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Tag: "never" at biology news

Discovery may speed forest biotechnology

...s will respond to climate change. "Before this we never really knew what genes were involved in the initiation of tree flowering or the cessation of growth in the fall," said Steven Strauss, a professor of forest genetics at OSU. "At least in theory, it may now be possible to dramatically speed up tree br...

APS lecturer shows rare video of 'teacher-student' immune cell interactions in live animal

...ach T cells to respond to an infection. "This had never been observed in a live system before we obtained ... process from tissue culture studies, but this has never been observed before in vivo. That has largely been a black box," he said. His group has explored t...

Avian flu modeled on supercomputer, explores vaccine and isolation options for thwarting a pandemic

... infected people (33 percent in the present model) never develop clinical symptoms, although they are themselves infectious. In addition, the durations of the incubation and infectious periods can vary and are randomly chosen from distribution functions for each individual, involving more throws of the vi...

Inside rocks, implications for finding life on Mars

...old -- preserved in rocks, an achievement that has never been done before. If a future space mission to Mars brings rocks back to Earth, Schopf said the techniques he has used, called confocal laser scanning microscopy and Raman spectroscopy, could enable scientists to look at microscopic fossils inside t...

Stem cell transplants improve recovery in animal models for stroke, cerebral palsy

...a result, 95-97 percent of ischemic stroke victims never receive treatment with tPA. In the adult stroke model, MCG researchers found giving stem cells increased the number of injured cells that survived in the area just outside the area of greatest damage, also referred to as the ischemic core, by 5-20 ...

Ancient ants arose 140-168 million years ago

...t rarely has it been used to identify viruses, and never in complex environmental samples. Researchers at the Johns Hopkins Bloomberg School of Public Health recently demonstrated that proteomic mass spectrometry has the potential to be applied for this purpose. Using a two-step process, researchers succ...

Researchers use mass spectrometry to detect norovirus particles

...t rarely has it been used to identify viruses, and never in complex environmental samples. Researchers at the Johns Hopkins Bloomberg School of Public Health recently demonstrated that proteomic mass spectrometry has the potential to be applied for this purpose. Using a two-step process, researchers succ...

UCLA paper examines how one disease may prevent another

... room with the tuberculosis patient -- CF patients never get tuberculosis." Subsequent studies have confirmed this observation. ...

Genetically engineered mosquitoes show resistance to dengue fever virus

..., bound with dicer-2 and was chopped up. The virus never had the opportunity to replicate. As a result, they could "inoculate" mosquitoes with a form of the virus that would essentially be benign. Joining James on the study, funded by a 2001 grant from the National Institutes of Health, were researchers f...

Bone and cartilage growth to blame for heart valve disease

..., built up on the valves. Therefore, research has never focused on preventing the problem," says Dr. Rajamannan. "Currently the only option is to surgically repair or replace the damaged valves. Our findings open the door to the idea that medical therapies such as statins may be able to play a role in p...

Dogs keep dying: Many owners unaware of toxic dog food

... with liver disease in dogs for 30 years, and I've never seen such miserably ill dogs," said Center, noting that severely affected dogs suffer from intractable vomiting and internal bleeding. "Despite our understanding of this complex toxin, we have no direct antidote for this poisoning. This has been an i...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...ly studied bodies of water in the world, there has never been an undertaking to compile all species living ...been known on the eastern side of the Atlantic but never before seen in the Gulf of Maine region. "And," he said, "there are likely thousands more species t...

Scientists force viruses to evolve as better delivery vehicles for gene therapy

...ature, a very safe and efficient virus, but nature never evolved it to be a human therapeutic. So, in a sense, we have to re-evolve it for that purpose," he said. ...

Alzheimer's found to be mostly genetic

...mer's, 55 percent of the healthy twins either will never get the disease or will develop it later in life. In her previous research with twins, Gatz identified possible preventive or delaying factors, such as a low incidence of inflammatory disease or a work environment with a high degree of human interac...

Relationship of brain and skull more than just packaging

...ull were very high. Because normal infants almost never have MRIs and CT scans done at the same time, there are no controls available with which to compare the correlation of skull with brain measurements. Because even infants with craniosynostosis usually do not have both CT scans and MRIs done on the sa...

African amphibians make extreme parental sacrifice: The skin off their backs

...ides nutrition to her hatchlings via her skin, has never been seen before in amphibians, and may be unique ...retions from the mother's skin, but the scientists never observed such behavior. In the current study, the team collected 21 B. taitanus females along with ...

How can we protect patients with weakened immune systems from influenza?

... in the population. Furthermore, although it has never been known to have been developed as a bioterror weapon, the influenza virus may be relatively easy to manipulate for such purposes in a laboratory ?which is why the federal government is funding medical research to improve defenses against flu. Dr....

Intensive statin therapy may partially reverse plaque build-up in arteries

...aque in the coronary arteries. This finding has never before been observed in a study using statin drugs, the most commonly used cholesterol lowering treatment. Previous research had indicated that intensive statin therapy could prevent the progression of coronary atherosclerosis, or arterial plaque bui...

Less antibiotic use in food animals leads to less drug resistance in people, study shows

...oroquinolones for food animals in 1986, Norway has never licensed their use in food animals, and both countries have reported low trends--similar to Australia's--in fluoroquinolone-resistant Campylobacter infecting humans. The United States, in a recent effort to reduce American levels of Campylobacter dru...

Findings advance use of adult stem cells for replacement bone

...nce at Rice has been life-changing in ways I could never have imagined four years ago," Datta said. "I never anticipated I would be traveling to international conferences, for example, but from the very beginn...

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