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Tag: "made" at biology news

Ethanol vehicles pose a significant risk to human health, study finds

... if every vehicle in the United States ran on fuel made primarily from ethanol instead of pure gasoline, t...ts of E85 will be the same, whether the ethanol is made from corn, switchgrass or other plant products, Jacobson noted. ''Today, there is a lot of investmen...

Scientists map key landmarks in human genome

... around a core, like ribbon around a spool that is made up of proteins called histones, and the nucleosome...began when his lab was studying the protein, MITF, made by one of these genes, which influences the expression of other genes. "We wanted to understand h...

Antivirals effectively curb influenza virus

...two with oseltamivir, permitting comparisons to be made between the two. The trials covered a total of 1,475 households. The majority of first household cases (53 percent to 70 percent) had influenza A (H3N2 or H1N1). The authors reviewed the effects of each antiviral on infectiousness and pathogenici...

Scientists discover a new risk factor for Alzheimer's

...ression of Alzheimer's disease. Amyloid-beta is made when cells improperly break down a protein called amyloid precursor protein (APP). Previous research had revealed that APP is subjected to a sequence of cellular events that either properly recycles APP or shunts it into cellular structures called en...

Rewarding fat rats

...icting the rats' diet to one meal per day not only made them lose weight, but also made reward sensations stronger. Conversely, increasing the level of leptin in the brain weakened the rew...

Stopping plants from getting sick

...ys Kronstad. "In fact, genomics and computers have made this a lot easier during the last five to 10 years. Before it would take a graduate student all of his or her research time to sequence and characterize one gene. Now that we have sequenced the genome of a smut fungus, I can look through thousands of...

Freeze! Scientists film proteins at work by freezing them at different states

...echnological limitations. Today, a French team has made a movie of an enzyme (a protein that catalyses chemical reactions) found in bacteria. “The achievement of this research is two-fold: on one side there is the technological success of filming an enzyme in action and on the other hand there are the res...

Surgeons with video game skill appear to perform better in simulated surgery skills course

...mes in the past for more than three hours per week made 37 percent fewer errors [in the Top Gun course], w...er played video games. Current video game players made 32 percent fewer errors, were 24 percent faster and scored 26 percent better overall than their non-...

Scientists unlock secret of what makes plants flower

...s. "Over the past couple of years several labs made exciting discoveries all pointing to the FT gene being central to controlling flowering time. Now that we have been able to track FT protein moving from its source in leaves to its destination in the shoot tip, we have a plausible explanation for how...

Flavanols in cocoa may offer benefits to the brain

A special cocoa made to retain naturally occurring compounds called fla...tudies suggest that consumption of a special cocoa made to be rich in flavanols, a naturally occurring nutrient abundant in fresh cocoa, may improve blood v...

UCLA scientists design masks to hide genetic mutations from cell

...tein production by the cell. Using new technology made by Gene Tools of Oregon, the researchers designed a custom mask to camouflage each abnormal splice. The technique prevents the cell from seeing the genetic defects and restores splicing to the correct location in the gene. IMPACT: The laborator...

Termites get the vibe on what tastes good

...mites can tell what sort of material their food is made of, without having to actually touch it. The findi...normal wooden blocks and specially designed blocks made of wood and other materials, the researchers found that the termites always preferred the blocks con...

Scientists unlock mystery of embryonic stem cell signaling pathway

...em cells on a layer of mouse fibroblasts has never made much sense to the scientists forced to do just that. “Stem cells that grow on feeders are contaminated with mouse glycoproteins markers,?Kahn says. “If you use them into humans, you’d potentially have a horrible immune response.? And so, in order t...

Long-lived deep-sea fishes imperiled by technology, overfishing

...te because of food. Technological advances have made targeting these fish easier, the panelists pointed out, because powerful ships can drag huge nets hundreds of feet below the surface. New refrigeration techniques, including "flash freezing," allow ships to range far out into the ocean for days at a ...

Antibody signal may redirect inflammation to fuel cancer

... to treat B cell lymphoma and auto-immune diseases made worse by inflammation, such as rheumatoid arthritis. "We already know that inflammation accelerates skin, cervical and colon cancer, and most likely also lung and breast cancer," she said. "If we confirm that what we've discovered in the mice stu...

Mother knows best: Plant knowledge key to childhood health in remote Amazon

... folk knowledge and provide access to products not made from local resources, but without providing adequate medical treatment substitutes," said Reyes-García. "In a situation where local medicinal knowledge is not adequately substituted by access to medical facilities, the consequences of this lost knowl...

Experimental vaccine given during pregnancy reduces stillbirths from common virus

...ccine differs from traditional vaccines, which are made from a whole killed virus. Called a vector vaccine, the experimental vaccine uses an altered virus to deliver one gene from the viral DNA to the animal’s cells. The cells then begin manufacturing the viral protein. Cells of the guinea pigs?immune ...

Prehistoric mystery organism verified as giant fungus

...sly sliced them into hundreds of thin sections and made thousands of images taken through microscopes to determine the organism’s identity. Now Boyce, Hotton and their colleagues have produced independent evidence that supports Hueber’s case. The team did so by analyzing two varieties—isotopes—of carbo...

Recently discovered species gain protection

...e locals for its call, reminiscent of the whistles made by horsemen herding cattle, this Endangered species hangs on in an area devastated by gold mining in the early 20th Century and subsequently by broad scale deforestation for pasturelands. Only 370 acres of the bird's habitat previously had been in an...

Natural polyester makes new sutures stronger, safer

...biopolymer suture cleared last month by the FDA is made of materials that the human body produces naturall...eated at MIT, the absorbable sutures are the first made from material produced by genetically modified bacteria. About 20 years ago, researchers in the l...

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