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Tag: "become" at biology news

Research finds that circadian rhythms dominate all life functions

... regular periods of day and night. Oscillation can become chaotic in states of consistent lighting or lack of lighting, but it never stops. Comparing the complex system in which the genes function to an AC power grid, Ptitsyn made the discovery by plotting the expression of 20,000 genes on a scale of freq...

The kapok connection -- Study explains rainforest similarities

...to survive an oceanic voyage and then successfully become established elsewhere, such improbable events become probable over 10 to 15 million years." Dick studied the rainforest form of Ceiba pentandra, a spe...

Potato wart eyed as risk to potato production

...e devastating to growers. Indirect economic losses become especially evident in potato production areas that are subject to quarantine measures, as well as when the movement of commercial potatoes is restricted. Spores released from infected plants can make soil unsuitable for potato production for deca...

Fat fish put obesity on the hook

... to the survival of our species. The zebrafish has become a model animal for the study of many diseases because it has a backbone and because its genetics have been well described. This is one more example of how basic experimental biology – zoology physiology and genetics in this case – can be brought to...

Turn-ons and turn-offs for neurons

...inactive in neurons during early mouse development become functionally silenced in the adult brain. Intriguingly, Hasan and colleagues found that gene silencing in the adult brain can be avoided by making neurons produce high levels of gene-specific activators which facilitate “un-silencing” of previously s...

Study identifies 5 genetic themes key to keeping stem cells in a primitive, flexible state

...ialized cell types. But as genetic techniques have become increasingly powerful, many scientists have sought a more molecular definition of stem cells, based on the genes they express. Now, a team of Canadian scientists has identified 1,155 genes under the control of a gene called Oct4 considered to be th...

Ancient retrovirus sheds light on modern pandemic

... doing archaeology -- figuring out how humans have become who we are today and why we are or are not susceptible to modern viruses that presently circulate," Emerman said. In fact, this emerging area of research, which seeks to better understand modern infections by studying ancient viruses, is known as "...

Experts predict Tamiflu could halve the pandemic influenza death toll versus no intervention

...e first doses of a matched vaccine are unlikely to become available within the early months of the pandemic, making prophylaxis and treatment with antivirals a crucial part in the efforts to reduce the burden of pandemic influenza.4 “In an environment full of uncertainties, it is best to have a comprehe...

New vaccine prevents CMV infection and disease in mice

... body of the virus, people remain infected and can become re-infected or infect others through saliva. “Children in day care settings, for example, or adults who are sexually active, can pass along the virus,” explained Spector. “It becomes a serious problem in developing infants during the pregnancy o...

Adult stem cells from human cord umbilical cord blood successfully engineered to make insulin

...iabetes, researchers might engineer these cells to become islets of Langerhans, the cellular masses that produce the hormone insulin, which allows the body to utilize sugar, synthesize proteins and store neutral fats, or lipids. "But we’re a long way from that," Denner warned. Denner said this research,...

Avian influenza survivors' antibodies effective at neutralising H5N1 strain

... This is particularly important as people who have become infected with the virus do not tend to report to their local healthcare facilities until several days after the onset of illness." The antibodies were discovered in the laboratory of Professor Antonio Lanzavecchia at the Institute for Research in ...

HIV and malaria combine to adversely affect pregnant women and their infants

...ble to PAM whereas women in subsequent pregnancies become protected against PAM. Having HIV results in this ...HIV-infected women lose these antibodies and again become susceptible to the ravages of PAM. The findings, according to Kain, may help in the development o...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...e ecology of picoeukaryotes, said Moreau, has thus become an intense field of investigation over the last decade as these microalgae, although representing a minor component of the plankton, nevertheless play major roles in oceanic biomass production. "With even more picoplankton genomes in the sequencin...

How to look at dinosaur tracks

...imensions, and general appearance of the footprint become seriously altered by erosion.? Geologists also must account for whether the step was taken on a sloped surface or on a horizontal surface, and whether it was taken during dry season or wet season. For example, estimating foot length from tracks...

Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems

...activity, which are expected by many scientists to become worse as a result of global warming. Jetz and B...roductions wreaking havoc on islands are likely to become more common as the islands face increasing pressures from population growth, tourism, development, a...

Novel system developed to turn data into real-time, interactive 3-D images

...scan, images of the body’s tissues and organs have become the primary tools physicians use to diagnose disease and make recommendations for effective treatment. New, innovative data display technology developed at Kent State University will provide doctors with a dramatically improved ability to evaluate...

Keeping the immune system from starting a 'food fight'

...erload of nutrients, the flood control protein may become overwhelmed and give out, leading to the chronic, low-grade inflammation characteristic of obesity and other metabolic diseases, the researchers suggest. Treatments designed to reinforce that barrier may therefore provide the "next frontier" of thera...

Legal ruling may put endangered species in danger

...ve allowed our national symbol, the bald eagle, to become extinct in the lower 48 states, surviving only in ...laska, and it would have allowed the gray whale to become extinct in U.S. waters," Vucetich went on to say. Vucetich and Michael P. Nelson, associate profe...

Brain's white matter -- More 'talkative' than once thought

...e coming from. By forcing single nerve cells to become excited one at a time, they discovered that as electrical impulses are carried along the nerves, glutamate is released and causes electrical signals in the OPCs. A further microscopic hunt revealed that pools of glutamate were present in the nerve fi...

New knowledge improves rice quality

... consumers, especially those in Asia, who, as they become increasingly affluent, are seeking ?and paying for ?better quality food. "Much of this research would not have been possible ten years ago because we simply did not have the knowledge or the understanding of quality that we do now," Robert S. Zeig...

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