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In nature, proteins sweep up nanoparticles

Here’s a pollution-control tip from nature: Deep inside a flooded mine in Wisconsin, scientists from several institutions including the U.S. Department of Energy’s Lawrence Berkeley National Laboratory...

University of Pittsburgh School of Medicine researchers develop 'off-the-shelf' vascular grafts

...stigators have engineered artificial blood vessels from muscle-derived stem cells (MDSCs) and a biodegrada...els for vascular grafts. The saphenous vein taken from a patient’s leg continues to be the most commonly used graft for coronary artery bypass grafting eve...

Cancer stem cells similar to normal stem cells can thwart anti-cancer agents

...t stem cells and their progeny in samples obtained from normal lung and lung cancer tissue samples. The researchers identified a very small, rare set of resting cancer stem cells in the lung cancer samples that looked and behaved much like normal adult lung tissue stem cells. Both the cancer and normal st...

Marine phytoplankton changes form to protect itself from different predators

... or small particles. “Based on chemical signals from attacked neighbors, Phaeocystis globosa enhances c...lony formation in the presence of chemical signals from copepods and remains as small, solitary cells like these that are only a few micrometers in diameter...

Warning from Asian bees

...y may have flown. Within a one kilometre radius from the first colony, disturbed in the mast of a yacht...so most of the benefits of honeybees actually come from pollinations. “About 90 fruit and vegetable crops, including melons, pumpkins, and even cotton ar...

Staphylococcus aureus hides out in cells

...lls for up to two weeks. A team of 12 researchers from University Hospital of Geneva, Switzerland and the...ber of the research team. “S. aureus then benefits from natural or programmed cell death to re-emerge and trigger another episode of infection, leading to c...

Research finds that circadian rhythms dominate all life functions

New research from Colorado State University shows that the function ...y circadian rhythms, and the timing of the rhythms from each group of genes that are synchronized is important." Ptitsyn also discovered alternative short...

Potent possibilities for parasite attack

...nted Dr Matt Berriman, senior author on the paper, from the Wellcome Trust Sanger Institute. The resear... of L. braziliensis and L. infantum, but is absent from the human genome. The parasite genes are thought to have been acquired from bacterial species that h...

Runners -- Let thirst be your guide

...o it again. A number of marathon runners have died from EAH, including one at this year’s London Marathon ...hat 13 percent of Boston marathon runners suffered from EAH, though most cases are mild enough so that they are not noticed by the athletes themselves. “...

Gene responsible for common hearing loss identified for first time

...f Human Genetics in Nice, France. Ms Melissa Thys, from the Department of Medical Genetics, University of ...G, to study a large patient and control population from Belgium and The Netherlands. They found significant results for an amino acid changing SNP inTGBF1, ...

The kapok connection -- Study explains rainforest similarities

...nd or ocean currents explains how the trees spread from South America to Africa. He plans to continue inve...tation for plywood," Dick said. "It might be saved from widespread extinction by continuing to invade new land areas through oceanic dispersal."...

Mutating the entire genome

...enetic blueprint, yet diseases can result not only from mutant genes, but from mutations of other DNA that controls genes. University of Utah researchers report in the journal Nat...

Clot-dissolving agent may be beneficial in treatment of severe frostbite

...s were compared with 25 frostbite patients treated from 1995 to 2006 who did not receive tPA, plus one who received tPA more than 24 hours after injury. Among the six patients who received tPA within 24 hours of injury, six of 59 (10 percent) affected fingers or toes were amputated, compared with 97 of...

Potato wart eyed as risk to potato production

...h or to plant products. Although direct losses from potato wart may be insignificant when first detected, indirect economic losses resulting from zero-tolerance regulations for potato wart can be devastating to growers. Indirect economic losses b...

UCF nanoparticle offers promise for treating glaucoma

...f Physical Chemistry C. Seal and his colleagues from North Dakota State University note in the article that while barely 1-3 percent of existing glaucoma medicines penetrate into the eye, earlier experiments with nanoparticles have shown not only high penetration rates but also little patient discomfor...

Researchers demonstrate way to control tree height

...t after several years of growth may range anywhere from 50 feet tall to a few inches. This is a “proof of...ure height of 150 feet or more, that were anywhere from about 15 feet to a few inches tall after two years of growth. The smallest of them could be difficul...

Blood-brain barrier breached by new therapeutic strategy

... prevents systemically delivered therapeutic drugs from reaching the brain. Grantees of the National Insti...lth, have now shown that a short protein (peptide) from the rabies virus can carry a strip of therapeutic material into the brain via intravenous administra...

Weizmann Institute scientists develop a general 'control switch' for protein activity

...e drug is no longer applied, or when it is removed from the system, the protein returns to its natural activity level. As reported recently in the journal Nature Methods, the first stage of the method consists of preparing a set of genetically engineered proteins (called a “library” in scientific langu...

UI anthropologist, colleagues discover remains of earliest giant panda

...s colleagues report the first discovery of a skull from a "pygmy-sized" giant panda -- the earliest-known ...an three million years as a separate lineage apart from other bears and was adapted to eating bamboo very early in its development. “Pandas are very uniq...

Researchers discover 'acquired' DNA key to certain bacterial infection

...ational Academy of Sciences. Other co-authors were from the University of Nebraska. The key to the bact...nd” of genetic material acquired through evolution from another bacterium, according to Luiz E. Bermudez, a professor of biomedical sciences in OSU’s Colleg...

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