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Tag: "become" at biology news

The penalty of having a sister -- why sibling sex matters for male saiga antelopes

...ctive state of the population. Such monitoring has become vital since saiga have seen a dramatic decline in numbers of over 95% in recent years, making them one of the most critically endangered species on earth. Future research will investigate what role sibling sex plays for lifetime reproductive succ...

Brown cancer biologists identify major player in cell growth

...d when the biochemical brakes are put on and cells become inactive. Then the process is kick-started and cells move into the so-called S phase, when DNA is duplicated. This is a critical juncture. If genes are missing or broken, these alterations are passed on to the new cell -- and could result in disabili...

New details on how the immune system recognizes influenza

...nly a portion of the extensive database, which has become the largest single collection of such information ...hed and are now in the database, but critical gaps become apparent when one looks for human antibody targets." Plans for the future include adding data on e...

OHSU surgeon implants donated tissue allografts

...Restoration Foundation (JRF), allowing Portland to become one of 16 areas across the country to receive priority allocation of fresh cartilage allografts for transplantation. "Live or fresh tissue transplants are difficult to obtain and complicated to prepare and coordinate. This new cooperation will al...

'Marathon mice' elucidate little-known muscle type

...-1â in the skeletal muscles of mice caused them to become crowded with IIX muscle fibers, which are normally much less prevalent. "One reason why less is known about IIX fibers is that no one muscle group is packed with them," Spiegelman said. "For the first time, we have a mouse model very enriched in I...

Bypassing eggs, flu vaccine grown in insect cells shows promise

...han a teaspoonful of material that will ultimately become part of a vaccine. It’s typically a six-month process to produce enough flu vaccine to protect the public. Taking eggs out of the process would likely slice one or two months off the production process, Treanor said. In case of a bird-flu pandemic...

Farmed salmon could become an invasive species in forest streams

...ummeted and, there is concern that farmed fish may become the next invasive species. "Farmed fish escaping from marine net pens might become an invasive species in British Columbia, Washington or Alaska," says research fish biologist Peter B...

Prehistoric origins of stomach ulcers uncovered

... major land routes out of Africa human populations become genetically isolated - the further from Eastern Africa a population is the more different genetically it is compared to other human populations. Other research has shown gradual differences in European populations, presumed to be the result of Neolit...

Nanotechnology meets biology and DNA finds its groove

... genomes - for species or individuals - could soon become more accessible to science. Scientists, Schwartz explains, already know how to take DNA and stiffen it by removing salts from its chemical makeup. But confining the molecule and presenting it for analysis is laborious, engaging armies of lab techs...

When your brain talks, your muscles don't always listen

...When he entered college years ago, his goal was to become an elite track-and-field athlete. While he competed well, he realized that his dreams lay elsewhere, and his attention focused full force on academics. At the University of Connecticut, a class on the biology of the brain introduced him to the ner...

Synthetic peptide targets latent papilloma virus infections

... hitch a ride on the cells' chromosomes but do not become part of the chromosomes, as do other known pathogens, such as HIV in blood cells. The virus can transform infected cells and make them proliferate into nipple-like warts. Unlike unsightly warts on the skin, tongue or penis, warts in the cervix are ...

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

...to the metastasis process. "As the tumors grow and become enriched with LMS-positive cells, because the genes give them an advantage, they reach a point where the tumor becomes richly vascularized," said Massagué. "Then, they can massively execute the advantage the LMS genes provide them to metastasize to t...

Africa's first large-scale HIV vaccine study launches

...nfection, results in lower HIV levels in those who become infected after vaccination or both. In addition, i...wn that men who are circumcised are less likely to become HIV infected when they have sexual relations with women. As a result, access to medical circumcision...

Rapid oral HIV test shows great promise according to MUHC-led research

...d rapid alternative to blood-based HIV testing may become the new standard for field testing according to a new MUHC study. The study shows that the oral fluid-based OraQuick HIV1/2 test is 100 per cent accurate and patients?preferred choice. Senior and lead author Dr. Nitika Pai, a postdoctoral fellow a...

Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps

...oundation laid by the Human Genome Project, it has become clear that comparing our genome with the genomes of other organisms is crucial to identifying what makes the human genome unique." The rhesus, because of its response to the simian immunodeficiency virus (SIV), is widely recognized as the best an...

Genetic pathways to curable and incurable forms of pancreatic cancer identified

... which can induce cancer cells to change shape and become more mobile and invasive. It turns out that the cystic pancreatic cancer cells are resistant to these effects of TGFb and these types of cancers are also less likely to invade surrounding tissues and to metastasize, or spread, to other organs. These ...

New technologies coming too fast for Indian farmers

...market. Seed firms frequently take seeds that have become less popular, rename them and sell them with new marketing campaigns, Stone says. "Many different brands are actually the same seed," he says. "Farmers can't recognize what they are getting. As a result, the farmers can't properly evaluate seeds. I...

Antifungal drug kills TB bug

...w resistant strains develop and these regions have become huge breeding grounds for these ‘super strains?" Funded by the EU’s NM4TB (new medicines for tuberculosis) project, the Manchester team set about trying to find alternative drugs that could be used to treat these multi-drug resistant varieties of ...

Molecular differences between early and advanced melanomas could provide new drug targets

...iety. But when melanomas grow downward, the tumors become highly resistant to chemotherapy and radiation and the five-year survival rate falls rapidly, to 64 percent if the disease has reached the lymph nodes and 16 percent if it has spread to other organs. The discovery of Akt's significant role in the ...

Scientists discover how body fights to control spread of cancer

... shield, forcing large areas of the cancer cell to become exposed. The exposed areas of the cell allow the cancer to attach to the blood vessel wall. The cancer cells then eventually penetrate the blood wall to form tumours at secondary sites. "The attachment of cancer cells to the blood vessel wall is o...

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