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Tag: "internal" at biology news

Bush, Cheney and Rumsfeld are now species of slime-mold beetles -- but strictly in homage

...nal of Medicine, Dr. Benjamin Levine, professor of internal medicine at UT Southwestern, said competitive runners are less likely to suffer from hyponatremia. "Those who are running to finish the race very fast don't have time to drink a lot of water along the way," Dr. Levine said. "Those who are not runnin...

Too much water may be as dangerous as too little during long-distance athletic events

...nal of Medicine, Dr. Benjamin Levine, professor of internal medicine at UT Southwestern, said competitive runners are less likely to suffer from hyponatremia. "Those who are running to finish the race very fast don't have time to drink a lot of water along the way," Dr. Levine said. "Those who are not runnin...

Discovery clarifies role of peptide in biological clock

... lacking the receptor molecule for VIP suffer from internal de-synchrony. When they recorded the electrical ac...hat the biological clock is still running, but its internal synchrony is uncoordinated. This causes irregular patterns of sleep and wake, for example." The stu...

Basis for DNA ejection from single phage particles

...still poorly defined. It was hypothesized that the internal pressure built during packaging of the DNA in the phage capsid was responsible for DNA ejection. This pressure results from the condensation of the DNA during morphogenesis ?for example, another group recently showed that the pressure at the final st...

Could microbes solve Russia's chemical weapons conundrum?

...n, and severe damage to the respiratory system and internal organs if ingested or inhaled. It accounts for around 2 percent of Russia's CWA stockpile. Around 60 percent of the mustard RM consists of derivatives of a toxic compound called 1,4-perhydrothiazine (PHT). Ermakova's research team grew P putida in ...

OneWorld Health drug receives 'Orphan' designation from U.S. and European regulatory agencies

...ies, which spread leishmania parasites that attack internal organs. An estimated 1.5 million people worldwide are currently infected; the number of new VL cases per year is estimated at 500,000; and as many as 200,000 people die annually. More than 90 percent of VL cases occur in five countries: India, which ...

Biochemists report discovery of structure of major piece of telomerase; implications for cancer

...ction. The enzyme is unique because it has its own internal piece of RNA that is used to copy the DNA, but this 'template' is only approximately 10 of the 451 nucleotides. Nobody knows what the rest of the RNA is really doing as part of this enzyme; that is what we're trying to understand. We're getting close...

NIH Researchers Discover How Insulin Allows Entry of Glucose Into Cells

...heir observations using a technique known as total internal reflector florescent microscopy. The technique consists of aiming a laser beam at an angle at the glass cover slip beneath the microscope, explained the last author of the paper, Vadim A. Frolov, Ph.D., of NICHD’s Laboratory of Cellular and Molecular...

Cerebral navigation: How do nerve fibers know what direction to grow in?

...d, causing it to alter the cell's cytoskeleton, or internal scaffolding. This alteration makes the growth cone collapse, steering the axon in a new direction or halting its growth. In chicken motor neurons whose ephexin1 was inactivated, the axons grew into the hind limb prematurely, indicating faulty axon gu...

Discovery may lead to better Candidiasis drug

...regulate electrostatic pressure between the cells' internal and external environments, which, in turn, regulates their volume and water content. Cells that lose their water content without being able to regulate its re-uptake die rapidly, Edgerton said. "Now that the target for histatin has been identified, ...

Insight into natural cholesterol control suggests novel cholesterol-lowering therapy

...nd to a high cholesterol diet by shutting down its internal synthesis, he explained. However, the molecular mechanisms by which cholesterol and other related compounds exert that self-control have only more recently begun to emerge. The researchers now demonstrate that lanosterol--an intermediate compound in...

Effective Cancer Treatments Follow The Clock

...they harness the power and precision of the body's internal clock. The research team, which included senior a...cted in mice, the scientists found that the body's internal biological clock affects the survival of immune cells that are targets of the anti-cancer drug cyclo...

Kinovate Life Sciences Launches Nittophase?High Performance Solid Support For Oligonucleatide Synthesis

...e?will deliver unmatched performance.?/p> “Our internal testing and analysis of NittoPhase?has clearly validated this product in terms of technical and cost performance. As a result of our partnership with Nitto Denko Corporation, Isis is pleased to incorporate NittoPhase?into its own drug development ope...

New Treatment Rivals Chemotherapy For Lymphoma, Study Finds

...r for this disease," says Kaminski, a professor of internal medicine at the U-M Medical School. "New studies can now be designed to begin to test this possibility," he adds. Previous stories : - New Radioimmunotherapy Drug Proves Highly Effective For Killing Off B Cell Non-Hodgkin's Lymphoma - Newly Appr...

New methods of gene delivery using lasers

...en up, allowing foreign genes to enter. The cell’s internal mechanism causes the membrane of the cell to heal itself thus appearing to suffer no long-lasting damage. After inserting the genes, the team grew the cells, which appeared to remain healthy and multiplied normally. The presence of the inserted gene ...

Study of genomic DNA leads to new advances in cancer diagnostics

...group also implicated the cell's cytoskeleton, the internal scaffolding that gives the cell its shape, in this process. Changes to the ECM and cytoskeleton are critical to migration of a cancer cell from one site in the body to another. The researchers could alter the Alu I sensitivity of a cell's chromatin ...

Research Gives Hope For Liver Damage

...atment for liver cirrhosis which isassociated with internal bleeding, liver failure and the development ofprimary liver cancer. There is a huge imperative to develop newapproaches to the treatment of liver scarring. Exciting insights suchas these will inform the design of future therapies."Further research in...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

... volume it uses while flying. The result is excess internal oxygen that can cause oxidative damage -- the dest...ost insects stop breathing in order to lower their internal oxygen concentration to physiologically safe levels, and that they then substantially reduce gas exc...

Researchers find missing genes of ancient organism

...ind each other and splice, are somewhat similar to internal sequences found in tRNA genes of more complex organisms., These regions, termed introns, are sequences that are cut out of whole gene transcripts during the process of tRNA maturation. The known tRNA introns in organisms like yeast, however, appear t...

Weill Cornell Research Reveals Secrets Of Trafficking Within Cells

...-- and others throughout the body -- depends on an internal process called endocytosis to keep the flow of cellular nutrients and information healthy and strong. It's an incredibly important life process, and now researchers at Weill Medical College of Cornell University in New York City have used an excitin...

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