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The study concludes that certain domains in Clostridium histolyticum enzymes are structurally unique, bind calcium to become more stable, and play distinct roles in breaking down collagen, with potential applications in medicine and drug delivery.

The medulla in Asian scalp hair has a tubular structure that allows ions and large molecules to flow through it.

Curly and straight hair differ in how their internal fibers are arranged.

Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.

Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.

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

Root hairs help us understand plant growth and the role of the actin cytoskeleton.

Tianzhu white yak hair varies in structure and density between fuzz and coarse hair.

Japanese women's curved hair has an uneven internal structure and varying amino acid composition.

The article concludes that using the single-scar technique for hair transplants can result in a more attractive scar and that concerns about the technique can be managed with proper methods.

The single-scar technique in hair transplantation minimizes scarring and preserves hairs for future use, with proper training overcoming its perceived drawbacks.

The commentary suggests that using a single-scar technique for hair transplants can give good cosmetic results, but some surgeons hesitate to use it despite ways to address their concerns.

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

The cyst had unusual keratin spherules and resembled bone marrow.

Actin filaments help stabilize and integrate cell membranes during transfer.

Dr. Russell Knudsen's system classifies hair grafts by class, shape, and size for clearer communication in hair restoration surgery.

Hair's strength and flexibility come from its protein structure and molecular interactions.

Wool follicles are complex, involving interactions between different cell types and structures.

Hair follicle shape determines hair type: curly, straight, or in-between.

A unique type of complex cyst was found on a man's scrotum.

Japanese women's curved hair has an uneven internal structure and varied amino acid composition.

The alpha-helix was confirmed as a key structure in proteins.

Actin filaments help stabilize and reshape cell membranes.

Oxidized trichocyte keratin has a helical dislocation in its structure.

Capitate trichomes have more endoplasmic reticulum and vacuoles, while peltate trichomes have more plastids and larger subcuticular spaces.

The conclusion introduces a new way to classify skin cysts using their shape and genetic markers.

The document concludes that modern ocular cosmetics enhance beauty and eyelash health, with safe practices and regulations being important.

Cutting scalp biopsies in consecutive slices improves diagnosis of hair loss conditions.

New subcision technique with a bent needle and syringe improves ease, effectiveness, and comfort for treating acne scars.