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Tag: "greater" at biology news

Agent slows aging in mice

...iet and NDGA so far have survived in significantly greater numbers than mice on a normal diet. Scientists measured the difference at a point called median lifespan, when half the control mice had died of natural causes associated with aging. “This is the first time to my knowledge when an agent has been ...

Enzyme delivered in smaller package protects cells from radiation damage

...y temperature for 7 days at which time colonies of greater than 50 cells were counted. The MnSOD transfected cells were significantly more resistant to ionizing radiation than the non-tranfected cells. However, there was no significant difference in survival between MnSOD-minicircle and MnSOD full plasmi...

A new plant-bacterial symbiotic mechanism promising for crop applications

... possible to increase agricultural production of a greater number of important plants, notably in tropical countries, while cutting down the use of fertilizers....

Bigger horns equal better genes

...c diversity. Past research studies have shown that greater genetic diversity correlates with a greater chance of survival. "The size of the horns reliably advertises the genetic quality of the ibex—a...

New study finds genetically engineered crops could play a role in sustainable agriculture

...ata from many individual experiments can provide a greater understanding of a complex issue. The project is enhanced by the creation of a public database, Nontarget Effects of Bt Crops, developed by NCEAS ecoinformatics expert, Jim Regetz, that will allow other scientists to conduct congruent analyses.” ...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...igin than research carried out in countries with a greater ethnic mix.” The authors point out that the gen...ancer, coupled with ageing populations, will place greater demands on dermatology and other related specialties over the coming years. “The number of people...

Researchers examine carbon capture and storage to combat global warming

...or, it can be near permanent,'' Benson said. Of greater concern to the researchers are the potential risks of carbon sequestration to human health, mainly through asphyxiation and groundwater contamination. The threat of asphyxiation-or suffocation due to carbon dioxide displacing oxygen-is very low, t...

Risk of stroke doubles if diagnosed with Type 2 diabetes

...similar age, the relative risk for stroke was much greater in younger persons with diabetes than for older persons. As it has been more common to study stroke prevalence within 10 years after diagnosis, this is the first study to specifically examine stroke-related outcomes immediately after the diagnos...

454 sequencing identifies HIV drug resistance at early stage

...that are present at levels of approximately 20% or greater in the circulating viral population in a patient. Thus, the current technology used in the clinic may miss many low-level resistant HIV strains which can grow rapidly under drug selection pressure and lead to therapy failure. This retrospective stud...

Weizmann Institute scientists develop a general 'control switch' for protein activity

...find the ones that respond to the drug. With their greater resources, biotechnology companies will be able to create much larger sets of engineered proteins in order to find one that best meets their needs.” The method developed by the Weizmann Institute scientists is ready for immediate use, both in basi...

Children of smokers have more than 5 times higher levels of a nicotine toxin

...o passive smoking, such as poorer ventilation or a greater tendency for parents to smoke indoors in winter.’ Sleeping with a parent is a know risk factor for cot death and the authors suggest that one reason for this could be inhalation of, or closeness to clothing or other objects contaminated with, smo...

Antarctic icebergs -- Hotspots of ocean life

...avalanche of information. “The whole is definitely greater than the sum of the parts, and to answer questions across the different areas from ecology to chemistry and climate, scientists need access to all the data,” explained researcher John Helly of the San Diego Supercomputer Center (SDSC) at UC San Diego...

Focused ultrasound relieves fibroid symptoms in women

...Women treated with the optimized protocol reported greater symptom relief and quality of life improvement tha...ess restrictive protocol allows for treatment of a greater fibroid volume, which results in even greater symptomatic relief at clinical follow-up," Dr. Fenness...

Arctic ice retreating more quickly than computer models project

...at greenhouse gases may be playing a significantly greater role. There are a number of factors that may lead to the low rates of simulated sea ice loss. Several models overestimate the thickness of the present-day sea ice and the models may also fail to fully capture changes in atmospheric and oceanic cir...

Early exposure to indoor fungus molecules may protect infants against future allergies

...on Study (CCAAPS), who were identified as being at greater risk for future allergies because at least one parent had known allergies. The CCAAPS, funded by the National Institute of Environmental Health Sciences, is a five-year study at UC examining the effects of environmental particulates on childhood r...

Mice with a migraine show signs of brain damage

...headache sufferers, echoes Nedergaard’s call for a greater emphasis on prevention. “It’s astounding just how many migraine sufferers do not see a doctor and are not on a medication to prevent a recurrence,?said Friedman, professor of Ophthalmology and Neurology. “It’s estimated that less than 20 percent o...

Machine preservation may promote more organ sharing

...costs, improve initial organ function, and promote greater use and more sharing of organs, according to new research by Wake Forest University Baptist Medical Center. "By placing kidneys on a portable pump, preservation times can be safely extended to permit more time for sharing organs across the country,"...

Amphibians in losing race with environmental change

...ed that the rate of plant and animal extinction is greater now than any known in the last 100,000 years, the researchers note in their report. Amphibians are of particular interest because their physiology and complex life cycle often exposes them to a wider range of environmental changes than other species ...

Why do oysters choose to live where they could be eaten?

...e captured by a feeding adult is nearly certain at greater than 90 percent. A series of experiments examining the feeding currents produced by adult oysters and how larvae actively settle on reefs helped solved the puzzle. Oyster feeding currents are actually very weak, so while they will readily eat larv...

Double the death rate from cirrhosis for 'blue collar' men

... men from lower socio-economic backgrounds were in greater danger of liver cirrhoses because of their heavy and binge drinking. Liver cirrhosis accounted for 3.3 percent of all deaths among men aged between 15 and 64 in Australia in 2002 (543) and is the 10th largest overall killer of men. Cirrhosis ...

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