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BEIJING, Feb. 11 (Xinhua) -- Chinese society will age fast in the next five years and the government must be well prepared for the demographic change, said Chinese Vice Premier Hui Liangyu here Friday.Government policies needed adjusting and the social insurance network should be improved, Hui said at a meeting of the China National Committee on Aging.Also services for senior citizens should be better developed to meet their needs, said Hui, also the committee's director.The country will also work to expand the pension system in the rural area and cover as many senior people as possible, he said.Health authorities plan to build more medical facilities for the elderly and urban planning should take the needs of senior people into consideration, he said.

WASHINGTON, April 25 (Xinhua) -- A class of drugs that shows promise in breast and ovarian cancers with BRCA gene mutations could potentially benefit colorectal cancer patients with a different genetic mutation, a new study from the University of Michigan Comprehensive Cancer Center finds.Working in cell lines from colorectal cancer patients, researchers found that the class of drugs called PARP inhibitors worked against tumors with mutations in the MRE11 gene.About 15 percent of all colorectal cancers have what's called microsatellite instability, a type of error in the DNA. About 82 percent of those tumors have the MRE11 gene mutation."This is a potential broader application for PARP inhibitors, beyond breast and ovarian cancer. This is a class of drug that's already shown safety in early clinical trials and now might benefit some colorectal cancer patients as well," says lead study author Eduardo Vilar-Sanchez, a hematology/oncology fellow at the university, in a statement.The study, which was published Monday in Cancer Research, also found that PARP inhibitors are even more effective when both copies of MRE11 were mutated. Each person carries two copies of each gene, which means mutations can occur in either one or both copies. The researchers suggest that PARP inhibitors could be targeted specifically to colorectal cancer patients who have two copies of the mutated gene.Researchers are planning a phase I clinical trial to look at using PARP inhibitors in colorectal cancer patients with two mutated copies of MRE11. Future trials are being considered using PARP inhibitors to prevent colorectal cancer and other cancers in people with Lynch syndrome whose tumors have this mutation.Microsatellite instability is also seen in prostate cancer and endometrial cancer, suggesting potential for PARP inhibitors to play a role in additional types of cancer as well, Vilar-Sanchez says, adding that more research is needed in these areas.

HARARE, Feb. 9 (Xinhua) -- The two-day visit to Zimbabwe by Chinese Foreign Minister Yang Jiechi starting Thursday is an endorsement of relations between the Southern African country and China, local figures told Xinhua.Former Zimbabwean ambassador to China Chris Mutsvangwa said in an interview on Tuesday that Yang's visit will also boost economic relations between the two countries."The visit of a foreign minister is a big banner announcement to say that relations between Zimbabwe and China are reaching for a new level," he said."This is a visit which will mark a new diplomatic high watermark in Zimbabwe's international relations because to get the visit of an important and emerging super-power like China with such economic clout is a big vote of confidence on the part of Zimbabweans who have been pummeled by sanctions" imposed by the West.Yang, who will make the visit at the invitation of Zimbabwean Foreign Minister Simbarashe Mumbengegwi, is scheduled to meet President Robert Mugabe and other senior government officials.Mutsvangwa said the Chinese veto at the United Nations in 2008 was "a landmark diplomatic decision where it basically saved Zimbabwe from punitive sanctions instigated by an irate and sulky former colonial power.""So, now this visit will give an opportunity for Zimbabweans tofinally thank China for this act. But more important, cooperation in the economic field is beginning to gather pace because we have crossed the diplomatic and political travails which have been going on in the last 10 years and come out more united because the Chinese veto also enabled Zimbabweans to find accommodation among themselves and led to the GNU and GPA," Mutsvangwa said.China, together with Russia, vetoed the British initiative for full-scale UN sanctions against Zimbabwe, saying the Southern African Development Community (SADC) and the African Union (AU) should be given a chance to resolve the country's political problems.A SADC-driven initiative led to a Government of National Unity (GNU) following the signing of the Global Political Agreement (GPA) between Mugabe and then rivals Prime Minister Morgan Tsvangirai and Deputy Prime Minister Arthur Mutambara."So there is more national unity now among Zimbabweans. It is an opportune moment for us to tighten our relations with China so that we can explore cooperation in the more rewarding material areas of agriculture, mining, tourism and industrialization."There is clearly a lot of scope for cooperation between Zimbabwe and China so that Zimbabwe can quicken its modernization pace taking advantage of the stellar achievements of the Chinese in the above areas," Mutsvangwa said.He cited areas such as telecommunications, international logistics and the internet as being led by the Chinese.China Tobacco has also been on the fore-front reviving tobacco farming in Zimbabwe for the past five years.Mutsvangwa said shortages in the global cotton sector could spur better trade relations between the two countries and lead to more opportunities for Zimbabwean farmers.

