中山为什么大便时带血(中山得了痔疮治疗要多少钱) (今日更新中)

OTTAWA, Nov. 21 (Xinhua) -- The leader of World Health Organization (WHO) Margaret Chan said in Canada on Monday that countries must make the health of women and children their highest priority.Speaking at a luncheon in Gatineau, Quebec, Chan said that maternal and infant health is the most pressing public health issue in the world.She made the remarks just hours after WHO announced Chan was the only candidate for the position on WHO director-general when Chan's appointment expires next year.An executive board meeting in Geneva between Jan. 16 and 23 will decide whether to put the name forward to the WHO Assembly in May, which would make the final decision regarding the appointment.Chan, a former health chief in China's Hong Kong, was elected director-general of the WHO in Nov. 2006.Before her tenure with WHO, Chan was head of public health in Hong Kong, where she managed the city's response to the world's first outbreak of the deadly H5N1 bird flu virus and an outbreak of Severe Acute Respiratory Syndrome (SARS).Speaking in Gatineau, Chan, who earned her medical degree in Canada, said that she never expected to rise to such a lofty position."I just wanted to be a doctor. I just wanted to take care of women and children. When I was studying in Canada, I thought I would get married and have children. I never guessed I'd do anything like head the World Health Organization," she said.She said that she will continue to focus the WHO's attention on mothers and young children.Chan said that it's difficult to know how many mothers and young children die of preventable diseases, since more than 80 countries don't keep accurate death records, but she said that millions of children under five years of age are dying.Millions more are growing up physically and mentally stunted because of poor nutrition and medical care, she added."Without proper nutrition, the stunting we are seeing is horrific," she said. Unless babies have good food, including being breast-fed as infants, they grow up physically and mentally under-developed, Chan said."The first few years of a child's life are make or break," she said.Chan and the WHO held a meeting of the Expert Panel on Maternal and Child Health in Canada from Nov. 18 to Nov. 21. The panel was established by the United Nations Commission on Information and Accountability for Women's and Children's Health Report. At the invitation of the WHO, the Commission was co-chaired by Canada's Prime Minister Stephen Harper and the President of Tanzania, Dr. Jakaya Kikwete.Chan says she's hopeful funding from developed nations will continue to expand, despite the debt crisis facing many of them. The situation resembles the 1970s, with spikes in energy and food prices along with cuts to national budgets to restrain debt.Chan said she is relieved the International Monetary Fund will not press for public health cuts in countries that are struggling with debt.Beverley J. Oda, Minister of International Cooperation who is responsible for Canada's official aid affairs, delivered remarks at the luncheon on improving the health of children and mothers locally and globally."I am particularly proud of the strong partnership between the WHO and Canada in advancing global health, and working towards improvements that will help us achieve our shared goals," she said.Last Friday, Oda announced 25 new initiatives to further Canada 's support to 23 projects in Africa concerning Children and Youth, Food Security and Sustainable Economic Growth.Seven of these are multi-country projects supporting efforts to prevent the mother-to-child transmission of HIV/AIDS, further improving child health, or increasing the capacity of African Regional Technical Centres. The others are targeted to support work in a range of individual African countries by working with Canadian, international and African-based organizations.

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.

