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Serum Testosterone Linked to Fracture Risk in Elderly Men

Serum Testosterone Linked to Fracture Risk in Elderly Men

Thursday, January 17th 2008

January 15, 2008 - In community-dwelling men older than 60 years, serum testosterone levels were independently associated with the risk for osteoporotic fracture, according to the results of a study reported in the January 14 issue of the Archives of Internal Medicine.

"Male aging is associated with a gradual decrease in circulating testosterone, which may be detrimental to bone," writes Christian Meier, MD, from the University Hospital Basel in Switzerland, and colleagues from The Dubbo Osteoporosis Epidemiology Study. "However, the relationship between testosterone and incident fracture risk remains unclear."

Between January 1989 and December 2005, a total of 609 men older than 60 years were evaluated and were followed up for incidence of low-trauma fracture. Median duration of follow-up was 5.8 years (range, up to 13 years). Baseline evaluation included assessment of clinical risk factors such as bone mineral density (BMD) and lifestyle factors, and serum testosterone and estradiol levels measured by tandem mass spectrometry.

During follow-up, 113 men had 1 or more low-trauma fractures, with the risk significantly increased in men with reduced testosterone levels (hazard ratio [HR], 1.33; 95% confidence interval [CI], 1.09 - 1.62). After adjustment for sex hormone-binding globulin (SHBG), serum testosterone (HR, 1.48; 95% CI, 1.22 - 1.78) and serum estradiol (HR, 1.21; 95% CI, 1.00 - 1.47) levels were associated with overall fracture risk.

Major risk factors for fractures were considered to be age, weight, BMD, fracture history, smoking status, calcium intake, and SHBG. Even after further adjustment for these risk factors, lower testosterone levels were still associated with increased risk for fracture, especially for hip fractures (HR, 1.88; 95% CI, 1.24 - 2.82) and for nonvertebral fractures (HR, 1.32; 95% CI, 1.03 - 1.68).

Limitations of the study include inability to infer any causal relationship between circulating testosterone and fracture risk, lack of generalizability to other populations, serum samples stored in the freezer for up to 13 years, and serum not collected consistently in the morning.

"In community-dwelling men older than 60 years, serum testosterone is independently associated with the risk of osteoporotic fracture and its measurement may provide additional clinical information for the assessment of fracture risk in elderly men," the study authors write. "This effect was independent of established risk factors, such as age and BMD. In contrast, there was no significant association between serum E2 [estradiol] levels and fracture in the presence of BMD and age."

The National Health and Medical Research Council of Australia and the ARUP Institute for Clinical and Experimental Pathology supported this study. Dr. Meier is supported by the Swiss National Science Foundation and the Margarete und Walter Lichtenstein Stiftung der Universität Basel. Some of the other study authors have also obtained funding. The remaining study authors have disclosed no relevant financial relationships.

Arch Intern Med. 2008;168:47-54. 17/01/08

Footnote from Ideal Health:

At Ideal Health and healthyonline we offer Self Test Hormonal tests, that measure your salivary hormone levels. The sample is easy to take. Once taken, your saliva sample is sent off to Pathlab in Australia, who analyse this and send the results directly to Leanne. Armed with these results, you can then determine if an excess or lack of hormones is a contributor to your health problems.

Here are links to the Self Test Hormonal Kits

Self Test Male Hormone Test Kit
Self Test Multiple Hormone Test Kit
Self Test Female Hormone Test Kit

These are great for increasing Testosterone:

Go Man Plus
Herbal Y Extreme for Men
Man Power
Tribulus 20,000

Related health information can be found here:

DIM Plus to assist in cancer prevention
Free radicals and antioxidants
Improve fertility levels and libido with Tribulus
Multivite - why taking a multivitamin and mineral supplement is so essential?
The Prostate Gland

Related articles can be found here:

Health-Giving Broccoli the Best of the Bunch
Lifestyle Changes May Prevent or Reverse Prostate Cancer
Testosterone Improves Sexual Function in Women With Hypoactive Sexual Desire Disorder
Balance Your Estrogen/ Testosterone Levels Naturally With DIM (Dinndolylmethane)
Second Prostate Cancer Gene Found

If you need help or advice, you are welcome to email our naturopathic team with your health question.

Disclaimer: The health information presented here has been written for the New Zealand health consumer. It is of a general nature and is only intended to provide a summary of the subjects covered. The information is not intended to be comprehensive or to provide medical advice to you. While all care has been taken to ensure the accuracy of the information, no responsibility or liability is accepted, and no person should act in reliance on any statement contained in the information provided. All health ailments should be treated by a qualified health professional.

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