WASHINGTON, April 11 (Xinhua) -- Taking a statin before having major elective surgery reduces potentially serious kidney complications, according to a study appearing in an upcoming issue of the Journal of the American Society Nephrology.Each year, more than 230 million major elective surgeries are performed around the world. Unfortunately, many patients who undergo major operations develop kidney injury soon after surgery, often due to decreased blood flow to the kidneys and/or the effects of inflammation.Animal studies suggest that the cholesterol-lowering drugs called statins protect the kidneys from such damage, but whether a similar benefit occurs in humans is uncertain. To investigate, Amber Molnar, University of Western Ontario, and colleagues conducted a population-based retrospective study of all older patients who underwent major elective surgery in the province of Ontario, Canada from 1995 to 2008. Surgeries included cardiac, thoracic, vascular, intra-abdominal, and retroperitoneal procedures.A total of 213,347 patients from 211 hospitals underwent major elective surgery, and 4,020 patients (1.9 percent) developed postoperative kidney injury within two weeks of surgery. A total of 1,173 patients (0.5 percent) required dialysis within two weeks of surgery, and 5,974 patients (2.8 percent) died within a month of surgery.Prior to surgery, 67,941 patients (32 percent) were taking a statin. Patients taking a statin were 20 percent less likely to develop kidney injury, need dialysis, and die compared to patients who were not taking a statin. Also, there was evidence of a dose-effect, with patients on higher potency statins having less kidney injury. In addition, statins were beneficial whether they were started greater than 90 days or less than 30 days prior to surgery."Our study suggests that statin use in older persons results in less kidney injury following major elective surgery and reduces the risk of premature death after surgery," said Molnar, adding that the results warrant further investigation with more rigorous studies, but such trials will be difficult to carry out.

WASHINGTON, May 25 (Xinhua) -- Two U.S. astronauts conducted the third of four scheduled spacewalks for space shuttle Endeavour 's STS-134 mission on Wednesday morning, the U.S. National Aeronautics and Space Administration (NASA) announced.Endeavour's mission specialists Drew Feustel and Mike Fincke completed a six-hour-54-minute spacewalk at 8:37 a.m. EDT (1437 GMT). They completed all planned tasks, installing cables to increase redundancy for the power system on the Russian segment of the station, completing the external wireless antenna system work Feustel and Greg Chamitoff began during the first spacewalk, and installing a power and data grapple fixture to Zarya. The fixture will allow the station's robotic arm to "walk" to the Russian segment, extending its reach by using that grapple fixture as a base.It was the 247th spacewalk conducted by U.S. astronauts, and the 158th in support of space station assembly and maintenance, totaling 995 hours and 13 minutes. If everything goes as planned, the 1,000th hour of space station assembly and maintenance will be logged on Friday.Endeavour lifted off on May 16 from the Kennedy Space Center in Florida, to deliver to the International Space Station a 2-billion- dollar, multinational particle detector known as the Alpha Magnetic Spectrometer (AMS).AMS, a particle physics detector, is designed to search for various types of unusual matter by measuring cosmic rays. Its experiments are designed to help researchers study the formation of the universe and search for evidence of dark matter, strange matter and antimatter.NASA's 30-year-old shuttle program is ending due to high operating costs. The Obama administration wants to spur private companies to get into the space taxi business, freeing NASA to focus on deep space exploration and new technology development.There were initially five space shuttles in the fleet -- Challenger exploded shortly after liftoff in 1986 and Columbia disintegrated on its way back to Earth in 2003. Discovery retired earlier this year, while Endeavour is currently on its final mission. A last mission for Atlantis is scheduled for July, though funding for Atlantis remains in question.The sixth shuttle, Enterprise, did test flights in the atmosphere but was never flown into space. It is already on display at a museum outside Washington.When the U.S. space shuttle program officially ends later this year, the Russian space program's Soyuz capsule will be the only method for transporting astronauts to and from the station.

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