Ray blockers Jul 23, 2007
It begins in the melanocytes, the cells that make pigment (melanin). The American Cancer Society estimates 59,940 people nationwide will be diagnosed with melanoma this year -- and 8,110 are expected to die. (Fresno Bee -- Local)
Scientists Make Strides Against Melanoma Jul 23, 2007
It begins in skin cells called melanocytes that produce melanin, the pigment that gives skin its natural color. Skin exposed to the sun causes melanocytes to produce more pigment, creating a sun tan. (Health-Finder)
Help Your Hair Beat Summer Heat Jul 17, 2007
The primary components of hair fiber, keratins (proteins) and melanin are hair's natural shields against UVA and UVB rays. While your skin can heal itself after exposure to UVA and UVB (skin is in a continuous state of renewal if you burn in the sun and peel afterwards, you know your skin will be back to a healthy condition in a few days), hair can't be spontaneously repaired. (CBS News -- Early Show)
TenthGate International, Inc. Featured in New Mexico Business Weekly Jul 9, 2007
Working with innovative technologies developed at the University of New Mexico School of Pharmacy by Dr. Graham Timmins, TenthGate's goal is to discover and understand the causation factors of melanoma skin cancer, using Electron Paramagnetic Resonance (EPR) diagnostics at the melanin free radical level to help guide us to specific prevention strategies. Initial technology benefits will be directed at product retailers and manufacturers who can provide a more exact description of the protective... (Primezone Releases)
TenthGate adds technology, jobs Jul 7, 2007
"It's like a small MRI machine to measure free radicals that affect melanin, or pigment, in skin," Timmins says. "Optical, or light-based, devices can only get about one-tenth of an inch into the skin, which is not enough to image melanoma. We can go much deeper to actually measure and image the free radicals that mutate the cells.". (New Mexico Business Weekly, NM)
Skin cancer exposed Jul 7, 2007
And many of us are not designed for it: we simply don't have the melanin to cope with UV radiation. Redheads and blonds with blue or green eyes are most at risk, but anyone, of any colour, can get melanoma. (Telegraph.co.uk)
Africa: Museveni Cautions On U.S. of Africa [document] Jul 5, 2007
They lost their melanin on account of living in areas with little sunshine. Melanin is for filtering out the harmful sun rays ... It is the melanin that gives us our black colour. (allAfrica.com)
Ask the experts Jul 3, 2007
"The skin color is produced by a pigment called melanin, [which is] produced by a specialized type of skin cell called a melanocyte, located in the upper layer of skin. The pigment absorbs ultraviolet (UV) radiation in sunlight, helping to protect the skin from cancer and aging changes. Ultraviolet light stimulates increased melanin production by the melanocytes. The deadly skin cancer, melanoma, is uncontrolled growth of these melanocytes," said Dr. Lewis Logan, a physician for University... (Daily Collegian, PA)
The deep, dark truth about tanning Jun 8, 2007
Those who tan easily or have dark pigmentation are less likely to develop skin cancer than people with light skin and less melanin to protect them, experts say. Research also shows that people who maintain a constant tan have less risk of melanoma, the deadliest form of skin cancer, than those with a history of sunburns. (Sun-Sentinel.com)
How sunburns work Jun 6, 2007
When a melanocyte detects ultraviolet light, it creates a brown pigment called melanin. Melanin, like sunscreen, absorbs ultraviolet light and protects your skin from damage ... So, why doesn't your skin produce melanin all the time to provide constant protection from sunburn. (Herald Online, SC -- Health)
Diagnosing skin cancers with light, not scalpels Jun 5, 2007
"What we're trying to do is find cancer signals they can get to without having to cut out the mole. "This is the first approach that can target molecules like hemoglobin and melanin and get microscopic resolution images the equivalent of what a doctor would see if he or she were able to slice down to that particular point," Warren said. The distributions of hemoglobin, a component of red blood cells, and melanin, a skin pigment, serve as early warning signs for skin cancer growth. But because... (EurekAlert!)
