济南一直勃起怎么解决(济南可以治男人阳痿) (今日更新中)

LOS ANGELES, April 2 (Xinhua) -- People taking antidepressants may be more likely to develop thicker arteries which may raise the risk of heart disease and stroke, a new study suggests.Depression can heighten the risk for heart disease, but the effect of antidepressant use is separate and independent from depression itself, according to the study make public by the American Association for the Advancement of Science (AAAS) on Saturday.The data suggest that antidepressants may combine with depression for a negative effect on blood vessels, said study first author Amit Shah, MD, a cardiology fellow at Emory University School of Medicine.Study findings will be presented on April 5 at the American College of Cardiology meeting in New Orleans, according to the AAAS.The study included 513 middle-aged male twins who both served in the U.S. military during the Vietnam War. Twins are genetically the same but may be different when it comes to other risk factors such as diet, smoking and exercise, so studying them is a good way to distill out the effects of genetics.Researchers measured carotid intima-media thickness - the thickness of the lining of the main arteries in the neck -- by ultrasound. Among the 59 pairs of twins where only one brother took antidepressants, the one taking the drugs tended to have higher carotid intima-media thickness (IMT), even when standard heart disease risk factors were taken into account.The effect was seen both in twins with or without a previous heart attack or stroke. A higher level of depressive symptoms was associated with higher IMT only in those taking antidepressants."One of the strongest and best-studied factors that thickens someone's arteries is age, and that happens at around 10 microns per year," Shah said. "In our study, users of antidepressants see an average 40 micron increase in IMT, so their carotid arteries are in effect four years older."Antidepressants' effects on blood vessels may come from changes in serotonin, a chemical that helps some brain cells communicate but also functions outside the brain, Shah said."I think we have to keep an open mind about the effects of antidepressants on neurochemicals like serotonin in places outside the brain, such as the vasculature. The body often compensates over time for drugs' immediate effects," Shah said. " Antidepressants have a clinical benefit that has been established, so nobody taking these medications should stop based only on these results. This isn 't the kind of study where we can know cause and effect, let alone mechanism, and we need to see whether this holds up in other population groups."

JINAN, May 14 (Xinhua) -- Chinese scientists said Saturday that they have found a new species of giant theropod dinosaur in the eastern province of Shandong.The new species, described as a close relative of Tyrannosaurus rex (T. rex), has been named "Zhuchengtyrannus magnus". Paleontological experts found it has unique upper jawbones after examining the skull and jawbones discovered in the city of Zhucheng.It was estimated to be about 11 meters long and 4 meters tall, weighing close to 7 tonnes."We discovered two kinds of tyrannosaurus fossils here and the identity of the other one still remains unclear," said Xu Xing, a researcher at the Institute of Vertebrate Paleontology and Paleoanthropology under the Chinese Academy of Sciences."We've named the new genus Zhuchengtyrannus magnus, which means the 'Tyrant from Zhucheng' because the bones were found in Zhucheng," Xu said.The bones were a few centimeters smaller than the similar bones in the largest T. Rex specimen, so there was no doubt that Zhuchengtyrannus was a huge tyrannosaur, Xu said.According to Xu, Zhuchengtyrannus magnus belonged to a specialized group of gigantic theropods called tyrannosaurines which existed in North America and eastern Asia during the Late Cretaceous Period that dated back about 65 to 99 million years.All tyrannosaurs were carnivorous, bipedal animals that generally had small arms and large skulls. Among the tyrannosaurs, the tyrannosaurines were the largest and characterized by having just two fingers on each hand and large powerful jaws to deliver a bone crushing bite. They were likely both predators and scavengers.The fossil quarry in Zhucheng contains one of the largest concentrations of dinosaur bones in the world. At least 10 dinosaur species have been found in three rounds of excavations since the 1960s, including Tyrannosaurus and Hadrosaurs.

