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research 576 A preliminary study of melanogenic markers in the differentiation of the human hair follicle melanin unit
The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
research A case of systemic mastocytosis - an ultrastructural and immunohistochemical study of the dermal mast cells in relation to activation of the epidermal melanin unit
Prednisone reduces organ mast cell infiltration but does not alter the abnormal appearance of mast cells in systemic mastocytosis.
research Human hair follicles display a functional equivalent of the hypothalamic‐pituitary‐adrenal (HPA) axis and synthesize cortisol
Human hair follicles can produce cortisol like the body's stress response system.
research On the etiology of vitiligo and gray hair
Melanocytes are destroyed by factors needed for melanin production, causing vitiligo and gray hair.
research Melanocyte stem cells: a melanocyte reservoir in hair follicles for hair and skin pigmentation
Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.
research Induction of the hair growth phase in postnatal mice by localized transient expression of Sonic hedgehog
Activating the Sonic hedgehog gene in mice can start the hair growth phase.
research Towards a “free radical theory of graying”: melanocyte apoptosis in the aging human hair follicle is an indicator of oxidative stress induced tissue damage
Oxidative stress causes hair to gray by damaging and killing pigment cells.
research Melanogenesis is coupled to murine anagen: Toward new concepts for the role of melanocytes and the regulation of melanogenesis in hair growth
Hair color production in mice is closely linked to the hair growth phase and may also influence hair growth itself.
research Formation and Structure of Human Hair
Human hair growth and structure are influenced by keratin proteins, genes, melanin, and lipids.
research Melanogenesis During the Anagen-Catagen-Telogen Transformation of the Murine Hair Cycle
Hair stops producing melanin as it transitions from the growth phase to the resting phase.
research Theoretical considerations in laser hair removal
Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.
research Skin Pigmentation Types, Causes and Treatment—A Review
Skin pigmentation varies due to genetics, UV exposure, and drugs, with treatments available but requiring medical advice.
research Temporary hair removal by low fluence photoepilation: Histological study on biopsies and cultured human hair follicles
Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.
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 Thyroid Hormones Directly Alter Human Hair Follicle Functions: Anagen Prolongation and Stimulation of Both Hair Matrix Keratinocyte Proliferation and Hair Pigmentation
Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.
research Hair Growth Cycle Affects Hair Follicle Destruction by Ruby Laser Pulses
Ruby laser pulses best destroy hair follicles during the growth phase and effectiveness varies with laser intensity; melanin is key for targeting, and timing treatments can improve results.
research Melanogenesis Is Coupled to Murine Anagen: Toward New Concepts for the Role of Melanocytes and the Regulation of Melanogenesis in Hair Growth.
Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.
research A Guide to Assessing Damage Response Pathways of the Hair Follicle: Lessons From Cyclophosphamide-Induced Alopecia in Mice
The document concludes that assessing hair follicle damage due to cyclophosphamide in mice involves analyzing structural changes and suggests a scoring system for standardized evaluation.
research Genome-wide association meta-analysis of individuals of European ancestry identifies new loci explaining a substantial fraction of hair color variation and heritability
New genetic locations explain much of hair color variation in Europeans.
research Melanocyte Subpopulation Turnover During the Human Hair Cycle: An Immunohistochemical Study
Melanocyte activity in hair follicles is linked to the hair growth cycle, being active in growth phases and inactive in rest phases.
research Laser hair removal
Laser hair removal has advanced to effectively reduce hair for various skin types and hair colors.
research The Peripheral Clock Regulates Human Pigmentation
Certain genes control the color of human hair by affecting pigment production.
research Aging of the hair follicle pigmentation system
Hair grays due to oxidative stress and fewer functioning melanocytes.
research Development of Heritable Melanoma in Transgenic Mice
The transgene likely activated an oncogene or interrupted a tumor suppressor gene, causing melanoma in mice.
research A clinical overview of hair removal using lasers and light sources
Lasers and light sources can effectively remove hair, work best on fair skin with dark hair, and usually need multiple treatments.
research About photo-damage of human hair
We don't fully understand how sunlight damages different types of hair.
research Vitiligo
Vitiligo causes white skin patches and is linked to autoimmune issues.
research Use of Condensed Nanofat Combined With Fat Grafts to Treat Atrophic Scars
Condensed nanofat with fat grafts effectively improves atrophic facial scars.
research Graying of Hair Produced by Ingestion of Phenylthiocarbamide
Eating phenylthiocarbamide made all the rats' hair go gray, but some returned to their original color after stopping.