Living life with perseverance Jun 4, 2007
The disorder is characterized by birthmarks on the skin and melanin deposits within the central nervous system, according to the National Cancer Institute. Advertisement. (Santa Maria Times)
Why is Wollongong pronounced "Woollongong"? Jun 2, 2007
Melanin, nature's sunscreen, is the dark brown pigment. One explanation for the evolution of dark skin is that it stops the body's folate stores being destroyed by ultra-violet radiaton in sunshine. (Sydney Morning Herald -- Entertainment)
Dalton conquers cancer before baseball May 31, 2007
Fair-skinned people have less melanin in their skin, which means they have less protection against the sun. Anyone who had at least one severe, blistering sunburn as a child or teenager is more at risk. (Notre Dame Sports -- Rivals.com)
Do Fungi Feast on Radiation? May 26, 2007
Apparently, but only if they contain melanin, the chemical that serves as skin pigment in humans By David Biello ... RADIATION EATERS: New research may show that fungi with melanin the protective pigment in human skin thrive in the presence of ionizing radiation ... Like plants that grow toward the sun, dark fungi, blackened by the skin pigment melanin, gravitate toward radiation in contaminated soil. (Scientific American)
'Radiation-eating' Fungi Finding Could Trigger Recalculation Of Earth's Energy Balance And Help Feed Astronauts May 24, 2007
Those fungi able to "eat" radiation must possess melanin, the pigment found in many if not most fungal species. But up until now, melanin's biological role in fungi--if any--has been a mystery ... "Just as the pigment chlorophyll converts sunlight into chemical energy that allows green plants to live and grow, our research suggests that melanin can use a different portion of the electromagnetic spectrum--ionizing radiation--to benefit the fungi containing it," says Dr. Dadachova. (Science Daily)
Dark skin not guaranteed protection May 24, 2007
Dark skin has higher amounts of melanin that can filter as much as twice the amount of ultraviolet radiation as paler skin. But that protection still falls short of what doctors recommend when using sunscreen: a skin protection factor, or SPF, of 15 or more. (Atlanta Journal-Constitution)
Tanning and p53 May 24, 2007
More recently about 1 million years ago a tanning response evolved in our hominid ancestors, in which the accumulation of melanin granules in keratinocytes provides physical protection against the DNA-damaging effects of sunlight. The tanning response to "sunseeking" behavior. (New England Journal of Medicine)
Hungry fungi chomp on radiation May 23, 2007
Ekaterina Dadachova and her colleagues at the Albert Einstein College of Medicine in New York have discovered that some fungi can use a molecule called melanin, a pigment also found in human skin, to harvest the energy from radiation and use it for growth ... Since the 1986 meltdown, at the Chernobyl Atomic Energy Station, the numbers of 'black fungi', rich in melanin, have risen steeply ... These fungi also tend to produce the pigment melanin, which is thought to protect fungi from a range of... (Nature News Service)
Fungi Gobble Radiation to Grow, Study Says May 23, 2007
Three species of fungi containing the black pigment melanin a substance also present in human skin grew larger and faster when exposed to high levels of radiation, even when deprived of nutrients ... In addition to the faster fungal growth, the researchers noted changes in the electrical structure of the melanin exposed to radiation ... "We have associated the faster growth caused by radiation with melanin a phenomenon suggesting that the pigment is somehow involved in harvesting high-energy... (National Geographic)
Melanoma rates found to be higher in Oregon May 19, 2007
Melanoma is a malignant tumor that originates in melanocytes, the cells that produce the pigment melanin, which colors the skin, hair and eyes. Melanoma can advance and spread to other parts of the body and becomes difficult to treat when it does, according to the Skin Cancer Foundation. (U-Wire.com)
Are human beings genetically programmed to seek the sunshine? May 14, 2007
Evolution might have favored this because, by making sunning pleasurable, the body increases production of melanin, the pigment that makes the skin tan. People who can tan have a much lower risk of skin cancer, including melanoma, than non tanners. (Boston Globe)
A Strand of Hair May Reveal Cancer Risk May 10, 2007
