Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Common osteoporosis treatment may help men with prostate cancer suffering from bone loss

27.02.2006


Men with prostate cancer who experience bone loss from cancer treatment could benefit from a weekly oral therapy commonly given to women with osteoporosis, according to a study presented by the University of Pittsburgh Medical Center (UPMC) at the American Society of Clinical Oncology Prostate Cancer Symposium, Feb. 24 to 26 at the San Francisco Marriott. The study, abstract number 139, will be featured in a press program at the meeting, 7:30 a.m., Sunday, Feb. 26.



"In previous studies, we have determined that men who receive androgen deprivation therapy, a frequently used treatment for prostate cancer, suffer from severe drops in bone mass and are at an increased risk for fracture," said study principal investigator Susan Greenspan, M.D., professor of medicine, University of Pittsburgh and director, Osteoporosis Prevention and Treatment Center, UPMC. "In an attempt to mitigate these effects, we gave men using this therapy a once-weekly oral agent called alendronate that is commonly used to treat osteoporosis. We found that men who received it had significantly increased bone mass compared to those who did not receive the therapy."

The study included 112 men with prostate cancer with an average age of 71. After an average of two years androgen deprivation therapy for prostate cancer, only 9 percent of the men had normal bone mass, while 52 percent had low bone mass and 39 percent developed osteoporosis. To study the effect of alendronate on these men, they were randomized into two groups to receive either alendronate once a week through an orally administered pill or a placebo. At one year follow-up, bone mass in the spine and hip increased significantly in the men treated with alendronate, 4.9 percent and 2.1 percent respectively. By comparison, men in the placebo group had significant losses of bone mass in the spine and hip, 1.3 percent and .7 percent respectively. In addition, the therapy was well-tolerated and easily administered.


"Since most men with prostate cancer remain on androgen deprivation therapy for an indefinite amount of time, bone loss can be a serious and long-term side effect from therapy," said Joel Nelson, M.D., co-author of the study and professor and chairman of the department of urology at the University of Pittsburgh School of Medicine. "With more than 230,000 men being diagnosed with prostate cancer each year, the addition of alendronate therapy could help to prevent the incidence of debilitating bone fractures."

Androgen deprivation therapy works by depriving the body of testosterone, an androgen hormone that increases the growth of prostate tumors. However, testosterone also is essential to maintaining bone mass in men. While doctors have been using this type of therapy for more than a decade to treat men with late-stage metastatic prostate cancer, they have begun using it more recently in men with earlier-stage disease and for longer periods of time; this increased exposure increases the risk for developing osteoporosis.

"These results suggest to us that men who are under treatment for prostate cancer should be encouraged to get a bone density test and that those at risk could benefit greatly from bone-preserving therapy," said Dr. Greenspan.

Clare Collins | EurekAlert!
Further information:
http://www.upmc.edu

More articles from Health and Medicine:

nachricht Nanoparticles as a Solution against Antibiotic Resistance?
15.12.2017 | Friedrich-Schiller-Universität Jena

nachricht Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University

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: First-of-its-kind chemical oscillator offers new level of molecular control

DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.

Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Engineers program tiny robots to move, think like insects

15.12.2017 | Power and Electrical Engineering

One in 5 materials chemistry papers may be wrong, study suggests

15.12.2017 | Materials Sciences

New antbird species discovered in Peru by LSU ornithologists

15.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>