Sentences with phrase «skin pigmentation»

We observe extensive variation in skin pigmentation in Africa, with lowest melanin levels observed in southern African San hunter - gatherers and highest levels in East African Nilo - Saharan pastoralists.

Despite the wide range of skin pigmentation in humans, little is known about its genetic basis in global populations.

So concludes an analysis of the genetic variants associated with skin pigmentation in people from several regions of Africa.

Researchers have also noted that vitamin D deficiency is prevalent in adults of all ages who always wear sun protection (which blocks vitamin D production) or limit their outdoor activities.1 People with increased skin pigmentation (such as those whose ancestors are from Africa, the Middle East, or India) are also at risk, as are the elderly.

These benefits can include improved skin pigmentation, reduce pore size, prevent acne, the appearance of age spots and the prevention of future age spots.

«Correcting disorders of human skin pigmentation is difficult, as safe and effective medications that alter melanin pigment production are lacking.

Indigenous people of the Solomon Islands in the South Pacific have some of the darkest skin pigmentation outside of Africa.

BCD02 has an effect on skin pigmentation in birds, with one form associated with white or grey skin, and another associated with yellow skin in well - fed chickens.

A groundbreaking study finds light skin pigmentation gene variations originating in Africa, eroding the notion of race as a biological characteristic, and shedding light on cancer and evolution, too.

A Henry Ford Hospital study has shown that skin transplant surgery has long - term benefit for restoring skin pigmentation caused by the skin disease vitiligo.

The laser light is absorbed by skin pigmentation and fur; however we program the laser for each individual patient.

Good news, if you suffered from skin pigmentation changes during pregnancy (sometimes called ««the mask of pregnancy» or chloasma or melasma), these changes will often fade away after giving birth.

This is normal skin pigmentation, as your tummy expands to accommodate your growing bump.

The hunter - gatherers also had a high frequency of genetic variants linked to reduced skin pigmentation — a known adaptation to environments with low UV radiation, such as those at high latitude.

In their paper, publishing today in Biofabrication, the team show how they utilise 3D bioprinting to control the distribution of melanin - producing skin cells (melanocytes) on a biomimetic tissue substrate, to produce human - like skin pigmentation.

Treatment of melanised epidermis with alpha - melanocyte stimulating hormone (αMSH), a physiological agent that controls skin pigmentation, activated the production of melanin in the tissue.

Alpha Lipoic Acid, or ALA, fades or prevents skin pigmentation.

Bioprinted skin can now incorporate accurate skin pigmentation patterns, as reported by new research published in Biofabrication.

Reporting in the November 30 issue of Cell, researchers from the Broad Institute of MIT and Harvard, Stanford University, and Stony Brook University report that while skin pigmentation is nearly 100 percent heritable, it is hardly a straightforward, Mendelian trait.

The GOP votes for talent, and considers skin pigmentation irrelevant.

Not only has your baby yet to develop skin pigmentation (that can actually take up to six months), his or her circulation is not quite up to speed, which impacts skin appearance.

In addition to that, the hormone that regulates skin pigmentation (melanocyte - stimulating hormone) also increases.

Shortly, you may notice a dark vertical line of skin pigmentation running down the middle of your abdomen, from your belly button to about where your pubic hair begins (the center of your pubic bone).

Women who have dark skin pigmentation tend to have darker linea nigra than fair - skinned women.

Article: Your Newborn's Skin and Rashes Article: Skin Conditions: Pigmented Birthmarks Article: Cosmetic Procedures: Birthmarks and Other Abnormal Skin Pigmentation

Being born without skin pigmentation in the U. S., a condition called albinism, does not usually shorten an individual's lifespan.

An analysis of genetic variation and skin pigmentation suggests that some particularly dark skin tones evolved relatively recently from paler genetic variants

Together, these sites account for about 30 per cent of the variation they found in skin pigmentation among the volunteers.

Changes to skin pigmentation pathways probably reflect selective pressures related to sunlight exposure that humans experienced as they spread out from humanity's origins in Africa to other parts of the world and adapted to local environments.

«This is the same trend we see on an intra-species level for human skin pigmentation around the globe.»

«Our aim with this project was to use this method to demonstrate the feasibility of making 3D in - vitro pigmented human skin constructs, with uniform skin pigmentation.»

These are South African individuals in a household that exemplify the substantial skin pigmentation variability in the Khomani and Nama populations.

However, non-uniform skin pigmentation is often seen, and this remains a huge challenge to be solved.

By working closely with the KhoeSan, a group of populations indigenous to southern Africa, the researchers have found that the genetics of skin pigmentation become progressively complex as populations reside closer to the equator, with an increasing number of genes — known and unknown — involved, each making a smaller overall contribution.

While current engineered skin constructs are successfully used in skin repair and grafting, toxicology, and chemical testing, they lack complex features such as skin pigmentation, sweat glands or hair follicles.

«Human skin pigmentation recreated — with a 3 - D bioprinter.»

«As early humans migrated northward out of Africa, losing skin pigmentation allowed them to retain more vitamin D in the dimly lit terrain.

Genetic markers hinted that he had skin pigmentation often linked to those in the sub-Saharan Africa.

As we continue our learning about skin pigmentation, it appears to be much more complex and more than just skin deep.

This will help avoid UVA and UVB rays, which cause damage to skin cells, resulting in uneven skin pigmentation and other premature signs of aging.

When combined with Vitamin C in certain ratios it can improve actually skin pigmentation, minimize the appearance of age spots, and even prevent of future age spots.

Certified Organic Perfection Concealer - Light (4 ml): A lightweight, perfecting concealer to disguise dark circles, blemishes and even out skin pigmentation for a flawless base.

Why I stress about wardrobe predicaments and lack of skin pigmentation months before I know it will happen, I have no idea.

I don't have any problem of skin pigmentation per se, but i had hoped it would help achieving a more even tone.