Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Diabetes drug ups risk for bone fractures in older women

11.02.2010
A Henry Ford Hospital study finds women with type 2 diabetes who take a commonly prescribed class of medications to treat insulin resistance may be at a higher risk for developing bone fractures.

After taking a thiazolidinedione (TZD) for one year, women are 50 percent more likely to have a bone fracture than patients not taking TZDs, according to study results. And those at the greatest risk for fractures from TZD use are women older than 65.

"Older women are already at a higher risk of osteoporosis and osteoporosis-related fractures, which might explain why they appeared to be the most affected by TZDs," says study senior author L. Keoki Williams, M.D., MPH, Center for Health Services Research and Department of Internal Medicine at Henry Ford Hospital.

The study – one of the largest groups to examine the longitudinal relationship between TZD use and fractures – appears in this month's issue of The Journal of Clinical Endocrinology & Metabolism.

TZDs such as pioglitazone and rosiglitazone help keep blood glucose levels on target by decreasing insulin resistance and making body tissues more sensitive to insulin's effects. TZDs also cut down on the amount of glucose made by the liver in patients with type 2 diabetes.

But in recent years, TZDs have been linked to bone loss and increasing fracture risk. Complicating matters, type 2 diabetes and insulin use are also associated with an increased risk for fractures.

To determine the relationship between TZD use and fracture risk in patients with type 2 diabetes, Dr. Williams and his colleagues conducted a retrospective study from Jan. 2, 2000 to May 31, 2007 of 19,070 Henry Ford patients. Among the study group, 9,620 were women and 9,450 were men.

During the study period, 4,511 patients had at least one prescription fill for a TZD. The researchers used electronically maintained medical claims data to identify non-traumatic bone fractures. The increased risk in women appeared after approximately one year of TZD use.

The location of the fractures in this group also was unique. Typically, osteoporosis-related fractures involve the vertebra and hip. This study, however, found TZD use in women to be associated with fractures of the upper extremity and distal lower extremity. Similar findings were observed in treated women older than 65, who were shown to have a 70 percent increased risk for developing fractures. Men, regardless of age, were not at an increased risk for fractures.

"Although two recent studies suggest that men may also be at increased risk for fractures after TZD exposure, we did not observe this association for men, despite having nearly equal numbers of men and women in our study," says study co-author Zeina A. Habib, M.D.

African-American race-ethnicity was protective for fractures when compared with other race-ethnic groups, which were predominately Caucasian.

"Fractures are just one of a growing number of problems associated with these medications. Henry Ford and other researchers have previously found that this class of medications also can increase risk of congestive heart failure hospitalization," says Dr. Williams.

Dr. Williams notes that there are other medication options available to treat insulin resistance in patients with type 2 diabetes.

"TZDs may put some patients at increased risk for other health issues, and I encourage patients to talk with their physician about other suitable options," says Dr. Williams. "If the physician feels the patient should be placed on a TZD, routine screening for bone loss and prophylactic therapy to prevent bone loss and fractures may also be needed."

Reference: "Thiazolidinedione Use and the Longitudinal Risk of Fractures in Patients with Type 2 Diabetes Mellitus." The Journal of Clinical Endocrinology & Metabolism.

Funding: Henry Ford Hospital, and grants from the National Heart, Lung and Blood Institute, and the National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health.

Krista Hopson | EurekAlert!
Further information:
http://www.hfhs.org

More articles from Studies and Analyses:

nachricht Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel

nachricht Oxygen loss in the coastal Baltic Sea is “unprecedentedly severe”
05.07.2018 | European Geosciences Union

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: Future electronic components to be printed like newspapers

A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.

The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...

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....

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

A smart safe rechargeable zinc ion battery based on sol-gel transition electrolytes

20.07.2018 | Power and Electrical Engineering

Reversing cause and effect is no trouble for quantum computers

20.07.2018 | Information Technology

Princeton-UPenn research team finds physics treasure hidden in a wallpaper pattern

20.07.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>