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Aging And Bone Mineral Density

Date:
June 16, 2008
Source:
Canadian Medical Association Journal
Summary:
Older women and men experience increasing rates of hip fracture because of the age-related acceleration in bone loss. Researchers studied a large cohort of Canadians and found that antiresorptive medication attenuates this loss.

Older women and men experience increasing rates of hip fracture because of the age-related acceleration in bone loss. David Goltzman and colleagues studied a large cohort of Canadians and found that antiresorptive medication attenuates this loss.

The authors found that even among women aged 50-54, the range within which the greatest bone loss was noted, the rate was only 1.3% per year. This finding is consistent with rates of loss reported among women in other longitudinal studies. The authors also note that a loss of 1.3% is within the margin of error of most bone densitometry machines.

"The extent of the bone loss that we observed suggests that repeat measurements of bone density could be delayed to intervals of up to 5 years in the absence of other risk factors," conclude the authors.

In a related commentary, Dr. Mark Cooper, Department of Endocrinology, Division of Medical Sciences, University of Birmingham, United Kingdom, highlights the 2-phased nature of bone loss, first around menopause and then after the age of 70. He also stresses that the change in bones over time is complex and that bone density is only one of many factors that can influence an individual's risk for fracture.


Story Source:

The above story is based on materials provided by Canadian Medical Association Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. Berger, Claudie, MSc, Langsetmo, Lisa, PhD, Joseph, Lawrence, PhD, Hanley, David A., MD, Davison, K. Shawn, PhD, Josse, Robert, MD, Kreiger, Nancy, PhD, Tenenhouse, Alan, MD, Goltzman, David, MD, and the Canadian Multicentre Osteoporosis Study Research Group. Change in bone mineral density as a function of age in women and men and association with the use of antiresorptive agents. CMAJ, 2008 178: 1660-1668 DOI: 10.1503/cmaj.071416

Cite This Page:

Canadian Medical Association Journal. "Aging And Bone Mineral Density." ScienceDaily. ScienceDaily, 16 June 2008. <www.sciencedaily.com/releases/2008/06/080616170829.htm>.
Canadian Medical Association Journal. (2008, June 16). Aging And Bone Mineral Density. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2008/06/080616170829.htm
Canadian Medical Association Journal. "Aging And Bone Mineral Density." ScienceDaily. www.sciencedaily.com/releases/2008/06/080616170829.htm (accessed April 17, 2014).

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