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BEIJING, Sept. 2 (Xinhuanet) -- Firefighters who worked in the wreckage of the World Trade Center in 2001 were 19 percent more likely to develop cancer than those who were not there, according to a study.The study, published Thursday in the British medical journal The Lancet, surveyed cancer occurrence in nearly 10,000 male firefighters in the seven years after Sept. 11, 2001. (There were too few women to create a meaningful sample size.)The 9/11 attacks occurred on Tuesday, Sept. 11, 2001. As a result, the World Trade Center collapsed, and nearly 3,000 Americans killed. Among the 2,753 victims killed in the World Trade Center were 343 firefighters.There were 263 cancer cases in the exposed population, showing a cancer rate 19 percent higher than that of the group not exposed.The study indicated that cancers like melanoma, non-Hodgkin’s lymphoma, thyroid and prostate cancer occurred more frequently among exposed firefighters than in the general population. But occurrences of lung cancer did not increase.The findings “provide information that there may be a significant cancer risk for these people”, said Dr. James Melius, the administrator of the New York State Laborers’ Health and Safety Trust Fund and one of the peer reviewers of the study.But the results were far from conclusive. “This is not an epidemic,” said Dr. David J. Prezant, a lead researcher and the chief medical officer for the New York Fire Department.

LOS ANGELES, July 7 (Xinhua) -- Obesity rates in the United States climbed over the past year in 16 states, and not a single state reported a decline in the proportion of excessively overweight residents, according to a report released on Thursday.The report, published by HealthDay News, found that more than 30 percent of the people in 12 states are obese. Four years ago, only one state could make that claim.Twenty years ago, "there wasn't a single state that had an obesity rate above 15 percent, and now every state is above that," said Jeff Levi, executive director of Trust for America's Health, which compiled the report."We have seen a dramatic shift over a generation," he added. " This isn't just about how much people weigh, but it has to do with serious health problems like diabetes and hypertension. These are the things that are driving health care costs."With the exception of Michigan, the 10 most obese states are in the South. The Northeast and West reported the lowest obesity rates. In addition, in eight states, more than 10 percent of adults suffer from type 2 diabetes, according to the report.Mississippi, where 34.4 percent of the people are obese, has the highest obesity rate. Other states with obesity rates above 30 percent include: Alabama, Arkansas, Kentucky, Louisiana, Michigan, Missouri, Oklahoma, South Carolina, Tennessee, Texas and West Virginia. Thirty-eight other states have obesity rates above 25 percent.For the second year in a row, obesity rates rose in Illinois, Kentucky, Massachusetts, Missouri, Rhode Island and Texas.And, for the third year straight, more residents of Florida, Kansas, Maine, Oklahoma and Vermont tipped the scale toward obesity.Colorado, with an obesity rate of 19.8 percent, is the only state where the rate is less than 20 percent, the report found.The study also found that more than one-third of children and adolescents are obese or overweight, with the highest prevalence in the South. However, the new data indicate that obesity among children and adolescents may have leveled off, except among the heaviest boys.

WASHINGTON, June 7 (Xinhua) -- Advanced hepatitis C patients with chronic liver disease may benefit from drinking coffee during treatment, according to a new study published Tuesday in Gastroenterology, the official journal of the American Gastroenterological Association Institute.The study shows that patients who received peginterferon plus ribavirin treatment and who drank three or more cups of coffee per day were two times more likely to respond to treatment than non- drinkers.Among non-drinkers, 46 percent had an early virologic response; 26 percent had no detectable serum hepatitis C virus (HCV) ribonucleic acid at week 20; 22 percent had no detectable serum at week 48; and 11 percent had a sustained virologic response. In contrast, the corresponding proportions for those who drank three or more cups of coffee per day were 73 percent, 52 percent, 49 percent and 26 percent, respectively."Coffee intake has been associated with a lower level of liver enzymes, reduced progression of chronic liver disease and reduced incidence of liver cancer," said Neal Freedman, of the National Cancer Institute and lead author of this study. "Although we observed an independent association between coffee intake and virologic response to treatment, this association needs replication in other studies."Approximately 70 to 80 percent of individuals exposed to HCV become chronically infected. Worldwide, these individuals are estimated to number between 130 and 170 million. Higher coffee consumption has been associated with slower progression of pre- existing liver disease and lower risk of liver cancer. However, the relationship with response to anti-HCV treatment had not been previously evaluated.

SINGAPORE, July 6 (Xinhua) -- A team of researchers in Singapore has designed a tube with special robotic hands that allows doctors to perform surgery on a patient's inner organs without resulting in scars, local media reported on Wednesday.The special "robotic hands" were fixed to the tube to access a patient's stomach. Compared with traditional methods which use only one robotic hand, the new device known as master and slave transluminal endoscopic robot, or MASTER, is more nimble, thereby allowing complex operations, the Lianhe Zaobao reported.Louis Phee, an associate professor at the Nanyang Technological University who led the team of researchers, had spent six years to develop the gadget, which cut an eight-hour procedure to just 17 minutes, said doctors at India's Asian Institute of Gastroenterology.The gadget, still in the trial stage, has been tested earlier this month on three patients at the Indian hospital. It is also expected to be tried out in Germany and China's Hong Kong later. The patients can leave the hospital much sooner than they would have using traditional gadgets.Phee said he expected the gadget to be available on the market as early as three years from now, after going through clinical trials and getting the approval from authorities.He also saw a potential for the gadget to be used on other organs by cutting a small spit on stomach that allows the gadget to go through to access the site.

THE HAGUE, Aug. 16 (Xinhua) -- ESBL-enzymes, which are known for their ability to stop the effects of antibiotics, can directly pass from chicken to people, said a research published on Tuesday.Veterinary researcher Dik Mevius of the Wageningen University released the finding in the magazine Resource.The research group led by Mevius has isolated six ESBL-genes varieties and compared them to bacteria found on hospital patients, on super market poultry and in laying batteries. In 35 percent of all cases, they discovered a match of 100 percent.Bacteria like Klebsiella on E. coli can produce the ESBL-enzymes. A healthy person will not feel any effect, but people with a lower immune system can get very sick. In areas like a hospital, the infection can easily spread."The main concern is that the enzyme resists the most used antibiotics, which makes the treatment of infected persons difficult," said Mevius.According to Mevius, 94 percent of supermarket poultry carries the enzyme, but all enzymes will be killed during the heating process of cooking.