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Tag: "remarkable" at biology news

Undergraduate research shows leaderless honeybee organizing

...ts behavioral ecology. Like humans, honeybees are remarkable for living in large organized groups where highly ...hese highly organized societies that function with remarkable efficiency -- but they are organized so differently when you start digging into them,” Schneider s...

The mouflons of the Kerguelen archipelago

...ological Sciences at UQAM, recently published some remarkable research findings. Reconstructing the genetic history of a population of mouflons descended from a single pair, the researchers demonstrated that the animals’ genetic diversity increased over time, contrary to what the usual models predict. These res...

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

...Cdiff superbug — C. botulinum has a genome that is remarkable because it is so stable," commented Dr Mohammed Sebaihia, lead author on the paper from the Wellcome Trust Sanger Institute. "Unlike Cdiff, in which more than 10 per cent of genes have been acquired from other bacteria, there is almost no footprint o...

Scientists discover rare 'gene-for-gene' interaction that helps bacteria kill their host

...bes to prevent infections from occurring. "Some remarkable discoveries have been made using insects that have subsequently allowed important advances in understanding how the human immune system works." As part of their innate immune system, insects use an enzyme called phenoloxidase to produce reactive m...

Scientists identify prion's infectious secret

...ream behavior of the prion. "These findings are remarkable for two reasons," says Lindquist, who is also an investigator for Howard Hughes Medical Institute. "For one thing, this is the first time that these peptide arrays have been used to study protein folding. We’ve taken this platform to a whole new leve...

Thymus transplants gives hope to babies with fatal immune disease

... immune systems rebuild," Markert said. "We have a remarkable team that takes care of these children in tightly controlled conditions during this important early period." Typically, children remain in the hospital for two to three months after transplantation as physicians work to keep infections at bay as t...

Proteasome activator enhances survival of Huntington's disease neuronal model cells

...lity in both HD model and patient cells. These remarkable results demonstrate for the first time that it is possible to intervene therapeutically in the proteolytic pathways and organelles that participate in the specific degradation of misfolded and abnormal proteins. ...

Need oxygen? Cells know how to spend and save

...ells unable to rid themselves of COX4-1. "It's remarkable that the one-celled yeast also swap COX subunits in response to hypoxia, but because they lack HIF-1, they accomplish the swap in a completely different way," says Semenza. "This suggests that adapting mitochondria to changes in oxygen levels may be ...

Female Antarctic seals give cold shoulder to local males

...ht to mate with passive females. So it's not only remarkable to uncover active female choice in such a system, but this also suggests that female choice may be more widespread in nature than we previously thought." Studies of other species have shown links between genetic variation and visual traits. The sc...

A genetic 'gang of 4' drives spread of breast cancer

... tumors into the circulation," said Massagué. "The remarkable thing was that while silencing these genes individually was effective, silencing the quartet nearly completely eliminated tumor growth and spread." Microscopic analysis of blood vessel structure in the tumors revealed that knocking down all four ge...

New sucker-footed bat discovered in Madagascar

...s, attached to its thumbs and hind feet. This is a remarkable find because the new bat belongs to a Family of bats endemic to Madagascar--and one that was previously considered to include only one rare species. The new species, Myzopoda schliemanni, occurs only in the dry western forests of Madagascar, while ...

Why doesn't the immune system attack the small intestine?

...endritic cells to stimulate an immune attack, it's remarkable that intestinal tissue is so rarely the target of an immune attack. Our findings demonstrate that the immune system has features that remain to be discovered." ...

Illuminating the dark side of plants

...he Handbook of Poisonous and Injurious Plants is a remarkable improvement to a great book. New graphics and formal structure increase its value for the lay person and the clinician." Handbook of Poisonous and Injurious Plants presents clear information on hundreds of plants. It is lavishly illustrated, ele...

FSU researchers determine a critical factor in workings of proteins

...ion rate. It provides convincing evidence that the remarkable simplification of the calculation of association rates between proteins, proposed by Zhou and coworkers, really works."...

Researchers find hepatitis A and hepatitis C attack same protein to block immune defenses

...With 30,000-plus proteins in the cell, it’s really remarkable that these two very different viruses have chosen to strike at the same one," said Dr. Stanley Lemon, director of UTMB’s Institute for Human Infections and Immunity and National Institutes of Health-funded Hepatitis C Research Center. Lemon is senior...

New synthetic self-assembling macromolecules mimic nature

...ds self-assemble and the aggregated structures are remarkable stable in saline solution, Turner said. "The early results of this study suggest that these charged polymers self-assemble by like-charge interactions similar to such natural polymers as DNA," said Turner. "The stable self-assembled structures cou...

Cancer researchers add spice to research against rare neuromuscular disease

...n gene that were treated with ASC-J9 experienced a remarkable improvement. They were more mobile than their untreated counterparts, walking more normally and dragging their legs less often. Their muscles appeared to work normally, and they lived 40 percent longer than the untreated mice. In addition, the mice t...

No sex for 40 million years? No problem

...tion pressures in different environments. "One remarkable example is of two species living in close proximity on the body of another animal, a water louse. One lives around its legs, the other on its chest, yet they have diverged in body size and jaw shape to occupy these distinct ecological niches. Our res...

Brain networks strengthened by closing ion channels

...symptoms following exposure to stress. "We find it remarkable to relate a genetic mutation in patients to the regulation by an ion channel of PFC neuronal networks," said Arnsten. ...

Recently discovered species gain protection

...at nests in North America. "The area is such a remarkable center of micro-endemism that scientists believe more species may be there waiting to be discovered," said Claude Gascon of Conservation International, who is co-chair of the IUCN/SSC Amphibian Specialist Group. "The new Arrierito Antioqueño Bird Re...

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