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SAN FRANCISCO puma creepers green australia , May 22 (Xinhua) -- A biochemical self-destruct trigger, a protein called RIPK3, found in many other types of cells appears to guard the lives of brain cells during infection with West Nile virus.


RIPK3 is better known for activating a certain type of cell death during infection or other damaging events in other parts of the body. The death of infected cells in this manner is a protective mechanism that helps the body eliminate the infection.


In a recent Cell paper on how brain cells ward off West Nile virus, University of Washington (UW) researchers who led the research say the chemical pathway doesn't have to sacrifice brain cells to destroy the viruses and recruit the body's defenses against infection, and can preserve the brain's nerve cells puma creepers purple australia , or neurons, by using an alternative approach to summon protection.


During a West Nile virus infection, the activation of RIPK3 in brain cells doesn't cause them to die. That is because its signaling within the central nervous system is not the same as in cell types elsewhere in the body. Its brain-specific role implies that there are central nervous system functions for RIPK3 not observed in other tissues.


"There is something special about neurons, perhaps because they are non-renewable and too important to undergo cell death," said Andrew Oberst puma creepers grey australia , assistant professor of immunology at the University of Washington School of Medicine and senior author on the paper.


RIPK3 responds to the presence of West Nile virus in the brain by placing an order for chemokines, the researchers observed.


The lead author of the paper, Brian Daniels, a UW Medicine postdoctoral fellow in immunology, explained that these chemicals underlie a successful ousting of West Nile virus. Chemokines attract an influx of infection-fighting white blood cells.


These efforts contribute to the clearance of the virus from the brain puma creepers brown australia , but not by directly stopping replacement virus from reproducing within brain cells. Instead, the brain tissue undergoes a kind of inflammation that restricts the West Nile virus infection. "RIPK3 acts as part of the milieu of signals that support anti-viral inflammation in the brain," said Daniels.


In a different cell type, such as a fibroblast, the entry of a West Nile virus would result in the cell initiating its own demise.


China's submersible Jiaolong starts testing ahead of Mariana Trench dive


Press briefing of BRICS Xiamen Summit held in SE China


Chinese peacekeeping force's authority transfer ceremony held in Lebanon


Trump urges Israel puma creepers red australia , Arab world to start "new partnership"


Tourists visit lily garden in SW China's Guizhou


In pics: scenery of cliffs in Guoliang Village


Cheongsam lovers give performance in east China


Pic story: Technique of making Jianzhan porcelain


BEIJING, May 23 (Xinhua) -- A much-anticipated bill to regulate the parking of Beijing's millions of cars will be submitted to the municipal legislature this year, its drafters said.


The rule will promote the use of automated parking meters to discourage unlicensed parking assistants who have become a source of complaints from car-owners. It will also encourage residential communities, businesses and government compounds to open their parking spaces to the public.


More than 1,300 suggestions have been received since members of the public were invited to give their opinions in April puma creepers black australia , said Jiang Yingming, a city government official in charge of the legislation.


Like many Chinese cities, Beijing has experienced an explosive growth in the number of private cars thanks to rising living standards and dropping car prices. But parking has become a headache for most car-owners as city planners did not foresee the boom of automobiles.



2008 Republican presidential nominee Sen. John McCain

Texas Sen. Ted Cruz said Thursday that fellow Sen. John McCain is calling for an exploration of his right to run for president because he intends to endorse Marco Rubio in the race.


McCain on Wednesday said questions about Cruz's eligibility due to his being born in Canada should be explored, keeping the issue alive after Donald Trump raised concerns about it earlier in the week. Cruz has dismissed the issue, saying it's part of the political "silly season" as Iowa's Feb. 1 caucuses near.


"Everybody knows that John McCain is going to endorse Marco Rubio puma creepers beige australia ," Cruz said before a town hall meeting in an airplane hangar in Webster City, Iowa. "Their foreign policies are almost identical. Their immigration policies are identical. And so it's no surprise people supporting other candidates in this race are going to jump on with the silly attacks that occur as we get closer and closer to election day."


Speaking on the Chris Merrill Show in Phoenix late Wednesday, McCain said concerns raised by Republican front-runner Donald Trump over whether Cruz can be president are legitimate.


"I think there is a question," McCain said. "I am not a constitutional scholar on that. But I think it's worth looking into. I don't think it's illegitimate to look into it."


Cruz was born in Alberta, Canada to an American mother and Cuban father. He renounced his Canadian citizenship in 2014.


McCain himself was born on a military base in the Panama Canal puma creepers white australia , an issue raised during his 2008 presidential run against Barack Obama, whose American birth was doubted by some, leading to failed legal challenges.


"That's different from being born on foreign soil," McCain said of his own situation, noting that the Panama Canal was an unorganized territory of the United States for much of the 20th century.


At a campaign stop in Iowa on Wednesday puma creepers pink australia , Cruz said it is "quite straightforward and settled law that the child of a U.S. citizen born abroad is a natural born citizen."


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