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The study found that nerve signals are stronger when there are more connection points, but not necessarily denser, along the nerve's path in the spine.

Touch sensitivity in mouse skin decreases during hair growth due to changes in touch receptors.

Lipid metabolism affects wool fiber diameter in sheep.

Junctional proteins stabilize the inner root sheath and connect the companion layer in human hair.

BK and Kv4.2 channels help Merkel cells in rat whiskers sense touch.

Early onset baldness may be linked to thicker artery walls.

Psoriasis causes changes in certain keratins and shrinks sebaceous glands in the scalp.

Meis2 is essential for whisker development, independent of nerve involvement.

Harp seals have different innervation patterns in their whiskers, with lateral whiskers having more axons than medial ones.

MRI can effectively image skin structures noninvasively.

Protein analysis shows aging changes in scalp cell types from women.

Keratinous tissues have multiple structural layers, including ordered keratin and lipid granules.

The upper dermal sheath can regenerate hair in rats.

Healthy mitochondria in skin cells are essential for proper hair growth and skin cell interaction in mice.

The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.

Whiskers can form without sensory nerves or Foxd1, thanks to Meis2 in mesenchymal cells.

The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.

More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.

Genes and metabolites affect cashmere fiber thickness, which can improve cashmere quality.

Mouse skin glands need healthy nerves to grow properly during hair growth phases.

Particles similar in size to hair cells penetrate hair follicles better.

The skin basement membrane is specialized for different tissue interactions, important for hair growth and attachment.

A 2 mm needle is effective and precise for skin injections.

Dermal sheath cells help heal wounds by showing both skin and connective tissue traits.

Brown bear skin has two main layers, with the thickest skin on the back and thinnest on the belly.

Mammoth hair from different ages shows distinct surface textures and elemental compositions.

The study concluded that the developed models are effective for studying hair growth mechanisms and testing new treatments.

Scalp biopsies from dermatomyositis patients show chronic hair loss without scarring, with mucin and blood vessel changes being very common.