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RIO DE JANEIRO, March 25 (Xinhua) -- The number of dengue fever cases in Rio de Janeiro city this year has already surpassed 10,000, local health authorities said on Friday.According to the city's Health Secretariat, in less than three months, the number of confirmed dengue fever cases in Rio reached 10,158, exceeding the figures registered in the entire years of 2009 (2,723) and 2010 (3,120).In Rio de Janeiro state, the number of confirmed dengue fever cases reached 20,150, and the death toll rose to 18.This week, the first two cases of type-4 dengue fever in Rio de Janeiro state were confirmed in the city of Niteroi. The type-4 dengue fever is not more dangerous than the other types, but as the disease had not been registered in the region before, the local population has no immunity to it.As there are four different types of dengue fever, a person can develop the disease several times.The last epidemic of dengue fever in Rio de Janeiro state occurred in 2008 when 174 people died of the disease and some 250,000 cases of dengue were registered.

WASHINGTON, April 13 (Xinhua) -- The U.S. Food and Drug Administration (FDA) announced on Wednesday that it has approved the cPAX Aneurysm Treatment System for surgery on brain aneurysms that are difficult to manage because of their size and shape.An aneurysm is a bulge in the wall of a blood vessel, which can rupture as it increases in size, causing hemorrhage or death. Brain aneurysms often produce no symptoms until they grow and press on nerves in the brain, or until they begin to leak blood or rupture.Aneurysms can be repaired in two ways: surgeons can close the base of the aneurysm with a surgical clip, or use a technique commonly known as coiling, in which surgeons use a catheter to thread metallic coils through a blood vessel in the groin and into the blood vessel in the brain that contains the aneurysm. Surgeons then fill the aneurysm with the detachable coils, which block it from circulation and cause blood to clot, effectively destroying the aneurysm.Aneurysms larger than 10 millimeters are difficult to treat with clipping or coiling. The cPAX device system is indicated for use in those brain aneurysms."Like coiling, the cPAX Aneurysm Treatment System is a form of endovascular repair," said Christy Foreman, director of the Office of Device Evaluation in the FDA's Center for Devices and Radiological Health. "But instead of tiny metallic coils, it uses a special polymer material to fill the space within the aneurysm."According to the FDA, the cPAX device system is indicated for use in adults aged 22 and older and should not be used in patients with an active infection or in those in whom anticoagulation and antiplatelet therapy is contraindicated.

TOKYO, March 20 (Xinhua) -- Traces of radioactive iodine had been detected in Tokyo and the surrounding Kanto region, according to the results of an investigation of radioactivity in precipitation and dust conducted by the government, local media reported on Sunday.Radioactive iodine was found in Tokyo, Saitama, Chiba, Yamanashi, Tochigi and Gunma prefectures, the Kyodo News said, citing the Ministry of Education, Culture, Sports, Science and Technology. The ministry added that the levels detected in the investigation alone would not affect human health.An employee of Yamagata city office holds a Geiger counter to detect radiation when evacuees from the vicinity of Fukushima nuclear plant wish to be screened upon their arrival at an evacuation centre set in a gymnasium in Yamagata, northern Japan March 19, 2011, eight days after Japan's devastating earthquake and tsunami.The investigation was carried out following the nuclear crisis at the Fukushima Daiichi nuclear power plant, the government said Sunday.The ministry said that a separate research has already shown that radioactive materials in the air and tap water in Tokyo and the five prefectures pose no threat to human health, according to Kyodo News report.

WASHINGTON, April 3 (Xinhua) -- Scientists have confirmed that metabolic syndrome, a constellation of conditions that increases the risk of heart disease and diabetes, may also increase the risk of the two most common types of liver cancer, according to data presented at the American Association for Cancer Research's 102nd Annual Meeting 2011, held in Orlando, Florida on April 2-6.Katherine McGlynn, a senior investigator at the National Cancer Institute, said approximately one-third of the U.S. population has metabolic syndrome, which is defined as the co-occurrence of at least three of the following five conditions: raised blood pressure, elevated waist circumference, low HDL or "good" cholesterol, raised triglyceride levels and raised fasting plasma glucose levels.According to McGlynn, persons with these conditions may be at increased risk of developing hepatocellular carcinoma and intrahepatic cholangiocarcinoma.For the current study, researchers identified 3,649 cases of hepatocellular carcinoma and 743 cases of intrahepatic cholangiocarcinoma. They compared the medical history of these patients with the medical histories of 195,953 cancer-free adults.Statistical analyses showed that the persons with liver cancer were significantly more likely than cancer-free persons to have a prior history of metabolic syndrome: 37.1 percent of patients with hepatocellular carcinoma had pre-existing metabolic syndrome, as did 29.7 percent of patients with intrahepatic carcinoma; only 17.1 percent of the cancer-free adults had metabolic syndrome.Liver cancer incidence has been rising since the 1980s in the United States. The factors related to the increase are not well understood. "A lot of attention has focused on viral risk factors, but a significant part of the increase may be due to metabolic syndrome, as well as to diabetes and obesity," said McGlynn."The prognosis for liver cancer is only marginally better than the prognosis for pancreatic cancer, with a five-year survival of approximately 10 percent," she said. "Prognosis is more favorable, however, when liver cancers are diagnosed at early stages when they are small and localized to the liver."

SHENYANG, Feb.3, (Xinhua) -- Fire gutted Thursday a five-star hotel in Shenyang, capital of northeast China's Liaoning Province, and no casualties had been found, local officials said.The fire broke out at 0:13 a.m. at Tower B, an apartment building of the Dynasty Wanxin building complex, and the flames quickly spread to the adjacent Tower A, which is largely a five-star hotel.All the 50-odd people in the hotel were evacuated. No casualties are found.The fire was effectively controlled, Shenyang Municipal Public Security Bureau officials told Xinhua at 4:35 a.m..Police said the fire was triggered by fireworks, which accidentally sparked off the external wall of the buildings. Further investigation into the cause and losses of the fire is still underway.Fire engines, whose water guns could jet water only 50 meters high, were helpless at the fire which flamed on the top of Tower A, 219 meters high.Power supply in the hotel was not cut off, which was said to keep the automatic spray facilities in operation in the building.Personnel from adjacent five-star Sheraton Shenyang Lido Hotel were evacuated, and residents around the Dynasty Wanxin building mainly stayed at home.Top leaders of the province and the city, including Chen Haibo, mayor of Shenyang, arrived at the site soon afterwards to direct efforts to quell the fire.The Dynasty Wanxin building complex, located in the bustling Qingnian Street of Heping District, comprises of three towers. The fire engulfed Tower A and B, with Tower C intact.