research Perspectives on Hair Evolution Based on Some Comparative Studies on Vertebrate Cornification
Hair in mammals likely evolved from glandular structures, not scales.
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30-60 / 1000+ results research Discrete Nanoscale Distribution of Hair Lipids Fails to Provide Humidity Resistance
Hair lipids do not protect against humidity.
research A function for Rac1 in the terminal differentiation and pigmentation of hair
Rac1 is essential for proper hair structure and color.
research Age-associated thin hair displays molecular, structural and mechanical characteristic changes
Older thin hair is not just thinner but also has different shape, structure, and stiffness.
research Microanatomical Observations of Hair Characteristics of Red Fox (Vulpes vulpes), Golden Jackal (Canis aureus), and Gray Wolf (Canis lupus): A Comparative Study
Red fox, golden jackal, and gray wolf hairs have similar features but differ in length, thickness, and inner structure.
research Hard X-ray Microscopic Images of the Human Hair
High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.
research The heart of the hair fiber: How the inner structure of the coat reflects adaptive variation across color, sex, age, and body region in dromedary camels (Camelus dromedarius)
Camel hair structure, not color, helps camels stay cool in the desert.
research The first observation of calcium oxalate accumulation in human hair
Calcium oxalate was found in human hair and could help detect certain health conditions.
research Quantifying whole human hair scalp fibres of varying curl: A micro‐computed tomographic study
Human hair varies in structure based on curl type, with high curl hair showing the most differences.
research The Trotter collection: A review of Mildred Trotter 's hair research and an update for studies of human variation
Hair traits vary widely and are not reliable indicators of ancestry.
research Genetic interplays between Msx2 and Foxn1 are required for Notch1 expression and hair shaft differentiation
Msx2 and Foxn1 are both crucial for hair growth and health.
research Premature termination of hair follicle morphogenesis and accelerated hair follicle cycling in Iasi congenital atrichia (fzica) mice points to fuzzy as a key element of hair cycle control
The fuzzy gene is crucial for controlling hair growth cycles.
research Hair Morphology in Androgenetic Alopecia
Abnormal cuticle and hair shaft medulla cause hair loss in androgenetic alopecia; sonography helps diagnose and manage it.
research Microscopic identification of the remnant hair or feather of five animal drug components in Shenrongbian pill
The study found unique microscopic features for hair or feather in five animal ingredients in Shenrongbian pill.
research Ziehl-Neelsen's stain for skin sections to show wool and hair follicles
Ziehl-Neelsen's stain helps identify different parts of hair in sheep and goats.
research Normal Hair Growth in Children
Children's hair grows in different types from before birth through puberty, with growth rates and characteristics varying by age, sex, and race.
research Androgen Regulation of the Human Hair Follicle: The Type I Hair Keratin hHa7 Is a Direct Target Gene in Trichocytes
The hHa7 gene is regulated by androgens in certain body hair, not scalp hair.
research Perspectives and Challenges of Hair Analysis
Hair is a complex organ, and understanding its detailed structure and growth phases is crucial for analyzing substances within it.
research Patterns of expression of trichocytic and epithelial cytokeratins in mammalian tissues. I. Human and bovine hair follicles
Human and bovine hair follicles have distinct cytokeratins specific to hair-forming cells.
research Activation of the Notch pathway in the hair cortex leads to aberrant differentiation of the adjacent hair-shaft layers
Notch pathway activation causes abnormal hair layer development.
research Analysis of the sheep trichohyalin gene: potential structural and calcium-binding roles of trichohyalin in the hair follicle.
Trichohyalin in sheep hair follicles may help with structure and calcium binding.
research Peptidylarginine Deiminase Isoforms Are Differentially Expressed in the Anagen Hair Follicles and Other Human Skin Appendages
PAD enzymes play a key role in hair growth and structure.
research Hair follicle differentiation: expression, structure and evolutionary conservation of the hair type II keratin intermediate filament gene family
Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.
research THE LOCALIZATION AND SIGNIFICANCE OF ARGININE AND CITRULLINE IN PROTEINS OF THE HAIR FOLLICLE
Arginine converts to citrulline in hair follicles as proteins harden.
research Evidence for various calcium sites in human hair shaft revealed by sub-micrometer X-ray fluorescence
The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.
research Exploring a biological tissue from atomic to macroscopic scale using synchrotron radiation: example of hair.
Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
research Serine-rich ultra high sulfur protein gene expression in murine hair and skin during the hair cycle.
Two specific genes are more active during hair growth in mice.
research Cosmetic assessment of the human hair by confocal microscopy
Confocal microscopy is better than scanning electron microscopy for studying hair in its natural state and understanding hair products' effects.
research Characterization of the proteins of guinea-pig hair and hair-follicle tissue
Guinea-pig hair and follicle proteins are mostly similar, but follicles have more group 2 proteins and fewer group 3 and 4 proteins.
research The Proteins of Normal and Aberrant Hair Keratins
Hair is mostly made of three protein types: helical, high-sulfur, and high-tyrosine.