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Tag: "produce" at biology news

Ape gestures offer clues to the evolution of human communication

...tions to communicate a message. "While chimpanzees produce more of these combinations, bonobos respond to them more often. This finding suggests the bonobo is a better model of symbolic communication in our early ancestors," concluded Pollick. ...

Research project tackles 'regeneration' gap

...in cells can generate new brain tissue in mice and produce large amounts of new brain cells in culture for use as possible replacements for dead or injured cells. The UF project is "bold" because it takes a comprehensive view of regenerative medicine, according to Arlene Y. Chiu, Ph.D., director for scien...

Molecular motors and brakes work together in cells

...r grows beyond the end of the mother to ultimately produce two microtubules, connected by the cross-linking MAP ase1p. "Imagine that the daughter microtubule is a short train on the track of the mother microtubule," explains Tran. "The molecular motor is the train's engine, but the problem is that the ca...

Stress hormones may play new role in speeding up cancer growth

...ne, a stress hormone, can stimulate tumor cells to produce two compounds. These compounds can break down of t...ress hormones can stimulate ovarian tumor cells to produce these three compounds. The key to that discovery was that the two stress hormones ?epinephrine and n...

Microbes compete with animals for food by making it stink

...mmunities. But their role as classic consumers who produce chemicals to compete with larger animals could be ...onsumed by animals," Hay added. "If microbes could produce chemicals that prevented crabs or fishes from using these resources, then those microbes should gain...

Gene key to taste bud development identified

...s. She selected the added gene for its capacity to produce a special protein, called enhanced green fluoresce...ade by Pevny in which the SOX2 gene was altered to produce only low levels of SOX2. In these animals, the stem cells in the tongue were not transformed into ta...

U of M researchers invent 'flashy' new process to turn soy oil, glucose into hydrogen

...eat is needed, because the chemical reactions that produce syngas release enough heat to break up subsequent ...n a team he headed invented a similar apparatus to produce hydrogen from ethanol. ...

How fish mend a broken heart

...xplained. Indeed, they found, heart muscle cells produce the growth factor, while epicardial cells harbor receptors that are triggered by the signal. When the researchers experimentally blocked the Fgf signal, heart regeneration failed. "It is tempting to speculate that the ability to mobilize epicardial...

Monoclonal antibody reduces exacerbations in asthmatics

...t of monitoring peak expiratory flow (PEF), it did produce a significant decrease in the diurnal (during the day) variation in the PEF rate." (With PEF monitoring, patients take as deep as a breath as possible, then exhale as forcefully as possible into the mouthpiece of the PEF meter for three tests. As a ...

Cloned mice created from fully differentiated cells, a milestone in cloning research

...blood cell that itself is incapable of dividing to produce a second generation of its own kind. This is the...the stem cells. Only the granulocytes were able to produce two live cloned pups, although both died within a few hours of birth. As a control, the researchers ...

Lungs try to repair damaged elastic fibers

...ffer lung injuries increase elastin expression and produce new elastic fibers inside the alveoli, Woods said. Adults do not have that ability and that has led physiologists to conclude that the elastin gene must shut off after we reach a certain age, ending elastin fiber production. Physiologists want to ...

Unique gene regulation gives chilly bugs survival advantage at bottom of the world

...proteins. Instead, like most animals, adult midges produce these proteins only when they are stressed. The di...in the harsh Antarctic environment. But the adults produce these proteins only when directly confronted with an environmental challenge. "Clearly there is so...

Fake pesticides threaten food safety

... a fake herbicide. And a 2002 study of supermarket produce in the UK found traces of eight illegal and potentially dangerous compounds. 'Generally, speaking, it would be wrong to blame farmers [for buying the products] as in many cases they firmly believe they are buying legitimate products. We've had cas...

Living view in animals shows how cells decide to make proteins

...es found in every cell of an individual’s body can produce different proteins in different tissues and organs...native splicing, it became clear that one gene can produce multiple proteins. In alternative splicing, microscopic "scissors" in a gene chop the genetic mat...

Why do cold animals make bigger babies?

...h revealed that the lizards in colder environments produce larger offspring than lizards in warmer environments. So why do animals in colder climates produce larger offspring? One theory suggests the larger size of offspring counteracts their slow growth in ...

Stem cells engage in dialogue with the cells that regulate their futures

...stem cells replenish the stem cell pool. They also produce progeny that change into other, specialized cells....cells. On the other hand, when stem cells don't produce functional Delta protein, they cease to be stem cells and soon leave the niche. The researchers also...

Evolution of Old World fruit flies on three continents mirrors climate change

...h short life spans, such as a fruit fly, which can produce several generations in a single year. "In the long term, this suggests that climate warming is already having genetic effects, at least on these organisms," Huey said. "The good news is that these flies may be able to adapt, at least to some exten...

Bacteria in small sea life yield new way to make potential cancer drugs

...ew method uses genetic pathways in the bacteria to produce the small chemicals and to manipulate them to inve...eria from animals, take DNA from the bacteria, and produce compounds." Now that they've shown compounds can be synthesized from DNA, the researchers want to...

'Killer' B cells provide new link in the evolution of immunity

... In the adaptive immune system in mammals, B cells produce antibodies to fight infection. In the more-primitive innate immunity in fish, the scientists found that B cells take part in a process known as phagocytosis, by which immune system cells ingest foreign particles and microbes. In modern mammals, the...

Protein structure initiative launches new resources for the scientific community

...000 clones. Norvell expects the current centers to produce a total of 20,000 clones annually. Knowledgebase In fall 2007, the PSI will establish a "Knowledgebase" that will serve as a headquarters for structural information generated by its centers. For every protein, scientists will be able to find th...

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