中山便血的原因肚子不疼中山切痔疮疼吗,中山粪便中带有血,中山混合痔医院哪家便宜,中山便血要肠镜检查痛苦吗,中山痔疮手术的最佳治疗方法,中山便血肚疼,中山那家医院看肛肠

WASHINGTON, Dec. 21 (Xinhua) -- The U.S. Food and Drug Administration (FDA) on Wednesday approved Isentress for the treatment of HIV-1 infection for children and adolescents.The drug is part of a class of medications called HIV integrase strand transfer inhibitors that works by slowing the spread of HIV in the body. It was first approved for use in adult patients in October 2007, under FDA's accelerated approval program."Many young children and adolescents are living with HIV and this approval provides an important additional option for their treatment," said Edward Cox, director of the Office of Antimicrobial Products in the FDA's Center for Drug Evaluation and Research.Isentress is a pill that can be taken twice daily, with or without food. The pill is also available in a chewable form. As the two tablet formulations are not interchangeable, the chewable form is only approved for use in children ages 2 to 11.A single, multi-center clinical trial of 96 children and adolescents aged 2-18 years with HIV-1 infection evaluated the safety and effectiveness of Isentress. These patients previously received treatment for HIV-1 infection. After 24 weeks of treatment with Isentress, 53 percent of these patients had an undetectable amount of HIV in their blood.According to the FDA, the most commonly reported severe, treatment-related side effects in patients taking Isentress include trouble sleeping and headache. The frequency of these side effects is similar for children and adults. One pediatric patient reported severe treatment-related insomnia, while another pediatric patient experienced a drug-related skin rash.

BEIJING, Nov. 1 (Xinhua) -- Commander-in-chief of China's manned space program Chang Wanquan announced early Tuesday that the launch of Shenzhou-8 unmanned spacecraft is successful.The spacecraft was successfully sent into the designated orbit after the blastoff at 5:58 a.m. at the Jiuquan Satellite Launch Center in northwestern desert area, carried by an upgraded Long March-2F rocket.It is heading to rendezvous with the Tiangong-1, or "Heavenly Palace-1" that was put into space on Sept. 29 for the country's first space docking.The docking, if successful, will pave the way for China to operate a permanent space station around 2020, and make the nation the world's third to do so.The launch was attended by Chinese Vice Premier Zhang Dejiang. It was also observed by senior experts from the European Space Agency and the German Aerospace Center at the launch site.The docking will happen within two days after the launch of the Shenzhou-8 at a height of 343 km above Earth's surface. The spacecraft will return to Earth after two docking operations.

BEIJING, Oct. 2 (Xinhua) -- Chinese archeologists have found evidence indicating that the mysterious ancient city of Loulan (Kroraina) once had highly-developed agricultural systems.Scientists from the Institute of Geology and Geophysics under the Chinese Academy of Sciences conducted remote sensing procedures, field investigations and sample testing in the area and found that there were once large tracts of farmlands in Loulan.The farmland featured regular and straight circumferences stretching for 200 to 1,000 meters as well as irrigation ditches running throughout, said Qin Xiaoguang, a member of the research team.Moreover, researchers found grain particles in the area's ground surface, which are very likely to be remains of crop plants, Qin said.These findings show that irrigation farming had been practiced in Loulan for at least 100 years, Qin said.Qin said they also found canal remains measuring 10 to 20 meters wide and 1.6 meters deep in the Loulan relics, indicating that the city, which is suspected of perishing in drought, was once rich in water resources.The ancient city was a pivotal stop along the famous Silk Road, but mysteriously disappeared around the third century AD.Previous historical records suggested that Loulan's economy was sustained by widespread agricultural activity, but no remains or other evidence had been found before the most recent discoveries.

SAN FRANCISCO, Nov. 12 (Xinhua) -- Apple has unveiled a worldwide replacement program for the first-generation iPod nano music player due to overheating battery issues, telling owners to stop using the product and get it replaced for free."Apple has determined that, in very rare cases, the battery in the iPod nano (1st generation) may overheat and pose a safety risk. Affected iPod nanos were sold between September 2005 and December 2006," said Apple in a notice posted late Friday on the support section of its official website.The company said the issue has been traced to a single battery supplier that produced batteries with a manufacturing defect. Since the product is five or six years old now, the likelihood of an incident increases.Owners of iPod nano can check the serial number on the back of the product to see if it is eligible for replacement. Apple promises a replacement unit about six weeks after the company received the affected one.The overheating battery issues of the first generation iPod nano have been known for years. In 2008, Japan's Ministry of Economy, Trade and Industry launched an investigation into Apple after dozens of iPod overheating cases were reported, including several incidents of iPod nanos toasting to the point of catching fire and causing minor burns to owners.Last August, a commuter train in Tokyo was delayed during rush hour when passengers complained of a strong burning smell from an overheating iPod nano that had burst apart.The portable music player also cost Apple a 22.5 million-U.S. dollar settlement in 2009 when a class action lawsuit in California alleged iPod nano is prone to scratches and its alleged defects were not disclosed by the company.

RIO DE JANEIRO, Oct. 11 (Xinhua) -- The World Health Organization (WHO) on Tuesday highlighted Brazil's efforts to stop tuberculosis (TB) in its territory.According to a report released by the organization, Brazil achieved significant and sustained improvement in the fight against TB in the past years.Along with Cambodia, China, Uganda, and Tanzania, Brazil is one of the five nations which succeeded in reducing TB death rate in 2010 by half compared with 1990.The number of TB cases in the world fell for the first time in 2010, said the WHO. But with 8.8 million cases, the disease remained a major global health problem, said the organization.Although the TB death rate had significantly dropped over the years, the disease killed 1.4 million people around the world in 2010 alone.