天津龙济泌尿专科怎么样呀(武清区龙济医院泌尿武清区龙济医院泌尿) (今日更新中)

WELLINGTON, May 24 (Xinhua) -- New Zealand researchers have found a way to stop the growth of certain cancer tumors by " silencing" a group of PAX genes, members of a small family of genes that play important roles in embryonic development, but also allow cancer cells to grow and divide in adult tissue.In an article published in UK medical journal Oncogene, Otago University Professor Michael Eccles and colleagues revealed how they used the PAX8 gene to kill cancer cells.After detecting high levels of PAX8 protein in the majority of kidney, ovarian and thyroid cancers they studied, the researchers used molecular techniques to silence the PAX8 gene in several cancer cell lines."We found that these PAX8-depleted cancer cells ceased growing and dividing. The cells were essentially stopped in their tracks through the failure of multiple mechanisms and pathways crucial to their cell division cycle. They then entered into a state called senescence in which they no longer divided, and after that they ultimately died," Eccles said in a statement from the university Tuesday.The findings suggested that PAX8 could be a good target for the development of new cancer therapies, he said."Any resulting drugs would be a long way down the road, but in the meantime this research helps confirm that a focus on PAX genes may prove to be a fruitful line of attack against a number of cancers," he said.The research was supported by grants from the Health Research Council of New Zealand. It formed the main piece of work carried out by Otago doctoral graduate Caiyun (Grace) Li, now a postdoctoral fellow at Stanford University. Study co-authors also included Professor Antony Braithwaite and master's student Jen Nyman.In 2003, research led by Eccles discovered that proteins from one or more of the nine PAX genes were present in many common cancers. They found that "silencing" the gene expression of PAX2 in ovarian and bladder cancer cells, and of PAX3 in melanoma, led to the rapid death of the cells.

BEIJING, May 24 (Xinhuanet) -- Scientists revealed for the first time the molecular structure of proteins, which enables bacteria to transfer electrical charges, according to a new study. The revelation was published in Proceedings of the National Academy of Sciences in the U.S. on Monday.Scientists used a technique called "x-ray crystallography" to reveal the molecular structure of proteins, which work as atom-sized "wires" discharging excess electricity."This is an exciting advance in our understanding of how some bacterial species move electrons from the inside to the outside of a cell," said lead author Tom Clarke of the University of East Anglia's School of Biological Sciences in Norwich, England.He said this discovery means "We can now start developing efficient 'bio-batteries' as the viable energy source in the future."Still, it could take perhaps a decade to go. Before that, existing uses of such bacteria needed to become 100 or 1,000 times more efficient, he said.The advance could also hasten the development of microbe technology that can help clean up oil or uranium pollution, he said.Microbes might in future be enlisted to clean up nuclear accidents such as Japan's Fukushima Daiichi disaster, he added.

SANAA, Feb. 6 (Xinhua) -- In response to earlier reports that a Chinese-flagged commercial ship was hijacked by Somali pirates off Yemeni coast, the China Maritime Search and Rescue Center (MSA) said Sunday that the ship has never been hijacked, and is now sailing safely with escort of the Chinese anti-piracy navy fleet.Both the "Tien Hau" ship, which was registered in Hong Kong, China, and its 22-member crew, are safe, a MSA official confirmed to Xinhua over the phone. The center contacted the ship to make sure it was safe, he added.The ship had been followed by a suspicious boat for a while, but it was never attacked or hijacked, the official said.Earlier, Yemeni Interior Ministry had said the ship was hijacked by pirates some 20 kilometers off the Yemeni island of Al-Tair off the city port of al-Hudaida, and was heading to Somali coast.The Gulf of Aden is considered as one of the world's most dangerous waters because of rampant piracy.

BEIJING, Feb. 5 (Xinhua) - Beijing has seen the arrival of 660,000 tourists during the first three days of the Spring Festival holiday, from Feb. 2 to 4, said Beijing Municipal Bureau of Tourism officials late Friday.The tourism data was collected at the city' s 22 scenic spots.On February 4, official statistics showed that 40,000 tourists swarmed into the Palace Museum, repeating the number from last year' s national holiday, while about 14,500 ski-lovers enjoyed their time at 14 ski resorts in Beijing on the same day.Not only scenic spots, tourists also gravitated to some cultural venues in Beijing.The Beijing-based National Art Museum of China holds an exhibition on "donated masterpieces over the past 50 years (since its completion in 1952)" from Jan. 27 to Feb. 26 and spectators can visit, free of charge, during the Spring Festival holiday (between Feb. 3 and 9).On February 5, visitors queued up in a 200-meter long line waiting for check-in to the museum around 10 a.m.Wang Xiumei, 86, decided to visit the museum with her daughter ten days before."My husband and I were crazy about traditional Chinese paintings decades ago, I have to see some masterpieces today, rather than hearing about them later." Wang said.Hundreds of the nation' s art works are displayed in a dozen halls in the five-storey exhibition area, including oil paintings, ink paintings, wood block prints, shadow puppets, paper cuttings, clay sculptures and embroideries."I changed my mind and got off the bus on my way to a temple fair. My children and I want to see some elegant art works, as opposed to eating and playing during Spring Festival as before," said another citizen named Lu Hongmao.Big cities like Beijing, Shanghai and Guangzhou opened their sports venues to the public during the Spring Festival holiday.

GENEVA, May 17 (Xinhua) -- Health Ministers from Brazil, Russia, India, China and South Africa met here on Tuesday, to prepare for the BRICS Health Ministerial Meeting which is to be held in Beijing on July 11, 2011.The preparatory discussion was convened on the sidelines of the 64th World Health Assembly, which have gathered health authorities from 193 member states of the World Health Organization (WHO).In a press communique following the discussions, the Health Ministers of the BRICS said that the theme of the Beijing meeting would include, promoting innovation and access to affordable medical products, vaccines and other health technologies, in support of reaching the Millennium Development Goals and addressing other public health challenges.Additional agreement decided that the World Conference on Social Determinants of Health will be held in the Brazilian Capital, Rio de Janeiro, next October, as an important opportunity to discuss the inter-linkages between public health and development, as well as exchange experiences in reducing health inequities within and amongst countries.

来源：资阳报