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18-Jun-2001
Genes and proteins
DOE/Oak Ridge National Laboratory
Consider a living cell, the fundamental unit of life. Each human cell contains the entire
human genome—some 35,000 genes. But only some genes are expressed within a
specific cell, resulting in the production of specific proteins. The genes that turn on in a
liver cell, for example, are different from the genes that are expressed in a brain cell.
18-Jun-2001
Searching for mouse models of human
DOE/Oak Ridge National Laboratory
Mutant mice are tested by ORNL researchers and their collaborators to determine if these
mice have diseases similar to those that afflict humans. Therapies tried on mouse models
could lead to new medical treatments.
18-Jun-2001
Gene chip engineers
DOE/Oak Ridge National Laboratory
At ORNL, microarrays are being made faster and cheaper to study gene expression in cells
from mice, fish, and other organisms.
18-Jun-2001
MicroCAT 'sees' hidden mouse defects
DOE/Oak Ridge National Laboratory
ORNL's X-ray computed tomography system allows internal defects and organ changes in
small animals to be mapped.
18-Jun-2001
Obesity-related gene in mouse discovered at ORNL
DOE/Oak Ridge National Laboratory
Some mice born at ORNL have grown dangerously fat, even though they have been on
a low-fat diet since birth. Although they do not appear overweight, these mice have a
mutated gene that plays a strong role in causing obesity in the form of internal fat
deposits that are hazardous to their health.
18-Jun-2001
Curing cancer in mice
DOE/Oak Ridge National Laboratory
ORNL researchers have shown that a radioisotope-bearing antibody can target the blood
vessels of lung tumors in mice, destroying the tumors.
18-Jun-2001
Complex biological systems in mice
DOE/Oak Ridge National Laboratory
Using genetic engineering, gene microarrays, and computational technologies, ORNL
researchers are deciphering genetic variations in the skin that lead to increased risk of
disease from environmental factors.
18-Jun-2001
Search for signs of inflammatory disease
DOE/Oak Ridge National Laboratory
You fall on your shoulder and tear some cartilage, causing bone to rub against bone.
Your shoulder becomes inflamed and begins to hurt because cytokine, a small signal
protein secreted by your immune system, has recruited white blood cells to clean up the
damage.
18-Jun-2001
Mouse models for the human disease of chronic hereditary tyrosinemia
DOE/Oak Ridge National Laboratory
When a section of mouse chromosome 7 containing the coat color c gene is deleted by
exposing mice to radiation, "albino" mice are born with a white, hairless coat.