Melanocyte

Introduction: Vitiligo is a depigmenting disorder of the skin, in which melanocytes (pigment cells) are attacked. Melanocytes produce melanin, which determine the color of the skin, hair, and eyes. When these cells are attacked, the skin color becomes significantly lighter. The exact cause of vitiligo is unknown, but the most probable cause believed (in this study) is an autoimmune reaction against the pigment cells. Initial Observation and Question: In this study, Vitiligo is considered an…

with skin cancer]. Wavelengths of light 280 to 320 NM are classified as UVB and longer wavelengths of 320 to 400 mm as UVA” (Abdulla, 502). In this specific paper the authors mainly focus on how UVB radiation affects the cartoonists as well as melanocytes to create different mutations in the bodies’ skin cells causing the production of cancer. It is shown that the mutations occurring are due to “…DNA damage and subsequent mutation…initiating steps for the onset of both melanoma and nonmelanoma…

Mummification is a modification of putrefaction characterised by the dehydration of the tissues converting the body into a leathery mass of skin and tendons surrounding the bone. The internal organs are often decomposed but preserved. Skin shrinkage may produce large artefactual splits mimmicking injuries, particularly seen in the groins, around the neck, and the armpits. Mummification develops in conditions of dry heat, especially when there are air currents,e.g. in a desert or inside a…

melanin than paler ones. The causes of melasma are currently unknown but scientists believe it has to do with melanocytes that are more active and create more melanin than needed. Sun exposure, hormones, and even cosmetics could be the main triggering factors of melasma. Melasma is considered a…

Vitiligo is a disease, that occurs when the pigment cells of the skin is destroyed. In certain areas the melanocytes are destroyed, so it creates white patches on the skin. Vitiligo can be focal or it can me on more than one area on the body. Vitiligo is not painful, although some people with vitiligo can have physiological and emotional problems with it. Experts do not know exactly what the cause of vitiligo is just yet, but some researches think that the body’s immune system mistakenly…

Hair dyes and Cosmetics: The word cosmetic derives from the Greek word kosmetike tekhne,meaning “techniques of dress and ornament”t.hair dyes is most commonly use cosmetics. Which are apply on hair to alter the appearance of hairs. It is the practice of changing hair color without surgical operation .the main purpose of hair dyeing is to cover gray hairs or change to a color regarded as more fashionable and deriable. Hair coloring can be done independently at home or professionally by a…

The American Cancer Society estimates that skin cancer is the most prevalent of all cancers with over 2 million cases of non-melanoma skin cancer each year and 75,000 melanoma cases in 2012**. Melanoma is one of themost serious consequences of skin cancer where melanocytesproliferate actively with enhanced accumulation of melaninpigment leading to hyperpigmentation and tumor formation. Up-regulated levels oftyrosinase enzyme appear to be correlated to with greater production and accumulation of…

Fake tanning is not as safe as what most people might think it is. Fake tanning in a tanning bed is just as bad as tanning in the sun, indoor tanning also exposes your skin to ultraviolet (UV) rays. Whether the UV rays are coming from a tanning bed or the sun they can still cause wrinkles, rashes and dark spots. The most dangerous types of UV rays can change the DNA in cells, which is what experts believe is the main cause of skin cancers.In the US, 35% of adults and 55% of college students have…

What are sudoriferous glands, and where are they located? They are sweat glands and they are located throughout the body. 11. What is sweat composed of and what are two functions of sweat? Water, salts, urea, uric acid, amino acids, ammonia, sugar, lactic acid, ascorbic acid, and pheromones. Two functions are to regulate body temperature and rid body of waste. 12. Name two types of sweat glands and differentiate between the two. Eccrine and Apocrine sweat glands. The apocrine…

develops in the pigment cells of the skin called melanocytes. It is a type of skin cancer that can be more serious than any other forms because it has the ability to metastasize, which is the development of secondary malignant growths from the primary site of cancer, to other parts of the body and cause serious illness or even death. Melanoma most often occurs when something goes awry in the melanin-producing cells or as already mentioned, melanocytes, which give color to the skin. Normally,…