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Tag: "start" at biology news

Ecosystem services and invasive species

...n the rainforests and coral reefs that we at least start to learn what is in our own backyards. Tennessee ...chest diversity of freshwater mussels. How can we start to protect these mussels, if we don't even know what's in our local rivers?," says Kesler. ...

Research links protein to breast-cancer migration

...reast-cancer treatments have been designed to kick start the anoikis process and kill these rogue cells. But the cancer cells are clever and learn how to avoid being destroyed, which means these treatments no longer work and patients often see their breast cancer return. Dr. Gilmore said: "Understanding m...

Leptin found to control appetite and limb development in frogs

...ate energy reserves---in the form of body fat - to start metamorphosis at an appropriate time. Finding leptin in the Xenopus genome was no small feat. The sequence for the "obese" gene that makes leptin is quite different between frogs and humans, so Denver's lab had some puzzles to solve to successfully ...

Smokers invite to test vaccine against nicotine addiction

...gned to help smokers quit and to limit the urge to start smoking again. Called NicVax, the investigational vaccine is being developed by Nabi Biopharmaceuticals to prevent and treat nicotine addiction and to help people quit smoking. Normally when a smoker inhales, nicotine is carried by the bloodstream t...

Producing bio-ethanol from agricultural waste a step closer

...uyper greatly improved this method: people can now start using agricultural waste products that contain sugar to produce bio-ethanol on an industrial scale. Delft University of Technology and the Kluyver Centre for Genomics of Industrial Fermentation are working together on this project with Royal Nedalco ...

'Smart' genetic therapy helps the body to heal itself

...normalised with valproate, they hope to be able to start a double-blind clinical trial in collaboration wit... funds, Dr. J. van Deutekom and her team will soon start a clinical trial, based on intramuscular injection of a single dose of an anti-sense drug that induc...

Study provides first look at the 'birth' of a retina cell

...die before cones. As the mouse eye develops, rods start out as stem cells, meaning they have not yet been assigned a function and could theoretically grow to become any kind of cell. Along the way, these cells change their gene expression and acquire competence to become a specific cell type. At a certain...

A rice future for Asia

...his week in Thailand and the Philippines marks the start of a major new effort to encourage young Asians to consider a future in rice. "It's a sad fact of life in modern Asia that many young people in the region don't think of rice as offering an exciting or promising career, so they focus on other indust...

New strategy developed to combat West Nile Virus

...l cases, the amplification of West Nile Virus will start with mosquitoes that carry the disease mingling with birds that are good carriers. "How fast and far it spreads from there depends on weather, terrain, vegetation, humidity, the types of birds that live in the region and even the number of housing d...

'Cellular antennae' on algae give clues to how human cells receive signals

... a cilium, it activates an enzyme that signals the start of a chain of chemical reactions. Although the cilia could move without IFT and bind to the molecules of the cilia of the opposite type, those cells were unable to respond to the signaling molecules. The failure to activate the chain of chemical rea...

Salk scientists untangle steroid hormone signaling in plants

...ant cell when brassinolide signals a plant cell to start growing. But a model is just a model. Often evidence in favor of a particular model is indirect and could support multiple models. Describing the components of the signaling cascade that relays brassinolide's message into a cell's nucleus, postdoct...

Ozone recovering, but unlikely to stabilize at pre-1980 levels, says study

...ant cell when brassinolide signals a plant cell to start growing. But a model is just a model. Often evidence in favor of a particular model is indirect and could support multiple models. Describing the components of the signaling cascade that relays brassinolide's message into a cell's nucleus, postdoct...

Learning the language of DNA

... in identifying promoters - the DNA regions at the start of genes that regulate their activity. "We have ...oint in time use the traditional model of a single start site, genes used in many tissues have a broad distribution of start sites. This new model may help...

New angiogenesis finding may help fight cancer growth

...ion concerns cancer treatment. Before solid tumors start to grow, they must create a new blood supply, and since adults need angiogenesis only during pregnancy and to heal wounds, blocking angiogenesis could be a promising way to halt tumor growth. Also in June, the FDA approved a compound that inhibits VE...

St. Jude test of bird flu vaccine proves successful

... a beat," Webby said. "We wouldn't have to wait to start developing a vaccine against it until after the original virus mutated." Webby's team showed that all mice and ferrets that received the DNA vaccine survived the challenge with the virulent H5N1 strain, while those that received a "blank" vaccine ...

Ghost protein leaves fresh tracks in the cell

...is. "We decided to throw out our assumptions and start fresh," he said. A laboratory fly was genetically engineered so that spectrin could no longer bind to ankyrin -- which, Dubreuil assumed, meant that spectrin should no longer attach to the membrane. "We thought that was going to kill the function...

Fire ant-attacking fly spreading rapidly in Texas

...Coastal Bend region of Texas. Phorids got a slow start after introduction due to drought in Texas from 1999-2001, says Dr. Larry Gilbert, director of the fire ant research program and professor of integrative biology, but they are now spreading three-to-10 miles per year from initial introduction sites. ...

Increase in carbon dioxide emissions accelerating

...average and its accumulated contribution since the start of the industrial revolution around 1800 is only five per cent of the global total. This compares to the US and Europe which have each contributed more than 25 per cent of accumulated global emissions. Dr Raupach says that the amount of emitted ca...

Trotting with emus to walk with dinosaurs

... "Too often people will look at fossil tracks and start making interpretations," he said. "I was just very uncomfortable with all the arm-waving. We needed to just spend some time figuring it out and looking at modern animals such as emus which prove to be great modern proxies for the extinct dinosaurs." ...

High dopamine transporter levels not correlated with ADHD

...ects." If ADHD subjects release less dopamine to start with, they may end up with lower levels of dopamine transporters as a result of down regulation ?that is, the body's attempt to compensate for lower dopamine levels by reducing the number of reuptake proteins. This would explain the positive correlat...

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