中山肛门有下坠感是怎么回事中山大便带点血怎么回事,中山市好的肛肠科医院,中山大便便血该怎么治,中山中山华都医院地方,中山肛裂便血严重怎么办,中山解大便屁股疼,还有少量血,中山混合痔最好医院

WASHINGTON, Oct. 13 (Xinhua) -- In a trial that included about 35,000 men, those who were randomized to receive daily supplementation with vitamin E had a significantly increased risk of prostate cancer, according to a study published this week in the Journal of the American Medical Association.The study followed more than 35,533 men 50 or older at 427 sites in the United States, Canada and Puerto Rico. The men were divided into four groups who took daily doses of 400 international units of Vitamin E and 200 micrograms of selenium; Vitamin E and a placebo that looked like selenium; selenium and a placebo that looked like Vitamin E; or two placebos. The recommended daily intake of Vitamin E is about 22.4 international units.The researchers from the Cleveland Clinic found that the rate of prostate cancer detection was greater in all treatment groups when compared with placebo but was statistically significant only in the vitamin E alone group -- a 17 percent increased rate of prostate cancer detection. The difference in rates of prostate cancer between vitamin E and placebo became apparent during the participants' third year in the trial. The elevated risk estimate for vitamin E was consistent across both low- and high-grade disease."The observed 17 percent increase in prostate cancer incidence demonstrates the potential for seemingly innocuous yet biologically active substances such as vitamins to cause harm. The lack of benefit from dietary supplementation with vitamin E or other agents with respect to preventing common health conditions and cancers or improving overall survival, and their potential harm, underscore the need for consumers to be skeptical of health claims for unregulated over-the-counter products in the absence of strong evidence of benefit demonstrated in clinical trials," the researchers said.

HELSINKI, Nov.23 (Xinhua) -- Nokia Siemens Networks is planning to cut its workforce by 17,000 worldwide by the end of 2013, the company said in a statement on Wednesday in Espoo, Finland.The company said the measures are part of an extensive global restructuring program, in which it will focus on mobile broadband and services."We need to take the necessary steps to maintain long term competitiveness and improve profitability in a challenging telecommunications market," said the company's Chief Executive Rajeev Suri in the statement.Rajeev Suri called the job cuts regrettable but necessary, and said the company would provide support for individuals and communities affected by the cuts, but defended the decision on economic grounds.Nokia Siemens is aiming to cut operating expenditures by around a billion euros over two years.Some 74,000 people currently work for the Espoo-based company in 150 countries, around 7,000 in Finland. The company will announce the geographical distribution of the job cuts later on.

WASHINGTON, Nov. 24 (Xinhua) -- An inexpensive drug that treats Type 2 diabetes has been shown to prevent a number of natural and man-made chemicals from stimulating the growth of breast cancer cells, according to a newly published study by a Michigan State University researcher. The research, led by pediatrics professor James Trosko and colleagues from South Korea's Seoul National University, provides biological evidence for previously reported epidemiological surveys that long-term use of the drug metformin for Type 2 diabetes reduces the risk of diabetes-associated cancers, such as breast cancers.The research appeared online this week in PLoS One.For the study, Trosko and colleagues focused on the concept that cancers originate from adult human stem cells and that there are many natural and man-made chemicals that enhance the growth of breast cancer cells. Using culture dishes, they grew miniature human breast tumors, or mammospheres, that activated a certain stem cell gene. Then the mammospheres were exposed to natural estrogen -- a known growth factor and potential breast tumor promoter -- and man-made chemicals that are known to promote tumors or disrupt the endocrine system.The team found that estrogen and the chemicals caused the mammospheres to increase in numbers and size. However, with metformin added, the numbers and size of the mammospheres were dramatically reduced. While each of the chemicals enhanced growth by different means, metformin seemed to be able to inhibit their stimulated growth in all cases."While future studies are needed to understand the exact mechanism by which metformin works to reduce the growth of breast cancers, this study reveals the need to determine if the drug might be used as a preventive drug and for individuals who have no indication of any existing cancers," Trosko said.

