A new study helps combat gray hair

A new study helps combat gray hair

Researchers at New York University revealed new evidence about why human hair loses its natural color over time.

The study, reported by the “Daily Mail” newspaper, closely examined the stem cells of pigment cells known to control hair color, and the researchers believe that the study will contribute to the elimination of white hair.

Scientists from Grossman College made the discovery after studying white hair in aged mice, and focused on melanocyte stem cells, which are also found in humans and control hair color.

During normal hair growth, these cells move between parts of the growing hair follicle and are exposed to different levels of protein signaling.

During the study, it was observed that the number of hair follicles containing “stuck” stem cells increased from 15% in young hair to more than half in older hair.

lack of pigment cells

The stem cells responsible for maintaining hair color work normally, but with age, with hair loss and regrowth, congenital stem cells tend to slow down, and this is known as hair follicle bulging.

And the lack of pigment cells means that the hair will lose its color, resulting in the whitish-gray color that many people dread.

Study leader Ki Sun said the newly discovered mechanisms raise the possibility that the same fixed locus of melanocyte stem cells exists in humans.

He added: If this is the case, then it represents a potential path to reverse or prevent the appearance of graying in human hair by helping the stacked cells move again between the parts of the developing hair follicles, and we are currently looking for ways to help restore the ability of stem cells responsible for producing dye. the hair.

The key to maintaining hair color

"The loss of pigment function, which is similar to chameleon coloration, in melanocyte stem cells may be responsible for graying and loss of hair colour," said lead researcher Mayumi Otei.

He pointed out that these results indicate that the movement of melanocyte stem cells and reversible differentiation are the keys to maintaining hair health and color.

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