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Tag: "directly" at biology news

Chernobyl: The true scale of the accident

...f mid-2005, however, fewer than 50 deaths had been directly attributed to radiation from the disaster, almost all being highly exposed rescue workers, many who died within months of the accident but others who died as late as 2004. The new numbers are presented in a landmark digest report, "Chernobyl's Legac...

Zebrafish may hold key to improved cancer research

... fish embryos are literally transparent and can be directly observed at early developmental stages better than almost any other animal species. They had been used for years in studying everything from the immune system to cardiovascular disease and skeletal development. In the mid-1990s, OSU researchers beg...

Grabbing addiction by the tail

...ats' brains, the researchers delivered the peptide directly to the nucleus accumbens and to another area of the brain involved in reward and motivation, the ventral tegmental area. The peptide reduced the rats' drug-seeking behavior only when injected into the nucleus accumbens, evidence that the structure is...

Brains response to visual stimuli helps us to focus on what we should see, rather than all there is to see

...are not the same, and they often don't communicate directly with each other. In February, they reported in Nat...itatory and inhibitory neurons. These neurons work directly with each other to shape responses to stimuli. This "go-no" kind of interaction is necessary, Callaw...

UT Southwestern researchers unravel control of growing blood vessels

...future treatments. For instance, a treatment might directly control the level of Foxo4, or it may involve one of the signals that control Foxo4. "Now that we understand the 'nuts and bolts' of this problem, we can use that information to find ways of disrupting the disease process," Dr. Olson said. "We have ...

Extinct giant deer's descendant found in UK

...extinct for over 8000 years and show that they are directly related to a living deer ?more importantly we've found its closest living descendant." ...

Study Holds Promise For New Way To Fight HIV

...extinct for over 8000 years and show that they are directly related to a living deer ?more importantly we've found its closest living descendant." ...

Give thanks for the cranberry, say dental researchers

...he natural acidity of the substance may contribute directly to tooth decay. Instead of advocating mass consumption of cranberry juice, Koo hopes to isolate the compounds within the juice that pack an anti-cavity punch. The substances could then be added to toothpaste or mouth rinse directly. He is working cl...

Wright bros. upstaged! Dinos invented biplanes

...ld not have extended its rear limbs to form a wing directly behind the front wing. More likely, and more aerod...-up theory has a theropod struggling toward flight directly from the ground, against gravity, without any gliding stage. Such long feathers around the feet woul...

MicroRNA gene that regulates lifespan found by Yale scientists

...-studied, C. elegans worm and found genes that are directly involved in determination of lifespan. Humans have genes that are nearly identical." A microRNA and the developmental-timing gene it controls, lin-4 and lin-14, affect patterns of cellular development at very specific stages. Slack's group found tha...

Getting an evolutionary handle on life after reproduction

... selectively on those aspects of life history that directly affect fitness. They expand on their ongoing investigations of the life history of guppies confronting different predatory threats in Trinidad. Individuals facing different mortality threats should evolve different adaptations in their life historie...

Plant gene related to cancer treatment may foster new oncology drugs

... the commonly used experimental plant Arabidopsis, directly transports auxin out of plant cells and also out of yeast and mammalian cells. In the Plant Cell study, they found that other PGP proteins move auxin into cells. "Auxin molecules essentially are pulled through the cell membrane by PGP transport prot...

NIAID researchers show how promising TB drug works

...s called FGD1 and F420, neither of which interacts directly with the drug. Next, the investigators screened f...ust be due to a mutation in the M. tb protein that directly interacts with PA-824. But determining exactly which of M. tb's thousands of proteins was changed i...

Gene therapy for muscular dystrophy fixes frail muscle cells in animal model, Stanford study finds

...: one is that in her method the gene gets inserted directly into the cell's own DNA, which is why the correction is permanent. In some other methods the gene stays outside the DNA and slowly breaks down. The second advantage is that her method doesn't rely on a virus to disperse the DNA and therefore avoids s...

Magnetic probe successfully tracks implanted cells in cancer patients

... the cells where they need to be is to inject them directly into the lymph nodes that drain the area containing a tumor. Currently, doctors use ultrasound to guide the needle, and dendritic cells carrying a radioactive tag are sometimes used to try to double-check the cells' final resting place. However, in ...

Polymer gel can block toxic leakage problem in gene therapy

...into the blood stream but instead must be injected directly into tumors themselves. However, direct intratumo..., the only choice is to inject the viral particles directly into the tumor. But when you do that, we have demonstrated that dissemination elsewhere is inevitabl...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...d Hecate. In the other, the nanoparticle was bound directly to LHRH-Hecate. They first tested the two ver..., this technology can also deliver contrast agents directly to the tumor to improve detection, as well as tumor resolution and definition. ...

Deep treasure to be found in Oculina Bank

...rouper as well as rock shrimp. The reefs' location directly under the Gulf Stream makes them a potentially important source of fish larvae for the entire southeast U.S. continental shelf. Harbor Branch Oceanographic Institution scientists first discovered the deepwater Oculina reefs with the Johnson-Sea-Lin...

Role of microRNA identified in thyroid cancer

...c gene mutations have yet been identified that are directly linked to the predisposition of this type of cancer. That led researchers in The Ohio State University Comprehensive Cancer Center to conclude that while genetic mutations may indeed cause some people to be more likely to develop PTC than others, th...

Katrina floodwaters not as toxic to humans as previously thought, study says

...waters, is good news for those who've been exposed directly to the floodwaters, the scientists say. But the LSU researchers caution that the same floodwaters that were pumped back into Lake Pontchartrain contain high levels of some toxic metals, especially copper and zinc, and could pose a long-term danger t...

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