BERLIN, Oct. 30 (Xinhua) -- The Sino-German strategic partnership has been further intensified and expanded in the year 2011, Chinese Ambassador to Germany Wu Hongbo told Xinhua in a recent interview prior to China's top political advisor Jia Qinglin's visit to Germany.The frequent, high-level mutual visits between China and Germany have pushed forward progress of political, economic, cultural and other cooperations steadily, and strengthened the communication and coordination on key international and regional issues, he said.This year has featured frequent mutual visits between the leaders of China and Germany, as Vice Premier Li Keqiang visited Germany at the start of the year, followed by the first round of bilateral minister-level strategic dialogue between German vice-chancellor and foreign minister Guido Westerwelle and Chinese Foreign Minister Yang Jiechi during Westerwelle's visit to China three months later.In June, Chinese Premier Wen Jiabao and his German counterpart Angela Merkel co-chaired the first round of China-Germany inter-governmental consultation. Attended by more than 20 ministers from both sides for 8counterpart conversation on a wide range of topics, the consultation wound up with substantial accomplishments.It was the first time China had ever established such a high-level inter-governmental negotiation mechanism with a European Union (EU) country. In addition, both countries have also carried out active and effective cooperations on global economic governance reform, handling of climate changes, nuclear safety and many other international issues."The two countries have signed some 20 documents on bilateral cooperations and important economic agreements, involving over 15 billion U.S. dollars," Wu said.A wide range of common ground were established, including the establishment of strategic partnership in producing electric-powered automobile, expanding cooperations in tapping new energy, environmental protection, energy saving and energy efficiency-improvement, according to him.Furthermore, China has earmarked some two-billion-euro worth of special loans to sustain the cooperations among the medium- and small-sized firms of the two countries.The two sides have also set up a standardization cooperation committee to work together to probe into and draw up the international standard, and intensify the cooperation in the field of accreditation, in addition to mapping out 5-year agricultural cooperative plan, expanding the innovative cooperative platform in life sciences, founding the professional education cooperation league and model partnership among higher learning institutes, as well as exchanges in hospital management."So far, all these cooperations are making steady headway and are gradually fulfilled," the ambassador said.Referring to the Sino-German economic and trade cooperations, Wu said that the trade volume between the two countries in 2010 reach 142.4 billion dollars, accounting for almost 30 percent of that between China and the whole EU, which is of special significance particularly against the backdrop of a looming recession overshadowing world economic prospect and the escalating eurozone debt crisis.The bilateral trade volumes has totaled up to 127 billion dollars during the first nine months of the year, according to the ambassador, expressing his belief that it is convincing that the Sino-German trades are sure to scale new height, not to mention the reciprocal investment that has gained strong momentum.Wu stressed that China and Germany, both are important economies and large exporters in the world, and claim as the mutual biggest trade partners in respective regions, on account of that, both countries share extensive common and interests and solid foundation to further cooperation, adding that both sides should walk hand in hand to promote the all-around and sustainable development of the economy, not only for both countries but also for the whole world, and turn against whatsoever forms of trade and investment protectionism.He also pointed out that China and Germany have conducted very active interchanges in terms of human and culture, sciences and technologies as well as education, exemplifying that Chinese-German Year of Science and Education program was held successfully last year, as up to 45 universities in Germany held "China Week" simultaneously, which is unprecedented."The project entitled 'Germany and China -- Moving Ahead Together' concluded with success at the Shanghai World Expo and thus tremendously enhanced mutual understanding and friendships between the two peoples," Wu said.China will continue to invite some 200 German middle school students to take part in the summer camp in China this year, while the Year of Chinese Culture will be held in Germany next year to mark the 40th anniversary of the establishment of bilateral diplomatic relations, as all the preparatory works are fully underway, the ambassador said.Wu said that the two sides attached great importance to the visit of Jia Qinglin, chairman of the National Committee of the Chinese People's Political Consultative Conference (CPPCC)."During the visit, Jia will meet a number of prominent political and business figures in Germany, including German President Christian Wulff, and convey the supports by the Chinese government and people to EU countries' action in dealing with the eurozone debts crisis," Wu said.The visit will inject new vitality to Sino-German relations by increasing common agreements and friendships, while intensifying mutually-beneficial cooperations in various fields, said Wu.