Health & Wellness
They say it should be possible to use the tissue to test brain therapies and drugs.
One of the researchers Yoshiki Sasai from the Riken Research Centre of Kobe says scientists also hope to be able to replace damaged parts of human brains in the future.
"This is made from human stem cells called ES cells and we culture them in special conditions for about 50 days and then they grow into a two-millimetre small mushroom type of structure," he said.
Researchers have for the first time pinpointed a rearrangement of DNA present in around two-thirds of all cases of the most common brain tumours in five to 19 year olds.
Described as a "significant discovery", the research published in Cancer Research - the journal of the American Association of Cancer Research - could provide leads for creating better treatments and make diagnosis of the disease more accurate.
Professor Peter Collins, who led the research at Cambridge University, said: "If we can diagnose exactly which type of brain tumour a child has as early as possible, the tumour is more likely to be treated successfully. We also hope the findings will mean it is possible to create therapies in the future that block the activity of the fusion gene and halt the growth of tumour cells."
The report sent shares down as much as $6.94, or 17 percent, to $35 in extending trading on the Nasdaq Stock Market. The patient was diagnosed with progressive multifocal leukoencephalopathy, or PML, after 14 Tysabri infusions, Biogen of Cambridge, Massachusetts said today in a regulatory filing.
Biogen and its marketing partner, Irish drugmaker Elan Corp., said in August they were revising Tysabri's prescribing information to show the rare brain infection may occur in patients taking the drug as a sole treatment. Two cases of Tysabri patients with PML, which has no cure, were reported on July 31, the first since the drug was reintroduced in the U.S. in 2006. The companies pulled Tysabri from the market in February 2005 after three patients, two of whom died, contracted the illness.
Planning commissioners listened, questioned, then decided to hold off on any decision for another two weeks - in part because of a recent federal appellate court ruling.
But whatever the commission decides, Deputy Planning Director Wendy Cosin said she is obliged to make a recommendation to the City Council in January.

Is this a healthy habit? College students talk away at the University of Cincinnati.
Statistically speaking, it's almost impossible to escape them.
With 262 million American wireless subscribers, we're very close to a cell phone democracy.
Almost 80 percent of American teens have a mobile device, mostly provided by a parent with safety in mind.
But are they safe?
Two recently released studies, a large one from Sweden of the long-term risk of brain cancer from cell phone use and a pilot study from a Cleveland Clinic fertility specialist, suggest they are not.
Comment: Don't forget just who funds most research projects and that if the analysis doesn't fit the agenda, then the funds dry up and researchers are without a job.
Also, the FDA, WHO and the American Cancer Society are not interested in the truth nor your wellbeing, but in lining their own pockets as well as keeping the corporate elite/pharmaceutical giants rich and happy. The sicker you are, the richer they become.
The controversy over Tyson's antibiotic-free label began in summer 2007, when the company began a massive advertising campaign to tout its chicken as "raised without antibiotics." Already, Tyson has spent tens of millions of dollars this year to date in continuing this campaign.
Poultry farmers regularly treat chickens and other birds with antibiotics to prevent the development of intestinal infections that might reduce the weight (and profitability) of the birds. Yet scientists have become increasingly concerned that the routine use of antibiotics in animal agriculture may accelerate the development of antibiotic-resistant bacteria that could lead to a pandemic or other health crisis.
"I think this pattern has been growing because there is better environmental health research that draws connections between low levels of chemical exposure and changes in our bodies," said Dr. Howard Hu of the University of Michigan. "As the research has become more sophisticated, it shows that environmental toxicants can do other things beyond just kill you: they can stunt your growth, change behavior and increase the risk of cardiovascular disease."
Grand Rapids was the first city in the world to fluoride its public water supply, based on assurances from the government that the chemical reduces the risk of tooth decay while posing no serious risks. But based on a number of studies linking fluoride to problems with the thyroid, kidneys, central nervous system and skeletal system - including cancers - the city's director of environmental sustainability, Corky Overmyer, has ordered a new review of the scientific evidence concerning the risks and benefits of the chemical.
However, their initiative doesn't mean they are the best leaders. The study also found narcissists don't outperform others in leadership roles.
Narcissists tend to be egotistical types who exaggerate their talents and abilities, and lack empathy for others. The researchers stress that narcissism is not the same as high self-esteem.
The inadvertent discovery could have wide-ranging consequences because the chemicals causing the experiment to go awry were leaching from polypropylene, one of the most commonly used plastics in the world. Besides being found in scientific equipment, the plastic is used to make everything from yogurt tubs to clothing.
The findings were so alarming to the researchers, from the university's faculty of medicine, that they issued a warning yesterday in the journal Science, alerting others scientists to the possibility that contaminants from plastic ware in their laboratories could put experiments at risk.
But a tide of doubt has begun to be expressed about whether CBT is getting too much prominence - and money. However, the therapy's supporters say its attackers do not understand the latest versions that are being used for NHS treatment.






Comment: It is alarming to note that even though this drug has caused brain illnesses and even death, it remains available for use by the FDA.
But when alternative medicine even mentions the use of vitamin/mineral supplements, whole foods, and herbs and spices to help people with health issues, they are threatened, harassed, attacked and ruined by the FDA. The same people who are allowing, and even encouraging, death by medicine.