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NIH study finds HIV-positive young men at risk of low bone mass
Date:6/19/2012

. Kapogiannis, and seven other researchers affiliated with the NICHD-supported Adolescent Medicine Trials Network for HIV/AIDS Interventions (ATN).

Their findings appear in Clinical Infectious Diseases.

Additional funding was provided by the NIH's National Institute on Drug Abuse, the National Center for Research Resources and the National Center for Advancing Translational Sciences.

Some 250 teens and young men (14 to 25 years old) participated in the study. About 88 percent of the study participants identified themselves as African-American or Hispanic and all lived in urban areas. The participants underwent whole body scans to measure their bone density as well as the distribution of fat and lean muscle mass in certain regions of their bodies. Participants also answered questions about their medical history, and diet, exercise and other lifestyle habits.

The researchers calculated the density of bones in the body as a whole, as well as the spine and hipbones. These bones are more susceptible than other bones to bone loss, Dr. Mulligan explained. The researchers also assessed total body fat and amounts of fat in the arms, legs and trunk.

The researchers found that the HIV-positive participants who had not yet begun treatment tended to have less body fat than either their counterparts on medication or the study's HIV-negative participants.

Both bone density and the calcium and other mineral content of bones tended to be lowest in participants taking medication for HIV. Youth with HIV who had not begun treatment had higher bone mass levels than HIV positive youth who were on anti-HIV regimens, but lower bone mass levels than youth who did not have HIV. Participants' responses to questions about diet indicated that at least half of them did not consume sufficient calcium or vitamin D. The researchers also found that more than 30 percent of all the participants smoked. Half said they did not get
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Contact: Robert Bock or Marianne Glass Miller
bockr@mail.nih.gov
301-496-5133
NIH/National Institute of Child Health and Human Development
Source:Eurekalert

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