Featured Research

from universities, journals, and other organizations

Experiment aboard shuttle Atlantis will test novel therapy to build bone during space travel

Date:
July 6, 2011
Source:
Beth Israel Deaconess Medical Center
Summary:
When the final mission of NASA's 30-year Space Shuttle program is launched on July 8, an animal experiment to test a novel therapy to increase bone mass will be on board.

Astronauts lose a significant amount of bone mass during space travel and with long duration flights there is concern that this bone loss could lead to an increased risk of fractures. When the final mission of NASA's 30-year Space Shuttle program is launched on July 8, an animal experiment to test a novel therapy to increase bone mass will be on board.

Led by a consortium of scientists from Beth Israel Deaconess Medical Center (BIDMC), Amgen, Inc., UCB, BioServe Space Technologies and the University of North Carolina, and funded by NASA's Ames Research Center, the research will not only address a serious problem that affects astronauts who spend weeks and months in a low-gravity environment, but may also yield novel insights into the prevention and treatment of skeletal fragility among patients on earth who are less active due to aging or illness.

"Mechanical loading is required to maintain musculoskeletal health," explains Co-Principal Investigator Mary Bouxsein, PhD, a scientist in BIDMC's Center for Advanced Orthopaedic Studies and Assistant Professor of Orthopaedic Surgery at Harvard Medical School.

"On earth, our bones experience mechanical forces from being pushed and pulled by muscles that work against gravity to keep us upright and moving around, as well as from the impact of our body weight against the ground," she explains. "These forces are much lower in micro-gravity environments and, as a result, the rate of bone loss among astronauts is about 10 times greater than that seen in postmenopausal women. So, while this research is designed to better understand and prevent skeletal fragility among astronauts, it may also tell us a great deal about the future potential of this novel therapy to improve bone strength here on earth, in both older persons and in individuals with reduced physical activity due to various clinical conditions, such as stroke, spinal cord injury or cerebral palsy."

NASA's Commercial Biomedical Test Module (CBTM-3) experiment will examine whether the use of an antibody that blocks the action of the protein sclerostin can lead to gains in bone mass and thereby prevent skeletal deterioration. (The sclerostin molecule is a potent inhibitor of bone formation that is produced by osteocytes, bone cells which form a "nerve-like" network that enable the skeleton to "feel" and respond to mechanical strain.)

"This proof-of-principle study will enhance our understanding of the science behind the sclerostin antibody and arm us with important research to support potential future therapeutic applications in both astronauts and patients suffering from bone loss," notes Amgen Scientific Executive Director Chris Paszty, PhD.

Thirty mice will be flown in space, with half of the animals given a preflight injection of the sclerostin antibody and the remaining mice receiving a placebo. After the flight lands (following 12 days in space), various aspects of the structure, composition, strength and cell and molecular nature of the bones from the flight and ground-based control mice will be analyzed.

"When the mice come back from space, we hope to learn what the effects of microgravity are on the skeleton and on the muscle," explains Bouxsein. "We also want to find out if this new type of therapy will be able to counteract those profound effects and actually promote bone gain in a microgravity environment.

"One in two women and one in five men over age 50 will suffer a fracture resulting from osteoporosis [and bone loss] during their remaining lifetime," she adds. "These fractures have profound personal and societal consequences. With the increasing age of the population there is urgent need to develop bone-building therapies to prevent this type of potentially debilitating injury."

In addition to Bouxsein, Principal Investigators include Chris Paszty, PhD, and Hua Zhu (David) Ke, MD, of Amgen, Inc., Thousand Oaks, CA; Martyn Robinson, PhD, of Union Chimique Belge (UCB), Brussels, Belgium; Virginia Ferguson, PhD and Louis Stodieck, PhD, of the University of Colorado BioServe Space Technologies, Boulder, CO; and Ted Bateman, PhD, University of North Carolina, Chapel Hill, NC.


Story Source:

The above story is based on materials provided by Beth Israel Deaconess Medical Center. Note: Materials may be edited for content and length.


Cite This Page:

Beth Israel Deaconess Medical Center. "Experiment aboard shuttle Atlantis will test novel therapy to build bone during space travel." ScienceDaily. ScienceDaily, 6 July 2011. <www.sciencedaily.com/releases/2011/07/110706104802.htm>.
Beth Israel Deaconess Medical Center. (2011, July 6). Experiment aboard shuttle Atlantis will test novel therapy to build bone during space travel. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2011/07/110706104802.htm
Beth Israel Deaconess Medical Center. "Experiment aboard shuttle Atlantis will test novel therapy to build bone during space travel." ScienceDaily. www.sciencedaily.com/releases/2011/07/110706104802.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



    Save/Print:
    Share:

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile: iPhone Android Web
    Follow: Facebook Twitter Google+
    Subscribe: RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins