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Melanin (Greek μέλας, black; melanin) is a class of compounds found in the plant, animal, and protista kingdoms, where it serves predominantly as a pigment. The class of pigments are derivatives of the amino acid tyrosine. Many melanins are insoluble salts and show affinity to water.Fact: date=March 2009 The most common form of biological melanin is eumelanin, a brown-black polymer of dihydroxyindole, dihydroxyindole carboxylic acid, and their reduced forms. Another common form of melanin is pheomelanin, a red-brown polymer of benzothiazine units largely responsible for red hair and freckles. The presence of melanin in the archaea and bacteria kingdoms is an issue of ongoing debate amongst researchers in the field. The increased production of melanin in human skin is called melanogenesis. It is stimulated by the DNA damages that are caused by UVB-radiation, and it leads to a delayed development of a tan. This melanogenesis-based tan takes more time to develop, but it is long lasting.

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Blogs for Melanin

Melanin Reduction Experts,Research on skin lightening

Weight Loss Tips Blog. Get Rid of Hyperpigmentation in 28 days ... Melanin: Aging of the Skin and Skin Cancer. What You Eat Affects How You Breathe ...spotremoving.blogspot.com/

Miss Melanin on Blog Talk Radio

Miss Melanins profile on Blog Talk Radio - the leading talk radio network with thousands of shows ... recent episode player to virtually any blog or web site. ...www.blogtalkradio.com/Miss-Melanin

BrothersJudd Blog: W + A DASH OF MELANIN:

... brothersjudd.com. Home. Reviews. Blog. Daily. Glossary. Orrin's Stuff ... blog comments powered by Disqus " TAUNTING THE LEFT: | Main | COULDN'T BE SIMPLER: ...brothersjuddblog.com/archives/2008/12/w_a_dash_of_melanin.ht...

Retrospectacle: A Neuroscience Blog : Melanin Helps Blacks Hear Better ...

Blog Hiatus Until March 1st. Now, Take Your Drugs Aurally. And the Winner is. ... I believe that the melanin prevents harmful chemicals from getting into the ...scienceblogs.com/retrospectacle/2006/06/melanin_helps_blacks...

melanin

Blog under the Creative Commons Attribution 3.0 License. Site Admin and Login. Register ... Categories: bioremediation · fungi · melanin ...fungalgenomes.org/blog/category/melanin/

Wikipedia About Melanin

Melanin (Greek μέλας, black; melanin) is a class of compounds found in the plant, animal, and protista kingdoms, where it serves predominantly as a pigment. The class of pigments are derivatives of the amino acid tyrosine. Many melanins are insoluble salts and show affinity to water.Fact: date=March 2009 The most common form of biological melanin is eumelanin, a brown-black polymer of dihydroxyindole, dihydroxyindole carboxylic acid, and their reduced forms. Another common form of melanin is pheomelanin, a red-brown polymer of benzothiazine units largely responsible for red hair and freckles. The presence of melanin in the archaea and bacteria kingdoms is an issue of ongoing debate amongst researchers in the field. The increased production of melanin in human skin is called melanogenesis. It is stimulated by the DNA damages that are caused by UVB-radiation, and it leads to a delayed development of a tan. This melanogenesis-based tan takes more time to develop, but it is long lasting.

The photochemical properties of melanin make it an excellent photoprotectant. It absorbs harmful UV-radiation and transforms the energy into harmless amounts of heat through a process called "ultrafast internal conversion". This property enables melanin to dissipate more than 99.9% of the absorbed UV radiation as heat and it keeps the generation of free radicals at a minimum (see photoprotection). This prevents the indirect DNA damage which is responsible for the formation of malignant melanoma.

Melanin in humans

In humans, melanin is the primary determinant of human skin color and also found in hair, the pigmented tissue underlying the iris, the medulla and zona reticularis of the adrenal gland, the stria vascularis of the inner ear, and in pigment-bearing neurons within areas of the brain stem, such as the locus ceruleus and the substantia nigra.

Dermal melanin is produced by melanocytes, which are found in the stratum basale of the epidermis. Although human beings generally possess a similar concentration of melanocytes in their skin, the melanocytes in some individuals and ethnic groups more frequently or less frequently express the melanin-producing genes, thereby conferring a greater or lesser concentration of skin melanin. Some individual animals and humans have very little or no melanin in their bodies, a condition known as albinism.

Because melanin is an aggregate of smaller component molecules, there are a number of different types of melanin with differing proportions and bonding patterns of these component molecules. Both pheomelanin and eumelanin are found in human skin and hair, but eumelanin is the most abundant melanin in humans, as well as the form most likely to be deficient in albinism.