SHANGHAI, Jan. 29 (Xinhua) -- Three Carrefour stores were fined 500,000 yuan (75,988 U.S. dollars) each on Saturday for overcharging customers in east China's metropolitan Shanghai, said municipal price regulators.The fine is the highest for such wrongdoing, with the tickets being issued Saturday morning.The three stores were also ordered to correct their illegal pricing and refund overcharged customers, said the regulators.A hearing will be held to decide the final amount of the fine. Carrefour representatives will be able to respond to the charges at the hearing, according to regulators.China's price regulator announced last week that it had found several retailers cheating customers, which included 11 of Carrefour's China stores.Carrefour China promised customers Saturday that it would provide refunds of five times the difference between advertised prices and incorrect prices charged at registers, after it was blacklisted by Chinese authorities due to deceptive pricing.Chen Bo, spokesperson with Carrefour China, apologized to Chinese customers during an exclusive interview with Xinhua.Chen said the company has started to work on this pricing issue.Carrefour China has established both short-term and long-term measures to resolve the issue, Chen added."We will have our special control group conduct internal price inspections, with wide coverage and high frequency," Chen said.Chen said the refund policy would be permanently implemented at Carrefour's 182 outlets in China, with non-implementation of the policy being regarded as a violation of company rules.The National Development and Reform Commission, China's top economic planner, also urged authorities to step up price checks ahead of the Spring Festival, which falls on Feb. 3 this year.The Spring Festival holiday is usually the busiest shopping season, as the public makes large purchases of food and gifts for families and friends.

BEIJING, March 19 (Xinhua) -- Radiation leaks following explosions at the Fukushima Daiichi nuclear power plant in Japan will not affect China's environment and the health of its citizens during the next three days, authorities said Saturday.China's National Nuclear Emergency Coordination Committee made the announcement based upon analyses of environmental monitoring, meteorological forecasts, and ocean currents.The Beijing-based Regional Specialized Meteorological Center, which is affiliated with the World Meteorological Organization, issued its forecast on Saturday afternoon, saying that the radioactive leakages in Japan would not affect China over the next three days.The country's State Oceanic Administration on Saturday announced that no abnormalities were detected in terms of atmospheric radiation over the East China Sea, the northern part of the South China Sea, and the central and northern regions of the Yellow Sea.The administration predicts that the ocean currents near Fukushima would mainly travel eastward from Japan over the next three days.Furthermore, the country's Ministry of Environmental Protection announced that China's environment remains normal based upon the monitoring of radiation levels.

BEIJING, Jan. 30 (Xinhua) -- Chinese President Hu Jintao said Sunday more attention should be paid to raising people's living standards while striving for economic growth.Hu made the remarks at a symposium with non-Communist parties and individuals to mark the Spring Festival, or the Lunar New Year, which falls on Feb. 3 this year.Hu urged the parties and social groups to pursue the people-first principle and help the government to better serve the people."We should always make the improvement of people's lives an important starting point in promoting development in a scientific way and enhancing social harmony," Hu said.Chinese President Hu Jintao (C), also general secretary of the Communist Party of China (CPC) Central Committee and chairman of the Central Military Commission, delivers an important speech at a symposium with non-Communist parties and individuals to mark the Spring Festival in Beijing, capital of China, Jan. 30, 2011.He said the government would focus on the transformation of its economic development pattern, and try to achieve its economic targets this year, which is also the start of the 12th five-year period (2011-2015).Hu hoped the non-Communist parties and individuals would concentrate on promoting scientific development and put forward practical suggestions for achieving comprehensive, coordinated and sustainable development.This year marks the 90th anniversary of the founding of the Communist Party of China (CPC).Hu said the past 90 years had proved that unison of ideas, targets and actions in the multi-party cooperation system under CPC leadership guaranteed the country to achieve progress in revolution, development and reform.Hu expressed appreciation for the contributions of non-Communist parties and individuals to social and economic development last year."We must rely on all Chinese people, including non-Communist parties, societies, ethnic groups and people from all walks of life and in different strata to achieve this year's goals for economic and social development," said Hu.At the event, Hu also extended New Year's greetings and best wishes to all people from the non-Communist parties and the All-China Federation of Industry and Commerce and those without party affiliations.Non-Communist party leaders at the gathering gave opinions on issues such as multi-party cooperation, rural social security system, water conservation, strategic emerging industries, education and cultural exchanges across the Taiwan Straits.The meeting was chaired by Jia Qinglin, chairman of the National Committee of the Chinese People's Political Consultative Conference. Vice President Xi Jinping and Vice Premier Li Keqiang were present at the gathering.

来源：资阳报