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Sheaths in Medical News

Grant for brain tumor and deafness research

...a protein called merlin, which in turn cause cancers in a range of cell types including Schwann cells in the nervous system. Schwann cells produce the sheaths that surround and insulate neurons. Although the tumours are benign, they are frequent. They can be inherited and come in numbers. The sheer number...

Cat Food-Linked Illness Yields Clues to MS

...ost the fatty myelin insulation that helps signals pass along these axons. Once off the diet, though, the cats' bodies reestablished thinner myelin sheaths that allowed the cats to recover fully, but slowly. "The fundamental point of the study is that it proves unequivocally that extensive remyelinat...

Insightra Medical, Inc. Gains FDA clearance for the Most Complete Range of 7Fr Intra Aortic Balloon (IAB) Catheters

...ation of catheter technology, unique balloon extrusion and folding techniques means the Insightra 7Fr catheter is a true 7Fr and will fit down all 7Fr sheaths routinely available in the cath lab. "Despite the fact that IAB technology is not new, the Insightra line really provides a surprising number...

Neurons Can Re-Grow in Some MS Lesions

... The study included nine people with multiple sclerosis (MS) and a control group of four healthy people. In MS, the immune system destroys the myelin sheaths that surround and protect nerves. When the myelin is destroyed, the nerves misfire, and nerve impulses can be slowed or disrupted. The researchers ...

Breakthroughs Offer Hope to MS Patients

... fight multiple sclerosis is safe and stands a good chance of being effective. The vaccine works by thwarting the immune system's attack on the myelin sheaths protecting nerve fibers. Other advances noted by Lou include: Better and earlier diagnosis owing to advances in imaging technology. Improv...

Best treatment for MS may depend on disease subtype

...ed the activity of specific inflammatory agents that are induced by each type of T cell as the immune system mounts its misguided attack on the myelin sheaths of nerve cells. Both groups of mice developed similarly severe and rapid paralysis. But the researchers found clear differences in the inflammator...

NWO/Spinoza Prize for literature, microbiology, physics and medicine

...of the brain there are billions of nerve fibres, which connect the grey cerebral cortex to the rest of the body. These fibres are surrounded by myelin sheaths for insulation. The nerve fibres and the myelin together form the white matter. White matter disorders affect one in every thousand children in the We...

Protein key to neuro-regeneration

...wann cells which is vital for the way in which the peripheral nervous system regenerates and repairs itself after injury. Schwann cells produce the sheaths that surround and insulate neurons. When there is damage to the peripheral nervous system Schwann cells unwrap themselves from the degenerating axon. ...

Chemotherapy causes delayed severe neural damage

... with which information is transferred from the ear to the brain. Myelin sheaths are necessary for normal neuronal function. One key finding of the study wa... cells of the CNS but also for the cells that produce the insulating myelin sheaths (non-dividing oligodendrocytes). The delayed damage the researchers measure...

Research to lead to brain tumor therapies

...ffecting a protein called merlin, which in turn cause cancers in a range of cell types including Schwann cells in the brain. Schwann cells produce the sheaths that surround and insulate neurons. Although the tumours are benign, they are frequent, can be inherited and come in numbers. The sheer number of t...
Sheaths in Medical Products

Safety Wire Guide Introducer Sheaths and Obturators

Description: Used for antegrade placement of a safety wire guide prior to endourological procedures. Supplied sterile in peel-open packages. Intended for one-time use....
Company:Cook Urological

TFE Sheaths For Amplatz Renal Dilators

Description: Used for dilation of a tract to the kidney for removal of stones. Supplied sterile in peel-open packages. Intended for one-time use....
Company:Cook Urological

Amplatz Renal Dilators with Sheaths

Description: Used for dilation of a tract to the kidney for removal of stones. Supplied sterile in peel-open packages. Intended for one-time use....
Company:Cook Urological

Convoy Catheter Introducer Sheaths

Description: The soft tip sheath design for smooth delivery and retrieval of Constellation advanced mapping basket catheters....
Company:Boston Scientific Corporation

Sterile Disposable Thermal Cautery Tips

Description:... Sterile Disposable Thermal Cautery Tips for Vasectomy. Individually peel-pouched with dual plastic sheaths to cover non-sterile handle. Box of 10 tips....
Company:Advanced Meditech International, Inc.

Stryker Cystoscopes

Description:... Stryker's cystoscope line combines market-leading optical performance with intuitive and durable hardware. The color-coded cystoscope sheaths incorporate a robust, ergonomic design and patented speed-lock connection found on Stryker endoscopes. The results are a best-in-class picture with de...
Company:Stryker Corporation

Adult One-Piece Cystoscopes

Description:...s is proud to announce the release of the OES Pro line of One-Piece Cystoscopes. Combining our legendary optics with our most commonly used cystoscopy sheaths has taken Olympus Rigid Urology to a higher level. Now you can have one instrument that performs it all. Thanks to the integrated design, the OES Pro ...
Company:Olympus America Medical

USA Elite System™ MRO™-20 Rigid Percutaneous Nephroscopes

Description:...orking throughput capacity with proven MRO performance. These nephroscopes provide large operating channels with small size sheaths. The MRO™-20 sheaths have rotating irrigation ports for easy positioning during percutaneous procedures. The molded body design has offset optics for comfortable viewing, ...
Company:GYRUS ACMI

S-Series Cystourethroscope Albarran Bridge, double-horn

Description:... Albarran double-horn bridge for use with sheaths from 20-25 Fr and designed for accurate articulation of flexible devices....
Company:GYRUS ACMI

Elite System II

Description:...stinguished features of the USA Series products such as Snap-In Snap-Out locking mechanisms, color coding, durability, compatibility with resectoscope sheaths without the need of an adapter, and compatibility with ACMI's advanced USA Elite System M3 optical system....
Company:GYRUS ACMI
Sheaths in Medical Dictionary

Myelin

...isorders and ... axons showed manifold abnormalities, sometimes even within a not visibly altered myelin ... In keeping with this, both myelin sheaths ... For the first time, researchers have used human embryonic stem cells to create new insulating tissue for nerve fibers ... Sclerosis, My...

