research 5α-Reductase Activity in the Human Hair Follicle Concentrates in the Dermal Papilla
The enzyme that changes testosterone to a stronger form is mostly found in the part of the hair follicle called the dermal papilla.
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research Mind the Gender Gap: Does Prolactin Exert Gender and Site-Specific Effects on the Human Hair Follicle?
Prolactin may affect hair growth differently based on gender and scalp area.
research The Impact of Particle Size of Nanostructured Lipid Carriers on Follicular Drug Delivery: A Comprehensive Analysis of Mouse and Human Hair Follicle Penetration
400 nm particles penetrate hair follicles best, but mouse models aren't fully reliable for human studies.
research Vasoactive Intestinal Peptide, Whose Receptor-Mediated Signaling May Be Defective in Alopecia Areata, Provides Protection from Hair Follicle Immune Privilege Collapse
A substance called VIP might protect hair follicles from being attacked by the immune system, and problems with VIP signaling could lead to hair loss in alopecia areata.
research Squalene-Containing Nanostructured Lipid Carriers Promote Percutaneous Absorption and Hair Follicle Targeting of Diphencyprone for Treating Alopecia Areata
Squalene-based carriers improve delivery of a treatment to hair follicles for alopecia areata.
research Hair Follicle Immune Privilege and Its Collapse in Alopecia Areata
Hair follicles are normally protected from the immune system, but when this protection fails, it can cause hair loss in alopecia areata.
research Dermal Sheath Cells and Hair Follicle Regeneration
Dermal sheath cells can help grow new hair follicles and show promise in treating hair loss.
research Keep Quiet—How Stress Regulates Hair Follicle Stem Cells
Stress hormone corticosterone suppresses hair growth by affecting stem cell activity and Gas6 protein expression.
research Hair Follicle Associated Pluripotent Stem Cells Stimulate Hair Growth in Transplanted Mice
Stem cells from whiskers can be transplanted to stimulate hair growth.
research Hair Follicle Regeneration by Injection of Follicular Cells
Injecting follicular cells into skin can lead to the formation of new hair follicles.
research The Biology of Hair Follicles
Hair follicle biology advancements may lead to better hair growth disorder treatments.
research Hair Follicle Pigmentation: Mechanisms and Factors Influencing Melanin Production
Hair color is determined by melanin produced and transferred in hair follicles.
research Review of Hair Follicle Dermal Cells
Dermal cells are key in controlling hair growth and could potentially be used in hair loss treatments, but more research is needed to improve hair regeneration methods.
research Differences in Hair Follicle Dermal Papilla Volume Are Due to Extracellular Matrix Volume and Cell Number: Implications for the Control of Hair Follicle Size and Androgen Responses
Hair follicle size is mainly influenced by the number of cells and extracellular matrix volume, with cell number having a larger impact.
research Hair Anatomy for the Clinician
Understanding hair follicle anatomy helps diagnose hair disorders.
research Hairless Triggers Reactivation of Hair Growth by Promoting Wnt Signaling
The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.
research Methods in Hair Research: How to Objectively Distinguish Between Anagen and Catagen in Human Hair Follicle Organ Culture
A reliable system was developed to distinguish hair growth stages, aiding in identifying hair growth promoters or inhibitors.
research Gene Expression Profiling Gets to the Root of Human Hair Follicle Stem Cells
Human hair follicle stem cells can be isolated using specific markers for potential therapeutic use.
research The Role of Hair Follicle Immune Privilege Collapse in Alopecia Areata: Status and Perspectives
Alopecia areata may be treated by restoring hair follicle immune privilege and adjusting immune responses.
research The Role of the Microbiome in Scalp Hair Follicle Biology and Disease
The scalp's microorganisms significantly affect hair health and disease.
research Hair Follicle as a Target of Stress Hormones and Autoimmune Reactions
Stress hormones and autoimmune reactions can cause hair loss.
research Human Hair Follicle and Epidermal Melanocytes Exhibit Striking Differences in Their Aging Profile Involving Catalase
Hair follicle cells age faster and lose pigment due to less catalase, causing hair to turn gray.
research Chemotherapy Targets the Hair Follicle Vascular Network but Not the Stem Cells
Chemotherapy affects blood vessels in hair follicles, not stem cells, allowing hair regrowth.
research Gab1 and MAPK Signaling Are Essential in the Hair Cycle and Hair Follicle Stem Cell Quiescence
Gab1 protein is crucial for hair growth and stem cell renewal, and Mapk signaling helps maintain these processes.
research Hair Follicle Stem Cells: In Vitro and In Vivo Neural Differentiation
Hair follicle stem cells can become different cell types and may help treat neurodegenerative disorders.
research Costunolide Promotes the Proliferation of Human Hair Follicle Dermal Papilla Cells and Induces Hair Growth in C57BL/6 Mice
Costunolide helps human hair cells grow and can stimulate hair growth in mice.
research A Study of the Differentiation Products of the Hair Follicle Cells with the Electron Microscope
Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
research Autofluorescence in the Stem Cell Region of the Hair Follicle Bulge
Autofluorescence in hair follicle stem cells can interfere with studies but may help isolate these cells.
research Gene Network Analysis Reveals Candidate Genes Related to Hair Follicle Development in Sheep
Key genes crucial for sheep hair follicle development were identified, aiding fine wool breeding and human hair loss research.
research Keratin 71 Mutations: From Water Dogs to Woolly Hair
A mutation in the KRT71 gene causes a hair disorder by disrupting hair follicle structure and texture.