濮阳东方医院妇科技术先进(濮阳东方男科医院割包皮手术口碑) (今日更新中)

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.

BEIJING, Sept. 30 (Xinhuanet) -- The number of children being prescribed stimulants to treat attention deficit hyperactivity disorder (ADHD) has been steadily rising in the U.S. since 1996, researchers found.The finding was contained in a report released Wednesday in the U.S. medical journal Psychiatry.About 7.8 percent of children aged 4 to 17 in 2003 were diagnosed with ADHD, compared to 9.5 percent in 2007, according to the data gathered from the Health Resources and Services Administration's National Survey of Children's Health.And compared to 0.6 percent in 1987, 2.9 percent of children under 19 in 2002 have been prescribed stimulants, the report said.The finding raises the researchers' concern as stimulants have side effects such as decreased appetite, leeplessness and even heart-related damage, the report warned."Stimulant medications work well to control ADHD symptoms, but they are only one method of treatment for the condition. Experts estimate that about 60 percent of children with ADHD are treated with medication." says researcher Benedetto Vitiello, MD, of the U.S. National Institute of Mental Health."There is ongoing concern that these drugs may not be used properly, especially when they are prescribed to college students or children in their late adolescence who are more in charge of their care and may not be using the medications as prescribed." he added.

BEIJING, Jan. 22 (Xinhua) -- On the eve of Spring Festival, people across China marked the last moments of the Year of the Rabbit with cheerful celebrations, while exchanging their wishes for a better and prosperous Year of the Dragon.Spring Festival, or Chinese New Year, falls on Monday but the week-long holiday started Sunday, with families, urban and rural as well as rich and poor, dining together and watching the year out in cheer.In a new community in Zhengzhou, capital of central China's Henan province, villagers relocated there for the nation's South-North Water Diversion project have their festival feasts paid for by the government."I've been buzzing around from office to office to get the festival allowances. Today is the third time money has been doled out before Spring Festival," said Lu Songtao, director of the resident committee of Jinyuan.The 60 households in Jinyuan are among the 330,000 people China has resettled for the central route of the massive water project, which aims to transport water from the Yangtze River to the country's drought-prone northern regions, including Beijing.Two month after bedding down in new homes with the help of government subsidies, villagers now wish their careers can also take off in the Year of the Dragon."There are many factories nearby, and I will start looking for a job right after the New Year, either in a battery plant or a food processing factory," said villager Liu Guizhi.In Wuhan, capital of Hubei province, sanitation workers who chose to stay on duty rather than be with their families during the festival ended up dining with the mayor."I'd like to thank you for a year's hard work that has kept the city beautiful," said Tang Liangzhi, mayor of Wuhan, at a banquet held on Saturday for 100 representatives of street cleaners.Though Spring Festival is an important family occasion for most Chinese, many cleaners could not leave their jobs as the week-long fireworks frenzy usually litters city streets with tonnes of cardboard and scraps of paper."I had been so busy today that I came to the banquet right from the street, with the my uniform on," said 51-year-old Yang Houjian."But I am deeply moved -- I feel my work is honored by the whole society," he said.This year's Spring Festival also brings a festive atmosphere to Xinjiang and Tibet, though celebrating the festival is not a tradition for many ethnic groups there. Young people, in particular, are mesmerized by the festival's "exotic" flavor."My friends from the Han community told me that it's their tradition to wear something red when their animal signs coincide with that of the year. So I bought a red bracelet as I'm a 'Dragon,'" said 23-year-old Hanati Kizihan, who is a Kazakh in Urumqi.Many households and institutions in Tibet have also put up national flags and portraits of Chinese leaders in honor of the national festival. On Sunday, a gigantic picture of China's central leaderships, represented by Mao Zedong, Deng Xiaoping, Jiang Zemin and Hu Jintao, was unveiled at the regional government building in Lhasa to celebrate the festival. 

BEIJING, Jan. 21 (Xinhua) -- As the Chinese Spring Festival travel rush enters its peak period, more work staff and transport resources have been deployed to ensure safe and convenient transport during the world's largest annual human migration.At 8 a.m. on Jan. 20, two days ahead of the Chinese New Year, Dong Leihong, duty officer at the road network center with the Ministry of Transport (MOT), sat before a huge monitoring screen that displayed real-time highway transport conditions nationwide."Good news! The fog has almost all lifted. Only some local lines in Shanxi province have been blocked by snow. Road transport in the country's other regions is normal," Dong said.The screen showed that some work staff at local toll stations in Shanxi were clearing away the snow, while vehicles were running smoothly despite rain on a section of the Shanghai-Kunming Highway located in eastern Jiangxi province.About 840,000 passenger cars were put into service to meet the day's road travel demand, MOT Spokesman He Jianzhong said at the center. An estimated 82.9 million passenger trips by bus were recorded that day, an increase of 10.8 percent from a year earlier.Passenger trips are expected to rise 9.1 percent year-on-year to hit 3.16 billion during this year's festival travel period, prompting the country's transport system to mobilize more resources.Moreover, the railway, aviation and public security sectors have also adopted multiple measures to embrace the heat of the ongoing 40-day travel rush that started on Jan. 8.At Beijing Railway Station's control center, where the exact information of the location and speed of an operating train as well as train failures is available, more than 80 dispatchers were hired to coordinate the operations of passenger and cargo trains running in north China.Meanwhile, large numbers of police, railway workers and volunteers worked in the whipping winter wind to help with boarding at Beijing West Railway Station.The country required all train ticket buyers to register with their names and have their ID cards checked prior to boarding, a real-name system introduced to stem ticket scalping that has plagued the Spring Festival travel rush for years.Counters dealing with domestic flights also extended service hours at the Beijing Capital International Airport, and more staff members were on site to help with security checks, said Li Guanghui, the airport's general manager.The airport saw about 140,000 departure passengers on Jan. 20, an increase of 29 percent from a year earlier, according to Li.To help road travellers deal with emergencies, the Ministry of Public Security established 8,300 service stations nationwide to provide car repair, medical care, rest and guidance services.Some local transport departments also prepared drinking water, food, and cotton clothes to ensure supplies in case of traffic jams on highways.The local traffic police department in Zhaoqing, a city in southern China's Guangdong province, set up 17 rest stops for long-distance motorcyclists at several national highways that pass through the city.The move aims to provide food and other emergency services for the 20,000 people that travel by motorcycle on these highways each day during the festival travel rush.The Spring Festival, or "Chunjie" in Chinese, is a time for family reunions. It is the country's most important festival.

TAIYUAN, Jan. 9 (Xinhua) -- China successfully launched the Ziyuan III satellite Monday from the Taiyuan Satellite Launch Center in northern Shanxi province.The satellite, a high-resolution remote-sensing satellite for civilian use, was launched at 11:17 a.m. aboard a Long March 4B rocket, according to a statement from the center.The satellite, weighing 2650 kg, entered an orbit of 500 km above the Earth about 12 minutes after it was launched. It has a designed life expectancy of five years.According to the center, the satellite is tasked with offering services to aid the country's land-resources surveys, natural-disaster prevention, agriculture development, water-resources management, and urban planning.The rocket also carried a satellite from Luxemburg, according to the launch center.The orbiter was developed and produced by the China Academy of Space Technology, a subsidiary of China Aerospace Science and Technology Corporation (CASC).The Long March 4B rocket is developed by Shanghai Academy of Spaceflight Technology, another CASC subsidiary. Monday's mission marked the 156th flight of China's Long March series of carrier rockets.

来源：资阳报