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Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among individuals is caused by variation in pigmentation, which is the result of genetics (inherited from one's biological parents ), exposure to the sun, disorders, or some combination thereof. Differences across populations evolved through natural ...
H&E stain. Specialty. Oncology. Merkel-cell carcinoma ( MCC) is a rare and aggressive skin cancer occurring in about three people per million members of the population. [1] It is also known as cutaneous APUDoma, primary neuroendocrine carcinoma of the skin, primary small cell carcinoma of the skin, and trabecular carcinoma of the skin. [2]
Skin cancers are cancers that arise from the skin. They are due to the development of abnormal cells that have the ability to invade or spread to other parts of the body. [10] Skin cancer is the most commonly diagnosed form of cancer in humans. [11] [12] [13] There are three main types of skin cancers: basal-cell skin cancer (BCC), squamous ...
Cutaneous squamous-cell carcinoma is the second-most common cancer of the skin (after basal-cell carcinoma, but more common than melanoma). It usually occurs in areas exposed to the sun. Sunlight exposure and immunosuppression are risk factors for SCC of the skin, with chronic sun exposure being the strongest environmental risk factor.
Turmeric is “rich in antioxidant properties that protect the skin from oxidative damage,” explains Dr. Mraz. More specifically, curcumin taken orally has been found to counteract cell damage ...
Citrus Red 2, Citrus Red No. 2, C.I. Solvent Red 80, or C.I. 12156 is an artificial dye. As a food dye, it has been permitted by the US Food and Drug Administration (FDA) since 1956 to color the skin of oranges. [1] [2] [3] Citrus Red 2 is listed by the International Agency for Research on Cancer (IARC) as a group 2B carcinogen, a substance ...
The human skin is the outer covering of the body and is the largest organ of the integumentary system. The skin has up to seven layers of ectodermal tissue guarding muscles, bones, ligaments and internal organs. Human skin is similar to most of the other mammals ' skin, and it is very similar to pig skin. Though nearly all human skin is covered ...
Sunset yellow FCF (also known as orange yellow S, or C.I. 15985) is a petroleum -derived orange azo dye with a pH dependent maximum absorption at about 480 nm at pH 1 and 443 nm at pH 13 with a shoulder at 500 nm. [1] [2] : 463 When added to foods sold in the United States it is known as FD&C Yellow 6; when sold in Europe, it is denoted by E ...
β-Carotene is the more common form and can be found in yellow, orange, and green leafy fruits and vegetables. As a rule of thumb, the greater the intensity of the orange colour of the fruit or vegetable, the more β-carotene it contains. Carotene protects plant cells against the destructive effects of ultraviolet light so β-carotene is an ...
Category. v. t. e. Identifying human races in terms of skin colour, at least as one among several physiological characteristics, has been common since antiquity. Such divisions appeared in rabbinical literature and in early modern scholarship, usually dividing humankind into four or five categories, with colour-based labels: red, yellow, black ...