News tagged with melanin
Iridescence found in 40-million-year-old fossil bird feather
Other Sciences / Archaeology & Fossils
Aug 26, 2009 |
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Known for their wide variety of vibrant plumage, birds have evolved various chemical and physical mechanisms to produce these beautiful colors over millions of years. A team of paleontologists and ornithologists ...
No longer a gray area: Our hair bleaches itself as we grow older
Biology /
Feb 23, 2009 |
4.6 / 5 (25) |
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Wash away your gray? Maybe. A team of European scientists have finally solved a mystery that has perplexed humans throughout the ages: why we turn gray. Despite the notion that gray hair is a sign of wisdom, these researchers ...
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, ...
Cellular Source of Most Common Type of Abnormal Heart Beat Found
Nov 02, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- While studying how the heart is formed, scientists at the University of Pennsylvania School of Medicine serendipitously found a novel cellular source of atrial fibrillation (AF), the most ...
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 ...
'Green' hair bleach may become environmentally friendly consumer product
Mar 24, 2009 |
5 / 5 (1) |
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Scientists from Japan today reported development of what could be the world's first "green" hair bleach, an environmentally friendly preparation for lightening the color of hair on the head and other parts ...
New tracer for better melanoma image
Chemistry / Analytical Chemistry
Oct 06, 2009 |
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The Australian research published this week in the American Chemical Society's Journal of Medicinal Chemistry describes a new radiopharmaceutical tracer that promises to give clearer pictures of melanoma and could lead t ...
Afib triggered by a cell that resembles a pigment-producing skin cell
Oct 12, 2009 |
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The source and mechanisms underlying the abnormal heart beats that initiate atrial fibrillation (Afib), the most common type of abnormal heart beat, have not been well determined. However, a group of researchers at the University ...
Melanin production discovered in fat tissue
Nov 06, 2008 |
4.5 / 5 (2) |
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A two-year study conducted by researchers at George Mason University, INOVA Fairfax Hospital and the National Cancer Institute may open the door to new therapies for combating chronic diseases associated with obesity, a condition ...
Fossil feathers preserve evidence of color
Biology /
Jul 09, 2008 |
4.8 / 5 (12) |
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The traces of organic material found in fossil feathers are remnants of pigments that once gave birds their color, according to Yale scientists whose paper in Biology Letters opens up the potential to dep ...
Traits produced by melanin may signal the bearer's capacity to combat free radicals
Oct 03, 2008 |
4.7 / 5 (3) |
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Some animal species have developed conspicuous traits produced by melanin pigments (for instance, dark manes in lions, black stripes in some birds and fishes). These traits are used as signals during contests for resources ...
