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Ancient Egyptian skin analysis: An attempt to discredit Mekota and Vermehren (2005)
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[QUOTE]Originally posted by the lioness: [QB] [QUOTE]Originally posted by Truthcentric: [qb] [QUOTE]Originally posted by NonProphet: [qb]Negro, Negroid, Black nor African words are not found in the study. [/qb][/QUOTE]They're not found in the abstract, but IIRC another poster here (Bob_01 I think) was able to access the text of the paper and find the word "Negroid". [b]EDIT:[/b] Found the post in question, which quotes the study as saying: [QUOTE]Skin sections showed particularly good tissue preservation, although cellular outlines were never distinct. Although much of the epidermis had already separated from the dermis, the remaining epidermis often was preserved well (Fig. 1). [b]The basal epithelial cells were packed with melanin as expected for specimens of Negroid origin[/b]. In the dermis, the hair follicles, hair, and sebaceous and sweat glands were readily apparent (Fig. 2). Blood vessels, but no red blood cells, and small peripheral nerves were identified unambiguously (Fig. 3). The subcutaneous layer showed loose connective tissue fibers attached to the dermis, and fat cell remnants were observed.[/QUOTE]That said, when I used this argument in a recent debate of my own, my opponent had this to say: [QUOTE]All melanin is not created equal. Caucasians and Asian in sunny climes (and there is no disputing that Egypt is one of the sunniest places on Earth, both in number of days per year and intensity of solar radiation) will also have cells "packed with melanin" but it is chemically different varieties of melanin. There are many variants of melanin, most divided into eumelanin (the darkest such pigments) and pheomelanin (lighter and reddish pigments). Outside of albinos, ALL humans actually have both categories of melanin, it's the proportions that determine skin and hair color. So saying "packed" with melanin just means in life the person was exposed to a lot of sunlight. Unless you know what sort of melanin those cells are packed with, though, it doesn't really speak to skin color.[/QUOTE]Anyone have a rebuttal to this? [/qb][/QUOTE]"Packed with" in this context does not mean "a lot of". Fair skin is packed with melanin but dark skins is more densely packed than fair skin. Light skin and dark skinned people have Melanocytes. Melanocytes manufacture melanin. Melanosomes take in the enzymes and tyrosine. Inside melanosomes, the enzymes, acting as catalysts within the cells, begin a long series of chemical reactions in order to convert tyrosine into the two types of melanin humans have. These are eumelanin, which is brown or black, and pheomelanin, which is red or yellow. Once melanosomes are packed with melanin, melanocytes ship them away -- to keratinocytes, barrier cells in the topmost layer of the skin and the iris in the eye -- and into our hair. How many are shipped, and the mix of pigments carried, determine our baseline skin, eye and hair colors. [/QB][/QUOTE]
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