WASHINGTON, Dec. 22 (Xinhua) -- The journal Science on Thursday chose the HPTN 052 clinical trial, an international HIV prevention trial as the 2011 Breakthrough of the Year.The study found that if HIV-infected heterosexual individuals begin taking anti-retroviral medicines when their immune systems are relatively healthy as opposed to delaying therapy until the disease has advanced, they are 96 percent less likely to transmit the virus to their uninfected partners. Findings from the trial, first announced in May, were published in the New England Journal of Medicine in August.The study was funded by the U.S. National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health."The HPTN 052 study convincingly demonstrated that anti- retroviral medications can not only treat but also prevent the transmission of HIV infection among heterosexual individuals," said NIAID Director Anthony Fauci in a statement. "We are pleased that Science recognized the extraordinary public health significance of these study results."Science's list of nine other ground-breaking scientific achievements from 2011 include:The Hayabusa Mission: After some near-disastrous technical difficulties and a stunningly successful recovery, Japan's Hayabusa spacecraft returned to Earth with dust from the surface of a large, S-type asteroid. This asteroid dust represented the first direct sampling of a planetary body in 35 years, and analysis of the grains confirmed that the most common meteorites found on Earth, known as ordinary chondrules, are born from these much larger, S-type asteroids.Unraveling Human Origins: Studying the genetic code of both ancient and modern human beings, researchers discovered that many humans still carry DNA variants inherited from archaic humans, such as the mysterious Denisovans in Asia and still-unidentified ancestors in Africa. One study this year revealed how archaic humans likely shaped our modern immune systems, and an analysis of Australopithecus sediba fossils in South Africa showed that the ancient hominin possessed both primitive and Homo-like traits.Capturing a Photosynthetic Protein: In vivid detail, researchers in Japan have mapped the structure of the Photosystem II, or PSII, protein that plants use to split water into hydrogen and oxygen atoms. The crystal-clear image shows off the protein's catalytic core and reveals the specific orientation of atoms within. Now, scientists have access to this catalytic structure that is essential for life on Earth -- one that may also hold the key to a powerful source of clean energy.Pristine Gas in Space: Astronomers using the Keck telescope in Hawaii to probe the faraway universe wound up discovering two clouds of hydrogen gas that seem to have maintained their original chemistry for two billion years after the big bang. Other researchers identified a star that is almost completely devoid of metals, just as the universe's earliest stars must have been, but that formed much later. The discoveries show that pockets of matter persisted unscathed amid eons of cosmic violence.

BEIJING, Jan. 9 (Xinhua) -- The United States Treasury Secretary Timothy Geithner will discuss economic ties and exchange views with Chinese officials on the global economic situation during his trip to China, Foreign Ministry spokesman Liu Weimin said on Monday.Liu said at a regular press briefing that Geithner will visit China from Jan. 10 to 11 as the U.S. President's special representative. Premier Wen Jiabao, Vice President Xi Jinping, Vice Premier Li Keqiang and Vice Premier Wang Qishan will meet with him during the visit.Liu said China and the U.S. have agreed to build a partnership of cooperation based on mutual respect and mutual benefit."The global economic and financial situation is facing severe challenges. Further strengthening China-U.S. economic and trade cooperation will be helpful in meeting these challenges," Liu said."China has proposed further promoting the two countries' economic and trade cooperation and hopes the U.S. will work with China toward this end," Liu said.

BEIJING, Nov. 5 (Xinhua) -- China's top political advisor Jia Qinglin's official goodwill visit to Greece, the Netherlands and Germany has deepened the friendship, promoted cooperation and enhanced understanding between China and the three nations, a Chinese official says.The visit was important in further deepening the friendship and mutual trust, promoting pragmatic cooperation and pushing forward the healthy development of relations between China and Europe, said Wang Shenghong, vice secretary general of the National Committee of the Chinese People's Political Consultative Conference (CPPCC).Jia, chairman of the CPPCC National Committee, had in-depth exchanges of views and reached broad consensus with government and parliament leaders of the three countries on issues related to bilateral ties and international and regional issues of common interest, said Wang, who accompanied Jia on the tour from Oct. 23 to Nov. 4.Jia Qinglin (R), chairman of the National Committee of the Chinese People's Political Consultative Conference, meets with Greek President Karolos Papoulias in Athens, Greece, on Oct. 24, 2011.During his visits, Jia also witnessed the signing of 15 inter-governmental agreements and commercial contracts, had extensive contact with people from different walks of life and visited some big-name companies.STRENGTHEN POLITICAL MUTUAL TRUST AND BUILD UP BILATERAL TIESDuring meetings and talks with leaders of the three countries, Jia expressed China's readiness to maintain the high-level exchanges of visits, build up political mutual trust, advance pragmatic cooperation, promote people-to-people and cultural exchanges and strengthen coordination in international affairs, Wang said.Jia said China is ready to work with the three nations to further advance bilateral ties and China-European Union (EU) relations.Greece's government and parliament leaders thanked China for its precious support at a time when Greece is being badly hurt by the financial crisis. Dutch leaders expressed their willingness to strengthen dialogue and cooperation with China in their joint response to the Europe debt crisis and other challenges. And German leaders praised China's positive role in overcoming the effects of the international financial crisis and stabilizing the world economy, Wang said.

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