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Tag: "survival" at biology news

U-M team recovers ancient whale in Egyptian desert

...dom instances of seemingly miraculous, unexplained survival in so-called clinically dead humans and our ability to induce ?and reverse ?metabolic quiescence in model organisms could have dramatic implications for medical care," Roth said. "In the end I suspect there will be clinical benefits and it will chang...

First frozen egg baby born in Canada

...ng technique, which has dramatically increased egg survival rate. Human eggs are very fragile and have high wa...h prevents ice crystal formation and increases egg survival to approximately 90%. The frozen eggs can then be safely stored in the Cryoleaf until it is ready fo...

Silence the gene, save the cell: RNA interference as promising therapy for ALS

... form of the SOD1 protein may be necessary for the survival or function of adult human motor neurons, the Swiss researchers designed a gene replacement technology that allows the knock-down of all mutant SOD1 forms while permitting the expression of a normal type SOD1 protein that is resistant to RNA interfer...

Protein That Promotes Survival Of Stem Cells Might Be Key To Poor Leukemia Prognosis

...ily protein--Mcl-1--is essential for promoting the survival of these cells." Progenitor cells are precursors arising from HSCs; these cells produce daughter cells that become increasingly specialized and then produce specific types of blood cells, such as B lymphocytes--immune cells that produce antibodies. ...

Yeast Network Prevents Damage By Oxygen Radicals

...involved in DNA repair or cell cycle control. Cell survival and accumulation of DNA mutations and gross chromosomal rearrangements in each strain were then analysed to identify genes that cooperate to prevent the deleterious effects of ROS and promote normal cell survival. "These results suggest that endogen...

Emergence of cancer as major cause of childhood death in developing countries is not being adequately addressed

... to effective cancer therapy,?Pui said. “And their survival rates are very inferior to rates in countries with advanced health care systems. However, the World Health Organization and many international charities don’t even list chronic diseases, including cancer, as health priorities on their agendas.?/p>...

Shift of weather patterns necessitates rethinking of reforestation methods

Forest landowners can greatly increase the survival rate of pine tree seedlings by changing when and h...n ongoing comparison of planting methods show that survival rates could be significantly increased by using containerized seedlings and planting in the fall ins...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...c messages that could play a crucial role in their survival and reproductive success. "Perhaps they're sending out signals to potential mates far away," she says. "Or maybe they can tell if a predator is in the vicinity by picking up seismic cues from a distressed herd." These underground messages may not be...

Turning viruses into allies against cancer

...proaches, its prognosis remains poor with a median survival of about 10 months following diagnosis. For this r...el methods that could improve short- and long-term survival from this disease. "The attenuated vaccine strain of measles virus is an oncolytic virus which has ...

Chromosome Deletion Predicts Aggressive Neuroblastoma

...h the chromosome deletion had a three-year overall survival rate of 66 percent, compared to 83 percent for patients without the deletion. Dr. Attiyeh's research abstract received top honors at the ASCO meeting, by being named the top abstract among more than 100 submitted by oncology fellows. It also receive...

The evolutionary triumph of flower power

...ey; and others, states that in spite of some basic survival uses such as edible or medicinal flowers, most flowering plants grown in the flower industry today are not used for any purpose other than emotional satisfaction. "Our hypothesis is that flowers are exploiting an emotional niche. They make us happy,...

Habitat use by North Pacific right whales, Eubalaena japonica, in the Bering Sea and Gulf of Alaska

...ne areas and ecological parameters critical to the survival of this remnant population of right whales, habitat use was investigated by scientists at the NOAA National Marine Fisheries Service's, National Marine Mammal Laboratory, in Seattle, Washington by examining all available sighting and catch records in...

One gene links newborn neurons with those that die in diseases such as Alzheimer's

...ood die, but a bird's active singing increases the survival rate of new neurons. They reasoned that, if UCHL1 levels are related to the death or survival of neurons, these levels should increase when birds are singing and when more new neurons thus have ...

Protein prevents detrimental immune effects of bacterial sepsis

...n 1 in the first 24 hours following LPS treatment, survival increased to 60%. These results, obtained in the lab of Dr. Mauro Perretti, highlight the delicate balance between the "pro-inflammatory/detrimental vs. anti-inflammatory/protective phases" of the immune response. Dr Perretti explained, "For too lon...

Elephant seal pups suffer from ocean warming

...ture therefore directly affect the weight, and the survival rate, of the pups. To assess the impact of temperature changes on food availability to elephant seals, Le Boeuf and Crocker monitored the weight of 2750 elephant seal pups over a period of 29 years, from 1975 to 2004, during which the ocean temperat...

Bevacizumab Combined With Chemotherapy Improves Progression-Free Survival for Patients With Advanced Breast Cancer

...ts primary endpoint of increasing progression-free survival (the amount of time patients lived without the cancer getting worse). Preliminary results suggest that patients in the study who received bevacizumab in combination with standard chemotherapy consisting of single-agent paclitaxel had a delay in wors...

Disease progression model of pancreatic cancer developed by Penn researchers

... among the most lethal of cancers, with a one-year survival rate after chemotherapy of only 17 to 28 percent of patients, according to the National Cancer Institute. Sunil R. Hingorani, MD, PhD, and David A. Tuveson, MD, PhD, both in the Departments of Medicine and Cancer Biology, and colleagues, engineered ...

The circadian clock: Understanding nature's timepiece

... In some cases, the circadian clock contributes to survival strategies as simple as not drying out when the sun comes up. Plants and animals have their own environmental niches and also unique temporal niches, as any cat owner can tell you. ...

Symbiotic bacteria protect hunting wasps from fungal infestation

...increased larval mortality ?in fact, little larval survival ?suggesting that the bacteria produce antibiotics that work against pathogenic fungi. These findings broaden our understanding of the evolution and functioning of symbioses that involve protective bacteria, and they may ultimately provide insight int...

Researchers find new giant amphibian fossils in Africa

...million years ago had a dramatic effect on species survival and evolution," says Larsson. "Something to keep in mind when evaluating similar changes in today's world." ...

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