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Follicular structures help differentiate keratoacanthoma from squamous cell carcinoma.

Tan sheep's unique fur traits are determined during the embryonic stage by specific genes.

Adding fetal calf serum helps Merkel cells survive and change shape.

Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.

Root hair stiffness is mainly influenced by tip compression and turgor pressure.

Artificial hair implantation using scaffolds is possible and PHDPE is more biocompatible than ePTFE.

Plucking hair speeds up the next hair growth, but hormones can change this timing.

Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.

Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.

Telomerase-positive cells are mainly in the bulb matrix and outer root sheath of hair follicles.

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

Recombinant keratin materials may better promote skin cell differentiation than natural keratin.

Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.

Alopecia frontal fibrosante affects facial vellus hair and can be diagnosed with dermatoscopy.

Fermented extracts may help hair growth.

Basement membrane-like ECM supports fibroblast aggregation and cohesion.

Human hair keratin genes have unique simple sequence repeats that may help track genetic variations.

The extracts may help hair growth.

Microstimulation of certain facial and mouth nerves can evoke specific sensations, while deeper nerves may require multiple stimulations to affect perception.

Brunsting-Perry pemphigoid can cause scarring hair loss and may be underdiagnosed.

Nanofiber structure helps regenerate hair follicles.

Keratin biomaterials from human hair help nerve regeneration by activating Schwann cells.

The research found specific facial points that help create natural-looking beard lines for better beard restoration.

The conclusion is that "trichoknesis" should be recognized as a separate condition from trichodynia, characterized by itching instead of pain.

Keratin sponges are as biocompatible as collagen, but keratin gels are slightly less so.

The research identified key proteins that affect wool fiber thickness in Angora rabbits.

Electrical epilation damages hair follicles and surrounding skin, likely preventing hair regrowth.

Canine hair follicle stem cells are located in the isthmus/bulge region of the hair follicle.

Feather patterns form through genetic and epigenetic controls, with cells self-organizing into periodic patterns.