Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Low testosterone levels in post-menopausal women associated with heart disease

10.07.2007
Post-menopausal women with lower levels of testosterone are more likely to suffer from heart disease. Research, published in the June edition of the European Journal of Endocrinology, shows that higher testosterone levels in post-menopausal women may have a protective effect against cardiovascular disease.

Researchers led by Dr Erik Debing at the Free University of Brussels in Belgium examined the levels of sex hormones in natural post-menopausal women (i.e. those not taking hormone replacement therapy) and their association with the presence of atherosclerosis. Atherosclerosis is a condition where the arteries become hardened and blocked by the deposition of substances such as cholesterol. It is commonly seen as a precursor to heart disease. The research team examined 56 post-menopausal women who had atherosclerosis of the carotid artery (the artery that supplies blood to the head and neck) and compared the levels of sex hormones in their blood with 56 age-matched controls.

While they found no significant difference between the levels of other sex hormones, women with atherosclerosis had significantly lower testosterone levels than women who were free from the disease (0.23±0.12 vs. 0.31±0.20 µg/l). Even after the researchers had controlled for other risk factors associated with heart disease (such as diet, high blood pressure, smoking and diabetes), the relationship between low testosterone levels and atherosclerosis remained strong.

Although the hormone testosterone is usually associated with men, women also produce some testosterone, mainly from their ovaries and adrenal glands. Testosterone performs many essential functions in the bodies of both men and women including maintaining muscle strength and bone density. While statistics show that the risk of heart disease increases in post-menopausal compared to pre-menopausal women, the reasons for this have remained unclear.

Traditionally seen as a male disease, heart disease is now one of the leading causes of death in post-menopausal women in Europe. This is the first time that a case-control study has been carried out, directly comparing the levels of sex hormones in post-menopausal women with and without atherosclerosis of the carotid artery. Further work is now required to enhance our understanding of the mechanisms behind this relationship and the implications for health provision.

Researcher Dr Erik Debing said:

“This is the first time that a case-control study has found that post-menopausal women with athlerosclerosis have lower testosterone levels. Athlerosclerosis is the main precursor to heart disease, one of the major causes of death in post-menopausal women. Our work suggests that higher levels of testosterone may have a protective role against atherosclerosis in women who have undergone the menopause.

This research represents an important step forward in our understanding of the causes of atherosclerosis and will allow us to develop more effective treatments and advice. We now need to carry out further research to examine why low testosterone levels in post-menopausal women may predispose them to develop cardiovascular disease.”

Jennie Evans | alfa
Further information:
http://www.endocrinology.org/

More articles from Health and Medicine:

nachricht 'Icebreaker' protein opens genome for t cell development, Penn researchers find
21.02.2018 | University of Pennsylvania School of Medicine

nachricht Similarities found in cancer initiation in kidney, liver, stomach, pancreas
21.02.2018 | Washington University School of Medicine

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: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

Im Focus: Interference as a new method for cooling quantum devices

Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters

Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Researchers invent tiny, light-powered wires to modulate brain's electrical signals

21.02.2018 | Life Sciences

The “Holy Grail” of peptide chemistry: Making peptide active agents available orally

21.02.2018 | Life Sciences

Atomic structure of ultrasound material not what anyone expected

21.02.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>