Tag: "demonstrates" at biology news

Microbes at work cleaning up the environment

...es. The answer was yes in both cases. “This demonstrates an extracellular biomineralization mechanism that is unexpected because it involves the bacteria excreting proteins for nanoparticle aggregation away from the cells,” said Peter Weber, one of the LLNL authors of the paper appearing in the June 15 edi...

Modified mushrooms may yield human drugs

...en genetically altered for resistance. The test demonstrates that if a second gene, insulin for example, were to be patched in the plasmid, that gene would be expressed as well. "There is a high probability that if the mushroom cell has the hygromycin resistance gene, it will also have the partner gene," D...

Genome of Clostridium botulinum reveals the background to world's deadliest toxin

... in clostridia." This remarkable, stable genome demonstrates the wide range of strategies used by bacteria to enhance their chances of survival. For the Clostridia, these range from the approach used by Cdiff — long-term interaction with hosts, which involves evading the immune system and countering antibiotic...

Ants show us how to make super-highways

... mates home," added Powell. "Broadly, our research demonstrates that a simple but highly specialised behaviour performed by a minority of ant workers can improve the performance of the majority, resulting in a clear benefit for the society as a whole." Their experiments showed that individuals size-match to th...

Researchers use MRI to predict recovery after spinal cord injury

... June issue of the journal Radiology. "Our study demonstrates that the possibility and extent of neurological recovery after SCI can be predicted within 48 hours after injury by rigorous assessment of MR images," said co-author Michael G. Fehlings, M.D., Ph.D., F.R.C.S.C., professor of neurosurgery at the Unive...

Nitric oxide: Key to cardiovascular and pulmonary function and drug effectiveness

...nal Cell. "This work is significant in that it demonstrates how two of the most pervasive physiological systems -- G-protein coupled receptors and nitric oxide -- come together to influence one another," said Erin Whalen, Ph.D., who spent six years focusing on the link between the two biological systems. Whal...

Gene mutation linked to cognition is found only in humans

...d 14 million years ago respectively), this finding demonstrates that type II is a human-specific form that originated relatively recently, less than 5 million years ago. Gene sequencing revealed a mutation specific to humans that triggers a change in the splicing pattern of the neuropsin gene, creating a new s...

DNA repair proteins monitored at double-strand break

... Elijahu Berkovich, Ph.D., in Kastan’s laboratory, demonstrates how key repair proteins, such as ATM, NBS1, XRCC4 and gamma-H2AX, interact to coordinate repair of double-strand breaks. For example, the investigators showed that NBS1 recruits ATM to the break; and that ATM and NBS1 cooperate to disrupt nucleosomes...

Confirmed -- deforestation plays critical climate change role

...en suggested," Dr Canadell says. "However, it also demonstrates the need to avoid higher levels of global warming, which could slow the ability of forests to accumulate carbon." He says that while tropical deforestation will continue, slowing the amount of clearing will make significant impacts. "If by 2050 w...

Fused nasal bones helped tyrannosaurids dismember prey

...s a University of Alberta researcher whose finding demonstrates how a fused nasal bone helped turn the animal into a "zoological superweapon." "Fused, arch-like nasal bones are a unique feature of tyrannosaurids," said Dr. Eric Snively, a post doctoral research fellow at the University of Alberta. "This adaptat...

Scientists identify pancreatic cancer stem cells

...f those concepts, the researchers said. "Our study demonstrates that the very small subset of cells in a human pancreatic tumor that cause the cancer to grow and propagate have stem cell-like features," Simeone said. To look for cancer stem cells in pancreatic cancer, the research team implanted cancerous tis...

Male-killing bacteria makes female butterflies more promiscuous

...ignificant for the scientific community because it demonstrates how a species' mating system can be determined by the frequency of a parasite....

Imaging pinpoints brain regions that 'see the future'

...table for two reasons. First, the study clearly demonstrates that the neural network underlying future thought is not isolated in the brain's frontal cortex, as some have speculated. Although the frontal lobes play a well-documented role in carrying out future-oriented executive operations, such as anticipatio...

Type of stem cell found to reside in transplanted lungs

...f stem cells from the lungs of transplant patients demonstrates for the first time that these progenitor cells reside in adult organs and are not derived from bone marrow, which leads to the possibility that the cells may be able to help with the rejection of donated organs and with various kinds of lung disease....

New recommendations against a major opportunistic infection -- cryptococcosis

...tients infected (HIV+) or not (HIV-) by HIV. It demonstrates that the disease is more severe in men than women,...cryptococcosis is the most serious. The study also demonstrates that between the two serotypes of C. neoformans present in France (A and D), serotype A is associate...

ESA launches new project to protect biodiversity

...fer to humankind," the UNCBD's Höft said. "It also demonstrates the responsible role of the private sector in offering tools and services for the benefit of the global community." ...

Application of Genomatix in silico methods reveals novel cancer associated genes

...The Beth Israel Deaconess Medical Center in Boston demonstrates a straightforward strategy from computer analysis to experimental verification.", says Klaus May, Chief Business Officer at Genomatix. He continues:" Two years ago we introduced our own concepts of an annotation and biology driven microarray analysis...

New cigarette designs don't offer lower predicted cancer risks

...that most smokers puff on every day. The report demonstrates that science does not adequately understand the sources of the cancer effects of smoke from conventional cigarettes. As a result, even if some of the known toxins –such as formaldehyde, arsenic, and cadmium ?are removed from cigarette smoke by the ne...

Lead with a poisonous electron shield

...he different behavior of lead in these two enzymes demonstrates that it can enter into complexes in which the metal–ligand bonds can either point in all directions, or into only one hemisphere, while the other hemisphere is filled by the free electron pair. This observation may help in the design of future lead-s...

New dopamine brain target discovered

...SA (Rashid et al., 2007), this important discovery demonstrates the existence of a Gq/11-coupled signalling unit that triggers a calcium signal, which is turned on by stimulating D1 and D2 dopamine receptors. Unlike other dopamine receptors, this novel unit will only create brain signals when both receptors are ...

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