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Tag: "problem" at biology news

Major initiative proposed to address amphibian crisis

...isappeared from Australia in recent years. And the problem appears to be getting worse. Traditional programs and current laws and policies alone are insufficient to address global threats that cross boundaries of reserves and nations, the scientists said in their report. ...

Methane-belching bugs inspire a new theory of the origin of life on Earth

...dy had properly considered thermodynamics." "The problem of early energy sources has largely been ignored by the classical origin-of-life field," Molecular Biology and Evolution's Martin says, "which has largely been the domain of chemists. But microbiologists are the only ones who understand where the ori...

A sweet solution for Alzheimer's disease?

...Hyslop said. Autoimmune responses shouldn't be a problem with scyllo-inositol. "This compound works by a different mechanism and doesn't involve immunizing a patient with his own protein, which was probably the origin of the allergic reaction to the vaccine," the researcher said. Another complication wit...

Federal testing for mad cow disease a failure, law review editor says

...n's supply of beef has been to deny that there's a problem and to resist comprehensive BSE testing, Gregory L. Berlowitz, an editor at the University of Illinois Law Review, wrote. The net result is that the USDA has placed the welfare and promotional concerns of the beef industry ahead of public welfare. ...

Diabetes hits 275 Australians each day as pandemic spreads

...s the first tangible indication of the size of the problem which will burden current and future generations. These data will be instrumental in establishing priorities and calculating future budgetary needs. "The diabetes epidemic is being driven by lifestyle factors, particularly the dramatic increase in o...

Neural stem cell gene plays crucial role in eye development

..." said Pevny. The scientist pointed out that the problem in eye development in these mice results from loss of SOX2 mediated maintenance of the neural progenitor cell population in the eye. According to Pevny, the study demonstrates that normal development of the eye is contingent upon having the right a...

Tumor wizardry wards off attacks from the immune system

...pancreatic cancer patients. "We're attacking the problem from different angles hoping to translate these findings to our patients," Linehan says. "Right now, no effective treatment exists for pancreatic cancer." ...

Natural pine bark extract relieves muscle cramp and pain in athletes and diabetics

...rienced no decrease in pain. Cramps are a common problem for people of all ages, ranging to the extreme fit and healthy to people who suffer from health problems. Previously, magnesium was hailed as the natural approach for relieving muscle cramps, however studies continue to show magnesium to be inefficie...

What's nature worth? New computer models tell all

...onomics have launched a project to solve a central problem that this young science faces: creating a fast way for policy-makers to understand the specific ecosystem services in their area--and the impacts of different land use decisions--whether looking at a local watershed or whole continent. Over the nex...

Finding paves way for better treatment of autoimmune disease

...ymptoms in a model of graft versus host disease, a problem for some bone marrow transplant patients when immune cells from the donor start attacking. This finding indicates a potential role for helping transplant patients keep new organs, the researchers say. Dr. Iwashima has an Alcoholic Beverage Medical ...

Ready, set, mutate?and may the best microbe win

...to find a smoking gun for Darwinian evolution. The problem lies in being able to say not just when and how a specific gene mutated but also how that one genetic change translated into real-world dominance of one population over another. Rice University biologists, using an ingenious experiment that forced b...

Light guides flight of migratory birds

...tempt to take flight in the migratory direction. A problem arises, however, because funnels block the lower 20 degrees of the sky. In the only two experiments (out of 30 or so) carried out during migration where birds were exposed to the cue conflict with a view of the horizon, they did recalibrate their mag...

With few factors, adult cells take on character of embryonic stem cells

...regarding the use of human embryos, as well as the problem of tissue rejection following transplantation into patients." Those problems could be circumvented if pluripotent cells could be obtained directly from the patients' own cells. "We have demonstrated that pluripotent stem cells can be directly ge...

Fatty spheres loaded with siRNA shrink ovarian cancer tumors in preclinical trial

...liposome. "This particle is so small, it has no problem getting through the tumor's vasculature and into the tumor," Lopez-Berestein says. The FAK-targeting liposome ranges between 65 and 125 nanometers in diameter. Blood vessels that serve tumors are more porous than normal blood vessels, with pores of...

When the going gets tough, slime molds start synthesizing

...e important medicines from nature." For Noel the problem is to understand biocomplexity at a level traditionally ignored - the plethora of natural chemicals found throughout nature. Organisms use chemicals as a means of interacting with their surroundings and mankind has exploited this fact to discover the...

New egg freezing technique offers hope to hundreds of women

...ns a new way to resolve the various aspects of the problem of human oocyte cryopreservation. Using this method, we achieved a more than 90% survival rate for the freeze-thawed oocytes and a high pregnancy rate of nearly 42% after the oocytes had been fertilised and implanted in the women. This pregnancy rate...

Slow-frozen people? Latest research supports possibility of cyropreservation

...y can be frozen and successfully rewarmed. A major problem hindering wider use of cyropreservation is formation of ice crystals, which damage cell structures. Cyropreservation may be most familiar, however, as the controversial idea that humans, stricken with incurable diseases, might be frozen and then rev...

Heart has enough oxygen to survive hypothermia, CPR crucial

...tioning," Tveita stated. Thus, it appears that the problem comes as a result of the lower cardiac output, he added. "Thus, efforts aimed at elevating cardiac output in this phase seem advisable in order to optimize oxygen supply, reperfuse (restore blood flow to) vascular beds (minute blood vessels) and p...

Bird flu study highlights need to vaccinate flocks effectively

...eds to be done extremely well or it could make the problem worse, rather than better. "The research underlines that vaccination, if used, should be part of a comprehensive control strategy including biosecurity, surveillance and diagnostics, education, movement restrictions and elimination of infected birds...

Chromosomal abnormalities in sperm higher after vasectomy reversal

...land, said that doctors needed to be aware of this problem and monitor carefully children born as a result, particularly if ART was involved. Professor Sukchareon and his team had been studying men with obstructive azoospermia, a condition where sperm are created but cannot be mixed with the ejaculatory flu...

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