research Hair Follicle Aging Is Driven by Transepidermal Elimination of Stem Cells via COL17A1 Proteolysis
Hair loss and aging are caused by the breakdown of a key protein in hair stem cells.
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research Biology of the Hair Follicle: The Basics
The document concludes that understanding hair follicle biology can lead to better hair loss treatments.
research Modulating Hair Follicle Size with Wnt10b/DKK1 During Hair Regeneration
Wnt10b makes hair follicles bigger, but DKK1 can reverse this effect.
research Expression of Anti-Aging Type-XVII Collagen (COL17A1/BP180) in Hair Follicle-Associated Pluripotent (HAP) Stem Cells During Differentiation
Hair stem cells produce a protein called COL17A1 that plays a key role in their development and is linked to hair thinning and baldness.
research Effects of UV-Induced Photoaging on the Hair Follicle Cycle of C57BL6/J Mice
UV exposure causes hair thinning, graying, and changes in hair growth cycles in mice.
research Hair Follicle Changes Following Intense Pulsed Light Axillary Hair Reduction: Histometrical, Histological, and Immunohistochemical Evaluation
Intense pulsed light treatment effectively reduces underarm hair by making hair follicles smaller and extending their resting phase.
research Fate Tracing of DNA-Damaged Hair Follicle Stem Cells and Their Seno-Differentiation Clearance Out of the Niche
Damaged hair follicle stem cells may leave the skin to help maintain youthfulness.
research Low Versus High Fluence Light-Induced Hair Removal: How Hair Follicle Ex Vivo Studies Translate Into Clinical Results
Higher fluence in hair removal damages hair follicles more, while lower fluence mimics natural hair regression, with long-term IPL treatments effectively reducing hair.
research Faculty Opinions Recommendation of Bald Scalp in Men With Androgenetic Alopecia Retains Hair Follicle Stem Cells but Lacks CD200-Rich and CD34-Positive Hair Follicle Progenitor Cells
Bald men with male pattern baldness still have hair stem cells, but lack certain cells needed for hair growth.
research Faculty Opinions Recommendation of Bald Scalp in Men With Androgenetic Alopecia Retains Hair Follicle Stem Cells but Lacks CD200-Rich and CD34-Positive Hair Follicle Progenitor Cells
Bald men with male pattern baldness still have hair stem cells, but lack certain cells needed for hair growth.
research Faculty Opinions Recommendation of Bald Scalp in Men With Androgenetic Alopecia Retains Hair Follicle Stem Cells but Lacks CD200-Rich and CD34-Positive Hair Follicle Progenitor Cells
Bald men with male pattern baldness still have hair stem cells, but lack certain cells needed to grow hair.
research Miniaturized Hairs Maintain Contact With the Arrector Pili Muscle in Alopecia Areata but Not in Androgenetic Alopecia: A Model for Reversible Miniaturization and Potential for Hair Regrowth
Miniaturized hairs stay connected to muscle in alopecia areata, allowing possible regrowth, but not in androgenetic alopecia.
research Androgenetic Alopecia: Modeling Progression and Regrowth
AGA causes hair loss through follicle miniaturization and hair cycle changes; regrowth depends on anagen initiation in kenogen follicles.
research Male Androgenetic Alopecia
Male androgenetic alopecia involves hair follicle miniaturization due to DHT, with potential treatments using inhibitors and blockers.
research Progressive Expression of PPARGC1α Is Associated with Hair Miniaturization in Androgenetic Alopecia
Increased PPARGC1α relates to hair thinning in common baldness.
research The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit
Ludwig pattern hair loss in women results from varying sensitivity in hair follicles, causing fewer visible hairs.
research Genetic and Molecular Aspects of Androgenetic Alopecia
Androgenetic alopecia is mainly caused by genetic factors and increased androgen activity, leading to hair follicle miniaturization.
research Comparative Transcriptome Profiling Provides New Insights Into Mechanisms of Androgenetic Alopecia Progression
AGA progression involves increased lipid synthesis, electron transport, and hair follicle miniaturization.
research Therapeutic Strategies for Treating Hair Loss
The conclusion is that we need more effective hair loss treatments than the current ones, and these could include new drugs, gene and stem cell therapy, hormones, and scalp cooling, but they all need thorough safety testing.
research A Missense Mutation in the P2RY5 Gene Leading to Autosomal Recessive Woolly Hair in a Syrian Patient
A gene mutation causes woolly hair in a Syrian patient.
research Pattern Hair Loss: Assessment of Microinflammation in Miniaturized and Terminal Hair Follicles Through Horizontal Histologic Sections
Microinflammation is more intense in smaller hair follicles and may be linked to hair loss.
research Female Pattern Hair Loss Possibly Caused by Tamoxifen: Androgen Receptor Expression in the Outer Root Sheath in the Affected Area
Tamoxifen may cause female hair loss by increasing androgen receptor expression.
research Estetrol Prolongs Anagen Ex Vivo: Does E4 Have Potential as a Novel Strategy to Treat Female Pattern Hair Loss?
Estetrol (E4) may help treat female pattern hair loss by prolonging hair growth.
research The Pathogenesis and Treatment Progress of Androgenic Alopecia
Future treatments for androgenic alopecia may focus on reactivating hair follicle stem cells and improving drug delivery.
research Alopecias: Practical Tips for the Management of Biopsies and Main Diagnostic Clues for General Pathologists and Dermatopathologists
The document concludes that understanding hair follicle histology and the hair cycle is crucial for diagnosing alopecia.
research Estetrol Prolongs Anagen in Healthy Female Scalp Hair Follicles by Positively Modulating Dermal Papilla Functions and Generation of Progenitor Stem Cells Ex Vivo
Estetrol may help prevent hair loss and promote hair growth in women.
research Overexpression of Cyclooxygenase-2 in the Skin of Adult Transgenic Mice Leads to Sebaceous Gland Hyperplasia and Thinning of Hair Shafts
Increasing COX-2 in mouse skin causes bigger sebaceous glands and thinner hair, but stopping COX-2 can reverse hair thinning.
research Pediatric Dermatology Photoquiz: A 14-Year-Old Boy with Abrupt-Onset Hair Changes
A 14-year-old boy was diagnosed with a rare hair condition that may lead to hair thinning and has no known effective treatments.
research Breakthroughs in the Diagnosis and Treatment of Male and Female Pattern Hair Loss
New methods can diagnose hair loss by examining the scalp and can treat it with a mix of oral and topical medications, along with cosmetic procedures like hair transplants.
research Sequential Cyclic Changes of Hair Roots Revealed by Dermoscopy Demonstrate a Progressive Mechanism of Diffuse Alopecia Areata Over Time
Dermoscopy shows that diffuse alopecia areata progresses through specific hair growth stages.