Eumelanin polymers have long been thought to comprise numerous cross-linked 5,6-dihydroxyindole (DHI) and 5,6-dihydroxyindole-2-carboxylic acid (DHICA) polymers; recent research into the electrical properties of eumelanin, however, has indicated that it may consist of more basic oligomers adhering to one another by some other mechanism. Thus, the precise nature of eumelanin's molecular structure is once again the object of study. Fact: date=May 2007 Eumelanin is found in hair and skin, and colors hair grey, black, yellow, and brown. In humans, it is more abundant in peoples with dark skin. There are two different types of eumelanin, which are distinguished from each other by their pattern of polymer bonds. The two types are black eumelanin and brown eumelanin, with black melanin being darker than brown. Black eumelanin is in mostly non-Europeans and aged Europeans, while brown eumelanin is in mostly young Europeans. A small amount of black eumelanin in the absence of other pigments causes grey hair. A small amount of brown eumelanin in the absence of other pigments causes yellow (blond) color hair.

Search results for Melanin

Melanin - Psychology Wiki

Broadly, melanin is any of the polyacetylene, polyaniline, and polypyrrole " ... Melanin is the primary determinant of human skin color. ...psychology.wikia.com/wiki/Melanin

Black skin 'could fight disease'

Melanin is a sticky molecule - bacteria and fungi get all tangled up and it ... Research has also shown that melanin is actually a poor "sunscreen" and does not ...cogweb.ucla.edu/ep/Melanin.html

melanin - Definition from the Merriam-Webster Online Dictionary

Definition of melanin from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.www.merriam-webster.com/dictionary/melanin

Melanin; Sunglasses; Ultraviolet Light Eye Damage; Optometry

Nature uses melanin to protect our tissue from sunlight damage. We are born ... Scientists believe that melanin serves another important protective role by ...www.agape1.com/melanin.htm

Melanin - Personal Care Shopping.com

Find Melanin and more Personal Care items at Shopping.com. Shop online and compare prices. Shopping made simple.www.shopping.com/xGS-Melanin

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News about Melanin

PETALING JAYA:

The New Straits TimesWomen who shield the sun from their skin with creams and lotions will probably be more likely to develop osteopherosis later in life.http://www.nst.com.my/Current_News/NST/Saturday/National/255...

Biocides inducing resistance in Lascaux cave’s microbes

Science NewsStudy makes researchers wonder whether they should treat fungus or nothttp://www.sciencenews.org/view/generic/id/43632/title/Bioci...

The New GOP: Guns, Gays, God, & Go home!

La Prensa San DiegoAs the Republican Party continues to be soundly rejected by the U.S. electorate at the polls, some of its leaders have decided that the Party of Lincoln needs an extreme makeover.http://www.laprensa-sandiego.org/current/New.GOP.050809.htm

City swingers

The Globe and MailThe civilized pastime of croquet has come out of the country club and into urban parks, where black-clad hipsters wield a mallet in one hand, a beer can in the otherhttp://www.theglobeandmail.com/servlet/story/RTGAM.20090508....

Cold fails to kill deadly fungus found in Island parks

Victoria Times ColonistThe cold winter weather did not suppress a deadly fungus found in popular outdoor recreation spots that has killed about 12 British Columbians since being discovered on Vancouver Island 10 years ago.http://www.timescolonist.com/Cold+fails+kill+deadly+fungus+f...

News about Melanin

City swingers

Globe and MailFor these melanin-deficient apartment dwellers, croquet is a laid-back alternative to the summer volleyball scene. "We're not beach people," says club co-founder Bobbi Schell, taking a swig of red wine out of a plastic beverage container. "And we're ... http://www.theglobeandmail.com/servlet/story/RTGAM.20090508....

Hair gone white? You're bio-bleaching your hair, experts say

EarthtimesWith advancing age, hydrogen peroxide builds up in larger amounts in the hair follicle and ultimately inhibits the synthesis of the colour pigment melanin," he says." It is all very natural and scientists have long known that hydrogen peroxide or H2O2 ... http://www.earthtimes.org/articles/show/267197,hair-gone-whi...

Mibelle Debuts Spot Solution

HappiDelentigo, the latest ingredient developed by Mibelle Biochemistry, treats age spots or uneven skin tone, shaded areas formed by a local overproduction of the two pigments, melanin and lipofuscin. In a clinical trial, a test cream with Delentigo was ... http://www.happi.com/articles/2009/05/suppliers-corner

Album Review: Company Flow's 'Funcrusher Plus' reissue

Los Angeles Times BlogsIndeed, two years before “The Slim Shady LP” had the mainstream media myopically proclaiming Marshall Mathers' monopoly on maladjusted melanin-deficient rap, El-P set the benchmark for sardonic Caucasian critique.  If the Beastie Boys were ... http://latimesblogs.latimes.com/music_blog/2009/05/album-rev...

The New GOP: Guns, Gays, God, & Go home!

