济南早泄有什么能治好(济南生殖器敏感是什么情况) (今日更新中)

WASHINGTON, Oct. 9 (Xinhua) -- U.S. researchers have found a way to block, in an animal model, the damaging inflammation that contributes to many disease conditions. In their report receiving early online publication Sunday in Nature Biotechnology, researchers describe using small interfering RNA technology to silence the biochemical signals that attract a particular group of inflammatory cells to areas of tissue damage."The white blood cells known as monocytes play a critical role in the early stages of the immune response," says Matthias Nahrendorf, of the Massachusetts General Hospital (MGH) Center for Systems Biology, the paper's senior author. "We now know there are two subsets of monocytes -- an inflammatory subset that defends against pathogens and a reparative subset that supports healing. But if the inflammatory response is excessive, it can block the healing process and exacerbate conditions such as heart disease and cancer."Cells damaged by injury or disease release a cocktail of chemicals called cytokines that attract immune cells to the site of the damage. Inflammatory monocytes are guided to sites of tissue injury by a receptor protein called CCR2, and the MGH-led team devised a strategy targeting that molecule to block the inflammatory process but not the action of the reparative monocytes.Small interfering RNA (siRNA) technology prevents production of specific proteins by binding to associated messenger RNA molecules and preventing their translation. However, the technique requires extreme precision in developing the right siRNA molecule and delivering it to the correct cellular location.To make sure that their siRNA preparation targeted the right monocytes, researchers first confirmed that its use reduced levels of CCR2 in monocytes and increased levels of the fragments produced when siRNA binds to its target. They then showed that monocytes from mice treated with the siRNA preparation were unable to migrate towards CCR2's usual molecular target. Experiments in animal models of several important diseases showed that the siRNA preparation reduced the amount of cardiac muscle damaged by a heart attack, reduced the size and the number of inflammatory cells in atherosclerotic plaques and in lymphomas, and improved the survival of transplanted pancreatic islets."These inflammatory monocytes are involved in almost every major disease," Nahrendorf explains. "Anti-inflammatory drugs currently on the market hit every inflammatory cell in the body, which can produce unwanted side effects. This new siRNA treatment doesn't affect inflammatory cells that don't rely on the CCR2 receptor. That makes a big difference."

BEIJING, Oct. 24 (Xinhuanet) -- The average global land temperature has increased by around one degree Cetigrade since the mid-1950s, American scientists announced last week after reviewing historical temperature records to date.According to media reports, the scientists of the Berkeley Earth project have studied more than a billion temperature records dating back to the 1800s from 15 sources around the world.And the result is in line with the estimate made by major institutions which keep official records on the global climate, including the Nasa's Goddard Institute for Space Studies in the US and the Met Office's Hadley Centre in Britain.Meanwhile, the scientists established an open database for the climate records so that skeptics on climate change can assess climage change on their own.Nevertheless, the finding of the scientists at the University of California, Berkeley did not convince climate change skeptics, according to a New York Times report.Anthony Watts, one prominent US skeptics, claimed the study's "methodology was flawed". He also noted that the finding was submitted to journal Geophysical Research Letters before being peer-reviewed.Richard Muller, a physicist and head of the project, argued that the decision to circulate the papers before publication was part a long-standing academic tradition of sanity-checking results with colleagues.He added, cited by the Guardian, "We will get much more feedback from making these papers public before publication."

