research Dermal papilla cell number specifies hair size, shape and cycling and its reduction causes follicular decline
More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.
Search
for
Sort by
Research
210-240 / 1000+ results 
research Skin and hair on-a-chip: in vitro skin models versus ex vivo tissue maintenance with dynamic perfusion
The Multi-Organ-Chip improves the growth and quality of skin and hair in the lab, potentially replacing animal testing.
research Conditional Disruption of Hedgehog Signaling Pathway Defines its Critical Role in Hair Development and Regeneration
The hedgehog signaling pathway is crucial for hair growth but not for the initial creation of hair follicles.
research Micro‐RNA‐31 controls hair cycle‐associated changes in gene expression programs of the skin and hair follicle
miR-31 regulates hair growth by controlling gene expression in hair follicles.
research Hair anatomy for the clinician
Understanding hair follicle anatomy helps diagnose hair disorders.
research Complex Hair Cycle Domain Patterns and Regenerative Hair Waves in Living Rodents
Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
research Biology of the wool follicle: an excursion into a unique tissue interaction system waiting to be re‐discovered
The article concludes that the wool follicle is a valuable model for studying tissue interactions and has potential for genetic improvements in wool production.
research Local circadian clock gates cell cycle progression of transient amplifying cells during regenerative hair cycling
Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.
research Modulation of Hair Growth with Small Molecule Agonists of the Hedgehog Signaling Pathway
Applying a special compound can promote hair growth without harmful side effects.
research Enhanced ectodysplasin-A receptor (EDAR) signaling alters multiple fiber characteristics to produce the East Asian hair form
A genetic change in the EDAR gene causes the unique hair traits found in East Asians.
research Size-dependent penetration of nanoemulsions into epidermis and hair follicles: implications for transdermal delivery and immunization
Smaller nanoemulsions can penetrate skin and hair follicles better, which may be useful for delivering drugs and vaccines through the skin.
research Human Female Hair Follicles Are a Direct, Nonclassical Target for Thyroid-Stimulating Hormone
Thyroid-stimulating hormone affects hair follicles but doesn't change hair growth or color.
research The Cytology and Cytochemistry of the Wool Follicle
Wool follicles are complex, involving interactions between different cell types and structures.
research The Keratins of the Human Beard Hair Medulla: The Riddle in the Middle
Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.
research Mast cell deficient and neurokinin-1 receptor knockout mice are protected from stress-induced hair growth inhibition
Certain mice without specific receptors or mast cells don't lose hair from stress.
research Characterization of a 190-Kilobase Pair Domain of Human Type I Hair Keratin Genes
The 190-kbp domain contains all human type I hair keratin genes, showing their organization and evolution.
research Roles of the Hedgehog Signaling Pathway in Epidermal and Hair Follicle Development, Homeostasis, and Cancer
The Hedgehog signaling pathway is important for skin and hair growth and can lead to cancer if it doesn't work right.
research Thyrotropin releasing hormone (TRH): a new player in human hair‐growth control
TRH stimulates human hair growth and extends the hair growth phase.
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 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 Age-induced hair greying - the multiple effects of oxidative stress
Hair greying is caused by oxidative stress damaging hair follicles and melanocytes.
research Analyses of regenerative wave patterns in adult hair follicle populations reveal macro-environmental regulation of stem cell activity
Hair follicle stem cells are controlled by their surrounding environment.
research Electrolysis and thermolysis for permanent hair removal
The document concludes that electrolysis and thermolysis can permanently remove hair but calls for better regulation to ensure safety, and notes a possibility of hair regrowth and rare complications.
research Cylindroma as Tumor of Hair Follicle Origin
Cylindromas likely originate from hair follicle stem cells, not sweat glands.
research The chemokine SDF-1/CXCL12 regulates the migration of melanocyte progenitors in mouse hair follicles
SDF-1/CXCL12 and its receptor CXCR4 are crucial for melanocyte movement in mouse hair follicles.
research Embryonic hair follicle fate change by augmented β-catenin through Shh and Bmp signaling
β-catenin, Shh, and Bmp signaling control hair follicle development.
research Ceramide Synthase 4 Regulates Stem Cell Homeostasis and Hair Follicle Cycling
Ceramide Synthase 4 is essential for normal hair growth and preventing hair loss.
research EEMCO Guidance for the Assessment of Hair Shedding and Alopecia
The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.
research Epithelial skirt and bulge of human facial vellus hair follicles and and associated Merkel cell-nerve complex
Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.
research To grow or not to grow: Hair morphogenesis and human genetic hair disorders
Genetic mutations can cause hair growth disorders by affecting key genes and signaling pathways.