NEW YORK (Reuters Health) - Measuring the amount of melanin in a hair sample independently predicts an individual's risk for melanoma, according to a report in the May 15th issue of the American Journal of Epidemiology. Melanin is a natural substance that gives color to the hair, skin and iris of the eye, and also protects the skin from damaging rays of the sun ... Determining the amount of melanin as an indication of an individual's skin type could be used to advise patients how often they... (MEDLINEplus)
Babies' vision, changing eye color May 9, 2007
When a baby is first born, the eye still has not fully developed a dark pigment known as melanin that helps olor eyes and skin. Blue or gray eyes, which Caucasian babies have at birth, in a newborn mean that melanin is virtually absent with the eye's colored portion or iris ... It's possible that having darker eyes and skin represents a higher amount of melanin and pigmentation, which may help protect eyes against eye diseases such as age-related macular degeneration. (Auburn Citizen, NY)
The skinnyon skin cancer May 9, 2007
In an effort to protect itself from further damage, the skin cells produce a pigment called melanin, which darkens the skin ... Darker-skinned people have higher levels of melanin, the natural chemical that gives skin its pigment ... Melanin helps repel UV rays, so the more you have naturally, the more protected you are. (San Diego Union-Tribune)
Rare 'Gene-for-gene' Interaction Helps Bacteria Kill Their Host May 6, 2007
As part of their innate immune system, insects use an enzyme called phenoloxidase to produce reactive molecules that kill bacteria and then encapsulate them in a dense coat of black pigment called melanin. The researchers found that Photorhabdus produces a special phenoloxidase inhibitor to protect itself against this particular defence. (Science Daily)
Weekend Guide Mar 29, 2007
RELATIVITY Cassandra Medley's drama that looks at the family interaction when the daughter, who is a scientist, finds herself at odds with her mother's theory about melanin. Kuntu Repertory Theater, University of Pittsburgh, Alumni Hall, 7th Floor, Oakland. (Pittsburgh Post-Gazette, PA)
A Protein Twofer That Triggers Tanning and Protects against Skin Cancer Mar 12, 2007
The researchers report in Cell that when p53 is activated (in response to DNA damage caused by the sun's ultraviolet (UV) rays and other factors), it triggers production of alpha-MSH, a hormone that then prompts production of melanin, or pigment ... In work published last year, the Dana-Farber group found that alpha-MSH, needed to induce melanin production, does not come from melanocytes (melanin-producing cells in the skin) ... "Once you have that tan, your DNA is better protected for the next... (Scientific American)
Before Hillary: Five women who dared to dream of the presidency Mar 12, 2007
Quote: I was the first American citizen to be elected to Congress in spite of the double drawbacks of being female and having skin darkened by melanin. When you put it that way, it sounds like a foolish reason for fame. (La Crosse Tribune, WI)
Protein found to tan skin and protect it from skin cancer Mar 12, 2007
Alpha-MSH is a peptide hormone that stimulates the production and activation of the pigment melanin. Any naturally occurring dark pigments found in skin and hair of humans and fur and feathers of animals is called melanin ... You said that alpha-MSH makes melanin, but alpha-MSH, as a hormone, can't make anything. (iTWire)
Several Women Have Come Close to Taking the Oval Office Mar 9, 2007
Quote: "I was the first American citizen to be elected to Congress in spite of the double drawbacks of being female and having skin darkened by melanin. When you put it that way, it sounds like a foolish reason for fame. In a just and free society it would be foolish.". AP PHOTO/FILE/CHARLES KRUPA Former Democratic Rep. (The Ledger)
Who deserves a statue at the state Capitol? Mar 4, 2007
As you well know, it s not a function of melanin content. Blackness, for lack of a better word, is about being able to relate to various common threads in our culture, having an understanding of our accomplishments and challenges, and exemplifying a willingness to work to leave things better than the way we found them. (Atlanta Journal-Constitution -- Opinion)
Taking care of brown skin Feb 27, 2007
More melanin, or brown skin pigment, resulting in a warmer skin shade. Fewer visible signs of aging, such as deep wrinkles, fine lines and sun spots. (The Clarion-Ledger)
Tanning has a dark side Feb 20, 2007
Producing melanin, a pigment found in darker skin that absorbs UV rays, is the only natural method of protection against the sun, Lowe said. For instance, a dark-skinned person would have a relatively higher amount of melanin in her or his skin and thus a higher level of natural protection. (Daily Iowan, IA)
