Tag: "keeps" at biology news

DNA sequence controls expression of gene involved in cancer

...hat inhibits cell death or apoptosis. This protein keeps death-promoting factors from producing holes in the mitochondria which can result in calcium and destructive proteins leaking out into the cell. However, the overexpression of bcl-2 in damaged cells can lead to the continued division of the mutated c...

How roots control plant shoots

...andle on a water faucet. In a normal plant, BPS1 keeps the faucet shut. But when conditions are bad, it opens the faucet so that the growth-inhibiting carotenoid byproduct flows freely from the roots, telling leaves to stop growing. Sieburth says the study didn't demonstrate what those conditions might...

Arctic mystery no longer: Dinosaurs walked Canada's great north

...may bring new perspectives on ancient life is what keeps me going," he says. Larsson, who teaches biology and is curator of vertebrate palaeontology at McGill's Redpath Museum, is most interested in discovering unknown species. Of particular interest are archosaurian reptiles, (crocodiles), birds and dinos...

Molecule that helps DNA replicate may make good target for cancer therapy

...tes. It does this by attaching to the protein that keeps the two DNA strands from reconnecting. But what came as a complete surprise was that Mcm10 also stabilizes the polymerase alpha complex. In cells lacking Mcm10, the catalytic subunit of the complex--the part that attaches to DNA--was degraded so it c...

Sandbagging cancer in the bloodstream

...ects the mice against metastatic tumors because it keeps the cancer cells "sandbagged" in the bloodstream where they are vulnerable to attack and clearance from the immune system. "You can imagine that a prolonged treatment [with Src kinase inhibitors] may actually help people ward off some of the most de...

The blotchier the face, the better the wasp

...e sparrow's chest. However, biologists wonder what keeps other animals from cheating by displaying a mark that indicates "I'm great" while actually being just average. Scientists hypothesize that social interactions discourage cheating, but demonstrations of such interactions have been elusive. Tibbetts no...

Old riverbed keeps chemicals from entering Ohio River

... balanced with a counterflow from the aquifer that keeps the chemicals in place. Svitana wants to do more computer modeling to understand exactly what makes site capable of trapping the chemicals in this way. If the seesaw effect is not unique to the immediate area, it may help geologists under...

UCSD researchers find effective treatment for unusual fever syndrom caused by cold exposure

...30 a shot," he said. The cost is what keeps many of Hoffman's FCAS patients from benefiting from the new therapy. "When my daughters and I got the injections during the clinical trial, our symptoms went away," Fowler said. "But, I can't afford the high cost and my insurance compa...

Endurance running may be key to evolution of human body form

...ulls which attaches to a broad band of tissue that keeps an animal's head steady when it runs. Traces of this ridge can be found in human skulls dating back several million years, but the fossils of early humans at Harvard's Peabody Museum of Archaeology and Ethnology showed Lieberman and Bramble tha...

Researchers discover defense mechanisms in some plants believed bred out by humans

... football team that surrounds the ball carrier and keeps him from moving. The researchers' project is to understand the interaction between beta-glucosidase and BGAF--how they recognize each other and bind so tightly. Thus far, they have evidence of three genes that make BGAF, but they need to find o...

'Lighter than air' breathing more than doubles COPD patients' exercise endurance

...g degrees of serious breathing difficulties, which keeps them from almost any kind of exercise, especially in advanced stages. So maybe "lighter than air" air would be easier to breath, reduce shortness of breath and perhaps even allow them to do some exercise with all of its physical and mental benefits. ...

New pheromone creates buzz about the clout of older bees

... chemical to the worker bees, and the ethyl oleate keeps them in a teenage state, sort of like being grounded to watch the younger siblings. As the old bees die off, the chemical no longer is fed to nurse bees. Eliminate ethyl oleate and the bees mature into forager "This provides clear insight into how ...

DNA breaks and genomic instability: Broken ends stick together

...st the pulling forces of the mitotic spindle. This keeps the broken ends together as the DNA is repaired and leads to proper chromosome segregation in mitosis....

MSI releases 'moleculizer' - a new approach to simulation of intracellular biochemical networks

...s MSI's discrete stochastic event simulator, which keeps track of the thousands of complex species formed from pathway proteins as it simulates reactions between them by a standard Monte Carlo method. A distinguishing aspect of Moleculizer is its ability to generate protein complexes and reactions as they ...

Researchers tease out one critical role of tumor-suppressor gene

... the childhood disease retinoblastoma, Rb normally keeps cell division in check. That means Rb is a tumor suppressor gene, which keeps cells from growing out of control. Scientists believe that Rb is linked to two key processes that fr...

Novel antiviral technology inhibits RSV infection in mice

...n the form of a nasal drop or spray. The treatment keeps the host's natural antiviral shield intact and attenuates virus reproduction, providing substantial protection from severe infections over days to weeks." Dr. Mohapatra and his team developed nose drops containing vectors capable of producing small f...

Timing is everything: First step in protein building revealed

... end stage of gene expression, and gene expression keeps us alive and causes disease," says Lorsch. "If we can better understand how the ribosome works, perhaps we can harness it to help us fix disease." Already, scientists knew that without eIF1, the ribosome can start reading the gene's RNA instructions ...

Researchers at UT Southwestern discover new function for old enzyme

... To determine the region of aconitase that keeps mitochondrial DNA intact, Dr. Butow's group made mutations in parts of the enzyme that are important for its catalytic activity. In spite of these mutations, aconitase still functions in the maintenance of mitochondrial DNA. The researchers concluded...

Physicians recommend screening for toxoplasmosis for all pregnant women, newborns

..., but few have symptoms. The immune system usually keeps the parasite from causing illness. However, pregnant women should be cautious. If the infection is acquired for the first time while a woman is pregnant, it can cause serious problems. Infection of the fetus may cause severe eye and brain damage, and...

First love ruins him for all others

...y benefit to males appears to be that wing feeding keeps the female occupied during the time it takes the male to transfer the sperm."...

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(Date:7/24/2014)... is available in German . ... 300 million asthma sufferers worldwide, a further 600 million ... of the global population contending with allergic rhinitis (allergic ... also affect other organs and parts of the body ... intestine (in the form of inflammatory bowel diseases such ...
(Date:7/24/2014)... is available in German . ... recognize and respond to threats to health, and to ... understanding of the mechanism underlying immunologic memory, however, has ... converged to support the hypothesis that the persistence of ... with stem-cell-like potential. Until now, there was no conclusive ...
(Date:7/23/2014)... of identical twins has found that early reading skill ... the journal Child Development , was conducted by ... London. , "Since reading is an ability that can ... according to Stuart J. Ritchie, research fellow in psychology ... "Early remediation of reading problems might aid not only ...
Breaking Biology News(10 mins):New drugs to combat asthma and the like 2New drugs to combat asthma and the like 3Experiments prove 'stemness' of individual immune memory cells 2Experiments prove 'stemness' of individual immune memory cells 3Stronger early reading skills predict higher intelligence later 2
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