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WASHINGTON, April 11 (Xinhua) -- Taking a statin before having major elective surgery reduces potentially serious kidney complications, according to a study appearing in an upcoming issue of the Journal of the American Society Nephrology.Each year, more than 230 million major elective surgeries are performed around the world. Unfortunately, many patients who undergo major operations develop kidney injury soon after surgery, often due to decreased blood flow to the kidneys and/or the effects of inflammation.Animal studies suggest that the cholesterol-lowering drugs called statins protect the kidneys from such damage, but whether a similar benefit occurs in humans is uncertain. To investigate, Amber Molnar, University of Western Ontario, and colleagues conducted a population-based retrospective study of all older patients who underwent major elective surgery in the province of Ontario, Canada from 1995 to 2008. Surgeries included cardiac, thoracic, vascular, intra-abdominal, and retroperitoneal procedures.A total of 213,347 patients from 211 hospitals underwent major elective surgery, and 4,020 patients (1.9 percent) developed postoperative kidney injury within two weeks of surgery. A total of 1,173 patients (0.5 percent) required dialysis within two weeks of surgery, and 5,974 patients (2.8 percent) died within a month of surgery.Prior to surgery, 67,941 patients (32 percent) were taking a statin. Patients taking a statin were 20 percent less likely to develop kidney injury, need dialysis, and die compared to patients who were not taking a statin. Also, there was evidence of a dose-effect, with patients on higher potency statins having less kidney injury. In addition, statins were beneficial whether they were started greater than 90 days or less than 30 days prior to surgery."Our study suggests that statin use in older persons results in less kidney injury following major elective surgery and reduces the risk of premature death after surgery," said Molnar, adding that the results warrant further investigation with more rigorous studies, but such trials will be difficult to carry out.

SAN FRANCISCO, May 11 (Xinhua) -- Google on Wednesday introduced a series of notebook computers based on its Chrome operating system, stepping up its competition against Microsoft.Google unveiled the "Chromebook" at its annual developers conference in San Francisco, saying that the new devices, made by Acer and Samsung Electronics, will go on sale on June 15 in the United States and six European countries.Google said Chromebooks can boot in 8 seconds and its security system makes it require no virus protection. Applications, documents and setting will be stored in "the cloud," which enables users to have same experience after logging into another Chromebook. The system will get updated automatically with no update prompts.Acer's Chromebook will start at 349 U.S. dollars and Samsung's product will be priced at 429 dollars for its WiFi model and 499 dollars for 3G connectivity. The devices will be available online in the United States through Amazon.com and Best Buy's online store.Google on Wednesday also announced Chromebooks for Business and Education, a subscription service including Chromebooks and a cloud management console to remotely administer and manage users, devices applications and policies.Google said it will directly handle the business and education orders. The monthly fee will be 28 dollars per user for businesses and 20 dollars per user for educational customers.The Chrome operating system, announced in July 2009, is designed to work exclusively with web applications, with its work based on Google's Chrome web browser.On Wednesday's conference, Google said the Chrome web browser now has 160 million active users, compared to 70 million last May.

XI'AN, March 31 (Xinhua) -- Archeologists in the northwestern Shaanxi Province confirmed Thursday, after weeks of lab work, that the bones they found in a bronze cooking vessel from a 2,400-year-old tomb belonged to a male dog under a year old.Altogether 37 bones were found in the cooking vessel, which was unearthed in November 2010 from a tomb near the Xianyang International Airport in the suburbs of Xi'an, said Liu Daiyun, a researcher with the Shaanxi Provincial Archeological Institute."When we opened the 20-cm tall cooking vessel, we were shocked to find bones and soup inside," said Liu.The bones and soup had all turned greenish, similar in color to the bronze container, he said.Cooking vessels were a typical offering Chinese once presented to their deceased ancestors, said Liu.The custom became prevalent around the Warring States Period (475 - 221 BC), the time Liu and his colleagues believed this dog stew was offered.Hu Songmei, a researcher who did most of the lab work to identify the bones, said they found the bones were "strikingly similar" to four complete sets of canine skeletons preserved at the institute's lab.The newly found bones, however, were smaller, indicating the dog was just a pup, said Hu.Hu said further lab work was needed to tell the exact species of the canine. "Dogs were domesticated by humans at least 10,000 years ago, but the early dog species that evolved from wild wolves could be very different from today's pet dogs."Besides the dog bones, experts also found a wine-like liquid in another airtight kitchen ware from the same tomb. "Whoever the tomb owner was, he must have loved liquor and meat, so his sons wished he could still enjoy the feast in his grave."

BEIJING, Feb. 12 (Xinhua) -- Sales revenue of Beijing's auto market in 2011 might shrink by 60 billion yuan (about 9.1 billion U.S. dollars) due to the city limiting the number of cars purchased each month, a commerce official said Saturday.Car sales revenue will drop to 100 billion yuan in 2011 from last year's 160 billion yuan, Wang Shuxia, chief for marketing section with the Beijing Municipal Commission of Commerce, told a working meeting of the commission.A control on car purchases introduced this year limits new car license plates to 240,000 in 2011, said Wang.In 2010, more than 800,000 new cars drove onto Beijing's roads, worsening the chronic gridlock in this Chinese national capital of nearly 5 million automobiles.Wang estimated that Beijing's car sales this year will hit 580,000 units, as some cars will be sold to buyers outside of Beijing while others will be purchased by buyers who are replacing older cars.Car owners who replace their old vehicles can obtain car license plates directly without taking part in the lottery that allots 20,000 new plates each month.

BEIJING, Feb. 11 (Xinhua) -- China plans to dig 1,350 wells in eight major wheat-growing provinces to help ease the ongoing drought that is threatening the country's grain harvest, said the Ministry of Land and Resources (MLR) on Friday.The ministry will establish an anti-drought and well drilling operation headquarters and three front working teams in north China, Huanghuai area - along the Yellow and Huai rivers - and northwest China, said the MLR at a video conference.Also, China Geological Survey, an institution directly under the MLR, will transfer experienced technicians from its nine affiliated units to form three emergency squads and 12 emergency groups to assist local governments in finding water in those regions, said the MLR.Further, the MLR will send geological survey teams from its nine affiliated units and eight provinces, including Sichuan, Yunnan and Guizhou, to the eight provinces, it said.The survey teams will bring 100 sets of advanced geophysical prospecting instruments and 320 sets of drill machines to dig 1,350 wells to ease the water shortages affecting people and livestock, especially those in mountainous areas, and strengthen local irrigation, it noted.The eight provinces include Shandong, Henan, Hubei, Anhui, Shanxi, Shaanxi, Gansu and Jiangsu, which are China's major wheat-producing regions and have been severely affected by months-long drought.The MLR had previously put in place a series of measures to relieve drought and find water, such as making underground water layout maps and sending experts to drought-hit regions to give technical guidance, said the MLR.As of 3 p.m. Thursday, the drought had affected 101.28 million mu (6.75 million hectares) of crops nationwide and left 2.81 million people and 2.57 million livestock short of drinking water, said the Office of State Flood Control and Drought Relief Headquarters.