All Stories by John Travis
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Moms and pups sniff out immune genes
Genes involved in the immune system also create individualized body odors that allow parents and offspring to recognize each other.
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Genetic variation sways risk of diabetes
A gene carried by up to 85 percent of the people in the world increases susceptibility to diabetes by about 25 percent.
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Brain-Cell Loss Found in Narcolepsy
The puzzling sleep disorder known as narcolepsy stems from the destruction of a small group of brain cells.
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NIH OKs work on stem cells
The U.S. government opened the door for U.S. scientists to receive federal funding for research on stem cells from human embryos.
- Health & Medicine
Marrow converted into brain cells
Scientists can now efficiently transform bone marrow into nerve cells.
- Health & Medicine
Sperm just say NO to egg cells
Sperm fertilizing an egg produce a whiff of nitric oxide.
- Health & Medicine
Data faked in immune-system study
A researcher fabricated evidence suggesting that never-before-seen RNA-DNA-hybrid molecules play a role in creating antibodies.
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Tales from the crypts: Cells battle germs
Inhabiting tiny pits in the small intestine, so-called Paneth cells defend other cells in these crypts by discharging bacteria-killing bursts of enzymes and other molecules.
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Skin cells reveal they have hairy origins
The outer layers of the skin may spring from cells in hair follicles.
- Health & Medicine
Genes of cholera germ deciphered
The bacterium that causes cholera has nearly 4,000 genes on its two circular chromosomes.
- Health & Medicine
Microbes implicated in heart disease
Viruses and bacteria besides chlamydia may play a role in human heart disease through an immune reaction to a heartlike protein they produce.
- Health & Medicine
Antibiotic for Huntington’s disease?
In mice genetically engineered to develop an illness similar to Huntington's disease, the drug minocycline significantly delays the onset of symptoms and death.
