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Tag: "surviving" at biology news

Tyrannosaur survivorship -- tough times for teens

...more than 23 per cent a year. 70% of the animals surviving to two years of age were still alive at age 13, which would help explain why so few bones of young adults have been found. "One implication of these findings is that the previously mysterious rarity of sub-adult tyrannosaur specimens is due to their ...

Colombian frog believed extinct found alive

...archers exploring a Colombian mountain range found surviving members of a species of Harlequin frog believed extinct due to a killer fungus wiping out amphibian populations in Central and South America. The discovery of what could be the last population of the painted frog (Atelopus ebenoides marinkellei) ind...

Wild bees and the flowers they pollinate are disappearing together

...itself might not be too worrying, so long as other surviving insect pollinators are similar, and capable of pollinating the same flower species. However, this is not the case. The research found for both bees and hoverflies, the "winners" and "losers" were consistently different; insects which pollinate a limi...

It's all in the genes

...sity, the greater the chance of associated species surviving environmental degradation. "It's not enough to save rare and endangered species. We need to save genetic diversity in the foundation species," said Jennifer Schweitzer, a co-author of the Nature Reviews Genetics paper and postdoctoral researcher at...

Cycles of cell death, proliferation key to liver cancer

...y, as well as what stimulates the proliferation of surviving hepatocytes," said Karin. "Since we previously knew that JNK activity is required for normal liver cell proliferation, we wondered if the same activity is required for production of liver cancer in carcinogen-exposed mice. The results were clear JNK...

Epidemic of unneeded amputations

...th limb salvage observed in 95 percent of patients surviving to six months(1). The procedure is now available in more than 300 hospitals across the U.S. Amputation decisions greatly impact lives of many people, like Michael Sevante, of Houma, La. In 2002, Sevante had recurring leg cramps and was diagnosed wi...

'Prosthetic' retinal cells let blind mice see light

...pened the possibility of genetically modifying the surviving retinal interneurons to function as a replacement ...microbial-type channelrhodopsins, such as ChR2, in surviving retinal neurons may be another potential strategy for the treatment of complete blindness caused by ...

Stem cell transplants improve recovery in animal models for stroke, cerebral palsy

...troke, we are able to increase the number of cells surviving along that penumbra and that is how we feel it is producing significant recovery, by rescuing cells within the penumbra." Animals in the model of cerebral palsy, a condition caused by an ischemic injury similar to stroke but occurring before or duri...

Dogs keep dying: Many owners unaware of toxic dog food

...ood but show no clinical signs." She suspects that surviving dogs may develop chronic liver disease, perhaps liver cancer, and that many dogs that ate the tainted food appear healthy are nevertheless victims of liver damage. Yet many dog and kennel owners remain unaware that some 19 brands of Diamond, Country...

Study: Paramedics save more lives when they don't follow the rules

... created by TV shows such as "E.R.", the chance of surviving an out-of-hospital cardiac arrest is usually much less than 10 percent. In spite of periodic updates of standardized international guidelines, survival rates have remained more or less unchanged over the last couple of decades. Survival rates are bet...

Cloned stem cells prove identical to fertilized stem cells

...earchers have tried to test the integrity of these surviving stem cells by transplanting them into fertilized blastocysts and then observing the overall health of the resulting animal. Although these animals generated entirely from cloned stem cells appear to be fine, many scientists don't accept this result a...

Ancient DNA provides clues to the evolution of social behavior

...e linked to the population bottleneck. Because all surviving colonial tuco-tucos are closely related, it makes sense evolutionarily for individuals to cooperate, she says. ''If you're closely related to everyone, there's not as much reason to fight,'' Chan explains. ''Tucos have a high cost to dispersal-if th...

Researchers create pigs that produce heart-healthy omega-3 fatty acids

...y to resist treatment, Maley says. Adapting to and surviving chemotherapy, these resistant cells could breed, leading to a cancer relapse. He hopes to pursue this hypothesis in the future. "More immediately," he adds, "we intend to validate the new study with other cohorts and other types of tumors." ...

Evolutionary biology research techniques predict cancer

...y to resist treatment, Maley says. Adapting to and surviving chemotherapy, these resistant cells could breed, leading to a cancer relapse. He hopes to pursue this hypothesis in the future. "More immediately," he adds, "we intend to validate the new study with other cohorts and other types of tumors." ...

BiovaxID?yields 89 percent survival in patients with aggressive non-Hodgkins

...his type of lymphoma only have had a 50% chance of surviving 3 years and 20% chance of surviving 5 years. BiovaxID, an investigational personalized anti-cancer vaccine, stimulates the immune system...

New study of the world's smallest elephant

...he elephant family with an estimated 1,100 - 1,500 surviving in the wild. The Cardiff School of Biosciences study led by Professor Michael Bruford and funded by the Department of Environment, Food and Rural Affairs, will provide the Sabah Wildlife Department with a range of essential conservation and manage...

UCLA discovery will aid in treatment of patients with a deadly brain cancer

...itiating therapy than those without the variation, surviving 253 days versus 50 days. To confirm their promising work, Mischel and his team obtained tissue samples from 33 brain cancer patients treated at another facility without knowing who the responders were. They were able to independently replicate their...

Scientists must offer solutions for conserving tropical forests in a rapidly changing world

... Costa Rica, diameter-growth rates decreased among surviving individuals for cohorts of nine species measured annually for 17 years. These mysterious changes may be caused by large-scale drivers, such as increasing carbon dioxide in the atmosphere, intense droughts, or other poorly understood phenomena. Wrig...

Study Holds Promise For New Way To Fight HIV

...deer. The fallow deer (or Dama dama) is the last surviving member of the megacerine (giant deer) fossil group and has changed considerably since its prehistoric origins. Although its lineage can be seen in the antlers - the fallow deer has the same flattened antlers that the giant deer was renowned for - in ...

Extinct giant deer's descendant found in UK

...deer. The fallow deer (or Dama dama) is the last surviving member of the megacerine (giant deer) fossil group and has changed considerably since its prehistoric origins. Although its lineage can be seen in the antlers - the fallow deer has the same flattened antlers that the giant deer was renowned for - in ...

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