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.
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research Control of Human Hair Growth by Neurotrophins: Brain-Derived Neurotrophic Factor Inhibits Hair Shaft Elongation, Induces Catagen, and Stimulates Follicular Transforming Growth Factor β2 Expression
Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.
research Tectoridin Stimulates the Activity of Human Dermal Papilla Cells and Promotes Hair Shaft Elongation in Mouse Vibrissae Hair Follicle Culture
Tectoridin helps human hair cells grow and makes mouse hair longer, suggesting it could treat hair loss.
research Scanning electron microscopy of ibrutinib-induced hair shaft changes
research Diffuse congenital hypotrichosis simplex with associated hair shaft fragility
The document's conclusion cannot be provided because the document is not available or cannot be understood.
research Supplementary Material for: Case report - Hair shaft normalization and hair growth in SPINK5-syndromic epidermal differentiation disorder (Netherton syndrome) while on treatment with dupilumab: a novel therapeutic approach for Trichorrhexis invaginata
research Supplementary Material for: Case report - Hair shaft normalization and hair growth in SPINK5-syndromic epidermal differentiation disorder (Netherton syndrome) while on treatment with dupilumab: a novel therapeutic approach for Trichorrhexis invaginata
research Comparative Studies of the Diameters of Hairshafts in Anagen and in Telogen Phases in Male Adults Without Alopecia and in Male Adults With Androgenetic Alopecia
research Dietary management reverses grooving and abnormal polarization of hair shafts in argininosuccinase deficiency
A special diet can fix hair problems in argininosuccinase deficiency.
research Quantitation of human mitochondrial DNA and whole mtGenomes sequencing of fingernail/hair shaft samples
Mitochondrial DNA from nails and hair can be effectively analyzed for forensic use.
research 13-cis-Retinoic Acid Affects Sheath-Shaft Interactions of Equine Hair Follicles in Vitro
research Effective Penetration of the Oxidized Keratin‐Rebonding Materials Into Hair Shafts Based on Charge Conversion (Adv. Healthcare Mater. 12/2026)
research A Case of Trichothiodystrophy with a Low Sulfur Level in the Hair Shafts
research Effects of ultraviolet B radiation on physicochemical properties of human hair shaft
UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.
research Decision letter for "Advantages of Incomplete Digestion in Human Hair Shaft Proteomics, a Focus on Cuticular Keratins"
research Author response for "Advantages of Incomplete Digestion in Human Hair Shaft Proteomics, a Focus on Cuticular Keratins"
research Decision letter for "Advantages of Incomplete Digestion in Human Hair Shaft Proteomics, a Focus on Cuticular Keratins"
research Review for "Advantages of Incomplete Digestion in Human Hair Shaft Proteomics, a Focus on Cuticular Keratins"
research Review for "Advantages of Incomplete Digestion in Human Hair Shaft Proteomics, a Focus on Cuticular Keratins"
research In-Situ Imaging Mass Spectrometry Analysis of Melanin Granules in the Human Hair Shaft
research A morphometric and histologic study of the scalp in psoriasis. Paradoxical sebaceous gland atrophy and decreased hair shaft diameters without alopecia.
Psoriasis on the scalp causes smaller oil glands and thinner hair but doesn't lead to hair loss.
research Levonorgestrel effects on serum androgens, sex hormone–binding globulin levels, hair shaft diameter, and sexual function
research The Hair Follicle as a Dynamic Miniorgan
Hair follicles are complex, dynamic mini-organs that help us understand cell growth, death, migration, and differentiation, as well as tissue regeneration and tumor biology.
research The hair cycle
The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.
research Inhibition of Bmp signaling affects growth and differentiation in the anagen hair follicle
Inhibiting Bmp signaling disrupts hair growth and differentiation.
research WNT Signaling in the Control of Hair Growth and Structure
The research shows that a gene called Wnt3 affects hair growth and structure, causing short hair and balding when overactive.
research Keratin 17 modulates hair follicle cycling in a TNFα-dependent fashion
Keratin 17 is crucial for normal hair growth by regulating hair cycle transitions with TNFα.
research The Dermal Papilla: An Instructive Niche for Epithelial Stem and Progenitor Cells in Development and Regeneration of the Hair Follicle
The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.
research The Lysosomal Protease Cathepsin L Is an Important Regulator of Keratinocyte and Melanocyte Differentiation During Hair Follicle Morphogenesis and Cycling
Cathepsin L is essential for normal hair growth and development.
research Hair anatomy for the clinician
Understanding hair follicle anatomy helps diagnose hair disorders.