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A cure for gray hair?/ Scientists discover the mechanism for changing hair color

2023-04-21 10:40:00, Trending CNA
A cure for gray hair?/ Scientists discover the mechanism for changing hair color
Illustrative photo

Dark spots are telltale signs of aging that men and women have tried to cover up for generations.

But scientists are one step closer to finding a way to turn gray hair back.

A team of researchers has discovered stem cells, which are capable of developing into many different cell types and which have the unique ability to move between growth divisions in hair follicles.

As we age, these stem cells become stuck in a compartment called the hair follicle.

These 'stuck' cells are unable to regenerate into pigment cells, which help the hair retain its color, resulting in gray hair.

The discovery could one day lead to treatment that allows people to keep their natural hair color without having to dye it.

Scientists, from New York University's Grossman School of Medicine, made the discovery after studying white hair in mice.

They focused on melanocyte stem cells, which are also found in humans and control hair color.

During normal hair growth, these cells move between compartments of the developing hair follicle and are exposed to varying levels of protein signals.

As hair grays and then grows back repeatedly, an increasing number of these stem cells become stagnant and are not exposed to certain proteins, preventing them from turning into pigment cells.

The lack of pigment cells means that the hair will lose its color, resulting in gray hair that many people fear.

The team now plans to investigate possible means to restore the motility of these stem cells, or their physical movement between compartments where they can produce pigment and stop graying./ CNA.al





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