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BEIJING, March 7 (Xinhua) -- The Chinese currency Renminbi (RMB), or the yuan, on Monday strengthened to an all-time high of 6.5651 per U.S. dollar, according to the China Foreign Exchange Trading System.Monday's central parity rate of the RMB against U.S. dollar was 20 basis points lower than the previous record of 6.5671 set on last Friday.The yuan has appreciated 3.84 percent since June 19 last year when the People's Bank of China, the central bank, announced it would further reform the exchange rate formation mechanism to improve its flexibility.On China's foreign exchange spot market, the yuan can rise or fall 0.5 percent from the central parity rate each trading day.The central parity rate of the RMB against the U.S. dollar is based on a weighted average of prices before the opening of the market for each business day.

WELLINGTON, May 24 (Xinhua) -- New Zealand researchers have found a way to stop the growth of certain cancer tumors by " silencing" a group of PAX genes, members of a small family of genes that play important roles in embryonic development, but also allow cancer cells to grow and divide in adult tissue.In an article published in UK medical journal Oncogene, Otago University Professor Michael Eccles and colleagues revealed how they used the PAX8 gene to kill cancer cells.After detecting high levels of PAX8 protein in the majority of kidney, ovarian and thyroid cancers they studied, the researchers used molecular techniques to silence the PAX8 gene in several cancer cell lines."We found that these PAX8-depleted cancer cells ceased growing and dividing. The cells were essentially stopped in their tracks through the failure of multiple mechanisms and pathways crucial to their cell division cycle. They then entered into a state called senescence in which they no longer divided, and after that they ultimately died," Eccles said in a statement from the university Tuesday.The findings suggested that PAX8 could be a good target for the development of new cancer therapies, he said."Any resulting drugs would be a long way down the road, but in the meantime this research helps confirm that a focus on PAX genes may prove to be a fruitful line of attack against a number of cancers," he said.The research was supported by grants from the Health Research Council of New Zealand. It formed the main piece of work carried out by Otago doctoral graduate Caiyun (Grace) Li, now a postdoctoral fellow at Stanford University. Study co-authors also included Professor Antony Braithwaite and master's student Jen Nyman.In 2003, research led by Eccles discovered that proteins from one or more of the nine PAX genes were present in many common cancers. They found that "silencing" the gene expression of PAX2 in ovarian and bladder cancer cells, and of PAX3 in melanoma, led to the rapid death of the cells.

TIANJIN, April 16 (Xinhua) -- As China tries to establish a universal medicare umbrella, its first move to offer treatment to all the hemophilia patients in the country is to know their population and where they are.China's national hemophilia information management center registered 7,980 cases nationwide since its establishment last year in a bid to provide reference for making national treatment policies and medicine production quota, said the center officials Saturday.Yang Renchi with the center and the Chinese Academy of Medical Sciences, said that the patient information database will help the government make hemophilia-related medical and social welfare policies, optimize resources and guide the manufacturing of drugs such as coagulation factor VIII.The information center, created by the Ministry of Health, is located in the Blood Diseases Hospital of the Chinese Academy of Medical Sciences in the port city Tianjin in north China.Hemophilia is a rare genetic bleeding disorder that prevents the blood from clotting properly, resulting in easy bruising and prolonged bleeding from trauma. Lack of treatment can lead to permanent disabilities or even death.China is estimated to have roughly 100,000 hemophilia patients."Be inspired; get involved in Treatment for All" is the theme for the 22nd World Hemophilia Day, which falls on Sunday, April 17."A necessary precondition for 'Treatment for All' is to know the clinical information and location of each case," said Yang, "and this is exactly what the information system does."In addition, China plans to establish hospital-based provincial hemophilia management centers within five years across the country to register and monitor patients and standardize disease diagnosis and treatment under the information system.SHORTAGE OF DRUGSBlood-derived coagulation factor VIII and recombinant coagulation factor VIII are two effective drugs which are vital for hemophiliacs. However, the drugs are expensive and produced in limited quantities, a difficulty which hundreds of thousands of hemophiliacs in China have to confront.According to Yang, the minimum dose of coagulation factor VIII for prevention of bleeding episodes is two international units (IU) per kg of weight a day. A 50-kg hemophilia patient needs at least 36,500 IU of factor VIII every year to prevent bleeding."Each IU of blood-derived coagulation factor VIII costs about 3 yuan(0.46 U.S. dollars) and the annual cost is almost 120,000 yuan. The recombinant one is almost twice the price," said Yang.Only four drug firms are qualified to manufacture blood-derived coagulation factor VIII in China. The national output in 2010 was 400,000 vials (200 IU per vial) which means 80 million IU for the entire country.Wu Runhui, a hematology specialist with the Beijing Children's Hospital, said that the minimum dose is only for the prevention of bleeding episodes which are required to keep the patient alive. For the hemophiliac to live a regular lifestyle, 3,000 IU per kilo a year is needed, which would cost half a million yuan a year."Even in the most developed countries, a hemophiliac cannot survive without supportive medical policies and social welfare system," said Wu.

