Sentences with phrase «pigmented skin cells»

When analyzing proteins from pigmented skin cells of the African clawed frog, Provencio's team found messenger RNA that helps make a new opsinlike protein — although they have not isolated the protein itself.

Not exact matches

It's possible for them to change depending on the amount of melanin, which refers to the pigments of color the skin cells produce.

The placenta may release a hormone that stimulates melanocytes, the cells that produce melanin to pigment your skin or give you a suntan.

These skin changes are due to hormonal influences on the skin pigment cells in these areas.»

The carotene compound is converted to Vitamin A by the body where it is used to maintain the skin and assist in making cells that sense light as well as the pigments in the eye.

Because these other skin cell types showed no signs of expansion or transformation, our analysis highlights pigment - producing cells as the originators of melanoma.»

Melanoma occurs when melanocytes — cells that make pigment in skin and hair — undergo a malignant transformation.

Melanocytes, healthy skin cells that form the pigment melanin, come from neural crest cells, which are created in the spinal column.

Inindividuals with albinism, genetic alterations interfere with the melanocytes» production of pigment or their ability to distribute it to keratinocytes, the major cell type of the skin's outer layer.

A dearth of skin pigment leaves people more susceptible to nonmelanoma skin cancers such as squamous cell carcinoma and basal cell carcinoma.

Melanoma is a cancer that originates in melanocytes, the cells that produce the skin - color pigment melanin.

Unlike self - tanning lotions that essentially stain skin brown and provide minimal sun protection, the drug activates the production of the dark form of the skin pigment melanin, which absorbs UV radiation and diminishes damage to skin cells.

Uveal melanoma (which is biologically distinct from skin melanoma) arises from the uvea's melanocytes, the pigment cells that give the eye its color.

Tattoos can be removed by laser pulses that cause skin cells to die and release their pigment, which can then be transported away from the skin and into the body's lymphatic system.

The scientists found that the IL - 17 and TNF cytokines were disrupting the pigment production of patients» melanocytes — the cells that produce melanin, the pigment that gives skin its color.

In the study, human melanocytes — the cells that produce the skin pigment melanin — were exposed to estrogen levels usually seen during pregnancy.

Normally these cells manufacture melanin, the pigment that colors our hair and skin.

Wei Long Ng explained: «The two - step bioprinting strategy involves the fabrication of hierarchical porous collagen - based structures (that closely resembles the skin's dermal region), and deposition of epidermal cells such as keratinocytes and melanocytes at pre-defined positions on top of the biomimetic dermal skin constructs, to create 3D in - vitro pigmented human skin constructs.

As well as the potential to produce pigment - correct skin grafts, the team's 3D bioprinting method could also be used to develop skin constructs for toxicology testing and fundamental cell biology research.

To make the pigmented skin constructs, the team used three different types of skin cells — keratinocytes, melanocytes, and fibroblasts — and a two - step «drop on demand» bioprinting method.

During surgery, melanocyte skin cells responsible for giving color to the skin, hair and eyes are harvested from healthy, pigmented areas of the body and transferred to an area that lost its pigment.

The cells are harvested from a painless blister raised on the skin, then transferred to the area of involvement to replace the missing pigment cells and restore the individual's natural skin color.

Ramachandran suspects that there are specialized cells in their brains that can recognize particular patterns and then tell the skin what pigment bodies to expand or contract.

When skin cells are damaged by ultraviolet light they produce more pigment, which makes skin appear darker.

Melanoma is a cancer of the skin cells that produce pigment, called «melanin,» that produces color in our skin.

The authors say that pigment cells may be preserved in other samples of this phosphatized skin — people just haven't known to look for it.

In reptiles, amphibians, and other groups, color mostly comes from chromatophores — cells within the skin that hold color - producing pigment molecules.

Taking samples from the back, belly, and side of the fossil skin, the team found different numbers of the three pigment cells at each location.

Researchers at the University of Bonn and the Ludwig - Maximilians - Universität of Munich have decoded a new mechanism of how the immune system can specifically attack pigmented cells of the skin.

Pigmented cells of the skin are crucial as a protective shield against UV - radiation.

The vampirelike bleaching happens as the flatworm's skin cells begin to overproduce porphyrin, a pigment that gives them their natural color.

Unlike normal fish skin cells, they were tightly clustered and produced pigment in areas where there usually is none.

The key to these makeovers are special pigment - containing cells called chromatophores, which, when activated by light, can spread their pigments out or bunch them up to change the skin's overall color or pattern.

The cells produced more eumelanin, the pigment responsible for black and brown skin, hair, and eyes.

Notice the brown pigment of the cell walls; this is melanin, the same pigment that darkens human skin.

These tumors occur primarily on the skin but may also arise in other tissues where pigment cells are found.

Having successfully reconstructed an epidermis using pluripotent stem cells in 2009, Christine Baldeschi's team at I - Stem, has just given it colour: using the same strategy, the researchers have obtained, in vitro, functional melanocytes, the cells that give skin its pigment and protect it from UV rays.

In 2014, a Japanese woman in her 70s with age - related macular degeneration — a common eye condition that can lead to blindness — had a tiny sheet of retinal pigment tissue made from her own skin cells implanted into one eye, which reportedly stopped the disease's progression.

Ng explains, «The two - step bioprinting strategy involves the fabrication of hierarchical porous collagen - based structures (that closely resembles the skin's dermal region), and deposition of epidermal cells such as keratinocytes and melanocytes at pre-defined positions on top of the biomimetic dermal skin constructs, to create 3D in - vitro pigmented human skin constructs.

«These white markings occur not because the dogs can not produce pigment but because they completely lack pigment cells in the skin in the areas that have white markings», says Izabella Baranowska Körberg who obtained her PhD degree at SLU on a thesis in which this study was included.

Melanocytes are cells that produce the melanin pigment visible in skin and hair coloration.

This trait involves a massive expansion of pigment cells that not only makes the skin and comb black but also causes black internal organs.

They went on to show that Sox10, a factor needed for the formation of skin pigment cells from neural crest stem cells during development, was present at high levels in naevi and melanoma samples obtained from both the mouse model and human patients.

Melanocytes are a type of skin cell that make a brown pigment called melanin.

In vitiligo, something is killing skin pigment cells (melanocytes), but the cause has remained obscure.

Melanoma is a form of cancer that develops from the pigment producing cells of the skin.

The research published by GenoMEL has identified inherited genes which increase melanoma risk which are pigment genes (affecting skin colour and vulnerability to sunburn), genes which are associated with having more moles (melanocytic naevi) and others associated with a part of the genetic makeup of the cell called the telomere.

A gene called Alx3 blocks the differentiation of pigment - producing cells in the skin of the African striped mouse, thus generating the mouse's characteristic light - colored stripes, a new...

Laser surgery, which resurfaces skin and destroys highly pigmented cells, is a solution, but expect a lengthy recovery period and a price tag in the thousands of dollars.

And the good news is there are a number of treatment options available including camouflage using make - up and self tanning lotions; micro-tattooing may be useful for small stable areas of vitiligo such as face, lips and hands; light therapy; the transfer of a patient's own pigment cells from unaffected skin into the vitiligo - affected cells and laser treatments.