Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Only women with Western Swedish breast cancer gene run higher risk of ovarian cancer

06.04.2010
Previous research has shown that women with breast cancer are more likely than other women to develop ovarian cancer, but now researchers from the Sahlgrenska Academy at the University of Gothenburg, Sweden, have shown that actually only women with a known Western Swedish mutation behind hereditary breast cancer run this increased risk of ovarian cancer.

The study, published in the journal Acta Oncologica, shows that the increased risk of ovarian cancer is linked to a known mutation in women with breast cancer in Western Sweden.

The research team had previously identified a special mutation in the breast cancer gene BRCA1 originating with some distant forefather on Sweden's West Coast many generations back. The mutation is often seen in families where three or more members develop breast and/or ovarian cancer and where someone under 50 is diagnosed with breast and/or ovarian cancer.

"Our previous research showed that Western Swedish women with breast cancer are more likely to develop ovarian cancer than women diagnosed with breast cancer in other parts of the country," says Per Karlsson, associate professor from the Department of Oncology and leader of the research team at the Cancer Genetics Clinic at Sahlgrenska University Hospital.

Most ovarian tumours are benign, especially in younger women, but more than 700 women in Sweden are diagnosed with ovarian cancer each year, some 30-40 of them as a result of the Western Swedish BRCA1 mutation. Now the researchers have shown that the increased risk of ovarian cancer among women diagnosed with breast cancer is due solely to this known mutation in the breast cancer gene BRCA1. Their research results reveal that women diagnosed with breast cancer who do not have this mutation do not run an increased risk of ovarian cancer.

"This means that we can focus our investigations and screening on families where many relatives have had breast and ovarian cancer," says Karlsson.

As this elevated risk of ovarian cancer affects only a very small proportion of women with breast cancer, the next step is to provide patients with clearer information about the risks associated with breast cancer when visiting the doctor.

"There is also research under way in the cancer genetics field which may mean that, in future, patients can receive more specific screening, and that cancer patients can expect a more personalised treatment," says Karlsson, who believes that this work could lead to fewer screenings and fewer side-effects from cancer treatments.

BREAST CANCER
Around 7,000 people in Sweden develop breast cancer each year, and it is the most common form of cancer in Swedish women. Of these cases, an estimated 100-150 are women diagnosed with breast cancer due to the Western Swedish BRCA1 mutation. Breast cancer can be caused by hormonal and hereditary factors, among others. It affects mainly elderly women and is uncommon among younger women. Treatments include surgery, radiotherapy, hormone therapy and chemotherapy. More and more breast cancer patients in Sweden are managing to beat the disease, and almost three-quarters now survive.
For more information, please contact:
Per Karlsson, associate professor at the Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, and consultant at Sahlgrenska University Hospital, tel: +46 31 342 86 52, e-mail: per.karlsson@oncology.gu.se
Journal: Acta Oncologica
Title of article: BRCA1 gene mutations may explain more than 80% of excess number of ovarian cancer cases after breast cancer - a population based study from the Western Sweden Health Care region

Authors: Zakaria Einbeigi, Charlotta Enerbäck, Arne Wallgren, Margareta Nordling and Per Karlsson

Helena Aaberg | idw
Further information:
http://informahealthcare.com/doi/abs/10.3109/02841860903521095
http://www.gu.se/

Further reports about: BRCA1 breast cancer gene mutation ovarian cancer ovarian tumours

More articles from Life Sciences:

nachricht Barium ruthenate: A high-yield, easy-to-handle perovskite catalyst for the oxidation of sulfides
16.07.2018 | Tokyo Institute of Technology

nachricht The secret sulfate code that lets the bad Tau in
16.07.2018 | American Society for Biochemistry and Molecular Biology

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Subaru Telescope helps pinpoint origin of ultra-high energy neutrino

16.07.2018 | Physics and Astronomy

Barium ruthenate: A high-yield, easy-to-handle perovskite catalyst for the oxidation of sulfides

16.07.2018 | Life Sciences

New research calculates capacity of North American forests to sequester carbon

16.07.2018 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>