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Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.

Fetal hair follicles have melanocytes with melanosomes at different stages, which are broken down into pigment particles in keratinocytes.

Epithelial cells from young rat hair follicles grow and form aggregates in culture, but don't produce hair keratin proteins.

Rac1 is essential for proper hair structure and color.

Human hair medulla doesn't break down hydrogen peroxide, which may affect hair color formation.

Ziehl-Neelsen's stain helps identify different parts of hair in sheep and goats.

Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.

Cathepsin L is essential for normal hair growth and development.

The KRTAP11-1 gene promoter is crucial for specific expression in sheep wool cortex.

Keratin from human hair shows promise for medical uses like wound healing and tissue engineering.

CIP/KIP proteins help stop cell division and support hair growth.

Dhatryadi Rasayana, an Ayurvedic herbal mix, may be a safe and effective way to prevent premature hair greying.

The paper concludes that understanding melanocyte development can help in insights into skin diseases and melanoma diversity.

Keratose, derived from human hair, is a non-toxic biomaterial good for tissue regeneration and integrates well with body tissues.

Putting α-methylspermidine on mouse skin can start hair growth.

Genetically modified sheep with more β-catenin grew more wool without changing the wool's length or thickness.

Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.

Hair color is determined by melanin produced and transferred in hair follicles.

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.

SV40 T antigen in hair follicles causes abnormal hair and health issues in mice.

K6hf is a unique protein found only in a specific layer of hair follicles.

Wool follicles are complex, involving interactions between different cell types and structures.

Msx2 and Foxn1 are both crucial for hair growth and health.

Premature graying of hair may suggest health issues and currently lacks effective treatments.

Rice bran extract and low-frequency electromagnetic fields together may help treat vitiligo and white hair.

Genetics, stress, and health issues can cause early hair greying, which affects self-esteem, and there's no cure, only hair dye.

Hair grays due to oxidative stress and fewer functioning melanocytes.

Despite progress in treatment, the exact cause of Alopecia areata is still unknown.

Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.

New hair products are being developed to keep hair and scalp healthy for everyone.