causal associations, the results strongly suggest that the CSF levels of apoE may explain a significant proportion of the levels of APP- and tau-related biological markers in the healthy human brain, indicating a strong physiological link between apoE, APP and tau. In other words, the study points to a possibility that modulation of the levels of apoE may affect the levels of APP and tau in the brain.

Furthermore, the study has shown that people who have a “beneficial” genetic form of apoE (so-called APOE2), which is associated with lower risk of Alzheimer’s disease, have lower CSF levels of beta-amyloid peptide 42, a molecule implicated in development of Alzheimer’s disease plaques. This finding may explain some of the basis for the known protective effects of the APOE2 observed in large population studies.

Dr. Simona Vuletic, Northwest Lipid Metabolism and Diabetes Research Laboratories, University of Washington School of Medicine, Seattle, commented, “Understanding the associations between these important molecules in the brain of cognitively normal, healthy people will help us develop better strategies not only for diagnosis, but possibly also better prevention and treatment for Alzheimer’s disease. This study also provides baseline data and an opportunity to understand how these normal relationships change, leading to the disease.”

Astrid Engelen | alfa
Further information:
http://www.iospress.nl
http://www.j-alz.com

More articles from Studies and Analyses:

nachricht Europe’s Demographic Future. Where the Regions Are Heading after a Decade of Crises
10.08.2017 | Berlin-Institut für Bevölkerung und Entwicklung

nachricht Scientists reveal source of human heartbeat in 3-D
07.08.2017 | University of Manchester

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

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

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

Engineering team images tiny quasicrystals as they form

18.08.2017 | Physics and Astronomy

Researchers printed graphene-like materials with inkjet

18.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>