thought 2 8

Tag: "thought" at biology news

MRSA toxin acquitted: Study clears suspected key to severe bacterial illness

Researchers who thought they had identified the bacterial perpetrator of t...stitutes of Health, have exonerated a toxin widely thought to be the guilty party. Panton-Valentine leukocidin (PVL) is one of many toxins associated with S. ...

German researchers develop first non-invasive test to measure skin aging

...ucts could also become easier. "Some cosmetics are thought to change the content of collagen in the skin," Dr. Koehler said, "but until now, to measure that you had to cut out a piece of skin."...

Male contraception: One door opens, another closes

.... With safety testing already out of the way, they thought this male "Pill" could potentially be brought to market very quickly. Because of the growing public interest in male contraceptives, researcher Dr. John Amory at the University of Washington, Seattle was able to obtain funding to test the drug's e...

Lost in the labyrinth

...mpartment in the bone marrow, something so far not thought to occur. The study proves that beta-catenin plays a central role in determining whether blood cells form or not. On the other hand, an overactive Wingless pathway doesn't seem to damage cells that already exist. Thus beta-catenin seems to be a deci...

Vanishing beetle horns have surprise function

...ot a vestigial type of structure, which many of us thought was the case. Instead we have shown these horns actually serve an important function regardless of whether they are resorbed in the pupal stage or maintained into the adult." Because all the Onthophagus beetles the scientists examined form horns ...

Gene therapy inhibits epilepsy in animals

...n cells that characterizes a seizure. Seizures are thought to occur, at least in part, because of an imbalance between two types of neurotransmitters: the glutamate system, which stimulates neurons to fire, and the GABA system, which inhibits that brain activity. GABA's inhibitory role is considered partic...

Researchers link ocean organisms with increased cloud cover and potential climate change

...e on atmospheric particulate matter was previously thought to be important only for terrestrial plants, Nenes said. The researchers stumbled upon the phytoplankton-cloud connection quite accidentally. "While looking at the satellite pictures, I noticed that cloud properties over large phytoplankton bloom...

'Failed' experiment yields a biocontrol agent that doesn't trigger antibiotic resistance

...t over-replication. "We harnessed this plasmid," thought Filutowicz. "Now, how can we use it?" The answer came in 1999, when he filed a disclosure through the Wisconsin Alumni Research Foundation, which patents the discoveries of UW-Madison researchers and licenses technology to industry. Filutowicz belie...

Fishy cooperation

It is commonly thought that animals can be arranged along a ladder of int... but also modify tools in the lab, an ability once thought to define humans. And now come the fish. In an article published today in PLoS Biology, Redouan B...

Researchers identify a key regulator for skin stem cells

...at seen in bulge cells, where adult stem cells are thought to reside," she said. In particular, the researchers found that Tcf3 repressed members of a gene family called PPAR, which themselves produce key transcription factors that promote skin stem cells to differentiate into epidermal and sebaceous glan...

Selecting life: Scientists find new way to search for origin of life

...ed. In fact, prebiotic synthesis processes are now thought to have been so productive that the ancient Earth must have had far more different kinds of molecules than could have been used by early life. One of the biggest questions in origins research, therefore, is how just the right blend of critical biomol...

Reef warns of sea level rise

...obal warming leading to the end of the ice-ages is thought to be due to changes in the elliptical nature of the Earth's orbit combining with other factors, such as variations in its tilt or wobble. During the ice ages atmospheric CO2 was around 180 parts per million, compared to 280 parts per million during...

Archerfish tune their shots to universal properties of prey adhesion

...o the water's surface. These water shots were once thought to be all-or-none in quality, but researchers have now discovered new levels of sophistication in the archerfish's hunting strategy that shed light on how this impressive predatory behavior has evolved. The findings are reported by Thomas Schlegel, C...

Hopkins researchers discover how brain protein might control memory

...ells connect and "talk" to other nerve cells. It's thought that the stronger these connections are, the stronger the memory. Like the childhood game called Telephone, where one person taps her neighbor and whispers a message that is passed on in similar fashion to the next person in line, nerve cells conn...

Protein splicing upsets the DNA colinearity paradigm

... fact, colinearity of DNA and protein sequences is thought to be a fundamental feature of the universal genet...nslation from RNA to protein. "Until now it was thought that colinearity of DNA and protein sequences was only interrupted by RNA splicing," says LICR's Dr....

Study IDs protein that inhibits HIV from growing in cell cultures

... a strange story," Stapleton said. "Who would have thought a virus floating around in a lot of people does not make them sick but could significantly influence survival in people with HIV?" ...

New sunscreen ingredient to heal sunburn and help prevent skin cancer

...e severe cell damage. "Many forms of cancer are thought to be the result of reactions between free radical... days, before 10am and after 3pm. "UVA was once thought to have a minor effect on skin damage, but now it is considered to be a major contributor as it pene...

Ancient ape ruled out of man's ancestral line

Ancient remains, once thought to be a key link in the evolution of mankind, have.... Little Foot is of the genus Australopithecus, thought by some to be part of the ancestral line which led directly to man. But research by Dr Jo Walker and...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...ophiles everywhere ''For many years, we always thought of archaea as extremophiles-halophiles [salt-lovin...00 years ago, and ammonia oxidation was previously thought only to exist in the bacterial realm,'' Francis said. ''Nobody ever guessed that members of the Arch...

Artificial cornea offers better results for infants, some blind patients

...s for those patients. "In the past, people have thought that keratoprosthesis, or an artificial cornea, was only for patients who were in disastrous circumstances, who couldn't receive a cornea the traditional way," Aquavella said. "Now, because of improvements in materials and in surgical technique, this...

1 2 3 4 5 6 7 8 9 10