Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New study shows possible role of SERMs in future menopausal hormone therapy

06.11.2003


New research published this month in the journal Endocrinology highlights a possible safe, future treatment for postmenopausal women. The research, which was conducted by doctors at Laval University in Quebec, Canada, found that EM-652, a selective estrogen receptor modulator (SERM) given in association with an estrogen, may be effective at controlling hot flashes and preventing breast, uterine and ovarian cancer as well as osteoporosis in postmenopausal women.



Additionally, the combination shows promise in potentially helping with brain function and preventing Alzheimer’s disease with no risk or negative effect.

Over the past year, millions of women have become afraid and confused about the risks and benefits of hormone replacement therapy following the results of the Women’s Health Initiative Study (WHI), which found that women on the combination replacement estrogen and progestin have an increased risk (26 percent) of developing breast cancer. In light of these findings, the medical community has worked to determine the best way to treat the symptoms and risks of menopause, while researchers search for alternative therapies for the millions of women who used combination hormones to treat their menopausal symptoms, such as hot flashes. Dr. Fernand Labrie and his colleagues in Quebec, Canada have now demonstrated that the next generation of menopausal therapy may lie in a combination of SERMs and estrogen, with the SERM preventing the potential risk of breast cancer caused by the estrogen.


Through three separate studies on rats, Dr. Labrie and his team sought to validate the promise of EM-652 as a postmenopausal treatment. The researchers treated different groups of rats with EM-652 and estrogen and measured the impact on the mammary gland and uterus. One study examined the effects of 17beta-estradiol, an estrogen and EM-652 alone and in combination.

The findings showed that when administered together, the estrogen was blocked in the mammary gland and uterus, while EM-652 protected bone and decreased serum lipids. Since EM-652 has little or no access to the brain, it should not prevent estrogen from exerting its beneficial effects on hot flashes, memory and cognition and potentially preventing Alzheimer’s disease. At the same time, EM-652 blocks the negative effects of estrogen in the peripheral tissues, including the mammary gland and uterus.

"EM-652 in combination with estrogen may offer a novel approach to treating postmenopausal women," explained Dr. Labrie. "If our findings in rats are duplicated in women, this tissue-specific hormone replacement therapy could meet the most important needs of women at menopause, which include control of hot flashes, improvement of cognitive function and memory, decreased risk of Alzheimer’s disease and, most importantly, the prevention of three serious cancers-breast, ovarian and uterine-as well as bone loss."

Endocrinology is one of four journals published by The Endocrine Society.

Marisa Lavine | EurekAlert!
Further information:
http://www.endo-society.org

More articles from Studies and Analyses:

nachricht The personality factor: How to foster the sharing of research data
06.09.2017 | ZBW – Leibniz-Informationszentrum Wirtschaft

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

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: LaserTAB: More efficient and precise contacts thanks to human-robot collaboration

At the productronica trade fair in Munich this November, the Fraunhofer Institute for Laser Technology ILT will be presenting Laser-Based Tape-Automated Bonding, LaserTAB for short. The experts from Aachen will be demonstrating how new battery cells and power electronics can be micro-welded more efficiently and precisely than ever before thanks to new optics and robot support.

Fraunhofer ILT from Aachen relies on a clever combination of robotics and a laser scanner with new optics as well as process monitoring, which it has developed...

Im Focus: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Fraunhofer ISE Pushes World Record for Multicrystalline Silicon Solar Cells to 22.3 Percent

25.09.2017 | Power and Electrical Engineering

Usher syndrome: Gene therapy restores hearing and balance

25.09.2017 | Health and Medicine

An international team of physicists a coherent amplification effect in laser excited dielectrics

25.09.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>