WonderQuest: Swimming in octopus questions, sizing women up Feb 20, 2007
The plume is actually red, and made of melanin (the same dye that colors our hair and skin) but looks dark in the sea's dim lighting and when concentrated. Also, red light looks gray since water absorbs its long-wavelength light. (USA Today -- Tech)
Study Confirms Link Between Hormone, Insulin-Producing Cells Feb 9, 2007
FRIDAY, Feb. 9 (HealthDay News) -- A neuropeptide called melanin concentrating hormone (MCH) plays a role in the growth of insulin-producing beta cells in the pancreas and the secretion of insulin, a new study finds. MCH is found in the brain and regulates energy balance and appetite. (Health-Finder)
20 Things You Didn't Know About... Skin Feb 7, 2007
15 White skin appeared just 20,000 to 50,000 years ago, as dark-skinned humans migrated to colder climes and lost much of their melanin pigment. 16 I see very, very white people: Albinos are often cast as movie villains, as seen in The Da Vinci Code, Die Another Day, The Matrix Reloaded, and inexplicably the 2001 flick Josie and the Pussycats. (Discover Magazine)
New drug gives relief for breast cancer sufferers Feb 3, 2007
The cutting-edge SIAscope helps doctors distinguish malignant from benign skin lesions on the spot by assessing colour, melanin and collagen levels. High-profile GP Kerryn Phelps has installed the scanner in her Surry Hills practice, becoming one of eight medical centres in NSW to have done so. (Sydney Morning Herald -- Australia)
Appetite Hormone: Findings May Lead To Treatments That Stimulate Insulin Production Jan 28, 2007
A new Joslin Diabetes Center-led study has shown conclusively that a neuropeptide, melanin concentrating hormone (MCH), found in the brain and known for its role in increasing appetite in people, plays a role in the growth of insulin-producing beta cells and the secretion of insulin. This finding has the potential to spur the development of new treatments for diabetes that stimulate the production of insulin-producing beta cells in the pancreas. (Science Daily)
Joslin-led study uncovers role of appetite hormone MCH in insulin production Jan 26, 2007
BOSTON Jan. 25, 2007 -- A new Joslin Diabetes Center-led study has shown conclusively that a neuropeptide, melanin concentrating hormone (MCH), found in the brain and known for its role in increasing appetite in people, plays a role in the growth of insulin-producing beta cells and the secretion of insulin. This finding has the potential to spur the development of new treatments for diabetes that stimulate the production of insulin-producing beta cells in the pancreas. (EurekAlert!)
Where do you stand? Jan 23, 2007
I suggest that rather than winging on this forum, you ensure your kids actually have something going for them other than the colour of their skin, so that they dont have to develop their entire identity around something as insignificant as their shade of melanin. Posted by: S at January 22, 2007 1:28 PM. (Sydney Morning Herald -- Australia)
Jamaican authorities campaign against skin bleaching among youth Jan 22, 2007
The focus will be on products that contain hydroquinone, a substance that reduces the melanin growth in the skin, Dalley said. Hydroquinone is also used as a developing agent in photography and as an antioxidant in rubber and food, according to the U.S. Environmental Protection Agency. (International Herald Tribune)
From explosives to bitter cold Jan 17, 2007
And the scar tissue doesn't possess the melanin to protect him against he sun. So he must cover his exposed skin to protect against sun and cold. (Wood River Journal, ID)
Stem cells, on stage Jan 13, 2007
D. candidate in at the University of Toronto and , studying signaling pathways involved in melanin synthesis and transport. Photography by John Currid, on Homepage Pictured: Joan Gregson as Nell Harrier and Philippa Domville as Clare McGuire. (The Scientist)
Fast growing melanomas have distinct traits Jan 5, 2007
As well as being more likely to be symmetrical, symptomatic, and elevated, these lesions were also likely to have regular borders and lack the pigment melanin. "The current early detection program has done a good job promoting features of the common and less aggressive type of melanomas," continued Liu. (Scientific American)
Giving in to the gray Jan 4, 2007
Gray hair is a natural result of aging (melanin production wanes as pigment cells in hair follicles die over time), and Weaver says most women have a handful of gray streaks by the time they turn 25. "As a woman ages, it's a good idea to soften the hair," she said. (Orlando Sentinel)