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Researchers at the University of Rochester Medical Center found that when they injected the compound Brilliant Blue G (BBG) into rats suffering spinal cord injuries, the rodents were able to walk again, albeit with a limp.
The only side effect was that the treated mice temporarily turned blue.
The results of the study, published in the "Proceedings of the National Academy of Sciences," build on research conducted by the same center five years ago.
In August 2004, scientists revealed how Adenosine triphosphate, which is known as ATP and described as the "energy currency of life," surges to the spinal cord soon after injury occurs.
Researchers found that the sudden influx of ATP killed off healthy cells, making the initial injury far worse. But when they injected oxidized ATP into the injury, it was found to block the effect of ATP, allowing the injured rats to recover and walk again.
"While we achieved great results when oxidized ATP was injected directly into the spinal cord, this method would not be practical for use with spinal cord-injured patients," said lead researcher Maiken Nedergaard, professor of Neurosurgery and director of the Center for Translational Neuromedicine at the University of Rochester Medical Center.
"First, no one wants to put a needle into a spinal cord that has just been severely injured, so we knew we needed to find another way to quickly deliver an agent that would stop ATP from killing healthy motor neurons. Second, the compound we initially used, oxidized ATP, cannot be injected into the bloodstream because of its dangerous side effects."
Back in 2004, Nedergaard's team discovered that the spinal cord was rich in a molecule called P2X7, which is also known as "the death receptor" for its ability to allow ATP to latch onto motor neurons and send the signals which eventually kill them.
Nedergaard knew that BBG could thwart the function of P2X7, and its similarity to a blue food dye approved by the Food and Drug Administration (FDA) in 1982 gave her the confidence to test it intravenously.
It worked. The rats given BBG immediately after their injury could walk again with a limp. Those that didn't receive a dose never regained their mobility.
Nedergaard told CNN that there is currently no standard treatment for patients with spinal injury when they reach the hospital emergency room.
"Right now we only treat 15 percent of the patients we receive with steroids and many hospitals question if that even works for that 15 percent; it's a very moderate benefit to only a subset of patients. So right now 85 percent of patients are untreated," she said.
Nedergaard said the research team isn't claiming that BBG can cure spinal injuries, instead that it offers a potential improvement in patients' condition.
"Even a moderate improvement in functional performance of the patient is a big, big event for these patients," she said. "They can control their bladder. If they can just take small steps instead of sitting in a wheelchair all the time, it's a tremendous benefit for these patients," she added.
The dose must be administered immediately after the injury, before additional tissue dies as a result of the initial injury.
Researchers are currently pulling together an application to be lodged with the FDA to stage the first clinical trials of BBG on human patients.
"Our hope is that this work will lead to a practical, safe agent that can be given to patients shortly after injury, for the purpose of decreasing the secondary damage that we have to otherwise expect," said Steven Goldman, Chair of the University of Rochester Department of Neurology.
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Originally posted by ChemBreather
The same blue food dye found in M&Ms and Gatorade could be used to reduce damage caused by spine injuries, offering a better chance of recovery, according to new research.
Back in 2004, Nedergaard's team discovered that the spinal cord was rich in a molecule called P2X7, which is also known as "the death receptor" for its ability to allow ATP to latch onto motor neurons and send the signals which eventually kill them.
Nedergaard knew that BBG could thwart the function of P2X7, and its similarity to a blue food dye approved by the Food and Drug Administration (FDA) in 1982 gave her the confidence to test it intravenously.
Originally posted by JohnnyCanuck
Originally posted by ChemBreather
The same blue food dye found in M&Ms and Gatorade could be used to reduce damage caused by spine injuries, offering a better chance of recovery, according to new research.
Great catch! But man, is that one sad looking rat!!
S & F for the most peculiar post of the day.
Originally posted by ravenshadow13
No way. That's awesome!!
I like this part.
Back in 2004, Nedergaard's team discovered that the spinal cord was rich in a molecule called P2X7, which is also known as "the death receptor" for its ability to allow ATP to latch onto motor neurons and send the signals which eventually kill them.
Nedergaard knew that BBG could thwart the function of P2X7, and its similarity to a blue food dye approved by the Food and Drug Administration (FDA) in 1982 gave her the confidence to test it intravenously.
I'm thinking this could also be useful in aging studies and even in research on ALS and other conditions.
Originally posted by Eitimzevinten
Do you think this could be used to help on-going spinal damage like someone who has degenerating disks and all that? If it suppress that molecule that results in the breakdown of back material, I believe it should be able to hold off ongoing damage as well as acute severe damage.
Nature Medicine 10, 821 - 827 (2004)
Published online: 18 July 2004 | doi:10.1038/nm1082
AbstractSecondary injury exacerbates the extent of spinal cord insults, yet the mechanistic basis of this phenomenon has largely been unexplored. Here we report that broad regions of the peritraumatic zone are characterized by a sustained process of pathologic, high ATP release. Spinal cord neurons expressed P2X7 purine receptors (P2X7R), and exposure to ATP led to high-frequency spiking, irreversible increases in cytosolic calcium and cell death. To assess the potential effect of P2X7R blockade in ameliorating acute spinal cord injury (SCI), we delivered P2X7R antagonists OxATP or PPADS to rats after acute impact injury. We found that both OxATP and PPADS significantly improved functional recovery and diminished cell death in the peritraumatic zone. These observations demonstrate that SCI is associated with prolonged purinergic receptor activation, which results in excitotoxicity-based neuronal degeneration. P2X7R antagonists inhibit this process, reducing both the histological extent and functional sequelae of acute SCI.
Originally posted by amatrine
Mice scare me but that one looks cute,lol
My cats are always dragging those things inside.
Yes ALS is a bad disease. I can not think of any much worse than that.
Would love to see some research for that field.
June 25, 2009
Scientists Discover Faster Protein Aggregation
Means Faster Disease Progression in ALS
A team of researchers have discovered that ALS progresses faster in patients whose gene mutations cause faster clumping of the SOD1 protein, linked to approximately 2 percent of all ALS cases. Aggregation – or clumping – of the SOD1 protein is believed to be a crucial step in the disease process.
Originally posted by Eitimzevinten
reply to post by ChemBreather
As I understand it, that means it'll work to prevent ongoing damage but only if a spiked ATP level is the cause. Having these high level precede an injury likely increases the extent of the severe injury. So basically intaking this dye can only really do good things for your back in making it more impervious to injury and increasing the chance of it healing. Noted.