research Human hair follicle: reservoir function and selective targeting
The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.
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research Penetration Profile of Microspheres in Follicular Targeting of Terminal Hair Follicles
Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.
research Dose-dependent and long term effects of RU58841 (androgen receptor blocker) on hair growth in the bald stumptailed Macaque.
RU58841, an androgen receptor blocker, significantly increased hair density, thickness, and length in monkeys when applied topically daily for several months.
research Cellular and developmental aspects of androgenetic alopecia
Androgenetic alopecia involves complex hair follicle changes and knowledge gaps remain.
research Determination of the cuticula thickness of human and porcine hairs and their potential influence on the penetration of nanoparticles into the hair follicles
Nanoparticles penetrate hair follicles better when their size matches the cuticula thickness.
research Effects of platelet-rich plasma application on hair follicle count, telogen/anagen ratio, and miniaturized hair ratio in patients with androgenic alopecia: alone or in combination with other treatments
PRP improves hair growth in androgenic alopecia, especially when combined with minoxidil.
research Selective follicular targeting by modification of the particle sizes
Medium-sized particles penetrate hair follicles better than smaller or larger ones, which could improve delivery of skin treatments.
research Development of a novel, clinically-relevant model for investigating factors that stimulate human hair growth
Testosterone stimulates growth in intermediate hair follicles, but this can be blocked by cyproterone acetate.
research The Evolution of the Promise of Hair Cloning: How Hair Cell Cloning Will Fit Into Your Practice
Hair cell cloning could potentially rejuvenate shrinking hair follicles, allowing for lifelong hair maintenance.
research Transient expression of keratin 19 is induced in originally negative interfollicular epidermal cells by adhesion of suspended cells.
Keratin 19 expression in certain skin cells is temporary and not a reliable stem cell marker.
research Chemical agents and peptides affect hair growth
Certain chemicals and peptides can promote hair growth or prevent baldness.
research Clinical, trichoscopic, and histopathologic characteristics of patients with alopecia and hypothyroidism: An observational study
Hypothyroidism patients with hair loss typically have thinning hair, smaller hair follicles, and normal hair shedding.
research Characterization of X‐linked hypohidrotic ectodermal dysplasia (XL‐HED) hair and sweat gland phenotypes using phototrichogram analysis and live confocal imaging
People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.
research Ultrastructural Characteristics of Neonate Scalp Hair
Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.
research c-Myc activation in transgenic mouse epidermis results in mobilization of stem cells and differentiation of their progeny
c-Myc activation in mouse skin increases sebaceous gland growth and affects hair follicle development.
research Cyclosporin A-induced hair growth in mice is associated with inhibition of calcineurin-dependent activation of NFAT in follicular keratinocytes
Cyclosporin A helps mice grow hair by blocking a specific protein activity in skin cells.
research Phospholipid–polymer hybrid nanoparticle-mediated transfollicular delivery of quercetin: prospective implement for the treatment of androgenic alopecia
Quercetin-loaded nanoparticles can penetrate skin, minimize hair loss, and promote hair regrowth, showing slightly better results than a marketed product.
research Expression of the L-Fucose Moiety on Infrainfundibular Follicular Keratinocytes of Terminal Follicles, Its Decreased Expression on Vellus and Indeterminate Follicles of Androgenetic Alopecia, and Re-Expression in Drug-Induced Hair Regrowth
Sugar molecule helps hair growth, less in balding, returns with treatment.
research Scalable production of controllable dermal papilla spheroids on PVA surfaces and the effects of spheroid size on hair follicle regeneration
Larger spheroids improve hair growth, but size doesn't guarantee thicker hair.
research Control of hair growth and follicle size by VEGF-mediated angiogenesis
VEGF helps hair grow and determines follicle size by increasing blood vessel growth.
research Characterisation of cell cycle arrest and terminal differentiation in a maximally proliferative human epithelial tissue: Lessons from the human hair follicle matrix
CIP/KIP proteins help stop cell division and support hair growth.
research Viable terminal scalp hair follicles constitute a necessary and sufficient biological end‐organ that conditions clinical efficacy of finasteride in males with male pattern hair loss without implying reversal of miniaturized follicles
Finasteride works for hair loss by maintaining existing hair follicles, not reversing miniaturization.
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 Maintenance of optimised hair growth from viable terminal scalp hair follicles at baseline with oral finasteride in male pattern hair loss and first evidence of a “drug dependency” and a post-finasteride “rebound effect”.
Finasteride helps hair growth but stopping it causes faster hair loss.
research 872 Dermal Wnt/β-catenin signaling controls hair follicle dermal condensate size during development
Dermal Wnt/β-catenin signaling is important for the proper size and development of hair follicles.
research Quantification of hair follicle parameters using computer image analysis: A comparison of androgenetic alopecia with normal scalp biopsies
Hair follicles are smaller in people with androgenetic alopecia compared to those with normal scalps.
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.
research Culture of the human pilosebaceous unit, hair follicle and sebaceous gland
The article concludes that developing in vitro models for human hair structures is important for research and reducing animal testing, but there are challenges like obtaining suitable samples and the models' limitations.
research Intermediate hair follicles: a new more clinically relevant model for hair growth investigations
Intermediate hair follicles are a better model for studying hair growth and testing hair loss treatments.
research Hidradenitis Suppurativa/Acne Inversa/Dissecting Terminal Hair Folliculitis
Hidradenitis Suppurativa is a chronic skin condition best treated early with surgery for better outcomes and less recurrence.