Formation and Structure of Human Hair

The document explored various aspects of human hair formation and structure, focusing on the keratinization processes of epidermal keratinocytes and the histochemistry of hair follicles. It examined the role of keratin proteins and their genes in influencing hair growth, structure, and properties. The study also detailed the morphology and histochemistry of human hair, including the structural features and spatial arrangements of protein chains in hair and epidermal keratin intermediate filaments. Additionally, it discussed the factors affecting hair color, such as hair melanin, and analyzed the integral lipids of hair and the stratum corneum, as well as the sulfur amino acid composition of hair.