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As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.

Gray hair may be caused by lower antioxidant activity in hair cells.

Wnt signaling is crucial for pigmented hair regeneration by controlling stem cell activation and differentiation.

A new staining method shows a special area in the hair's skin layer with lots of proteoglycans.

Hair dye can make it hard to diagnose scalp conditions correctly.

Researchers found that certain lipids, especially vitamin D3, are lower in prematurely grey hair than in pigmented hair.

Gamma rays did not change hair follicle density but increased white and hypopigmented hairs in mice.

Hair melanocytes help the skin respond to stress and regulate hair pigmentation.

Photodynamic therapy can remove nonpigmented hair in mice and might work for humans.

CD133+ cells are crucial for hair growth.

Hair casts on the scalp may be a sign of ongoing pemphigus vulgaris and could suggest a need to adjust treatment.

Adiponectin reduces hair pigmentation and affects hair growth signals.

Early hair graying is often inherited and influenced by genetics, environment, and lifestyle, but treatment options are limited.

Oxidative stress causes hair to gray by damaging and killing pigment cells.

Different human hair follicle stem cells grow at different rates and respond differently to a baldness-related compound.

The document concludes that a protein involved in hair growth may link to baldness and that more research is needed on its role in hair loss and skin cancer treatments.

Hair loss is a rare but recognized symptom of pemphigus vulgaris, with patients usually regrowing hair after treatment.

Premature hair graying is caused by genetics, stress, and lifestyle, and affects mental health.

More melanoblasts in hair follicles mean better survival and proper hair pigmentation.

Epithelial grafting can effectively repigment white hair in vitiligo patients.

Stem cells can create hair follicles, potentially treating permanent hair loss, and healthy skin and hair depend on mitochondrial function and special fats.

Increased PHGDH expression causes early melanin buildup in hair follicles.

VIP reduces hair pigmentation by decreasing melanin production.

Healthy scalp is crucial for hair growth and preventing hair loss.

Researchers found new hair and nail genes, how hair reacts to UV, differences in white and pigmented hair growth, nerve changes in alopecia, treatments for baldness and alopecia, a toenail condition linked to a genetic disorder, and that nail fungus is more common in people with psoriasis.

Black hairs have more pigment-related genes, while gray hairs have more keratin-related genes.

Hair dye with para-phenylenediamine can cause skin depigmentation.

A 32-year-old woman's hair loss was linked to skin nodules and severe headaches.