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Tag: "restricting" at biology news

Muscle-targeted gene therapy reverses rare muscular dystrophy in mice

...ght Koeberl, M.D., senior author of the study. "By restricting the expression of introduced genes to muscle, the immune response can be prevented or attenuated." The muscle-targeted gene therapy might therefore apply to other forms of muscular dystrophy, they added. Muscular dystrophies include many genetic dis...

World's largest rainforest drying experiment completes first phase

...ir leaves become clogged with water vapor bubbles, restricting their growth for years to come? These are just some of the questions that will be explored during the final two years of this experiment. Collaborating organizations in this effort include IPAM (Instituto de Pesquisa Ambiental da Amazonia), EMBRAPA ...

New tumor-suppressor gene discovered

...ants may regulate cell number and tissue growth by restricting the proliferation of cells and promoting their timely death," Lai says. This is the first time that any gene in the large superfamily to which the mats gene belongs has been shown to play a critical role in growth inhibition. The scientists began t...

Caloric restriction won't dramatically extend life span in humans: UCLA research

Severely restricting calories over decades may add a few years to a hum...ill not have rodent-like results from dramatically restricting calories," he said. "Caloric restriction is not a panacea. While caloric restriction is likely to be...

First production of human monoclonal antibodies in chicken eggs published in Nature Biotechnology

...encoding the antibody and the regulatory sequences restricting its deposition to egg white. The stem cells were then introduced into chick embryos. At this stage of development, the embryonic stem cells can make significant contributions to the developing chicken. Resulting chimeras with large contributions from...

Newly discovered genetic disease sheds light on body's water balance

... adults retain too much water we can treat them by restricting fluid intake," he said. "We can't do that with infants -- almost all of their nutrition comes in liquid form." The physicians were reluctant to use other medications that generate increased water loss in the kidneys, as these can have side effects o...

Study: Plants use dual defense system to fight pathogens

...hese kinds of responses are extremely important in restricting the growth of many pathogens." The other pathway uses disease-resistant proteins, or R-proteins, which can detect certain molecules, called effectors, that are secreted by pathogens. This pathway produces a stronger immune response than the PAMP pat...

Embryonic stem cells accrue genetic changes

... of Health under President George W. Bush's policy restricting federal funding of this research to cell lines in existence before his announcement of the policy at 9 p.m. ET, Aug. 9, 2001. The dozens of human embryonic stem cell lines developed since that announcement cannot be used in federally funded research....

Computers to save unique type of American red squirrel

... methods, such as limiting access to the mountain, restricting hunting and an existing squirrel refuge did not appear to be stemming the population's decline. He said: "It's very important that we preserve the Mount Graham Red Squirrel, which has survived since the last Ice Age. Its decline in recent years is an...

Pacific Islands paradise protected

...m in Boston. Protecting the Phoenix Islands means restricting commercial fishing in the area, resulting in a loss of revenue that the Kiribati government would normally receive from issuing foreign commercial fishing licenses. However, an innovative plan will compensate Kiribati for these lost revenues. Under...

Gene needed for butterfly transformation also key for insects like grasshoppers

... it looks like metamorphosis evolved in insects by restricting the expression of the broad gene to a short but intense period of change at the transition from larva to pupa." Normally an insect like the grasshopper that does not undergo complete metamorphosis goes through subtle physical changes during each of ...

Less antibiotic use in food animals leads to less drug resistance in people, study shows

Australia's policy of restricting antibiotic use in food-producing animals may be li...ations have also realized the apparent benefits of restricting antimicrobial use in animals. Sweden prohibited the use of fluoroquinolones for food animals in 1986...

Losing sleep undoes the rejuvenating effects new learning has on the brain

..., Hairston and her team wanted to find out whether restricting sleep during a spatial learning task would affect new cell production in the hippocampus. The experiment: swimming to the exit platform The researchers trained rats on one of two tasks using a water maze -- a plastic pool about six feet in circum...

Scientists uncover rules for gene amplification

...tment could involve curbing cancer development via restricting gene amplification. The first step towards achieving this is to discover the rules that govern whether an amplification event is a double minute or a homogenously-staining region. It's known that regions of chromosomes that are prone to amplificatio...

Bubbles go high-tech to fight tumors

... kind. A major difficulty with these approaches is restricting the emboli to the tumor to minimize destruction of surrounding tissue, without extremely invasive procedures, Bull said. The emboli must be delivered by a catheter placed into the body at the tumor site. Gas bubbles, on the other hand, allow very ...

Air travel and flu: Post-9/11 restrictions delayed start of season

...fection across large distances? If so, reducing or restricting air travel might be useful in the early stages of a serious global epidemic. Research at the Children's Hospital Boston, now published in PLoS Medicine, has investigated the effects of air travel on the annual spread of flu in the US. The researcher...

Controlling antibiotics and antibiotic resistance in hospitals

... available. Other studies have shown evidence that restricting formularies to previously effective antibiotics can actually help control antibiotic resistance," said Dr. Doebbeling. "Antibiotic resistance is a growing problem for healthcare. Showing that recommended measures seem to prevent it in this nation...

Reminding doctors which antibiotics to prescribe cuts C. difficile infection rates

...cillin, trimethoprim, and amoxicillin, and further restricting cephalosporin use. Dr Stone and colleagues analysed the effectiveness of reinforcing this new policy with a pocket-sized laminated card telling doctors which drugs to use in which circumstances. These instructions were combined with feedback to do...

A healthier start to a pig's life

...mmonly become susceptible to bacterial infections, restricting their growth rate; and often leading to losses of 10% or more. The antibiotics used routinely for many years to control these rapidly-spreading infections have now fallen out of use, mainly due to the increase in resistant strains of bacteria. A ra...

Rewarding fat rats

...s and, hence, their leptin levels. They found that restricting 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 reward sensation. Their work has appeared in notable journals such as Sc...

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