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Tag: "die" at biology news

Fertility hope as study shows eggs survive in older ovaries

...ian follicles. In humans, the eggs are believed to die off from late in foetal life, after birth and into adult life. When egg numbers decline towards zero females can no longer reproduce ?resulting in the condition we know as menopause. Professor Findlay, Dr Kerr and their colleagues have found that th...

Healing the heart with bone marrow cells

...han half of patients with congestive heart failure die within five years of initial diagnosis. "Cardiovascular diseases are the most important cause of mortality in Canada and the western world," said Dr. Ren-Ke Li, scientist at the McEwen Centre for Regenerative Medicine and Professor of Cardiovascular...

A surprise about our body clock

...han half of patients with congestive heart failure die within five years of initial diagnosis. "Cardiovascular diseases are the most important cause of mortality in Canada and the western world," said Dr. Ren-Ke Li, scientist at the McEwen Centre for Regenerative Medicine and Professor of Cardiovascular...

Study provides first look at the 'birth' of a retina cell

...e-related macular degeneration, rod photoreceptors die before cones. As the mouse eye develops, rods sta...e the production of new rods and cones when others die off. In future studies, the Kellogg scientist plans to use this new mouse model in conjunction wit...

New strategy developed to combat West Nile Virus

...e others ?like crows ?are very susceptible and may die from the virus. Birds that are effective hosts may carry the virus and infect biting mosquitoes for 4-5 days before recovering from the illness. "It is this coming together of factors that leads to the spread of the disease," Shaman said. "But becau...

Liquorice cancer care

...d States during2006, and around 16,200 people will die of liver cancer. Studies in mice by Zhi Yuan and his team at Nankai University, China, revealed that the liquorice compounds, glycerrhetinic acid and glycerrhizic acid, preferentially accumulate in the liver. And when attached to anti-tumours drugs,...

Farm kids almost twice as likely to die from injury as children overall

...the total population of young Canadian children to die from an injury. Brison and colleagues collected a...y boys, when on farms are about twice as likely to die from accidental injury as young Canadian children altogether. Most of these mortal injuries occurred...

Gene therapy protects mice from the effects of whole-body irradiation

...the total population of young Canadian children to die from an injury. Brison and colleagues collected a...y boys, when on farms are about twice as likely to die from accidental injury as young Canadian children altogether. Most of these mortal injuries occurred...

Gene therapy accelerates healing of damaged skeletal muscle

...the total population of young Canadian children to die from an injury. Brison and colleagues collected a...y boys, when on farms are about twice as likely to die from accidental injury as young Canadian children altogether. Most of these mortal injuries occurred...

When nerve cells can't make contact

...stem breaks down completely and the mutant animals die immediately after birth. However, their nerve cells can be examined in detail. According to Brose, "they deliver important findings not only for brain research in general, but also for the possible causes of autism. Our investigations show that the n...

Study offers window into human behavior, brain disease

...ecific memory-forming medial temporal lobe neurons die in early Alzheimer's disease. "We hope to add von Economo neurons to that list," says Seeley. "It's a pretty important list to fill in, but for FTD there just hasn't been a good candidate until now. We think we've found it, and that is the most ex...

Buildup of damaged DNA in cells drives aging

...ease in which affected individuals age rapidly and die prematurely. "These progeroid mice, even though they do not live very long, have remarkably similar characteristics to normal old mice, from their physical symptoms, to their metabolic and hormonal changes and pathology, right down to the level of s...

Cancer stem cells linked to radiation resistance

...NA damage and thus render the cells less likely to die as a result of the treatment. In another set of experiments, the researchers treated both the test animals and the cell cultures with a drug, called debromohymenialdisine, which is known to inhibit the proteins involved in the activation process. ...

Temperament linked to onset of cancer and early death in female rats

...periences as infants maintain that temperament and die earlier from mammary and pituitary tumors than do their more adventuresome sisters, according to new research by a team based at the University of Chicago. The apprehensive rats were more likely to have irregular reproductive cycles than adventureso...

Gene chip technology shows potential for identifying life-threatening blood infection

...00 cases occur annually, and one-third of patients die - a toll greater than deaths from breast, colon, pancreas and prostate cancer combined. Currently, a diagnosis of sepsis or non-infectious systemic inflammation is made by sending cultures of patients' blood, sputum, or urine to the laboratory for...

More kidney cancer is detected and treated early, yet death rate rises

...out 12,840 people (8,130 men and 4,710 women) will die from the disease. This study included data from 34,503 kidney cancer patients, including age at diagnosis, race, gender and information about the tumor. During the years 1983-2002, researchers found, the overall incidence of kidney cancer rose from...

Experimental cancer drugs counter muscle deterioration seen in muscular dystrophy

...ys. Most children with Duchenne muscular dystrophy die in their late teens or early 20s. The disease currently has no cure. "We have identified a new rationale for treating muscular dystrophy, aimed at correcting the devastating effects of a single flawed gene," said Puri. "This is a significant advance...

Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack

...l have a severe reaction and one in a million will die from the vaccine, Longini said. "Precautionary vaccination of hospital personnel and post-release vaccination of the target population would further contain the spread of smallpox, but at a cost of many more people being vaccinated," said co-author...

Wild tigers need cat food

...3 percent of the park’s tigers either move away or die each year from either naturally or from poaching outside of the park, yet total numbers remained high. "This study shows that even well-protected wild tiger populations have naturally high rates of annual losses, and yet do fine because of their h...

Extreme environment changes fish appearance

...ions than thought. But refuge-bred fish might well die if reintroduced directly to Devil's Hole in an attempt to rebuild the population. And if an animal's form is so intimately connected to its environment, is it still the same fish if it is not preserved in the same habitat? "What is it that we try ...

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