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Tag: "lived" at biology news

Human stem cells delay start of Lou Gehrig's disease in rats

...ve stem cells started losing weight at 59 days and lived for 86 days after injection, whereas control rats ...ad stem cells started losing weight at 52 days and lived for 75 days after injection. The rats were coaxed to crawl uphill on an angled plank, and their ...

Older men treated for early prostate cancer live longer than those who are not

...eatment for early stage, localized prostate cancer lived significantly longer than men who did not receive treatment. The study will be published in the December 13th issue of the Journal of the American Medical Association. Thanks to better cancer prevention education and the resulting wide-spread increa...

Genetic study of Neanderthal DNA reveals early split between humans and Neanderthals

...y is riddled with contamination from microbes that lived off the nutrients in the Neanderthal remains, as well as contamination from humans handling the specimens. However, the scientists performed a variety of studies to confirm that the vast majority of the human-like sequence in the library was indeed...

Pattern of human Ebola outbreaks linked to wildlife and climate

... first known Ebola outbreak in Gabon, while others lived in regions where no known epidemics had occurred. In 2003, Lahm was able to track down six of the people whose blood samples indicated that they had been exposed to the Ebola virus. Life history interviews revealed that some of the antibody-positiv...

Key to acute lung injury lies in Ang2 protein

...e Ang2 gene was genetically eliminated or silenced lived longer and had evidence of decreased lung injury compared to mice in which the gene and protein were intact. Levels of the Ang2 protein were then measured in the blood and lung fluid of adult patients and babies with acute lung damage and pulmonar...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

... all three domains was a single-cell organism that lived in extreme conditions when the Earth was very young and very hot, and the atmosphere contained large amounts of methane instead of oxygen. Although similar in size and shape to bacteria, genetic analysis reveals that archaea are actually more closel...

New bird discovered on unexplored Columbian mountain

...fore we began this study, no one knew what species lived in the Yariguíes Mountains and whether they needed protecting," said Thomas Donegan. "Now, we are beginning to describe new taxa and a national park was established in the region. It is surprising that this new brush-finch and the forests of the Yari...

'Super' enzyme may lead way to better tumor vaccines

...tic cells. "As predicted, these dendritic cells lived longer and were more potent, both in the laboratory and in mice," he said. "It led to the elimination of some very aggressive tumors in the mice." In the laboratory, they found that the "super" Akt1 also has a potent effect on human dendritic cell...

New approach to BSE successful in lab

...ge after 165 days, the mice which had been treated lived appreciably longer,?is how Professor Kretschmar summarises the results. BSE-resistant cattle" It varied how much longer they lived: if only a few cells could produce siRNAs, the mice died at almost the same time as the control mice, i.e. on ave...

Radiation after surgery doubles survival time for some lung cancer patients

...underwent chemotherapy and radiation after surgery lived almost two years longer (47 versus 24 months) than those patients who had only chemotherapy after surgery. "This is the first time that a clinical trial has examined the effectiveness of radiation after surgery for lung cancer," said Jean-Yves Douil...

Unique gene regulation gives chilly bugs survival advantage at bottom of the world

...wo in the field and, in the laboratory, the adults lived for five to six days at the lower temperature. But...d in less than a day. However, the larval midges lived up to four days at the higher temperature ?four times longer than the adults. "The adults were con...

Single molecule extends fat mice lives by reversing gene pathways associated with disease in obese

...3 study showed that yeast treated with resveratrol lived 60 percent longer. Since 2003, resveratrol has been shown to extend the lifespan of worms and flies by nearly 30 percent, and fish by almost 60 percent. It has also been shown to protect against Huntington's disease in two different animal models (w...

Biologists call for better choice of model organisms in 'evo-devo'

...tion, some workers feel that evo-devo hasn’t quite lived up to its early expectations," said Dr Jenner. "Partly this is because too much was expected too soon, but we suspect that in terms of its future promise the current choice of new model organisms has not yet been optimised. Dr Wills said: "Many...

'Ancestral eve' was mother of all tooth decay

...can be traced back to a single common ancestor who lived in Africa between 100,000 and 200,000 years ago. S. mutans is transmitted from mothers to infants, and first appears in an infant’s mouth at about two years of age. Caufield’s findings are reported in an article in the February issue of the Jou...

Prehistoric mystery organism verified as giant fungus

...n Chemical Society Petroleum Fund. Prototaxites lived worldwide from approximately 420 million to 350 mi...rbon contained in Prototaxites and the plants that lived in the same environment approximately 400 million years ago. The metabolism of plants is limited ...

Cancer researchers add spice to research against rare neuromuscular disease

... Their muscles appeared to work normally, and they lived 40 percent longer than the untreated mice. In addition, the mice treated with ASC-J9 were able to mate and produce offspring, while their counterparts could not. ASC-J9 appears to work by breaking up a sort of molecular clog in neurons affected b...

New research says winning a Nobel Prize adds nearly 2 years to your lifespan

...e who had "merely" been nominated for a prize (who lived on average for 75.8 years). When the survey was restricted to only comparing winners and nominees from the same country, the longevity gap widened even more by around another two thirds of a year on average. Professor Oswald said: "Status seems to...

Paleontologists discover new mammal from Mesozoic Era

...ogists has discovered a new species of mammal that lived 125 million years ago during the Mesozoic Era, in what is now the Hebei Province in China. The new mammal, documented in the March 15 issue of the journal Nature, provides first-hand evidence of early evolution of the mammalian middle ear--one of th...

Tumor-suppressor gene is critical for placenta development

...coded by the E2f3 gene. Embryos missing both genes lived three days longer than the embryos missing Rb only, but all died before birth. "This showed that the interaction of these two proteins is definitely important," Leone says. "It strongly suggests that E2f3 is a key player in mediating Rb function i...

New study sheds light on 'dark states' in DNA

... wisdom. So the dark states, which are much longer lived than previously known states created by UV light, may be linked to DNA damage. The existence of this dark energy state -- dubbed np* (pronounced "n-pi-star") -- had previously been predicted by calculations. Other experiments hinted at its existenc...

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