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Different types of hair loss in dogs and cats have various causes and treatments, with outcomes ranging from good to uncertain.

Alopecia in animals can be hereditary, congenital, or acquired, with treatments and outcomes varying widely.

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The model shows that factors like follicle shape and stiffness are key for hair growth and anchoring.

A new method extracts red dyes from wool without damaging it, although it slightly weakens the wool.

Researchers developed a less damaging way to extract red dyes from wool using EDTA and DMF, preserving the fiber's strength for further analysis.

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

Human hair medulla doesn't break down hydrogen peroxide, which may affect hair color formation.

Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.

High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.

Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.

The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.

Confocal microscopy is better than scanning electron microscopy for studying hair in its natural state and understanding hair products' effects.

Guinea-pig hair and follicle proteins are mostly similar, but follicles have more group 2 proteins and fewer group 3 and 4 proteins.

Chemical treatments and daily stresses damage hair, especially the cuticle layer.

Antler velvet hair and body hair of red deer have different structures that help with protection and insulation.

Bubble hair deformity may be caused by hair shaft trauma and can improve with gentle hair care.

Stretching damages Caucasian hair's structure more easily than Asian hair.

Lipids are crucial for healthy hair, protecting it from damage and breakage.

Mummy hair from the Taklamakan desert has calcium and phosphorus inside.

Oxidative hair dye changes hair color and structure but doesn't weaken it.

A more sensitive assay was developed to detect enzyme activity converting arginine to citrulline in hair follicles.

As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.

X-ray microscopy can non-invasively show hair structure changes after treatments, but it's less detailed than TEM and needs improvement.

Heating human hair creates hollow microtubes with smooth surfaces.

The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.

The study found unique microscopic features for hair or feather in five animal ingredients in Shenrongbian pill.

Red fox, golden jackal, and gray wolf hairs have similar features but differ in length, thickness, and inner structure.

Horse skin has a layered epidermis, a dermis with hair follicles, sweat and sebaceous glands, and is supplied by small arteries.