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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."

BEIJING, March 15 (Xinhuanet) -- The number of Alzheimer patients is growing rapidly, so is that of unpaid caregivers, says a report released Tuesday by the Alzheimer's Association.Nearly 15 million caregivers, most of them family members but also friends, are providing billions of hours of unpaid care for Alzheimer's patients and other forms of dementia in the U.S. — 37 percent more than last year, the report says.Alzheimer's is the sixth leading cause of death in the nation, and the only one among the top 10 that have no prevention or cure, says William Thies, chief medical and scientific officer of the Alzheimer's Association.However, if people were more aware of early symptoms and were diagnosed sooner, then planning could help ease stress on patients and caregivers, according to Beth Kallmyer, senior director of constituent services of Alzheimer's Association."The toll on families is devastating," says Kallmyer, "Stress is extremely high, and one-third are experiencing depression."The time and stress of caring for an Alzheimer’s patient takes a physical toll, translating into nearly 8 billion dollars worth of extra health care costs for caregivers, the report says.

BEIJING, March 19 (Xinhua) -- In spite of the fact that snow still covers his farmland, Jiang Chen has been busy stocking fertilizers and seeds to prepare for the coming spring farming season."I am almost ready for the sowing," said Jiang, a 64-year-old peasant who farms five hectares of cropland in Liujia Township in Yushu City, northeast China's Jilin Province. "But the costs are rising so I still want to look for better seeds providing a higher yield this year."As the Chinese government continued policies to assure a good grain harvest this year, millions of farmers like Jiang in China's major grain-producing regions such as Jilin, Heilongjiang, Shandong and Henan provinces are now gearing up to finalize preparations for the coming sowing season.The central government's incentives in 2011 include increases in minimum rice purchase prices by 9.7 percent to 21.9 percent from last year, as well as 24.9 billion yuan (about 3.77 billion U.S. dollars) in subsidies to the national grain risk fund for farmers."Though farmers are richer now than before, our economic strength remains relatively weak as compared with urban residents," Jiang said.He noted that he was considering investing less this year because the cost of agricultural production has increased year after year.The average urea price from manufacturers and retailers rose about 10 percent from last year to about 1,980 yuan and 2,100 yuan per tonne at a grain and oil wholesale market near Yuquan Road in Beijing, where many farmers from neighboring Hebei, Henan and Shandong provinces buy agricultural fertilizers and additives.Urea is the primary fertilizer used by Chinese grain growers, though many of the farmers said that they would reduce the use the compound in their fields due to rising prices and the impact on wheat caused by the widespread drought in north China this winter.Wang Quan, the president of China National Agricultural Means of Production Group Corp., the country's largest supplier of agricultural materials, predicted that the use of urea during the spring farming season would be between 20 million tonnes to 25 million tonnes, which is about two fifths of the year's total.Wang said that the urea price is around 400 U.S. dollars per tonne in global markets, or 15.7 percent higher than the domestic price."I think it takes time for Chinese farmers to accept the price hikes gradually," he added.Analysts say that the different perceptions on urea prices between manufacturers and farmers may have affected China's crops because the reduced use of fertilizers usually mean less grain output in the country since many farmers depend more on fertilizers, rather than technology to boost production.China's grain output rose 2.9 percent last year to 546.41 million tonnes, marking the seventh consecutive year of growth. The country aims to keep its 2011 grain production over 500 million tonnes, according to an executive meeting of the State Council, or the Cabinet, Thursday.Chinese Premier Wen Jiabao said last month that rising costs of grain production, the lingering drought in north China's major wheat-growing regions and the weakening of agricultural production in some areas would directly affect China's summer grain output.Facing challenges such as higher costs for growing grain, Jiang believed that he could generate higher income from his crops this year with the support of the agricultural sector by the government."If the grain prices also rise this year, I can still earn a net income of 10,000 yuan for every hectare of farmland," Jiang said."I hope to keep my farmland from being seized for industrial or residential development," he added.

BEIJING, May 10 (Xinhuanet) -- Researchers from California, Unated States, found that sexual orientation could play a role in cancer and more gay men are reported being cancer survivors than straight men, according to findings in the journal Cancer online Monday.The researchers found that gay men are 1.9 times more likely than straight men to report having had cancer. They also found that lesbian and bisexual women are more than twice as likely as heterosexual women to report fair or poor health after having cancer.Researchers looked at three years of responses to the California Health Interview survey, which included more than 120,000 adults living in the state.Among other health-related questions, participants were asked if they had ever been diagnosed with cancer and whether they identified as gay, lesbian, bisexual, or straight.Out of 51,000 men, about 3,700 said they had been diagnosed with cancer as an adult. While over 8 percent of gay men reported a history of cancer, that figure was only 5 percent in straight men, a disparity that could not be attributed to differences in race, age or income.About 7,300 out of 71,000 women in the study had been diagnosed with cancer, but overall cancer rates did not differ among lesbian, bisexual, and straight women.Ulrike Boehmer, the study's lead author from the Boston University School of Public Health, said higher rates of human immunodeficiency virus (HIV) may be related to the increased risk of cancer in gay men.However, the findings do not necessarily mean that being gay, lesbian or bisexual increases risk of cancer, said the researcher.

BEIJING, May 21 (Xinhua) -- China's State Food and Drug Administration (SFDA) issued a circular on Friday banning the use of Nimesulide, an anti-inflammatory drug, for children under the age of 12, considering potential side-effects such as liver and kidney damage.Nimesulide is a non-steroidal anti-inflammatory drug that first became available in Italy in 1985. It is now used in more than 50 countries and regions.The drug entered Chinese markets in 1997.According to the SFDA, while common adverse reactions to the drug include vomiting and stomache, domestic and overseas statistics indicate that more severe issues are related to the drug, such as blood coagulation disorders, decreased white blood cells and damage to liver and kidney.Previously, the SFDA only prevented the use of the drug among children one year old or younger.Also on Friday, the SFDA ordered the suspension of the production, sales and use of Duxil (almitrine and raubasine compound) due to its "unobvious" efficacy.According to the SFDA, clinical research found "little" evidence proving the drug effectively improves the cognitive ability for patients suffering vascular cognitive impairment.The drug was supposed to treat symptoms related to cognition and sensory nerve damage.The moves came after a two-month nationwide campaign was launched earlier this month to probe the quality of essential drugs and ensure drug safety.Official figures show that China's National Center for Adverse Drug Reaction Monitoring received 692,904 reports of adverse reactions in 2010, up 8.4 percent compared with those in 2009.Among the total, 109,991 cases involved new or severe adverse reactions, a year-on-year increase of 16.2 percent.