La Prensa San DiegoThese same observers are quick to note that President Barack Obama is but the latest steward – with melanin – for the military-imperial interests that control the nation. While true that change does not occur overnight, there is little doubt that ... http://www.laprensa-sandiego.org/current/New.GOP.050809.htm

Search results for Melanin

melanin - definition of melanin in the Medical dictionary - by the ...

melanin /mel·a·nin/ (mel´ah-nin) any of several closely related dark pigments of the skin, hair, choroid coat of the eye, substantia nigra, and various tumors, produced by ... http://medical-dictionary.thefreedictionary.com/melanin

Melanin Definition | Definition of Melanin at Dictionary.com ...

Copy & paste this link to your blog or website to reference this pagehttp://dictionary.reference.com/browse/melanin?o=0

Hair pigmentation melanin and hair color

The World of Hair an on-line reference by Dr. John Gray, provided by the P&G Hair Care Research Center. For more beauty science, please visit www.pg.comhttp://www.pg.com/science/haircare/hair_twh_59.htm

melanin: Definition from Answers.com

melanin n. Any of a group of naturally occurring dark pigments, especially the pigment found in skin, hair, fur, andhttp://www.answers.com/topic/melanin

melanin partnership

The Melanin Partnership is a think-do tank that supports and facilitates ground-up community action in the areas of youth, sustainability and communications.http://melaninpartnership.com

Wikipedia results for Melanin

Melanin - Wikipedia, the free encyclopedia

Melanin (Greek μέλας, black; pronounced /ˈmɛ lə nɪn/ melanin (help · info)) is a class of compounds found in the plant, animal, and protista kingdoms, where it serves ... http://en.wikipedia.org/wiki/Melanin

Human skin color - Wikipedia, the free encyclopedia

Human skin colour can range from almost black (due to very high concentrations of the dark brown pigment melanin) to nearly colorless (appearing reddish white due to the blood ... http://en.wikipedia.org/wiki/Skin_color

Melanin theory - Wikipedia, the free encyclopedia

Melanin theory is a pseudoscientific theory, founded in the distortion of known physical properties of melanin, a natural polymer. The theory posits the inherent superiority of ... http://en.wikipedia.org/wiki/Melanin_Theory

Melanocyte - Wikipedia, the free encyclopedia

The melanin is in organelles called "melanosomes", that are organized as a cap protecting the nucleus of the keratinocyte. When ultraviolet rays penetrate the skin and damage DNA, ... http://en.wikipedia.org/wiki/Melanocyte

Melanin-concentrating hormone receptor - Wikipedia, the free ...

Two Melanin-concentrating hormone receptors (MCHR) have recently been characterized: MCH-R1 and MCH-R2. These two receptors share approximately 38% homology.http://en.wikipedia.org/wiki/Melanin-concentrating_hormone_r...
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Videos found for Melanin

THE MATRIX, MELANIN, THE BLACK DOT ...

THE MATRIX, MELANIN, THE BLACK DOT AND MIND CONTROL DR PHIL VALENTINE PT 15Dr. Phil Valentine Breaking Down the Matrix Movie and How It Relates to Your Melanin, Consciousness, Being and Mind Control. Hotep, Enjoy and Learn!Flash - Video

Ms. Melanin (A Dedication to the So...

Ms. Melanin (A Dedication to the Soul Divas)A beautiful spoken word and neo soul fusion video with poet Kamal Imani blessing and uplifting the ladies. Nice scenery and beautiful model.MPEG 4 - Video

Miss Melanin

Miss MelaninMiss Melanin featuring Kamal ImaniVideo - Video

Dedication to My African Sisters: "...

Dedication to My African Sisters: Dedication to My African Sisters: "Ms. Melanin"Flash - Video

Melanin Site

Melanin SiteCheck out the upoming site for the film shoot...Flash - Video

Answers for Melanin

x yHow to reduce melanin and get rid of skin tan?x yIf you want dramatic results overnight, you would have to opt for surgical procedures and look like Michael Jackson. Else, here's what you can do. Avoid sun exposure and start using sunscreen every...AvaWhat is the health disadvantage to having extra melanin in your body?AvaAs a component in the skin it protects against uv damage leading to skin cancer and also premature aging of the skin, this should be listed in the physiology text, check the index.astra.marisIs the melanin produced in or skin permanently there?astra.marisThe amount of melanin in your skin is what determines your skin color: whether you're very fair, very medium or very dark, depending on your genetic racial heritage. It's also what provides you protec...lilmissperfectHow do to know which self tanners boost your melanin production and which dye your skin?lilmissperfectWhen youre born, you produce a set amount of melanin. Unless you have a vitiligo, I dont think anything can change it.nanae sHow do I get rid of the moles or melanin stains on my skin?nanae sFunny - I was just answering another person's question about a totally different topic and ended up recommending drinking green smoothies (greens like romaine put in a blender with fruits and water - ...
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