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Tag: "membrane" at medical news

How Ion Channels are Organized to Control Nerve Cell Communication?

...d by cells. These signals depend on ion channels – membrane proteins found in excitable cells, such as nerve cells – that allow them to generate electrical signals, depending on whether the channels are opened or closed. Prof. Eitan Reuveny, together with Ph.D. students Inbal Riven and Shachar Iwanir of th...

A Protein in Brain Cells Controls Obesity: Research

... to shuttle between the area just beneath the cell membrane and the nucleus, it can bind to many different molecules and facilitate signaling. Specifically, it can bind to a variety of molecules called tyrosine kinases, including ones that serve as receptors for insulin and growth factors that circulate in ...

Risk of Hemorrhage Increased in Vaginally Born Babies

...hematomas—bleeding between the brain and the thick membrane that covers the brain below the skull—and a majority of them were located in the lower, back part of the brain over the occipital lobe or the cerebellum, which is below the occipital lobe. Typically, small bleeds resolve over time without causing p...

How Bacteria Generate Energy to Live?

...the project, studies an enzyme that resides in the membrane that encapsulates V. cholerae. This enzyme, known ...needs to carry ions from one side of the bacterial membrane to the other, the enzyme has to reach all the way from the water-like medium inside the cell, throug...

Gene Behind Lincoln’s Diseas

...the strain of movement, and not by helping add new membrane to a growing nerve cell. "Everybody focuses on the synapse or the cell body as to where the action is," he says. "But if you break the wire or axon, the neuron doesn't work anymore. It's sort of the weakest link in the process." Source-Eurekalert...

FDA Clears Critical Limb-Saving Vascular Device

...auma situation, including a self-sealing elastomer membrane that permits drugs to be injected directly into the shunt without loss of blood; beveled ends that facilitate quick and effective placement of the device within the severed blood vessel; graduated markings that provide visual confirmation of proper d...

First Treatment to Directly Target Tumor Blood Supply

...ody called J591, targeted to the prostate specific membrane antigen (PSMA). PSMA has been an attractive target for cancer drug development because it is not only present in high amounts in prostate cancers but it also is the only known molecular target present on tumor blood vessels but not normal blood ves...

Now Fight Iron Disorders With a Drug Against Hypertension

...ect is still unknown. Nifedipine is known to block membrane channels that control Ca2+ influx into cells, but if it exerts its effect on iron transport indirectly by changing Ca2+ levels in the cell or by binding directly to DMT-1 in liver and kidney still needs to be determined. "Understanding the exact m...

Max Planck Researchers Incorporate Odorant Receptors into Artificial Membranes

...stry recently revealed a technique for integrating membrane proteins into artificial structures. Membrane p...ve now managed to incorporate in-vitro synthesized membrane proteins directly into artificial lipid membranes. The senses of living organisms function using v...

QUT Scientists on the Way to Sifting Out a Cure for HIV

... in mind we have introduced radical changes to the membrane texture because it is the membrane texture which is crucial to the separation efficiency of the material," he said. "It is scientific...

Cholesterol and Insulin Secretion -bound by a Gene

...mount is beneficial to the body as it aids in cell membrane function, meaning it regulates the materials entering and leaving a cell. The presence of cholesterol in the pancreas and its high expression was brought to the lead author’s notice by one of his students, Dr. Liam Brunham .In response to that the...

Fruit Flies May Pave Way to New Treatments for Age-related Heart Disease

...an heart function.” The researchers focused on a membrane channel in the tiny Drosophila heart called KCNQ. This membrane channel, found in flies and humans, regulates the heart’s ability to return to a relaxed state after...

Cancer Cells Forming Blood Vessels Send Their Copper to the Edge

...nd out between one another and across the cellular membrane within the first two hours.” Copper did, indeed, appear to play a special role in angiogenesis, at least on the basis of this observation. To extend these studies to a living organism, Finney and her colleagues then examined sections of breast tumo...

Natural Antibiotics Yield Secrets to Atom-level Imaging Technique

...le's structure in the complex and challenging cell membrane environment, Ramamoorthy said. "Just as an MRI pro...g parts of the molecule might make it fit into the membrane better, resulting in greater effectiveness with smaller amounts of AMP. "Our overall mission is to...

J591- an Antibody Exclusively Targets Tumors

...onducted this study. Since the prostate-specific membrane antigen (PSMA) exists only on tumors and not other tissues, J591 armed with a drug or radiation offers a way to selectively target cancer while leaving healthy tissues unharmed, thereby resulting in very low levels of toxicity and fewer side effects ...

Let Blind Eyes Be Opened - Stem Cell Therapy and Aniridia

...otic membranes sourced from donated placentas. The membrane dissolves within 2 to 3 weeks and within a few months the stem cells trigger the complete growth of the epithelium, or top layer of the cornea. They themselves disappear then ,thus eliminating the need of immuno-suppressant drugs. So far Daya h...

Chicken Pox Rears Its Head in Tamil Nadu, Yet Again

... tackle the problem. Doctors caution that brain membrane would be the first casualty if chicken pox is not controlled immediately in the first stage itself. Some cases have been already reported in a rather serious condition and the number of those admitted in hospital is increasing. In the state capit...

Penn Scientists Engineer Small Molecules to Probe Proteins Deep Inside Cell Membrane

...st drug molecules//. One third of all proteins are membrane proteins – embedded within the cell’s fatty outer ...an bind to only one of a number of closely related membrane proteins." The researchers targeted two transmembrane proteins called integrins that influence the...

A Newly Identified Immunosuppressive Protein in Rheumatoid Arthritis

...last-like synoviocytes (FSL)—cells in the synovial membrane instrumental to the production of cartilage as well as synovial fluid. Featured in the April 2007 issue of Arthritis & Rheumatism (http://www.interscience.wiley.com/journal/arthritis), their findings expose DcR3 as one of the factors culpable for RA'...

Combined Imaging Approach may Provide Better Identification of Difficult-to-diagnose Brain Clots

...tinctions between abnormal and normal veins in the membrane around the brain," explains Leach, a neuroradiolog...dural sinus thrombosis. This is a condition in the membrane surrounding the brain where blood flow has been partially reestablished in a previously blocked vess...

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