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The human scalp hair bulb contains different types of melanocytes with varying abilities to produce melanin.

Trichostasis spinulosa is a common but often unnoticed skin condition involving bundled vellus hairs, especially in people with darker skin or UV exposure.

Keratinized wool cells still have some organelles like lysosomes and mitochondria.

Dermal papilla microtissues could be useful for initial hair growth drug testing.

Arabidopsis collet hairs are good for studying nuclear movement and DNA content increase during growth.

Rat dermal papilla cells have unique properties and interact differently with their environment compared to other skin cells.

Neonate rabbits have consistent skin layers and no sweat glands.

Hair repigmentation can indicate malignancy and should be investigated.

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

Brodalumab is more effective than ustekinumab in treating psoriasis.

VB-1, a natural compound, may promote hair growth by enhancing a key cell growth pathway.

Amelanotic melanocytes from hair follicles are immature and likely don't transfer melanosomes to keratinocytes.

A 32-year-old woman's hair loss was linked to skin nodules and severe headaches.

Skin and hair renewal is maintained by both fast and slow cycling stem cells, with hair regrowth primarily driven by specific stem cells in the hair follicle bulge. These cells can also help heal wounds and potentially treat hair loss.

A specific type of skin cell creates an opening for hair to grow out, and problems with this process can lead to skin conditions.

Human hair is complex and grows in cycles starting from embryonic life.

Keratin 79 cells help form and regenerate hair canals.

A man had a rare pigmented nodule on his scalp that developed from birthmarks.

Rat dermal papilla cells have unique genes crucial for hair growth.

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.

Hair-derived material is safe and effective for skin filling.

Nevus psiloliparus lacks mature hair follicles but keeps other skin structures intact.

The lump on a woman's scalp was a rare, potentially cancerous tumor from the hair follicle, not a common cyst.

Clobetasol nanocarriers can be effectively delivered to hair follicles, with uptake improved by massage and affected by particle type.

Some skin growths with mucin can form hair follicles and resemble skin cancer, but a special stain can help tell them apart.