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Researchers made a detailed map of gene activity for different parts of human hair follicles to help create targeted hair disorder treatments.

The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.

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

Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.

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

Calretinin identifies the companion cell layer in human hair follicles.

MAP-2 is crucial for the structure of hair follicles and nails.

Human hair follicle stem cells show signs of low oxygen levels, which may be important for hair growth and preventing baldness.

The hair follicle structure is more complex than thought, with new findings on protein formation.

Tight junctions create a barrier in pig hair follicles that controls what can enter the skin.

Recognizing ultrastructures of cashmere goat hair follicles helps identify and locate follicle layers.

Touching hair can activate nearby nerve cells through signals from the hair's outer layer.

The hair follicle bulge is an important area for adult stem cells involved in hair growth and repair, with potential for medical use needing more research.

Mouse stem cells from hair follicles can improve wound healing and reduce scarring.

TGF-alpha is present in sheep and ferret skin and may affect hair growth without directly stimulating cell proliferation.

Vitamin D receptor is crucial for starting hair growth after birth.

Plet-1 protein helps hair follicle cells move and stick to tissues.

Notch-related genes play a key role in the development and cycling of hair follicles.

Milia may come from the outer part of the hair follicle.

Effective anti-dandruff products work well against scalp microbes and stick to the skin.

Nestin-expressing progenitor cells become outer root sheath keratinocytes.

The enzymes Aldh1a2 and Aldh1a3 are involved in making retinoic acid in hair follicles and have different roles in hair growth.

Nestin-expressing cells turn into a specific type of skin cell in hair follicles during development and in adults.

Nestin marks cells that can become a specific type of skin cell in hair follicles of both developing and adult mice.

Betamethasone activates and increases the growth of certain skin cells from hair follicles.

Cicatricial alopecia may be caused by immune attacks on hair follicles, gland issues, or stem cell damage.

Activated β-catenin affects hair growth and skin thickness, and changes are reversible.

The model better predicts how water-loving and fat-loving substances move through the skin by including tiny pores and hair follicle paths.

The simulation showed that hypobaric pressure improves drug delivery through the skin, but stretching alone doesn't fully explain the increase.

Rubbing skin increases absorption of water-soluble drugs from lotions and creams, but not oil-soluble drugs.