Teeth: a future renewable natural resource?

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Most vertebrates have continuous tooth generation, meaning that lost teeth are replaced with new teeth. Mammals, however, including humans, have teeth that are generally only replaced once, when milk teeth are replaced with permanent teeth.


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All News summaries for November 21, 2006

Researchers disprove long-standing belief about HIV treatment

12 minutes ago | User rating: not rated yet
Researchers at Wake Forest University Baptist Medical Center have disproved a long-standing clinical belief that the hepatitis C virus slows or stunts the immune system's ability to restore itself after HIV patients are treated ...

Gummy bears that fight plaque

22 minutes ago | User rating: not rated yet
The tooth-protecting sugar substitute xylitol has been incorporated into gummy bears to produce a sweet snack that may prevent dental problems. Research published today in the open access journal BMC Oral Health describes ...

Food industry bitten by its lobbying success

43 minutes ago | User rating: not rated yet
(AP) -- One of the worst outbreaks of foodborne illness in the U.S. is teaching the food industry the truth of the adage, "Be careful what you wish for because you might get it."

Study shows why cigarette smoke makes flu, other viral infections worse

12 hours ago | User rating: not rated yet
A new study by researchers at Yale School of Medicine could explain why the cold and flu virus symptoms that are often mild and transient in non-smokers can seriously sicken smokers. Published in the Journal of Clinical ...

Mindfulness meditation slows progression of HIV, study shows

12 hours ago | User rating: not rated yet
CD4+ T lymphocytes, or simply CD4 T cells, are the "brains" of the immune system, coordinating its activity when the body comes under attack. They are also the cells that are attacked by HIV, the devastating virus that causes ...