Tag: "fibers" at medical news
Miniature implanted devices could treat epilepsy, glaucoma
...essure in the interior chamber of the eye, killing fibers
in the optic nerve. Glaucoma patients go to the doctor periodically to have their eye pressure checked. If it is high, the doctor prescribes medication or performs surgery. "The problem is that your interocular pressure spikes over hours, sometimes...
'Cars' imaging reveals clues to myelin damage
...the deterioration of myelin, which insulates nerve fibers
and enables them to properly conduct impulses in the spinal cord, brain and peripheral nervous system throughout the body. The findings suggest that LPC causes sheath degradation by allowing an influx of calcium ions into the myelin. The increased ...
Nanomedicine opens the way for nerve cell regeneration
...nerve. The severed nerve can regenerate; the nerve fibers
from the nerve end closest to the spinal cord have...e. This autograft then serves as a guide for nerve fibers
to cross the injury gap. Although successful, this autograft procedure has major drawbacks including...
NIH study tracks brain development in some 500 children across US
... the brain, DTI allows them to see the networks of fibers
that connect these parts. To peer into the normal developing brain, the investigators sought children from diverse geographic, socioeconomic and ethnic backgrounds. They recruited children from six sites across the U.S.: Children's Hospital in B...
Nerves controlling muscles are best repaired with similar nerves
...e motor nerves are bigger, while the sensory nerve fibers
are smaller," he said. "When the nerves are trying to regenerate using a motor nerve as a graft, it's easier for them to use the larger axons of another motor nerve, although the reason why is not clear." The results could eventually translate into...
MS drug helps reduce vision loss
...on loss due to inflammatory demyelination of nerve fibers
that connect to the eye, which is common in MS." However, Balcer said the potential benefits of natalizumab treatment must be weighed with the drug's potential risks or complications, including the rare, often lethal brain disease progressive multi...
Penn researchers find treatment for MS also reduces vision loss in MS patients
...on loss due to inflammatory demyelination of nerve fibers
that connect to the eye, a common cause of visual loss in MS," says Laura J. Balcer, MD, MSCE, Associate Professor of Neurology and Ophthalmology at Penn, and lead author of the paper. The researchers analyzed data from two randomized, double-bli...
The Natural Fat-Loss Pharmacy by Dr. Harry Preuss
.... Psyllium, pectin, and guar gum are other soluble fibers
that work similarly. 5-HTP (5-Hydroxyl-L-tryptophan): Due to high-stress, many people in America have low levels of serotonin, a brain chemical that controls appetite and mood. The result: overeating. 5-HTP is a natural amino acid that boosts s...
Common blood pressure drug treats muscular dystrophy in mice
...tive. This TGF-beta-blocking protein caused muscle fibers
in these mice to grow bigger than those in untreat...th in early adulthood or before. DMD causes muscle fibers
to be incredibly fragile. As a person with DMD ages, their muscles slowly lose the ability to regene...
Exploring the molecular origin of blood clot flexibility
...ogy, measured the elastic properties of individual fibers
and found that the fibers, which are long and very... molecular level, suggesting a way that individual fibers
flex - by the unraveling of the three, tightly twisted rod-like regions within fibrinogen molecules,...
Molecular structure reveals how botulinum toxin attaches to nerve cells
...ing the communication between the nerve and muscle fibers
throughout the body. Poisoning with botulinum toxins leads to an often-fatal paralysis, which is one reason they are considered among the highest biodefense research priorities by the U.S. government. As part of its overall biodefense program, the...
Natural, soy-based substance might help fight MS, Jefferson neuroscientists find
...s system (CNS). In MS, the myelin coating of nerve fibers
becomes inflamed and scarred. As a result, messages cannot be sent through the nervous system. Dr. Rostami, who is also director of the Neuroimmunology Laboratory in the Department of Neurology at Jefferson Medical College, and his group used an a...
Fibers used in bullet-proof vests quadruple toughness of dental composites
...eering tests on dental composites containing glass fibers
as well as the type of polyethylene fibers
used in bullet-proof vests. Karbhari and Strassler found that the toughness of fiber-reinforced d...
Three-dimensional, miniature endoscope opens new diagnostic possibilities
... organs and structures utilize bundles of optical fibers
to supply light to and transmit images from the areas of interest. Larger endoscopes that use image sensors to produce high-quality, two-dimensional images can be a centimeter or more in diameter. Existing miniature endoscopes using smaller fiber b...
New studies in the journal Sleep focus on helping children, women sleep better
...on the other hand, induces a loss of noradrenergic fibers
which, in turn, throws a person's sleep-wake rhyth... verified by immunohistochemistry of noradrenergic fibers
in the frontal cortex. "DSP-4 decreased the amplitude of the sleep-wake rhythm in LD animals by ...
Scientists learn more about how roughage keeps you 'regular'
...n the cellular scale, roughage, such as grains and fibers
that can't be completely digested, are a mechanical challenge for these cells," says Dr. McNeil. But in what he and colleague Dr. Katsuya Miyake view as an adaptive response, most of these cells rapidly repair damage and, in the process, excrete e...
Proteins spur diabetic mice models to grow blood vessels, nerves
... neural guidance cues, which induce axons or nerve fibers
to extend in specific directions during development. In 2004, Li and his colleagues showed in laboratory cultures that in addition to promoting nerve growth, Netrin-1 also induced formation of blood vessels....
Different forms of amyloid beta in Alzheimer's disease harm neurons in different ways
...s patients is in fibrillar form -- long, insoluble fibers
bound together in deposits called senile plaques; ...r amyloid and try to break them up, because if the fibers
dissolve into the soluble form, that could actually speed up cell death and the onset of dementia ra...
Cure for reading glasses may be in view
...40, O'Donnell says. The predominant belief is that fibers
created in the intraocular lens accumulate and sti...potentially solve presbyopia is to laser away some fibers
to restore flexibility, but there is no way to know how much or where to cut, he adds. "There are n...
Early treatment favored for multiple sclerosis
...se of disease). Studies show that injury to nerve fibers
which leads to the progression of disability that can occur in people with MS begins early in the course of the disease. Even if a person appears to be doing well, with few clinical relapses, there may be evidence on MRI of tissue damage and loss t...
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