You're now dealing with substances so small they can target cells or organs without damage to surrounding tissue.
These iPS cells, like stem cells derived from embryos, can be turned into many different kinds of cells, and researchers believe they eventually could be used to regenerate tissue for organs and repair damage.
This can stop oxygen getting through, and cause damage to organs, or in some cases, strokes.
These delicate organs are easy to damage and can be subject to infection.
Without her bladder functioning properly, she could get urinary sepsis that could damage the organs and end in renal failure.
This can damage the internal organs and lead to kidney failure and death.
They can irritate the eyes, skin and respiratory system and cause vomiting, diarrhea, tremors, convulsions and permanent damage to internal organs.
This allows the tissues to recover, alleviating damage to the organs.
Versicor brought to the table a host of interesting programs early in the research pipeline and an antifungal drug, anidulafungin, which is now being evaluated by the FDA to treat invasive fungal infections that can damage the internal organs of patients with already compromised immune systems.
"In his current condition, his internal organs haven't received any serious damage, " Zhao said.
We've known for some time that lead is a potent neuro-toxin that can cause significant damage to a number of organs in the body, including the central nervous system, and can lead to behavioural problems in children.
Arsenic can damage most of the body's major organs and the immune system.
By disturbing the body's equilibrium, anabolic steroids can potentially cause damage to many of the body's major organs, particularly the liver, which has to deal with breaking down the compound.
Noah won its case, Dr Menache said, by basing it on actual autopsies of birds that had been force-fed to prove the damage to their digestive system, throat and other organs.
Dr Lawrence Whalley of the University of Aberdeen, who led the research, said the explanation could be that smoking causes oxidative stress - cumulative damage caused by molecules called "free radicals" - to organs including the brain.
And like the treatment of appendicitis, most of the offending organs of television economics should be removed from the air before they can do any fatal damage.
"For 80 percent of the common chemicals in everyday use in this country we know almost nothing about whether or not they can damage the brains of children, the immune system, the reproductive system, and the other developing organs, " said Dr. Phil Landrigan, a pediatrician and director of the Children's Environmental Health Center at Mount Sinai School of Medicine.
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