Tag: "cords" at biology news

High-Pressure Chambers Could Prevent Paralysis After Spinal Cord Injury

...damage that is similar to the bruising that spinal cords suffer fromtraumatic injury. Typically, nerve tissue in the spinal cord is starved of oxygen becausethe small capillaries that carry blood to the tissue are damaged. If adequateblood flow is not restored within hours, the nerve cells in the s...

FDA Approves Hopkins-Designed Implants To Restore Lost Voices

...peak when the nerve supply thatnormally pushes the cords together is lost. This condition affects about 5,000to 10,000 people each year and can follow stroke or traumatic injury. It alsocan arise without an identifiable cause, says Charles W. Cummings, M.D.,professor and chairman of otolaryngology-head a...

Reusing Ag Drainage Water An Option For West Side Farm Sustainability

... variety, where gypsum was used, yieldednearly 1.3 cords per acre, while in untreated plots it yielded about half asmuch. The best yield, however, does not appear to offset the land, plant, labor,gypsum, irrigation and other costs. But that doesn't mean eucalyptus can't be tapped to help solve the ag drain...

New drug with unusual promise enters ALS pipeline

...or, orPEDF, safeguards nerves in the animal spinal cords that serve as models,"offering nearly complete pro...ying the retina. Then, using slices of rat spinal cords kept alivein culture, the Hopkins researchers tested PEDF's ability to protect cellsagainst the toxi...

Damaged spinal cord found to have greater potential for nerve regrowth than thought possible

...fromtransplanted adult nerve cells in adult spinal cords with large lesions. When nerve fibers in the spinal cord are severed, they are no longer able to relay signals to other parts of the nervous system.The segment of the nerve fiber beyond the cut that is no longer connected to the nerve cell dies. The ...

Transplant cells show capacity for mending nervous system

...entral nervous system.Transplanted into the spinal cords of fetal and newborn rats that lack myelin, atissue that covers some nerve fibers, the cells were observed to promote thegrowth of the myelin sheaths essential to the ability of nerves to conductelectrical impulses and function normally. "Thi...

Yale and Alexion report advance in spinal cord repair

...ig cell transplantationinto injured primate spinal cords reflect the results we've seen earlier inrodent models of spinal injury." "The achievement of survival and functioning of our patented transgenic cellsafter transplantation into the damaged spinal cord of a primate represents aparticularly important ...

New treatment may relieve chronic pain, as reported in the 19 November issue of Science

...e P, and injected the hybrid pairs into the spinal cords of rats. When the substance P bound with the receptor on certain neurons, the cells brought about their own destruction by ushering these molecules and their neurotoxin companions inside. A short while later, the rats became far less sensitive to sti...

Can Superman get off the ventilator and breathe normally?

...ir into the lungs and air is moving past the vocal cords (the inspiration phase), a period of time that is less than two seconds in duration. That is why speech is so halted and unnatural. When Conlan is off the ventilator and on the pacing device, he speaks normally, while his lungs are exhaling air, ...

New materials hold promise for human healing applications

... repairing the human esophagus and replacing vocal cords and structures in the larynx removed in cancer surgery or damaged in trauma. The only option for such patients currently is to use artificial devices that enable them to speak. The third material is derived from the livers of pigs and other mammals. ...

Device liberates quadriplegic from ventilator

... speak only when air makes a trip across his vocal cords while it is being pumped into his lungs. "I love that I don't have to wait for the darn vent to give me a breath," said Conlan. "With the pacing device, I can continue to talk just like a normal person would. It is quite the difference, quite the di...

Plastic tube may help treat paralysis

...atment for paralysis in humans. Rats whose spinal cords had been cut walked somewhat better eight weeks after a plastic tube filled with chemicals that promote nerve growth was implanted in their spine. We know the rats improved. What we have to do now is figure out how significant the improvement is, sai...

American Chemical Society meeting features cutting-edge research August 26-30 in Chicago

...urages damaged nerve cells to regrow in rats whose cords have been surgically severed. The treatment, which restored some walking movement in the rats, could lead to new treatments for paralysis in humans. ( MACR 29, Tuesday, August 28, 4:15 p.m.) Wednesday, August 29 Symposium explores safety, e...

UFS Mcknight Brain Institute researchers: Pioneering spinal cord procedure appears safe

...ed about a teaspoonful of tissue into their spinal cords in connection with a needed operation to drain and...ansplanted tissue, consisting of developing spinal cords obtained from aborted fetuses 6 to 9 weeks old, would grow enough to keep the cavities filled and pr...

UT Southwestern scientists explain how the injured brain remodels itself

...l therapies to enhance an injured brains or spinal cords restorative capabilities. In the long term, Kernie said, the current results also raise hopes of developing new or more effective human therapies using embryonic or adult stem cells for reducing or overcoming paralysis and other severe brain and spin...

Delayed treatment of spinal cord injury may improve recovery

...erimental therapy several weeks after their spinal cords were severed showed dramatically greater regrowth ...themselves during any steps. When the rats' spinal cords were examined, most (24 of 27) of the animals that received delayed transplants plus neurotrophins h...

Blood markers may reflect newborns' potential of contracting HIV

....D., Ph.D., studied lymphocytes from the umbilical cords of 23 babies born by vaginal delivery or elective C-section, as well as cells taken from eight babies born to mothers who had chorioamnionitis (a bacterial infection of the amniotic sac) or preterm labor. None of the women had HIV. Checking for sp...

Cells in patients noses hold potential to restore function in spinal cord injury

... olfactory ensheathing glial cells into the spinal cords of paralyzed adult rats recently has been shown to promote neuronal cell repair and restore function. After transplantation, the rats were able to walk, even climb over complex terrain, and respond to touch and proprioception (stimuli originating in...

Astrocytes play starring role in neural stem cell development

...y speculation at this point, it may be that spinal cords fail to regenerate not because the stem cells aren't there, but because there is something missing in their glial cells. Thus, developing spinal cord regeneration therapies might mean supplying some factor produced by glial cells," said Stevens....

Clonal human (hNT) neurons re-establish connection in rats with severe spinal cord injury

...ed restore the function of severely injured spinal cords in rats, University of South Florida researchers s...eeded to determine if rats with reconnected spinal cords can walk again. "We are hopeful that our work with hNT neurons in an animal model for spinal cord i...

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