Word: melanin
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Anatomists have long held that white skins are tinted by three pigments: melanin, a black chemical; hemoglobin, a reddish substance which colors the blood; oxyhemoglobin, a form of hemoglobin in combination with oxygen. They also believed that Negroes and Orientals are darker than Caucasians partly because of the presence of some special, unknown pigment in their skins...
...occur anywhere on the surface of the body, in the mucous membranes of the upper and lower ends of the digestive tube, and in the eye." It may be covered with coarse hairs. In color it ranges from light brown to black. Color is due to a pigment called melanin...
...Melanin is also the coloring matter of black cancer, one of the swiftest and most deadly forms of this disease. Since black cancers are malignant tumors and raised pigmented moles are benign tumors, pathologists call both Melanomas. What all cancer specialists know and what few laymen realize is that black moles sometimes turn suddenly into black cancers which are rarely recognized in time to save the victim's life...