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WASHINGTON, Oct. 3 (Xinhua) -- Researchers at St. Michael's Hospital in Canada have discovered a new function for an enzyme that may protect against organ injury and death from anemia, according to a study appearing Monday in the U.S. journal of the Proceeding of the National Academy of Sciences.Researchers found that when people have anemia, neuronal nitric oxide synthase (nNOS) -- an enzyme in nerve cells that produces nitric oxide, an important signaling molecule in the body -- increases the body's ability to respond, adapt to low oxygen levels and makes the body more efficient in delivering oxygen to tissues. They also found that levels of nNOS in the brain increased in anemic mice, and that the mice without this enzyme die earlier, and with higher hemoglobin levels."Identifying this mechanism may lead to new therapies and approaches to improving outcomes for anemic patients," said Dr. Greg Hare, a researcher at the Li Ka Shing Knowledge Institute of the hospital and one of the lead investigators of the study.Anemia occurs when blood has a lower than normal number of red blood cells or hemoglobin -- an iron-rich protein that carries oxygen from the lungs and heart to the rest of the body. Cells need oxygen to survive and to produce energy for all bodily functions. The condition has many different causes including infection (malaria, HIV, parasites), nutritional deficiencies (iron, folate, B12), genetic mutations, pregnancy, trauma and surgical blood loss."This research will help us identify when an anemic patient is at greatest risk for injury and death when undergoing surgery," said Hare. "Research is underway to test these findings in humans."

UNITED NATIONS, Oct. 17 (Xinhua) -- China on Monday underlined the importance of safeguarding the peaceful use of outer space and preventing the weaponization of and an arms race in outer space, saying that "the outer space is the common wealth of mankind as the global public space."The statement came as Wang Qun, the Chinese ambassador for disarmament affairs, was taking the floor at the thematic debate on outer space at the First Committee of the UN General Assembly. The First Committee is in charge of disarmament and international security."The outer space is the common wealth of mankind as the global public space," Wang said. "The permanent peace of outer space is correlated to all nations' security, development and prosperity.""Meanwhile, with the growing reliance of mankind on outer space, the risk of the weaponization of and an arms race in outer space are on rise, and the uncertainties concerning outer space security are accumulating as well," he said. "Safeguarding the peaceful use of outer space and preventing the weaponization of and an arms race in outer space are common interest and obligations of all countries."In responding to the growing challenge for security in outer space, the international community also witnessed common grounds on opposing to the weaponization of outer space and advertising the Prevention of an Arms Race in Outer Space, he said.The General Assembly, for consecutive years, adopted " Prevention of an Arms Race in Outer Space" resolution by overwhelming majority of votes, calling for negotiations on an international legally-binding instrument on the prevention of an arms race in outer space at the Conference on Disarmament in Geneva."The mankind has marched into the 6th decade of outer space exploitation, and the manned space flight has made a history of 50 years," Wang said."Recently, China has successfully launched the Tiangong-1 ( Heavenly Palace 1) as a target spacecraft for rendezvous and docking experiment, which opens a new era of China's manned space flight, and also reflects that China is committed itself to the honorable objective of promoting the peaceful exploration and utilization of the outer space, maintaining peace and bringing benefit to mankind."

BEIJING, Nov. 1 (Xinhua) -- Commander-in-chief of China's manned space program Chang Wanquan announced early Tuesday that the launch of Shenzhou-8 unmanned spacecraft is successful.The spacecraft was successfully sent into the designated orbit after the blastoff at 5:58 a.m. at the Jiuquan Satellite Launch Center in northwestern desert area, carried by an upgraded Long March-2F rocket.It is heading to rendezvous with the Tiangong-1, or "Heavenly Palace-1" that was put into space on Sept. 29 for the country's first space docking.The docking, if successful, will pave the way for China to operate a permanent space station around 2020, and make the nation the world's third to do so.The launch was attended by Chinese Vice Premier Zhang Dejiang. It was also observed by senior experts from the European Space Agency and the German Aerospace Center at the launch site.The docking will happen within two days after the launch of the Shenzhou-8 at a height of 343 km above Earth's surface. The spacecraft will return to Earth after two docking operations.

WASHINGTON, Jan. 1 (Xinhua) -- Twin U.S. spacecraft to study the moon from crust to core put themselves into the lunar orbit on New Year's Eve and New Year's Day, the country's space agency said.The second Gravity Recovery And Interior Laboratory, or GRAIL-B, reached its lunar orbit at 5:43 p.m. EST (2243 GMT) on Sunday, according to the National Aeronautics and Space Administration (NASA).The GRAIL-A started orbiting the moon at 5 p.m. (2200 GMT) Saturday.The insertion maneuvers placed the spacecraft into a near-polar, elliptical orbit with an orbital period of approximately 11.5 hours, NASA said.Over the coming weeks, the GRAIL team will execute a series of burns with each spacecraft to reduce their orbital period to just under two hours. At the start of the science phase in March 2012, the twin GRAILs will be in a near-polar, near-circular orbit with an altitude of about 55 km."NASA greets the new year with a new mission of exploration," Administrator Charles Bolden said in a statement. "The twin GRAIL spacecraft will vastly expand our knowledge of our moon and the evolution of our own planet."During GRAIL's science mission, the two probes will transmit radio signals precisely defining the distance between them. As they fly over areas of greater and lesser gravity caused by visible features such as mountains, craters and masses hidden beneath the lunar surface, the distance between the twin spacecraft will change slightly.Scientists will translate this information into a high-resolution map of the moon's gravitational field.The data will allow scientists to understand what goes on below the lunar surface and increase knowledge of how Earth and its rocky neighbors in the inner solar system developed into the diverse worlds we see today.

HANOI, Oct. 25 (Xinhua) -- The hand-foot-mouth disease (HFMD) and dengue were on the rise across Vietnam, reported the Vietnam Preventive Medicine Administration (PMA) on Tuesday.As of Oct. 23, the country had more than 76,120 HFMD patients and 135 fatalities. The number of incidents has increased significantly over the last few weeks, with an average of 2,000-2, 500 new cases reported each week.Southern Ho Chi Minh City and Binh Duong, Long An and Quang Ngai were the most-hit localities, said the report.Meanwhile, dengue was also reported on the rise. In the first ten months of the year, there were more than 41,200 infected cases and 32 fatalities. Currently, an average of 2-3 cases a day were hospitalized by dengue infections, mainly from capital Hanoi.Epidemiologists said that the increase of HFMD and dengue was due to the lack of specialized medicine and preventive vaccines. In addition, complicated climate change, environment pollution and low awareness of the disease among the community have contributed to the spread of the diseases nationwide.