Vidyya Medical News Service
Volume 5 Issue 168 Published - 14:00 UTC 08:00 EST 17-June-2003 Next Update - 14:00 UTC 08:00 EST 18-June-2003
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Body's internal clock is set by newly discovered light detection system in the eye
The new brightness detector system is based upon a molecule sensitive to blue light called opsin, which is quite different from the opsin proteins used in the rods and cones of the eye. The team also found that melanopsin, a recently identified protein, is critical for this brightness detector system to work.  more

Key digestive role found for 'silent killer'
A colorless, odorless gas that kills more than 500 Americans each year plays an important role in maintaining healthy digestion, according to findings of a Mayo Clinic study published Tuesday in Proceedings of the National Academy of Sciences.  more


Inherited gene may place some at higher risk of post-traumatic injury seizures
People who inherit a particular gene involved in lipid metabolism in the brain appear to be at higher risk of developing seizures after traumatic brain injury, according to researchers at UT Southwestern Medical Center at Dallas.  more

Immune history and the response to a donated tissue transplant
Little is known about the effect of an individual's immune history and their response to a donated tissue transplant. An important study by researchers at Emory University in Atlanta, Georgia, reveals that individuals harboring virally-induced memory T cells that are cross reactive with donor antigens are resistant to conventional strategies designed to induce transplant tolerance. more

The puberty, obesity, breast cancer link
A new Cincinnati Children's Hospital Medical Center study underscores the link between early onset of puberty and obesity, and it provides the first suggestion of an increased risk of breast cancer for young girls whose first outward indicator of entering puberty is breast development more

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