News tagged with pigmentation
Purple sweet potato means increased amount of anti-cancer components
Jun 29, 2009 |
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A Kansas State University researcher is studying the potential health benefits of a specially bred purple sweet potato because its dominant purple color results in an increased amount of anti-cancer components.
Skin color clue to nicotine dependence
May 08, 2009 |
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Higher concentrations of melanin -- the color pigment in skin and hair -- may be placing darker pigmented smokers at increased susceptibility to nicotine dependence and tobacco-related carcinogens than lighter skinned smokers, ...
Gene required for radiation-induced protective pigmentation also promotes survival of melanoma cells
Biology /
Nov 20, 2008 |
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Scientists have new insight into the response of human skin to radiation and what drives the most aggressive and deadly form of skin cancer. The research, published by Cell Press in the November 21st issue of the journal ...
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Color differences within and between species have common genetic origin
Oct 22, 2009 |
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(PhysOrg.com) -- Spend a little time people-watching at the beach and you're bound to notice differences in the amount, thickness and color of people's body hair. Then head to the zoo and compare people to chimps, our closest ...
New findings on the formation of body pigment
Oct 16, 2009 |
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(PhysOrg.com) -- The skin's pigment cells can be formed from completely different cells than has hitherto been thought, a new study from the Swedish medical university Karolinska Institutet shows. The results, which are published ...
Researchers untangle nature of 'regressive evolution' in cavefish
Biology /
Feb 15, 2007 |
4.3 / 5 (4) |
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"Regressive evolution," or the reduction of traits over time, is the result of either natural selection or genetic drift, according to a study on cavefish by researchers at New York University's Department of Biology, the ...
UT Southwestern plastic surgeons deploy new carbon dioxide-based fractional laser
Feb 13, 2008 |
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UT Southwestern Medical Center plastic surgeons are among a handful in the nation deploying a new type of laser that goes deeper into the skin to help reduce wrinkles, tighten surface structures and treat ...
Same genetic machinery generates skin color evolution in fish and humans
Biology /
Dec 13, 2007 |
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When humans began to migrate out of Africa about 100,000 years ago, their skin color gradually changed to adapt to their new environments. And when the last Ice Age ended about 10,000 years ago, marine ancestors of ocean-dwelling ...
Rare woodland plant uses 'cryptic coloration' to hide from predators
Nov 25, 2009 |
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It is well known that some animal species use camouflage to hide from predators. Individuals that are able to blend in to their surroundings and avoid being eaten are able to survive longer, reproduce, and ...
Carbon dioxide laser resurfacing may reduce wrinkles over long term
Jul 21, 2008 |
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Carbon dioxide laser resurfacing appears to be an effective long-term treatment for facial wrinkles, according to a report in the July/August issue of Archives of Facial Plastic Surgery.
New research finds way to restore colour to white hair following illness
Nov 13, 2008 |
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(PhysOrg.com) -- Scientists have discovered a way to potentially restore colour to white hair, new research in the British Journal of Dermatology reveals this month.
Genetic conflict in fish led to evolution of new sex chromosomes
Oct 01, 2009 |
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University of Maryland biologists have genetically mapped the sex chromosomes of several species of cichlid (pronounced "sick-lid") fish from Lake Malawi, East Africa, and identified a mechanism by which new ...
Ancient DNA reveals that some Neanderthals were redheads
Biology /
Oct 25, 2007 |
4.6 / 5 (36) |
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Ancient DNA retrieved from the bones of two Neanderthals suggests that at least some of them had red hair and pale skin, scientists report this week in the journal Science. The international team says that N ...
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