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WASHINGTON, Jan. 2 (Xinhua) -- A hormone derived from visceral fat called adiponectin may play a role as a risk factor for development of all-cause dementia and Alzheimer's disease (AD) in women, according to a study published on Monday in online issue of the Archives of Neurology.Thomas van Himbergen, from Human Nutrition Research Center on Aging at Tufts University, and colleagues measured levels of glucose, insulin, and glycated albumin, as well as C reactive protein, lipoprotein associated phospholipase A2, and adiponectin in the plasma of patients at the 19th biennial examination (1985 -- 1988) of the Framingham Heart Study.The 840 patients (541 women, median age of 76 years) were followed-up for an average of 13 years and evaluated for signs of the development of AD and all-cause dementia. During that time, 159 patients developed dementia, including 125 cases of AD. After adjustment for other dementia risk factors (age, low plasma docosahexaenoic acid, weight change) only adiponectin in women was associated with an increased risk of all-cause dementia and AD."It is well established that insulin signaling is dysfunctional in the brains of patients with AD, and since adiponectin enhances insulin sensitivity, one would also expect beneficial actions protecting against cognitive decline," the authors write. "Our data, however, indicate that elevated adiponectin level was associated with an increased risk of dementia and AD in women."

HONOLULU, United States, Nov. 12 (Xinhua) -- Chinese President Hu Jintao said here Saturday that China will deepen economic structural reform, grow a green economy, enhance protection of intellectual property rights and open wider to the outside world.Hu made the remarks at the CEO summit of the Asia-Pacific Economic Cooperation (APEC) ahead of the APEC Economic Leaders' Meeting.Hu noted that while China's economy has grown steadily and the country is opening wider to the outside world, China still faces the major challenge of unbalanced, uncoordinated and unsustainable development.China, he said, will continue to deepen reform and opening-up, improve people's livelihood and promote sustained, steady and fairly fast economic growth and social harmony and stability.Hu then laid out a four-point proposal to achieve the goals, with the first being that China will deepen economic structural reform and improve business and investment environment.Second, China will honor its commitment to growing a green economy and promoting the conservation culture, Hu said.From 2011 to 2015, China's investment in the environmental sector will double that of the previous five years to about 3.1 trillion yuan (about 488.5 billion U.S. dollars), Hu said, adding that China's green industry is a key area for foreign investment.Third, China will step up protection of intellectual property rights and make itself a country driven by innovation, he said.China will vigorously boost scientific and technological innovation and turn enterprises into major players of such innovation, while further improving the legal system for intellectual property rights protection, he said.Fourth, China will open wider to the outside world and take an active part in global economic governance and regional cooperation, Hu said.China, he said, will give equal importance to import and export and focus more on increasing import while maintaining a stable level of export.Noting that China's development constitutes an important force driving regional and global economic growth, Hu said that China will work together with others to create a better future for the Asia-Pacific region.

WELLINGTON, Oct. 26 (Xinhua) -- New Zealand's geothermal scientists will be collaborating with the world's leading geothermal researchers after the country joins an elite international group next month.New Zealand would be admitted to the International Partnership for Geothermal Technology (IPGT) in Melbourne, Australia, on Nov. 16, Science and Innovation Minister Wayne Mapp announced Wednesday."Geothermal energy is one of our most important renewable energy resources with huge potential for growth," said Mapp."This recognition of our geothermal research programs will allow our scientists to collaborate with an elite group of researchers in the United States, Australia, Switzerland and Iceland."Scientists from New Zealand research organizations were committed to finding new ways to harness the country's extensive geothermal fields, said Mapp."Innovation and clean energy is a big part of enabling New Zealand to grow the economy," said Mapp."This new international partnership will help keep us at the forefront of technology developments such as enhanced geothermal systems."Established in 2008, the IPGT seeks to develop advanced, cost- effective geothermal energy technologies through international research co-operation.New Zealand's geothermal electricity generation rose by 21 percent last year and accounted for 13 percent of total electricity generation, its highest recorded level.The government is aiming to expand geothermal energy with three large geothermal projects in the pipeline by 2020.The country's biggest geothermal project is to be Contact Energy's 250-megawatt Tauhara II geothermal project.The project, being developed northeast of the central North Island town of Taupo, is expected to produce enough electricity to meet the needs of around 270,000 homes when it becomes fully operational in 2015.

BEIJING, Jan. 20 (Xinhua) -- China will regulate the production and sale of cosmetic colored contact lenses by including them in its list of items classified as "medical apparatus."Some people wear such non-corrective colored contacts to change or enhance eye color for cosmetic and fashion purposes.As these contacts are not for vision correction and medication purposes, they are currently off limits to the country's medical administration and regulators, said a statement published on the website of the State Food and Drug Administration on Thursday.However, with the increasingly popular use of cosmetic contacts, safety and quality problems due to the regulation loophole are likely to harm consumers' health, and the administration has decided to expand the current medical regulation on contact lenses to cover cosmetic ones, the statement said.It explained that the administration will soon issue a notice to ban the manufacture and sale of these contacts without proper registration and licenses.The statement also warned consumers of the risks of these contacts and suggested they carefully choose and use such products.

BEIJING, Oct. 24 (Xinhuanet) -- There is no evidence to prove that using a cell phone can increase the risks of brain cancer, suggested a lastest study by Danish researchers.To arrive at the result, the researchers examined the health records from 1990 to 2007 for 358,403 Danish cell phone plan subscribers.They found that among people using cell phones for as long as 13 years or more, the cancer risks were almost the same as for non-subscribers.The finding, published in the British Medical Journal last week, alleviated the fear among the world's 5 billion cell phone users.Five months ago, a statement from the World Health Organization's International Agency for Research on Cancer (IARC) sparked fear in cell phone users around the world because it said that cell phone use might cause brain cancer.However, the finding could not rule out the risk of brain cancer triggered by heavy use of cell phones, admitted Patrizia Frei of the Danish Cancer Society's Institute of Cancer Epidemiology, lead author of the study.Frei added, cited by CNN, "There are still some open questions, about greater amounts of use, and about the effects on children."The IARC did not give formal response to the study, but it offered some ways for cell phone consumers to reduce possible risks months ago.Texting and using hands-free sets for voice calls lower exposure to potentially harmful radiation, compared to device-to-ear voice calls, by at least 10-fold, IARC stated, reported by the New York Daily News.

来源：资阳报