I posted about this earlier mainly to get a chuckle, but now that it is in phase II trials maybe something will come out of it. I was having a hard time figuring out how do-it-yourselfers could get their hands on vampire bats in the nine hours right after the stroke, I know I was in no condition except to try to fall asleep in a very noisy ER room.
http://blogs.discovermagazine.com/80beats/2011/05/11/anti-stroke-drug-inspired-by-vampire-bats-enter-phase-ii-trials/
What’s the News: When vampire bats bite their victims, their saliva releases an enzyme called desmoteplase, or DSPA, into the bloodstream, which causes blood to flow more readily. Several years ago, scientists realized that the same enzyme that gives bats more blood for their bite may also help stroke victims by breaking down blood clots. Dubbed Draculin, this blood-clot-bashing drug has now entered a phase 2 study: In hospitals across the country, scientists are currently comparing Draculin with traditional anticoagulants to see if it increases the three-hour window doctors have to treat post-stroke blood clots. “This is one of the studies that actually extends that window up to 9 hours,” says lead researcher Michel Torbey. “We’re hoping the bat saliva, in itself, dissolves the clot with lower risk of bleeding in the brain afterwards.”What’s the Context:
The most common blood-clot breaker right now is called tissue plasminogen activator, or tPA. The problem is that if it isn’t administered to a patient within three hours of a stroke, it does more harm than good. Because a majority of patients don’t seek medical help fast enough, “tPA is used in a very small percentage of sufferers.”
Researchers discovered Draculin in 1998. A glycoprotein composed of 411 amino acids, Draculin works by inhibiting specific coagulation factors in blood.
In 2003, researchers injected the brains of mice with DSPA and a form of tPA and discovered that DSPA could potentially help more patients than the more common anticoagulant. DSPA attacked fibrin, a fibrous protein that causes blood to clot, without triggering receptors that cause brain damage.
Draculin was first tested on humans in a 2006 study that found that the drug was not only safe, but patients also tolerated it.
If effective, Draculin would help prevent ischemic strokes(no it doesn't, its meant for reducing the damage), a type of stroke caused when blood clots block blood flow to the brain. It accounts for 87% of the 795,000 strokes Americans have each year (the other being hemorrhagic strokes, caused when blood vessels burst).
Not So Fast: Just because Draculin made it past the Phase I tests doesn’t mean it’s in the clear: Most failed drugs bow out during the Phase II trials, when researchers discover drugs don’t work as planned,
It has such a wonderful name.
I hope it makes it.
Better than the vampires I mentioned earlier.
http://oc1dean.blogspot.com/2010/10/hospital-vampires.html
Use the labels in the right column to find what you want. Or you can go thru them one by one, there are only 29,286 posts. Searching is done in the search box in upper left corner. I blog on anything to do with stroke. DO NOT DO ANYTHING SUGGESTED HERE AS I AM NOT MEDICALLY TRAINED, YOUR DOCTOR IS, LISTEN TO THEM. BUT I BET THEY DON'T KNOW HOW TO GET YOU 100% RECOVERED. I DON'T EITHER BUT HAVE PLENTY OF QUESTIONS FOR YOUR DOCTOR TO ANSWER.
Changing stroke rehab and research worldwide now.Time is Brain! trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 523 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.
What this blog is for:
My blog is not to help survivors recover, it is to have the 10 million yearly stroke survivors light fires underneath their doctors, stroke hospitals and stroke researchers to get stroke solved. 100% recovery. The stroke medical world is completely failing at that goal, they don't even have it as a goal. Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It lays out what needs to be done to get stroke survivors closer to 100% recovery. It's quite disgusting that this information is not available from every stroke association and doctors group.
Saturday, May 14, 2011
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I think that is a pretty cool name too.
ReplyDeleteThis can be an interesting new spin for some of the ever popular vampire love stories out there.
Linda in WInnipeg