Tag: "became" at biology news

Salk scientists hammer out a pathway that promotes muscle cell survival in mice

...doctoral researcher Rebecca Berdeaux, Ph.D., first became interested in the enzyme when they observed that mice engineered to have a defect in a molecular switch, called cAMP responsive element binding protein (CREB), had hunched backs, muscle wasting, and other signs of unhealthy muscles. Although CREB had...

The brain is more adept at using the nose than previously realized

...used more irregular activity, and the oscillations became more regular when the smells were similar. Other researchers had shown that activated regions of the olfactory bulb overlap when smells are similar but are distinct when the smells are different. Beshel and Kay speculate that the oscillations help t...

Breast cancer milieu -- Progression, tamoxifen sensitivity, and DNA reversion

...rived from ER-negative tumors, breast cancer cells became less sensitive to tamoxifen. Further, these cells were also less sensitive to inhibitors of cell growth. Conversely, tamoxifen resistance could not be restored in tamoxifen-resistant, malignant breast cancer cells by incubating with fibroblasts from...

Researcher finds negative effects of colonization on slash-and-burn farming method in western Borneo

...uit trees. In the process, Wadley argues, the Iban became unsettled and demoralized, which caused them to increase their use of swidden practices on old growth forest and take subsistence shortcuts. Wadley said that slashing and burning old growth forests was safer and less time consuming for the Iban bec...

'Junk' DNA now looks like powerful regulator, Stanford researcher finds

...ouldn't have been possible without two things that became available over the past few years: the complete gene sequence of many vertebrate species, and fast computers running sophisticated new genetic analysis software. "Right now it's like being a kid in a candy warehouse," Bejerano said. Computer-savvy bi...

Antioxidant found in many foods and red wine is potent and selective killer of leukemia cells

...tion of C-3-R, virtually all of the leukemia cells became apoptotic and died. C-3-R also induced apoptosis in other human leukemia and lymphoma cell lines. When the investigators studied the mechanism of cell death in the leukemia cells, they found that C-3-R induced the accumulation of peroxides, a high...

Mystery of fossilized trees is solved

...e. This caused temperatures to drop and the planet became very similar to its present-day condition." Dr Berry worked with colleagues from Binghampton University, New York and from New York State Museum, which discovered the two trunk fossils. Their findings are published in the April 19 edition of the sc...

Scientists unlock secret of what makes plants flower

...gh in plant science. Since the 1930s when it first became clear that something was communicating the perception of changes in day length in leaves to the shoot apex, and causing flowering, scientists have been trying to work out exactly how this mechanism works. "Over the past couple of years several lab...

Progress against sarcoma

...was expressed or activated in myoblasts, the cells became cancerous 100 percent of the time. Myoblasts are not stem cells, which can become any kind of tissue, but are precursor cells that are committed to becoming muscle cells. Whats surprising here is that the fusion gene itself is sufficient to start ...

Researchers identify gene that plays key role in size of dogs

...ll dog" version (or allele) of IGF1. This mutation became fixed in small dog breeds through human breeding of the dogs. The results suggest that IGF1 plays a similar role in differentiating small from large dogs within breeds, small from large breeds within dogs, and likely size differences among species. C...

AACR establishes new lecture in honor of Princess Takamatsu

...d him Distinguished Professor. Princess Takamatsu became involved in cancer research following the death of her mother from bowel cancer in 1933. In 1968, she established the Princess Takamatsu Cancer Research Fund, a trust that allocates public monies to innovative cancer research. Through her various act...

In young mice, gregariousness seems to reside in the genes

...influence on social behavior ebbed and the animals became much more responsive to social cues such as gender, according to Lahvis. "As they get older, they take on the [behavioral] characteristics associated with gender," Lahvis explains. "The initial genetic predisposition gets masked by reproductive mat...

First impressions: Computer model behaves like humans on visual categorization task

... preliminary model simulations predicted, the task became harder as the relative size of the animal decreased and the amount of clutter (the background scene) increased. Importantly, the results showed no significant difference between humans and the model. Both had a similar pattern of performance, with ...

Biologists call for better choice of model organisms in 'evo-devo'

...Reviews Genetics. The subject of evo-devo, which became established almost a decade ago, is particularly d...mitive and representative. "Equally, those that became separate species further down the evolutionary line are not necessarily increasingly different from ...

National Academies host spring season of Distinctive Voices programs in Irvine, Calif.

...ed by 30 years, smallpox was eradicated, and polio became nearly nonexistent. Still, 2.5 billion of the world's people have not benefited from such remarkable medical advances; their lives remain short and scarred by communicable diseases. Nassim Assefi, an internist specializing in women's health and glo...

Think herbal supplements are safe? Think again, book by Saint Louis University doctor says

...e life-threatening effects." Dr. Grossberg first became interested in the topic after a routine six-month visit with a patient he had successfully treated for depression. He had been seeing the patient for four or five years, and asked if the man was dealing with any new health problems. The patient men...

New evidence of 'human' culture among primates

...Dr Moura as a potential predator, but as the group became used to his presence in the area the stone-banging decreased. Furthermore, in a large minority of cases, adults and juvenile monkeys were seen banging the stones together without paying him any attention at all - suggesting that the younger monkeys w...

Notorious cancer gene may work by destroying messenger

... Src (pronounced sark). Discovered in 1977, Src became the first oncogene mutated genes that help make cells cancerous. Oncogenes are altered forms of genes that control cell growth and cell division. These findings provide insight into how Src might contribute to cancer development. The study by ...

Gene hunters, patent prospectors leave indigenous communities in Pacific feeling besieged, betrayed

...Pacific's beautiful and remote Cook Islands nearly became the site for the world's first transplantation of pig cells into living humans (xenotransplantation) as a cure for diabetes in 2002. Pacific Islanders in general suffer from very high rates of Type-2 diabetes, and some researchers claimed transpla...

Paleontologists discover new mammal from Mesozoic Era

...ionary pathway via which these precursor jaw bones became separated from the jaw and moved into the middle ear of modern mammals. "Now we have a definitive piece of evidence, in a beautifully preserved fossil split on two rock slabs," said Luo. "Yanoconodon clearly shows an intermediate condition in the e...

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(Date:4/22/2014)... in two Minnesota cities demonstrate how communities can ... a ten year program in New England and ... to local conditions. , "Our goal is to ... said program co-leader Latham Stack, of Syntectic International, ... worsened. We help communities move beyond feeling paralyzed ...
(Date:4/21/2014)... is commonly used as a farm soil fertilizer, contains ... from the cows, gut bacteria. The findings, reported in ... American Society for Microbiology, hints that cow manure is ... genes that transfer to bacteria in the soils where ... (AR) genes have already been identified, but the vast ...
(Date:4/21/2014)... are on the decline in the Galpagos. , A new ... indicates numbers of the iconic birds, known for their ... attract mates, have fallen more than 50 percent in less ... is probably due to an unexplained disappearance of sardines from ... at Wake Forest University and the study,s principal investigator. This ...
Breaking Biology News(10 mins):Minnesota projects offer hope and practical help to communities facing more extreme storms 2Cow manure harbors diverse new antibiotic resistance genes 2Cow manure harbors diverse new antibiotic resistance genes 3Lack of breeding threatens blue-footed boobies' survival 2Lack of breeding threatens blue-footed boobies' survival 3
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