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Tag: "prevents" at biology news

UF scientists restore sight to chickens with blinding disease

...sland Red chicken -- carries a genetic defect that prevents it from producing an enzyme essential for sight. The condition closely models a genetic disease in humans that causes Leber congenital amaurosis type 1, or LCA1. About 2,000 people in the United States are blind because they have a disease that falls...

Magnetism and mimicry of nature hold hope for better medicine, environmental safety

... That is crucial to accurate analysis because it prevents the chemicals and other materials in the droplet from combining and reacting with the chemical compounds in the surface material and thereby contaminating the test sample of fluid. The process is the crux of what the researchers call "lab on a chip...

Tiny airborne particles are a major cause of climate change

...surface and the upper atmosphere. This combination prevents atmospheric instability ?the condition needed to form clouds and rain. A stable atmosphere means fewer clouds; fewer clouds mean less reflection of sunlight; less reflection of sunlight and absorption of radiation lead to warming. Policy makers hav...

New egg freezing technique offers hope to hundreds of women

...n, before storing in liquid nitrogen. This process prevents ice crystals forming, which do so much damage to the structure of the egg. Dr Kuwayama froze 111 eggs, of which 94.5% survived freeze-thawing, 90.5% were fertilised using ICSI (intra-cytoplasmic sperm injection), and 50% of the resulting zygotes were...

Study reveals details of mussels' tenacious bonds

...ided coating that sticks securely to a surface and prevents cell, protein and bacterial buildup. "For example, we may be able to take advantage of the reactivity of oxidized DOPA to form covalent bonds between adhesive DOPA-containing polymers and human tissue surfaces." ...

Gold nanoparticles could improve antisense cancer drugs

... the messenger RNA by using 'antisense DNA,' which prevents the message from ever becoming a protein." Once inside cells, the DNA-modified nanoparticles act as messenger RNA "sponges" that bind to their targets and prevent them from being converted into proteins. In their experiments the researchers target...

Finding paves way for better treatment of autoimmune disease

...iruses; regulatory T cells are a small subset that prevents the cells from also attacking body tissue. Research published in the August issue of Nature Methods shows that, given the option, phospholipase D, which typically mixes with water, prefers alcohol. It's an apparently lethal choice for the signal...

Study shows pine bark naturally decreases severe chronic venous insufficiency

...es have shown that treating edema with Pycnogenol® prevents the development of spider veins. Pycnogenol® also helps prevent existing spider veins from getting larger and more prominent. When edema is successfully treated, the increased pressure on veins gets normalized, preventing the veins from further incre...

Bacteria have their own immune system protecting against outside DNA

...rotein called H-NS that recognizes foreign DNA and prevents it from becoming active, the researchers discovered. But bacteria can also benefit from foreign DNA. When Salmonella is infecting an animal or person, for instance, many proteins the bacteria need to cause disease are encoded by DNA acquired from ot...

Green tea and the 'Asian Paradox'

...e said. Sumpio said other reports show that EGCG prevents growth of certain tumors. Tea, according to studies, also can improve gastrointestinal function, alcohol metabolism, kidney, liver and pancreatic function, protect skin and eyes and alleviate arthritis. Tea has been used in managing and preventing al...

Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs

...stems. Protecting the new El Dorado Nature Reserve prevents destruction of valuable and rare biodiversity, and also ensures a clean water source for coastal towns that depend on two watersheds that have their sources at the site ...

Weizmann Institute scientists discover a molecular security mechanism for keeping mutations in check

...team recently discovered a security mechanism that prevents such proliferation of mutations. This mechanism allows the right enzyme to go to work at the right time, and only when it's needed. The main components in this system are the proteins p53 and p21. p53, named "molecule of the year" several years ago b...

Salk scientists untangle steroid hormone signaling in plants

...in the cytoplasm--that BIN2 meets up with BES1 and prevents it from activating growth genes. "All of a sudden the 'BES1 shuttle model' no longer made sense," says Vert, adding that it took many carefully designed experiments to convince himself and others that it was time to retire the old model. A new pictu...

Ozone recovering, but unlikely to stabilize at pre-1980 levels, says study

...in the cytoplasm--that BIN2 meets up with BES1 and prevents it from activating growth genes. "All of a sudden the 'BES1 shuttle model' no longer made sense," says Vert, adding that it took many carefully designed experiments to convince himself and others that it was time to retire the old model. A new pictu...

New treatment for severe malaria

... Mats Wahlgren, has now developed a substance that prevents infected blood cells from binding in this way. The substance also releases blood cells already bound. Using this method, scientists have been able to treat severe malaria in rats and primates effectively; it now remains to be seen whether these resul...

New angiogenesis finding may help fight cancer growth

...t NK-B could inhibit angiogenesis in four ways. It prevents the production of vascular endothelial growth fact...vessel formation may be to blame. Because NK-B prevents endothelial cells from organizing into blood vessels, Bresnick says, "Maybe excess levels of NK-B ar...

Analysis of breast-cancer gene role offers promising target

...investigation would be to develop an antibody that prevents uPAR from binding to a molecule called uPA that can activate uPAR," Dr. Uhr said. ...

Vaccine combined with short-term postexposure antibiotics protects monkeys from inhalational anthrax

...ule. The capsule surrounds the vegetative cell and prevents it from being ingested by host white blood cells that would otherwise destroy it, thus allowing anthrax infection to progress. The toxins are thought to act mainly by damaging defensive cells called phagocytes, causing the immune system to malfunctio...

Protein shown to rally biological clock

...ze their ; GABA, he says, is like the marshal that prevents he cells from being too active. Herzog and Aton recorded neuron activity from the SCN using a multielectrode array with 60 electrodes upon which they place SCN cells, a “clock in a dish.? They also recorded gene expression in real-time using a bio...

A transplant in time

In hemophilia, a mutated gene prevents the production of a critical blood-clotting protein. Treatments for hemophilia and other such genetic diseases, when they exist, may consist of risky blood transfusions or expensive enzyme replacement therapy. But what if the body could be induced to...

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