濮阳东方男科医院咨询医生热线(濮阳东方医院治阳痿价格便宜) (今日更新中)

BEIJING, May 24 (Xinhuanet) -- CT scan, a widely used heart-imaging test, is likely to result in the over treatment for patients with heart disease, according to a study published online by the Archives of Internal Medicine on Monday.CT, which produces a detailed image of the heart that reveals cholesterol buildups in the coronary arteries, is widely used in the hospital around the world."Testing might lead to more harm than good," said McEvoy, a doctor at Seoul National University Bundang Hospital in S. Korea.His team led the study, in which 2,000 healthy adults were divided into two groups. One thousand adults had CT scans and another half had standard tests, including routine checks of their blood pressure and cholesterol levels.After 18 months, the 215 people who had worrisome CT scans were advised to have additional tests and medical treatment, and some even advised to have surgery. But less than 10 percent in the group of standard test were reported to need medications.Therefore, physicians cannot easily ignore the diagnoses made by the new imaging techniques, McEvoy said, "We are left with the dilemma of what to do with the results,"According to McEvoy, doctors should focus on patients' lifestyle and traditional risk factors such as smoking and obesity.

UNITED NATIONS, April 7 (Xinhua) -- To celebrate the 50th anniversary of the first human space flight, accomplished on April 12, 1961 by Soviet cosmonaut Yuri Gagarin, the Russian Permanent Mission to the United Nations, the Russian Federal Space Agency and the ITAR-TASS information agency organized an exhibition which was opened here on Thursday."The first human space flight is not one of the most significant events of the past century, but of human history in general," Vitaly Churkin, the Russian permanent representative to the UN, said at the opening ceremony."It's a symbol of courage, thirst for knowledge, and progress," Churkin said.The exhibition contained archival photos telling the story of the first human space flight and of those who made it possible, and historic pictures of Gagarin.As part of the celebration of human space flight's 50th anniversary the UN Postal Administration designed postal stamps which will be issued on April 12, to tell the story of progress that humankind has made beyond earth's boundaries, as Kiyo Akasaka, Under-Secretary-General for Communications and Public Information put it."Fifty years have passed since that amazing voyage, but the legend of Gagarin's courage and journey to the 'final frontier' continues to be a source of inspiration for space exploration for peoples and nations around the world," Akasaka said at the opening of the exhibition.According to Akasaka, the exhibition "sparks people's imagination about what is possible through the peaceful use and exploration of outer space."Other attendees included Russian cosmonaut Oleg Kotov.Gagarin, also known as the Columbus of the Cosmos, traveled into outer space on the height of the Cold War when the Berlin Wall was built, at a moment when it was hardly impossible to imagine that more than 15 nations would work together in humanity' s permanent space outpost -- the International Space Station.The Russian icon of space spoke the historic words "the earth is blue, how wonderful. It is amazing."On Thursday the UN General Assembly adopted a resolution declaring April 12 as the International Day of Human Space Flight.

BEIJING, May 10 (Xinhuanet) -- America's first full face transplant recipient, Dallas Wiens, made his first public appearance at the Brigham and Women's Hospital in Boston, according to media reports Tuesday.Sporting a goatee and dark sunglasses, Wiens, the 25-year-old Fort Worth, Texas, man, said Monday his new face feels natural just weeks after a 15-hour procedure that gave him a nose, lips, skin, muscle and nerves. Wiens said he was able to smell again and breathe through his nose normally, adding his 4-year-old daughter told him when she saw him after the operation: "Daddy, you're so handsome."  Wiens lost all of his features and eyesight in November 2008 after hitting a power line while painting a church and underwent the transplant in March, 2011. The operation was paid for by the U.S. Department of Defense which gave the hospital a 3.4 million dollar research grant for five transplants.Surgeons said the transplant was not able to restore his sight, and some nerves were so badly damaged from his injury that he will probably have only partial sensation on his left cheek and the left side of his forehead."The most fun part is to see the next six to nine months when the function will start to come back and when Dallas will start to feel a light touch on his face," plastic surgeon Bohdan Pomahac said. "To me, that's really exciting."About a dozen face transplants have been done worldwide, in China, the U.S., France and Spain.

DAVOS, Switzerland, Jan. 29 (Xinhua) -- China is ready to push the decade-long Doha Round negotiations for a final success, Chinese Minister of Commerce Chen Deming said here on Saturday.Speaking at the World Trade Organization (WTO) Mini-Ministerial Meeting which brought together representatives from over 20 major trading powers, Chen said that China is ready to collaborate with other WTO members in a practical and proactive manner so as to draw a successful conclusion of the Doha Round talks by the end of 2011.A rapid conclusion of the negotiations, Chen said, will be beneficial to global economic recovery, which is to the interest of all.The commerce minister acknowledged the year 2011 as a "window of opportunity," albeit a narrow one."China will give support to the roadmap proposed by WTO Director-General Pascal Lamy," he said, adding that the country is willing to act vigorously to push forward the negotiation process.To ensure that an early final deal could be in reach, Chen said, parties should set goals in a practical manner, in accordance with the ambition level, and stick to what has been achieved as well as the Doha Development Agenda (DDA), while focusing primarily on pending issues.Held on the sidelines of the annual World Economic Forum, the WTO Mini-Ministerial Meeting is an annual event under the auspices of the Swiss Federal Government.Chen on Friday also joined discussions with his counterparts from the emerging club -- India, Brazil and South Africa, before attending the trade G7 meeting, consisting of Australia, Brazil, China, the European Union, India, Japan and the United States.

BEIJING, April 12 (Xinhuanet) -- The elderly have a difficult time with multi-tasking as a study suggests that older brains behave differently when it comes to switching between two tasks, according to media reports on Tuesday.Researchers used functional magnetic resonance imaging (FMRI) to analyze brain activity in 20 people over age 60 by asking them to contemplate outdoor photos shown briefly. Then the elderly were presented with the picture of a face and asked to determine its gender and age, before being asked to recall details from the original scene they viewed.Researchers then compared their results to a similar experiment with 20 younger adults and found the brains of older subjects were less capable of disengaging from the interruption and reestablishing the neural connections necessary to switch back to focusing on the original memory."Unlike younger individuals, older adults failed to both disengage from the interruption and re-establish functional connections associated with the disrupted memory network," write Wesley C. Clapp of the University of California, San Francisco, and colleagues in the Proceedings of the National Academy of Sciences.The study, published in the online edition of the journal Proceedings of the National Academy of Sciences, sheds new lights into a growing body of studies showing that one's ability to move from one task to another in quick succession becomes more difficult with age.

来源：资阳报