When implanted in mice, just a few hundred of these stem cells generated a massive tumor.
That revelation has been confirmed in mice, fruit flies, dogs and other lab animals.
In mice, Fouchier said, the mutation makes the infection as much as 1, 000 times more virulent.
"It would have taken us years to screen this many drugs in mice, " says Dr. Kunkel.
WSJ: Birds Do It, Bees Do It, Even Zebrafish Do It��Just Too Little
He took human breast tumor cells, implanted them in mice and waited for metastases to occur.
However, these reports have been in mice and evidence has been inconclusive for humans.
Moreover, in mice at least, this approach shrinks cancers more effectively than other nanoparticle-based treatments.
When injected in mice, the drug worked by increasing metabolism, not by suppressing appetite.
Hopes are high, even though many drugs that work in mice do not work in humans.
The animals produced abnormally high levels of the stress hormone, which is called corticosterone in mice.
That handful of genes will be placed in cell cultures or in mice.
In mice it slashed brain amyloid levels by 50%, and it boosted their ability to navigate mazes.
In mice, individuals are known to use this information when they are choosing mates presumably to avoid inbreeding.
It was discovered in the 1970s and named for its apparent ability to eradicate tumors in mice.
Much of the new evidence is based on studies in mice and anecdotal evidence in brain cancer.
Hange-koboku-to, a Kampo medicine, modulates cerebral levels of 5-HT (5-hydroxytryptamine), NA (noradrenaline) and DA (dopamine) in mice.
In a study in mice, they injected stem cells from bone marrow into skeletal muscles of limbs.
Receptors work the same way in humans, though we have fewer of them--350 compared with 1, 000 in mice.
The scientists examined the axonal response in mice that did not have c-Jun in their central nervous systems.
One possibility is that mTOR is turned on by starvation--which is another way to extend life in mice.
However, findings in mice do not always apply to people as there are many reasons for disrupted sleep.
Scientists at Harvard successfully used it to treat genetic liver disease in mice.
But Allison showed in 1996 that he could shrink tumors in mice by injecting them with antibodies to CTLA-4.
In mice, tumours disappeared in 10-14 days and the animals remained cancer-free thereafter.
Kameswari Konduri, an allergist at the Medical College of Wisconsin, found that inhaled D-4F helped treat asthma in mice.
In addition, scientists have been able to produce spongiform symptoms in mice injected with diseased brain matter from cows.
The gut infection Clostridium difficile can be defeated by a cocktail of rival good bacteria, experiments in mice show.
When the researchers disabled the gene in mice, they found these knockout mice were leaner than their unaltered counterparts.
Having proved that the technique works in mice, Dr Wu and Mr Pearl have now moved on to monkeys.
One year ago Elan researchers reported remarkable results of the vaccine in mice.
CNN: Health - Researchers describe new era in experimental chemical attacks on Alzheimer�� disease
应用推荐