Those cells produce the black melanin which renders tanned skin. Excessive growth of melanocytes may cause too much pigmentation and possibly trigger black skin cancer. Signalling pathways in ...

Melanin is a substance present in the skin that produces pigment. Each person has a different ... and whether or not a person can have too much or too little of it in the skin.

which gives skin its color. Hyperpigmentation happens when too much pigment settles into a small spot in the skin. Hyperpigmentation can come in many forms. Common examples include: lentigines ...

In hyperpigmentation, the skin either produces too much pigment or the pigment is deposited deep within the skin, resulting in dark spots. When color is lost, it's called hypopigmentation ...

Then look at the patch of skin on the inside of your upper arm, the part of you that almost never sees the sun. Whatever color you ... creates problems, too. All vertebrate animals need ...

A cuttlefish’s skin contains over twenty million chromatophores, cells of pigment attached to miniscule ... cuttlefish are careful not to expend too much energy and usually spend about 95 ...

In this article, we’ll dive into what melanin is, why melanin is so important for the skin, and how various factors can influence how much ... humans and animals: Eumelanin. This pigment is ...

Another breed, known as the silkie because of its soft, hair-like feathers, also sports hyperpigmented skin and ... you express too much endothelin 3, and in the wrong places, the pigment cells ...

1 of skin cancer ... When exposed to too much UV, the keratinocytes send an SOS to the melanocytes, which produce melanin. Melanin, or specifically, eumelanin, is a dark brown pigment that ...

an evolutionary geneticist at the University of Geneva and an expert on animal skin color. And videos on YouTube, he says, some of which show the lizards changing colors as they encounter differen ...