CANNES, France, Nov. 3 (Xinhua) -- Chinese President Hu Jintao met here Wednesday his French counterpart Nicolas Sarkozy on bilateral ties and other issues of common concern, including the Group of 20 summit scheduled for Thursday and Friday.Hu pointed out that since the global economic recovery is now burdened by quite a few instable and uncertain factors, the international community has great expectations of the G20 Summit in Cannes."The Chinese side actively supports the French side to host the summit," Hu said, emphasizing that the G20 should continue to uphold the spirit of cooperation and send a clear and definite signal of securing growth and promoting stability to the international community through this summit.Hu expressed the hope that all relevant parties should jointly endeavor to make the Cannes summit a conference of solidarity and win-win cooperation.Sarkozy expressed his appreciation of the effort China has made to prepare for the G20 summit. He said the French side was ready to strengthen coordination and cooperation with the Chinese side and work with all other parties to push for positive results at the summit.Hu said Europe is the largest economy in the world, and there will be no global economic recovery without a recovery of the European economy.He pointed out that the package deal that the European Union (EU) struck lately demonstrates its will and determination to resolve Europe's debt problem. He hoped that the implementation of the package deal would help overcome the difficulties facing Europe and be conducive to the recovery and growth of the European economy."It is mainly up to Europe to resolve the European debt problem," Hu said."We believe that Europe has all the wisdom and capability to resolve the debt problem," he added.Sarkozy said Europe is committed to resolving the debt crisis by making its own effort and strengthening cooperation with the international community. Hu said China wants to see Europe prosper.Noting that it was the third time for him to meet Sarkozy so far this year, Hu said the two sides had a frank and in-depth exchange of views on bilateral links, world economic situation, G20 affairs and major international issues and reached many important consensuses.The development of China-France relations has maintained good momentum recently. President Hu paid a state visit to France in November last year and met Sarkozy in March and August this year when the French president visited China.Hu said China places importance on developing its relations with France and the EU. He also thanked Sarkozy for France's meticulous preparation for the G20 summit and its hospitality to global leaders.France values China's role and appreciates its focus on major international issues, Sarkozy said, adding that his country is willing to maintain close communication and consultation with China.

BEIJING, Oct. 25 (Xinhuanet) -- Steve Jobs, Apple's co-founder and former CEO, may be one of the great men who will still be influential after their deaths.The new biography of Steve Jobs is likely to be the top-selling book 2011 of Amazon.com Inc, an online book retailer, according to Amazon spokeswoman Brittany Turner Monday."It could very likely be our top-selling book of the year," Turner said in a statement cited by the Reuters.Steve Jobs, written by Walter Isaacson, former Time magazine managing editor, was landed on shelves in bookstores Monday.But its digital version was reported to be released late on Sunday on Apple's iBooks online store and Amazon's Kindle eBook store.Since its release, the biography, both electronic and physical versions, has performed very well in Amazon.It is the best-selling book on Amazon.com and the top-selling electronic book on the Kindle as well. According to the Reuters, Isaacson was asked by Jobs to consider writing a biography for Apple's former CEO in 2004, when Jobs was going to be operated on for pancreatic cancer.Then Isaacson had more than 40 exclusive interviews with Steve Jobs. The last such interview was on October 5, one week before the giant's death.

BEIJING, Oct. 21 (Xinhua) -- Vice President Xi Jinping has said China is willing to cooperate with Russia on strategic security matters, and that the two nations should work more closely on bilateral and multilateral issues.Xi made the remarks on Thursday in his meeting with Russian Security Council Secretary Nikolai Patrushev, according to a press release issued by the Chinese Foreign Ministry on Friday.China will work more closely with Russia in order to strengthen communication and coordination on regional and international issues, Xi said.Patrushev is in Beijing to co-chair the sixth round of China-Russia strategic security talks with Chinese State Councilor Dai Bingguo.Chinese Vice President Xi Jinping (R) shakes hands with Russian Security Council Secretary Nikolai Patrushev (L) in Beijing, capital of China on Oct. 20, 2011.Xi spoke highly of the contribution made by the China-Russia strategic security talks in boosting bilateral political mutual trust and strategic coordination, calling on the two sides to step up strategic coordination in a bid to better safeguard the common interests of the two nations and promote peace and stability in the world.Citing the significant and profound transition of the international situation, Xi said the two nations face opportunities as well as challenges in maintaining a strategically secure environment for their own development.On bilateral relations, Xi said China always prioritizes its relations with Russia in the country's foreign policy. He expressed China's willingness to make concerted efforts with Russia to push forward bilateral cooperation in the political, economic, energy, science and technology fields.Russia was highly satisfied with the current development of the bilateral ties, Patrushev said, proposing the two sides should strengthen strategic communication, expand mutual trust and cement coordination in multilateral organizations such as the United Nations and the Shanghai Cooperation Organization.China-Russia strategic security talks were initiated by leaders of the two countries in 2005.

来源：资阳报