Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Blood chromosome differences are linked to pancreatic cancer

24.10.2012
A new study shows that a blood marker is linked to pancreatic cancer, according to a study published today by scientists at the University of Wisconsin Carbone Cancer Center and Mayo Clinic.

First author Dr. Halcyon Skinner, assistant professor of population health sciences at the University of Wisconsin School of Medicine and Public Health, says the study is the first time pancreatic cancer risk has been linked to differences in telomeres' length in blood cells.

"This suggests a new avenue to identify those with pancreatic cancer or those at risk of developing the cancer in the future,'' he says.

Skinner's colleagues at Mayo Clinic took blood samples from more than 1,500 people – 499 of them with a diagnosis of pancreatic cancer and 963 of them cancer-free control subjects. Specifically, the scientists were interested in the length of the telomeres – the end caps on chromosomes – found in white blood cells. They found a direct relationship with the risk of pancreatic cancer: the shorter the telomeres, the more likely a person was to have pancreatic cancer.

Telomeres maintain the stability of genes, and are known to shorten with age as cells divide. People of the same chronological age can have vastly different telomere lengths. In other words, some people's cells can by viewed as biologically older than cells from other people the same age.

"We know that people with many factors that are classically unhealthy also tend to have shorter telomeres. Those who have had stressful lives, exposed to chronic inflammation, have poor glucose control or smoked cigarettes tend to have shorter telomeres, and that can set the stage for genetic damage,'' Skinner explains.

Shortened telomeres in the blood have already been associated with other types of cancer, including colon cancer.

"We found the same relationship with pancreatic cancer, and for the vast majority of our participants, there was a direct linear relationship," he says, "the shorter the telomere, the higher the likelihood of pancreatic cancer."

But because shorter telomere length is also associated with the development of other cancers and other diseases of aging, measurement of telomere length alone is not a specific marker for pancreatic cancer.

Dr. Lisa A. Boardman, of Mayo Clinic, who led the overall study, says that future studies need to address if telomere length and other markers of pancreatic cancer should be combined to create a test that could be used clinically.

Skinner and UW colleagues Ron Gangnon and Kristin Litzelman led the design and data analysis of the study. It is being published in Cancer Epidemiology, Biomarkers and Prevention, a journal of the American Association for Cancer Research.

Skinner's work was supported by the National Institutes of Health (K07 CA109361).

Susan Lampert Smith | EurekAlert!
Further information:
http://www.uwhealth.org

More articles from Life Sciences:

nachricht Nesting aids make agricultural fields attractive for bees
20.07.2017 | Julius-Maximilians-Universität Würzburg

nachricht The Kitchen Sponge – Breeding Ground for Germs
20.07.2017 | Hochschule Furtwangen

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Manipulating Electron Spins Without Loss of Information

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...

Im Focus: The proton precisely weighted

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...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

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....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

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,...

Im Focus: Laser-cooled ions contribute to better understanding of friction

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 –...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

Leipzig HTP-Forum discusses "hydrothermal processes" as a key technology for a biobased economy

12.07.2017 | Event News

 
Latest News

Researchers create new technique for manipulating polarization of terahertz radiation

20.07.2017 | Information Technology

High-tech sensing illuminates concrete stress testing

20.07.2017 | Materials Sciences

First direct observation and measurement of ultra-fast moving vortices in superconductors

20.07.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>