Condom

...: Purpose Precautions Resources Condom Definition Male condoms are thin sheaths of latex (rubber), polyurethane (plastic), or animal The Circle Of Life...man's ... Most condom failures are due to misuse. ... From Itty-Bitty sheaths to Scotch-Flavored Jimmy Hats (CLUSTER): This selection of condom innovat...
Sheaths in Biological News

Claudin 11 stops the leaks in neuronal myelin sheaths

Devaux and Gow demonstrate how a tight junction protein called claudin 11 makes the neuronal myelin sheath a snug fit. The study will be published in the December 1, 2008 issue of the Journal of Cell Biology ( www.jcb.org ). Like the rubber coating on a copper wire, the myelin sheatha membran...

Spun-sugar fibers spawn sweet technique for nerve repair

...ynthetic scaffold resembles the structural assembly of natural nerves, which are made of thousands of small tubes bundled together. These tubes act as sheaths that house the conducting elements of the nerve cell. The first step in making the tubes is to spin sugar fibers from melted sucrose. "It's basi...

Promising new nanotechnology for spinal cord injury

...ucts the stem cells --which would normally form scar tissue -- to instead to produce a helpful new cell that makes myelin. Myelin is a substance that sheaths the axons of the spinal cord to permit the rapid transmission of nerve impulses. The gel's scaffolding also supports the growth of the axons in tw...

September Geology and GSA Today media highlights

...nges, the pH of the microbial sheath rises dramatically and induces the precipitation of calcium carbonate minerals. Identification of these calcified sheaths in the geologic record thus place an upper limit on pCO2. Atmospheric concentrations of CO2 Cryptic meteoric diagenesis in freshwater bivalves: ...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...age of nearly two per cent during this time. In addition, levels of two chemicals, which are indicators for how well the brain’s nerve cells and nerve sheaths are constituted, rose significantly. The increase of the nerve cell marker correlated with the patients performing better in a test of attention and c...

Selectively blocking inflammatory signals may protect mice from MS

... 40 percent. Those with the protective SOCS1 gene lost only eight to 15 percent. High interferon levels were also associated with loss of myelin sheaths around nerve connections and unprotected axons in the brain. Again, SOCS1 was able to reduce the damage. "Together," the researchers wrote, "these...

Anti-inflammatory drug's potentially deadly side effect found to be rare

... Medicine." In patients with PML, the virus (named the JC virus for the first patient it was identified in) destroys the cells that make protective sheaths surrounding brain cells. Symptoms include vision loss, mental deterioration, speech disturbances, loss of coordination and, in advanced phases, paraly...

Scientists discover the molecular switch for nerve cells' insulating jelly rolls

...Schwann cells, the nervous system's cellular architects, to build elaborate sheaths of myelin around the axons of nerve cells. Axons are the long cable-like ar...d of just sitting on the axons, the Schwann cells now produced thick myelin sheaths around them. So it appears that the gene instructs the Schwann cells to bui...

Molecular Partners Required For Appropriate Neuronal Gene Repression

... to those seen in individuals with multiple sclerosis (MS). Further investigation revealed that the tremors were associated with the loss of myelin sheaths on nerve cells, very similar to the myelin loss associated with MS and other neurological diseases, as well as in premature infants. In addition, Sher...

OHSU researchers discover potential mechanism to repair brain damage linked to Multiple Sclerosis

... to those seen in individuals with multiple sclerosis (MS). Further investigation revealed that the tremors were associated with the loss of myelin sheaths on nerve cells, very similar to the myelin loss associated with MS and other neurological diseases, as well as in premature infants. In addition, Sher...
Sheaths in Biological Technology

Terumo Interventional Systems Launches a Complete Line of Coronary Diagnostic Catheters

...ems (TIS), a strategic business unit of Terumo Medical Corporation, directly markets a full line of guidewires, catheters, introducer sheaths, guiding sheaths and embolization products for use in a multitude of different interventional procedures. Interventional Radiologists, Interventional Neuroradi...
Sheaths in Biological Definition

Crassulacean acid metabolism

...ylated into PEP and then be recycled to fix more carbon. In some ways, CAM resembles C 4 metabolism, except that CAM plants contain no bundle sheaths around their veins, and C 4 metabolism is continuous, while CAM only occurs at night. ...

Crassulacean acid metabolism

...ylated into PEP and then be recycled to fix more carbon. In some ways, CAM resembles C 4 metabolism, except that CAM plants contain no bundle sheaths around their veins, and C 4 metabolism is continuous, while CAM only occurs at night. ...

Neuron

...c expense of carrying action potentials, although thicker axons convey the impulses more rapidly, generally speaking. Many neurons have insulating sheaths of myelin around their axons, which enable their action potentials to travel faster than in unmyelinated axons of the same diameter. Formed by gl...
Sheaths in Biological Dictionary

Nodes of Ranvier

... Nodes of Ranvier are the gaps formed between the myelin sheaths generated by different cells. A myelin sheath is a many-layered coating, largely composed of a fatty substance called myelin, that wraps around th...
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