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Tag: "try" at biology news

Drug resistance may travel same path as quorum sensing

...n it does, it increases the number of the pumps to try to send out the molecules. The doctor is trying to kill the bacterial cells with drugs, but the cells just make more pumps to communicate better. The effect is that they get rid of the drug," said Zechiedrich. Instead of bacterial pumps sending out ...

Dogs keep dying: Many owners unaware of toxic dog food

...s, Center and her staff worked around-the-clock to try to save the 17 poisoned dogs admitted to Cornell's Hospital for Animals. "I've been working 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...

Scientist warns of threat to last stronghold of endangered turtle

... and the USA (Duke University, SEATURTLE.org ) to try to solve the mystery of where the turtles' spend their time. ...

Molecular force field helps cancer cells defend against attack

... take our patients, we look at their tumors and we try to find clues to why their tumors grow, why their tumors spread, and we look at the various genes and proteins that make their tumors what they are," Cance said. "So from the patient's standpoint, the more that we can characterize their tumor and und...

UF scientists test improved gene therapy method for hereditary heart conditions

...ering new ZIP codes onto these vectors so they can try to control where they go," he said. "Then they become more like a traditional drug that has these properties and only these properties. We're using templates out in Mother Nature as our blueprint. Once we learn these places where they work, then we c...

Carnegie Mellon researchers discover new cell properties

...derstand what causes the lamina to stiffen, we can try to reverse or stop the problem," Dahl said. "We think this stiffening mechanism happens over time with increased protein concentration, so we need to determine the tipping point that causes real problems." When people grow old, the walls of the cell...

What's shaped like a pear and has 2 genomes? Check the pond

...ell touches with its hairlike projections, it will try to eat. If it does not bump into anything, the organism will seek out food with diverse sensory systems. It can protect itself from radiation and other threats and also can fight back against competitors and predators. In short, versatility is its ...

Viral genetic differences are possible key to HIV dementia

...ficiently." Or, he speculates, "we might actually try to design a drug to target these genetic variants that are responsible for the neurological damage." Pillai notes that the issue of HIV dementia is particularly important in regions outside North America and Europe where state-of-the-art antiretrov...

U of M researchers find immune-activating cells in intestines

...e future they will examine human tissue samples to try to identify a similar group in people. He added this population of cells may be important in many responses in the gastrointestinal system, which may be helpful in studying diseases and conditions such as ulcerative colitis, and Crohn's disease. T...

Protein clue to tailor-made antibiotics

...ogical warfare. Bacteria like E. coli frequently try to kill each other when resources are scarce using protein antibiotics called colicins, which are potent toxins. The research led by Professor Colin Kleanthous has discovered a critical element in the mode of action of a class of colicins (so-call...

Stanford doctors advance in bid to turn mice stem cells into blood vessels

...d it is that you can control various conditions to try to make these stem cells become the cells you want," Abilez said. "Our goal is to take the mouse stem cells and find the conditions that will make the stem cells into smooth muscle cells (myocytes), endothelial cells and fibroblasts, which make up th...

How ancient whales lost their legs, got sleek and conquered the oceans

... spotted dolphins and fossils of ancient whales to try to pinpoint the genetic changes that could have caused whales, dolphins and porpoises to lose their hind limbs. More than 50 million years ago the ancestors of whales and dolphins were four-footed land animals, not unlike large dogs. They became the...

Fish virus in Northeast spreading to other fish species

...restry Thousand Island Biological Field Station to try and get a clearer picture." The researchers are using a classical cell culture technique to perform the initial stage of the diagnostic testing. This technique can take two to four weeks to yield results. Cornell researchers are developing a molec...

How HIV 'exhausts' killer T cells

... it's not winning, the body makes an adjustment to try to co-exist," he said. "But we really do not know at this point." Walker emphasized that the study could not have been done without his group's ongoing collaboration with the University of KwaZulu Natal. "These are studies that simply could no...

CHAVI announces international search for genes affecting HIV response

...uals who control the infection on their own -- and try to produce a vaccine to mimic those responses. "W...ion to progress to AIDS. EuroCHAVI scientists will try to understand these differences by searching for an underlying genetic influence. Typically, scient...

A new tool against brain disease

... it's not winning, the body makes an adjustment to try to co-exist," he said. "But we really do not know at this point." Walker emphasized that the study could not have been done without his group's ongoing collaboration with the University of KwaZulu Natal. "These are studies that simply could no...

Cornell researchers find serious fish virus in Northeast for first time

...t," said Bowser. "The best management option is to try and contain the spread of it as best we can." Hot summer weather impacts how the virus spreads because warmer water can stress fish, thereby lowering their natural defenses and making them more vulnerable. ...

New strategy rapidly identifies cancer targets

...me needed to find a faulty gene by months. "If you try to sift through DNA, it takes almost a year," said Druker. "This technique takes a couple of months and further automation would make it even quicker." So quick, in fact, that Druker envisions the technique as a method to help choose which drug a ...

Invasive species alter habitat to their benefit

...ne in native species. Do you target the invader or try to minimize human interference?" Farrer began by surveying marshes in northern Michigan to find out what kinds of cattails were there. The state is home to three cattail species: the native broad-leaf cattail; the invasive narrow-leaf cattail, whic...

Tyrannosaur survivorship -- tough times for teens

...e of the site, Currie led an expedition in 1997 to try to find Brown's original quarry and returned annually with a group from the Royal Tyrrell Museum of Palaeontology to excavate the site. The number of Albertosaurus individuals is now known to be at least 22, which range from two to almost 10 metres i...

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