Hyperpigmentation Research Paper

It develops in the melanocytes, which are cells that produce melanin that gives the skin its pigment or color and protects tissues from ultra violet radiation. Dark skinned people have more melanin than light skinned people do. For this reason, Melanomia is more frequent in light skinned people. (“Detailed description “, 2000, P.2

Melanoma is caused by over exposure to UV which can sometimes cause sunburn, it can be especially critical to those whom are inclined to the disease itself. The tumours derive in the pigment-producing melanocytes which are inside the basal layer of the

The basic component in tanning is ultraviolet light. Ultraviolet light, whether produced by a tanning unit or by the sun, contains two components; UVA and UVB. These are the two types of ultraviolet radiation that are known to negatively effect the skin. UVA has a longer wavelength that causes photoaging and can produce some melanomas. UVB has a shorter wavelength that also causes photoaging and has been implicated in skin cancers. Photoaging is the premature aging or deep wrinkling of skin. Indoor tanning units utilize both forms of light waves to tan a person with a minimized risk of sunburn. Tanning outdoors does not give you this option because the sun omits every type of UV rays, so a person is more likely to burn. A person’s skin epidermis consists of two layers: The germinative layer and the horny layer. Another name for the germinative layer is the “living layer.” And another name for the horny layer is the “dead” layer. When exposed to ultraviolet light, melanocytes in the germinative layer produce melanin that is absorbed by surrounding cells. Melanin is a dark pigment found in the pigment-bearing cells of the skin, and melanocytes are epidermal cells capable of synthesizing melanin. This creates a protective barrier from ultraviolet light reaching deeper into the layers of the skin. The pale pink melanin granules are stored in the core of keratin cells. UVA darkens the melanin,

Have you ever felt the “false sense of security that [you] may not feel under direct sunlight” from a tanning bed (Jeffrey)? Your body relaxes, you feel serene, and you get a golden glow. Some teens strive for this feeling...and the tan. Tanning is the skin's response to injury, according to Arielle Kauvar, M. D. The exposure of UV rays over time can cause skin cancer. Skin cancer is the growth of abnormal growth of skin cells that forms in the tissue of the skin (Skin Cancer). Melanoma, the most dangerous type of skin cancer, can come from UV rays. From 1998- 2008, the number of cases of Melanoma has increased by about

An example of an area would be in the European areas, where the UV radiation doesn’t beam down as strong onto our skin. If it was another hot open area such as Australia then the skin pigmentation stayed darker. In short, the skin pigmentation adapted to the lifestyle and the surround environment to better help survive in that climate. This is due to the body producing more melanin so the effects of the sun’s rays can be counteracted. Through generations successful genes are passed through the blood line, the human body also has a tendency to produce a particular amount of melanin depending on the location of where one

lifetime to ultraviolet light can cause Squamous Cell Carcinoma. It can occur in different areas of

Two times of melanin are produced within the body, one is called eumelanin and it is responsible for the golden brown color we normally associate with tanning. Another pigment is called pheomelanin and it produces a red color. Redheads and blondes produce more pheomelanin and less eumelanin, which is why they don't tan as well. Sunlight and ultraviolet rays affect the pituitary gland, a gland at the base of the brain that secretes hormones, which then produces melanocyte-stimulating hormone. This hormone flows through the bloodstream to the melanocytes, which makes them able to produce more melanin. (The Science of Tanning)

If case of exposure to the sun during the first year of formation, a keloid can be tan darker than the surrounding skin.

Some people are born with more melanin than others. People with dark skin have more melanin than people with light skin. Some people are born with no melanin at all, and they are called albinos (Stewart, 10). Too much time in the sun produces extra melanin which protects the skin from the sun’s rays, and also makes lighter skin get darker, or suntanned. But if too much time is spent in the sun, it can result in a sunburn, and this can lead to skin

C. Melanoma Skin Cancer is the most dangerous form of skin cancer, it kills one person per hour, these cancerous growths are most often caused by ultraviolet radiation from sunshine or tanning beds. These tumors originate in the pigment-producing melanocytes in the basal layer of the epidermis. Melanoma is caused mainly by intense, occasional UV exposure (frequently leading to sunburn), especially in those who are genetically predisposed to the disease. Often the first sign of melanoma is a change in the size, shape, color or feel of a mole.

Human pigmentation is influenced by hemoglobins within blood vessels in the skin, carotene and melanins. Melanin, the basis of pigmentation, can be found in the forms of eumelanin and phaeomelanin. Eumelanin is the brown-black pigment located in the skin, hair, and eyes. Phaeomelanin is a yellow to reddish-brown pigment found in small quantities within the skin, eyes, and red hair. Because of these two pigments, to a greater or lesser degree, we have the variation

Other things such as carotene and blood flow influence skin color as well. Freckles are indicative of uneven melanin production, and can become more apparent due to sun exposure. It is believed that this uneven production is genetically passed down. Wrinkles will occur naturally on their own due to skin becoming less elastic and natural oil production to slow as the body ages. Ultraviolet radiation exposure can speed up the natural aging process and cause your skin’s elastic and collagenous fibers in your connective tissue to begin to break down.

Going tanning to get that healthy glow is like leaving toast in the toaster for too long. Imagine leaving your toast in the toaster for six minutes and come back to see it being completely black and unappealing. If heat rays can do that to your slices of bread just imagine what those rays can do to your skin. That perfect glow means getting a shine on your melanin and giving your skin that bronze look. But, that melanin can lead to a much dangerous skin disease known as melanoma. Melanoma is a skin cancer that has taken over 9,000 lives in just 2014 alone.

Melasma is caused due to an over production of melanin. Melanin is the substance that imparts color to the skin. The exact cause for this type of hyperpigmentation is not known. However, the main four factors that contribute to melasma are hormone, genetics, skin inflammation and sun exposure. Intense exposure to sun can worsen the problem. Pregnancy and menopause also can trigger melasma. It

Skin lesions resulting from excessive exposure to radiation or without adequate protection from the sun. The sun's rays come to earth in the form of ultraviolet rays, UVA and UVB. Both types of rays are potentially dangerous because in dose excessive can damage the molecular structures of cells, particularly those of DNA. Even X-rays, applied in small doses, can lead to sunburn. This is manifested by a reddened area, due to a greater flow of blood to the stimulus exerted by the heat on the cutaneous nerve fibers. The skin, in addition to red, may also be swollen and seat of burning pains. After two or three days, the burning subsides; the redness disappears and is replaced by a brown pigmentation of the skin, peeling skin