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WASHINGTON, Nov. 22 (Xinhua) -- Long-term coffee consumption may be associated with a reduced risk for endometrial cancer, according to a study published online Tuesday in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.Edward Giovannucci, professor of nutrition and epidemiology at the Harvard School of Public Health, said that coffee is emerging as a protective agent in cancers that are linked to obesity, estrogen and insulin."Coffee has already been shown to be protective against diabetes due to its effect on insulin," said Giovannucci, a senior researcher on the study. "So we hypothesized that we'd see a reduction in some cancers as well."The researchers observed cumulative coffee intake in relation to endometrial cancer in 67,470 women who enrolled in the Nurses' Health Study. During the course of 26 years of follow-up, researchers documented 672 cases of endometrial cancer.Drinking more than four cups of coffee per day was linked with a 25 percent reduced risk for endometrial cancer. Drinking between two and three cups per day was linked with a seven percent reduced risk.A similar link was seen in decaffeinated coffee, where drinking more than two cups per day was linked with a 22 percent reduced risk for endometrial cancer.Giovannucci said that he hopes this study will lead to further inquiries about the effect of coffee on cancer because in this and similar studies, coffee intake is self-selected and not randomized.

BEIJING, Nov. 7 (Xinhua) -- Chinese President Hu Jintao will meet with his U.S. counterpart, Barack Obama, at the 19th Asia-Pacific Economic Cooperation (APEC) Informal Leadership Meeting, said China's Assistant Foreign Minister, Wu Hailong, on Monday.He said the APEC summit will be held from Nov. 12 to 13 in Hawaii, with the theme of "seamless regional economy."According to Wu, speaking at a Foreign Ministry media briefing, Hu will attend the "APEC Leaders' Informal Meeting, Leaders' Dialogue with Representatives from APEC Business Advisory Council, and APEC CEO Summit."China hopes the APEC members will implement the economic growth strategy agreed last year, striving to achieve a balanced, inclusive, sustainable, innovative and safe economic growth, said Wu.China expects the APEC members to comprehensively promote regional trade and investment liberalization, he said, adding that all member states should fulfill their commitments and oppose all forms of trade protectionism.Wu said APEC should strengthen economic and technical cooperation to enhance the development ability of the developing members, and therefore to achieve common prosperity."APEC members generally hold positive attitudes toward U.S. proposals in various fields such as green growth, innovation policy. But some of the U.S.'s expected outcomes are beyond the capacity of the developing members, and they have expressed their difficulties and concerns," Wu said."However, all parties hope this meeting will achieve balanced and practical results".Assistant Commerce Minister Yu Jianhua said major topics to be discussed at the summit would include pushing forward the Doha Round negotiations, opposing trade protectionism, promoting green growth, and cooperation on developing regulations to govern emerging industries.He said China hopes the meeting will further promote the liberalization and facilitation of trade and investment in the Asia-Pacific region, push forward economic and technology cooperation, support multilateral trade systems, oppose trade protectionism, so as to inject vitality into world economic recovery and growth.On safeguarding the multilateral trade system, Yu said the decade-long Doha round talks have entered a critical period and the summit should be a strong voice for the early completion of the talks as well as joint resistance against trade protectionism.He said the APEC members should make joint efforts to remove discriminatory trade restrictions on high-tech products, and promote technology transfer and cooperation, so as to enable all members to benefit.On green growth, he said as APEC members differ sharply in their basis, conditions and levels in developing a green economy, the liberalization of environmental products and services should be pushed steadily.He also called on the developed economies to enhance capital and technical support for the developing economies, helping them in achieving their potential for sustainable development.

BEIJING, Oct. 11 (Xinhuanet) -- For women, chocolate consumption needs to be high, which can lower stroke risk, researchers from the Karolinska Institute, Sweden, reported in the Journal of the American College of Cardiology. The consumption of chocolate has been demonstrated to reduce diastolic and systolic blood pressure in randomized, short-term trials. Chocolate has also been shown to improve endothelial and platelet function, and to improve insulin resistance.Susanna Larsson Ph.D. and the team conducted the research on the Swedish Mammography Cohort's 33,372 adult females aged from 49 to 83 years without history of stroke, coronary heart disease, stroke, or diabetes.They found those who ate at least two chocolate bars each week appeared to have a 20 percent lower risk of stroke, compared to those of the same age and weight who rarely or never ate chocolate. But, they found, it was only those in the highest quartile of chocolate consumption who had a significant drop in stroke risk.The researchers explained that cocoa has flavonoids - powerful antioxidants that can suppress LDL, low-density lipoprotein, that can cause stroke and other cardiovascular diseases.

SANTO DOMINGO, Sept. 30 (Xinhua) -- Haitian health authorities on Friday said the number of deaths caused by cholera increased to 6,435 in the Caribbean country since October 2010.The Haitian Health Ministry said the number of people infected with cholera almost reached half a million, although the ministry repeated the epidemic was decreasing.The report said 455,727 people had been treated due to cholera, and 242,205 had to be hospitalized.The western province of Artibonite suffered the plague most with 1,196 deaths. The southwest province of Nippes registered the smallest death toll of 181.Meanwhile, in the Haitian capital Port-au-Prince, 221 people have been killed since October 2010 when the epidemic first broke out in central Haiti.The epidemic is supposedly due to the spill of dregs from a Nepalese camp, which is part of the UN Stabilization Mission in Haiti (MINUSTAH).The Dominican Republic, a country neighboring the island country Haiti to the east, has also been suffering the disease since November 2010, which has killed at least 135 people there.