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Scientists used a special imaging technique to observe that hair follicle regeneration involves cell division and structural changes, mostly in the lower part of the follicle, and that the dermal papilla at the base is crucial for regrowth.

Controlled release of VEGF in a collagen hydrogel boosts hair growth in mice.

A specific group of skin stem cells was found to help maintain hair follicle cells.

Dermal-epidermal interactions are crucial for hair growth and maintenance.

Root hair growth slows under force, confirming a model of cell wall mechanics.

The hydrogel effectively stops bleeding and heals diabetic wounds quickly.

Trichostasis spinulosa is a rare skin condition with hair-filled plugs in hair follicles.

Sheep hair follicle cells can grow a lot but need the dermal papilla to do so.

The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.

The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.

Human hair follicle stem cells can become endothelial cells with certain growth factors, useful for vascular treatments.

Thinner hair follicle structures are linked to non-scar alopecia.

Human dermal fibroblasts help microvascular endothelial cells grow, but not vice versa.

Dermal Wnt/β-catenin signaling is important for the proper size and development of hair follicles.

UV-enhanced trichoscopy helps diagnose hair shaft disorders like pili annulati.

Thymosin β4 and VEGF are important for organ function and may help with blood vessel formation.

Primary and secondary hair follicle cells in Cashmere goats have different gene expressions affecting hair growth and size.

Trichostasis spinulosa causes itchy bumps on young adults' skin.

The study found clear differences in lesion distribution and microscopic features among trichostasis spinulosa, keratosis pilaris, and eruptive vellus hair cysts.

New cells join the hair's dermal papilla during the growth phase, possibly affecting hair thickness.

Canine hair follicles have stem cells similar to human hair follicles, useful for studying hair disorders.

Scientists found gene mutations that affect hair loss, skin stem cells, and skin disorders, and identified drugs that may help treat blood vessel and skin conditions.

Adding a water-soluble fatty acid complex to sheep diets improves wool growth by increasing primary hair follicle size and density.

Rushton's hyaline bodies form from hair keratin and blood substances.

The dermal papilla interacts with the epidermis to control hair growth and development.

Human hair's strength comes from a honeycomb-like structure and macrofibrils.