Humans
- Health & Medicine
Does lack of sleep lead to diabetes?
Lack of sleep makes healthy adults somewhat resistant to the effects of the hormone insulin, suggesting it could predispose people toward type II, or adult-onset, diabetes.
- Archaeology
Stone Age folk in Asia adapted to extremes
Preliminary evidence indicates that people occupied the harsh, high-altitude environment of Asia's Tibetan Plateau in the late Stone Age, between 11,000 and 12,000 years ago.
- Humans
Physicist steps up to be science adviser
President Bush has announced that he intends to nominate John Marburger, the head of Brookhaven National Laboratory, as his science advisor.
- Health & Medicine
Nicotine spurs vessel growth, maybe cancer
Test-tube and mouse experiments show that nicotine induces angiogenesis, the formation of new blood vessels.
- Health & Medicine
Have a heart: Turn on just a single gene
One gene appears to act as the master switch in embryonic heart formation.
- Health & Medicine
Vitamin E benefits cattle, too
Vitamin E aids immune system function and prevents growth declines in cattle, offering an alternative to potentially dangerous use of low-dose antibiotics.
- Health & Medicine
Insight into preemies’ blindness
Lack of a growth factor called IGF-1 has been implicated as a trigger for a disease that can cause vision problems, including blindness, in premature babies.
- Health & Medicine
Alzheimer’s damage might start off early
Copper and free radicals may initiate the brain damage of Alzheimer's disease long before its hallmark protein plaques have formed.
- Health & Medicine
Seemingly safer steroid mimics
A glucocorticoid mimic may offer the autoinflammatory effects of steroids with fewer side effects.
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- Health & Medicine
Saving fertility for cancer survivors?
A compound called sphingosine-1-phosphate preserves fertility in female mice given radiation treatment.
- Health & Medicine
Glucose control spares arteries in diabetes
Very strict control of blood glucose concentrations helps limit atherosclerosis formation in people with type I, or juvenile-onset, diabetes.
