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Hair follicle stem cells are mainly in the bulge region and can help repair skin and form hair and glands, but more research is needed to fully understand them.

Prolactin may play a significant role in skin and hair health and could be a target for treating skin and hair disorders.

Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.

K15 gene is mainly active in the basal layers of hair follicles and epithelia, aiding early skin cell development.

Cetaceans lost hair genes to adapt to water.

Engineered skin substitutes can grow hair but have limitations like missing sebaceous glands and hair not breaking through the skin naturally.

Some hair loss disorders are caused by genetic mutations affecting hair growth.

Keratin patterns in hair follicles help understand hair growth and potential hair and nail disorders.

Hirosaki hairless rats lack hair due to missing DNA with key keratin genes.

Hair and follicle keratins differ in structure and expression, especially in cysteine content.

The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.

Inhibiting glycogen metabolism can promote hair growth.

Human hair follicles grown in vitro maintain normal keratin patterns and structure.

Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.

Monotreme and marsupial skin proteins show primitive features and species-specific differences compared to placental mammals.

The genes OVOL1 and OVOL2 are important for hair growth and may be involved in a type of skin tumor.

Aging makes hair thinner and rougher, with less clear edges.

A gene variant increases the risk of a type of hair loss by affecting hair protein production.

Dopamine stops hair growth and pigment production in human scalp hair follicles.

Hair's strength and flexibility come from its protein structure and molecular interactions.

The document concludes that over 500 genes are linked to hair disorders and this knowledge is important for creating new treatments.

Hair and wool have diverse keratins and keratin-associated proteins.

A two-step method was created in 2015 to make more cells that help with hair growth, but they need to be combined with other cells for 4 days to actually form new hair.

Keratin proteins are crucial for hair growth and structure.

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

White hair has less lipid content and absorbs water differently than brown hair.

The research found that postmortem root bands in hair are likely caused by the breakdown of a specific part of the hair's inner structure after death.

A gene mutation causes early keratinocyte maturation leading to hair loss in Olmsted syndrome.

Hair microscopy is useful for diagnosing hair disorders, but clear definitions are needed for accurate genetic analysis.

SGK3 is essential for proper hair growth and health.