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Tag: "starve" at biology news

Wheat can fatally starve insect predators

...g of a crop-destroying fly larvae so that the bugs starve to death. The gene's role in creating resistance...o unpalatable that the insects can't feed and they starve to death." Wheat plants that produce few or no lectins that bind to chitin are susceptible to Hes...

New angiogenesis finding may help fight cancer growth

...or reduces the formation of blood vessels, helping starve tumors. But angiogenesis regulation is a two-way street, and there are some diseases in which it might be desirable to stimulate angiogenesis. The new research shows that the NK-B system can work both ways: Reducing inhibition seems to increase ang...

Blood flow in brain takes a twist, affecting views of Alzheimer's

...ould lead to the death of the neurons, which would starve from a lack of nutrients, since the neurons depend on the astrocytes for their survival." The new research focuses on a process critical to the health of people with Alzheimer's and everyone else: the moment-to-moment allocation of vital resources l...

Researchers reverse juvenile diabetes in animal model

...ucose builds up in the blood, but the body's cells starve to death. "We are very excited to begin the clinical trials and see if this process will work in patients with type 1 diabetes," said Dr. Trucco. "A type 1 diabetes diagnosis can be devastating for children and their families. We hope this trial wil...

Mayan stingless bee keeping: Going, going, gone?

...arvesting kills the colony. Native bees may simply starve as deforestation, forest fragmentation and hurricanes reduce the availability of the floral resources they need. Finally, most of the bee keepers on the Yucatan are old men living in rural areas where no one inherits their knowledge of the fine poin...

Unexpected lock and key mechanism found for the assembly of tumor blood vessels

...disrupting its ability to form blood vessels could starve the tumor and stave off cancer." The research team discovered that the integrin brought the endothelia, the inside part of a blood vessel, together to bind with vascular smooth muscle, the outer portion of a blood vessel. Blood vessels only work whe...

Purdue scientists may have found key to halting spinal cord damage

...e the cause of brain damage. But, in fact, you can starve the nervous tissue of oxygen for up to an hour without harm if only you control the acrolein levels," Shi said. "This paper suggests that the body is generally pretty resilient but that acrolein may be something it can't handle." Shi said that some ...

Bees, Brains and Addiction

... the brain that it can forgo eating and ultimately starve to death. The neurobiology and evolutionary basis of the brain circuitry that processes information about rewards is the focus of study by Terrence Sejnowski, a professor of biology at both the Salk Institute and UCSD. He told a gathering of scienti...

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

...; but restrict their intake by 60 percent and they starve to death. "Humans, in contrast, will not have rodent-like results from dramatically restricting calories," he said. "Caloric restriction is not a panacea. While caloric restriction is likely to be almost universal in its beneficial effects on longev...

MIT engineers an anti-cancer smart bomb

..." the theory that cutting off the blood supply can starve tumors to death. That strategy can backfire, however, because it also starves tumor cells of oxygen, prompting them to create new blood vessels and instigate metastasis and other self-survival activities. The next obvious solution would be combining...

A frog's life is food for thought

...st started this project and for an animal that can starve for up to four years it is really interesting when you relate that back to human starvation," she said. "There is no way a human could last for four years without food." Green-striped burrowing frogs spend upwards of 10 months of the year in underg...

Potential treatments for neurofibromatosis

... and their proteins in ways that they believe will starve the tumors. "It's much easier to develop targets against a non-malignant cell than it is the malignant cell itself," said Dr. Clapp. That's because the biological activities of non-malignant cells are stable, while malignant cells are constantly cha...

Growth in the sea comes down to a struggle for iron

...tiny marine plants continue to grow. They begin to starve in the midst of plenty, acting as though iron, an essential nutrient, still is in short supply. Why this happens is unclear, but the answer could be that iron sets off a kind of chemical warfare in the marine ecosystem, according to University of Mai...

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