TOKYO, May 21 (Xinhua) -- Japanese Economy, Trade and Industry Minister Banri Kaieda met with visiting Chinese Commerce Minister Chen Deming in Tokyo Saturday and agreed the two countries will promote bilateral trade to assist Japan's recovery after the March 11 quake and tsunami.Chen, who accompanied Chinese Premier Wen Jiabao to Japan, told Kaieda that China will offer "as much cooperation as possible to help Japan's reconstruction" by providing necessary supplies.Kaieda said Japan will strive to restore production and supply chain disrupted by the disasters as soon as possible.The two sides said they will conduct various investment and trade activities to strengthen cooperation and personnel exchange, and facilitate the smooth flow of bilateral trade so as to promote sustainable development.The two ministers signed a document on expanding bilateral economic and trade cooperation. They also reaffirmed that free and open trade will help Japan's reconstruction efforts.

LOS ANGELES, May 20(Xinhua)-- Peter, a Chinese American who works for the post office in Rosemead, California, said he has been attacked by dogs twice in the past 10 years while delivering mails.He said as a mail carrier, he has to walk door to door to put mails into the mailboxes of the residents, and many times the owners were not at home but their dogs were too loyal to their duties and would see mail carriers like him as intruders."It is dangerous to be a mail carrier. The enemy is not humans but animals like dogs who have been generally seen as human's best friends," Peter, who asked not to identify his full name, told Xinhua.Mail carriers in the United States feel the real danger of being attacked by dogs while delivering mails door by door.Statistics released by the U.S. Post Office showed that 5,669 postal employees were attacked by dogs in 2010 in the United States. That's an average of 11 dog attacks every delivery day, and that figure does not include the number of threatening incidents that did not result in injury.Los Angeles is the third most dangerous city in the U.S. when it comes to being a mail carrier with 44 mail carriers being attacked by dogs in 2010, according to the U.S. Post Office.San Diego in California and Columbus in Ohio tied for second place, each logging 45 dog attacks. Houston in Texas is the most dangerous city in the U.S. for mail carriers with 62 attacks in 2010.On May 25, 2010, Eddie Lin, a 33-year old Chinese American postal carrier in San Diego, was attacked by a dog while delivering mail, his head hit on the ground and died 10 days later. His death angered his family and the whole community.The daughter of the dog's owner, who identified herself as Eva, said the incident has devastated her father."We feel really bad," Eva told the local press in an interview. "It's just killing my Dad," she added.On Sept. 30, 2010, a German Shepard and a Pitbull mix attacked Hu Ruiz, a 10-year veteran of the U.S. Postal Service. He luckily recovered from puncture wounds on his arms after the two dogs attacked him as he made deliveries along Camden Avenue in San Jose, California.It is not the problem for the mail carriers only. Dogs attack other people too. Statistics showed that there are more than 4.7 million Americans bitten by dogs nationwide annually.

来源：资阳报