6 citations
,
September 2022 in “Frontiers in pharmacology” In this study, Epimedii Folium extract was found to enhance melanin production and promote pigmentation through mechanisms involving the MAPK/ERK1/2 pathway in both in vitro and in vivo models.
140 citations
,
August 2010 in “Pigment Cell & Melanoma Research” This article discusses mouse genetic studies to explore factors influencing melanogenesis, highlighting pH and cysteine's roles, and proposes a hypothesis for human hair color diversity; it reports no new results.
6 citations
,
September 2010 in “Pigment Cell & Melanoma Research” This article discusses the roles of different proteins in melanogenesis and proposes a hypothesis to explain the diversity of human hair pigmentation, but it reports no new experimental results.
450 citations
,
January 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” This article reviews follicular melanogenesis, detailing how melanin synthesis and its regulation in hair follicles depend on a complex interplay of cellular and molecular mechanisms, but reports no new clinical findings.
138 citations
,
June 2023 in “Molecules” This review examines various skin pigmentation disorders, their causes, and potential treatments, detailing 25 plants, 4 marine species, and 17 clinically tested topical and oral medications for managing these conditions.
75 citations
,
January 2009 in “International journal of trichology” This review examines the differential aging of melanocytes in hair follicles and skin, and reports no new findings; the authors suggest further research is needed to understand these processes.
60 citations
,
October 2010 in “Molecular Imaging and Biology” This study observed that skin pigmentation significantly attenuates bioluminescent signals in C57Bl/6 mice, complicating quantitative optical imaging and requiring consideration in experimental design.
20 citations
,
February 2023 in “Biology” This review highlights the possibility of safely altering hair color through innovative cosmetics by targeting key biological processes in hair follicles, using insights from mammalian pigmentation studies and drug-induced hair color changes as potential pathways.
18 citations
,
March 2015 in “Journal of Investigative Dermatology” In this study, silencing BMAL1 and PER1 genes increased melanogenic activity in follicular and epidermal melanocytes, suggesting that peripheral circadian clocks may regulate melanin pigmentation.
16 citations
,
November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” This review discusses various aspects of hair color, including its formation and evolutionary variations, based on research presented at the 4th Intercontinental Meeting of Hair Research Societies 2004, without providing new experimental results.
10 citations
,
June 2021 in “Journal of Investigative Dermatology” GNPTAB gene is crucial for normal hair color in humans and mice.
240 citations
,
April 2011 in “Pigment Cell & Melanoma Research” This review discusses the identification and characteristics of melanocyte stem cells, emphasizing their role in hair pigmentation, greying, and skin repigmentation, but reports no new research findings.
60 citations
,
January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that inhibiting PKC-β activity with bisindolylmaleimide reduces pigmentation in the skin and hair of guinea pigs and mice by preventing tyrosinase activation.
53 citations
,
November 1997 in “Journal of Forensic Sciences” This study found that codeine incorporation in guinea pig hair varied with pigmentation and was highest in black hair, suggesting the role of eumelanins in drug binding.
17 citations
,
May 2007 in “Forensic Science Medicine and Pathology” This study reported that clozapine and its metabolite showed a preference for binding to pigmented hair, but were also detectable in non-pigmented hair of patients with Parkinson's, with high correlations between dose and hair concentration.
12 citations
,
May 2023 in “EMBO reports” In this study with organ-cultured human scalp hair follicles, high mTORC1 activity correlated with gray/white hair and reduced pigmentation, while inhibiting mTORC1 with rapamycin increased hair growth and pigmentation, suggesting mTORC1 inhibition could be a strategy for treating hair depigmentation and loss.
9 citations
,
July 2022 in “Cell reports” This study found that Sox2 within dermal papilla cells in the hair follicle regulates hair pigmentation, influencing the type and production of melanin.
7 citations
,
November 2011 in “Skin Research and Technology” The authors observed that the patterned melanoderma on the hairless scalp of fair-skinned Caucasian men with androgenic alopecia resembled similar patterns seen on facial skin.
2 citations
,
May 2023 in “Photobiomodulation, photomedicine, and laser surgery” This editorial reviews how photobiomodulation therapy might effectively treat both hyperpigmentation and depigmentation skin disorders, but reports no new clinical results.
2 citations
,
January 2002 This study investigated the pigments and cells causing discoloration in stasis dermatitis but did not clarify the role of melanin or melanocytes in this condition.
1 citations
,
June 2011 in “InTech eBooks” This review discusses the role of melanocytes in skin pigmentation and UV protection, explaining their interactions with keratinocytes and highlighting their involvement in processes like melanin transfer and melanoma development, but reports no new results.
November 2021 in “Natural product research” This study observed that the aqueous extract of roasted Alocasia macrorrhizos tubers led to hair follicle repigmentation and reduced epidermal thickness in a murine model of Vitiligo.
November 2021 in “CRC Press eBooks” This review discusses the genetic and metabolic factors influencing hair pigmentation, as well as conditions leading to hypo- or depigmented hair, and reports no new experimental findings.
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” This study demonstrates that extracellular ATP induced by UV radiation promotes melanin production in human melanocytes, suggesting ATP-induced purinergic signaling may influence skin pigmentation.
September 2012 in “British Small Animal Veterinary Association eBooks” This article discusses pigmentation disorders in veterinary dermatology, focusing on the role of melanogenic pigmentation, and reports no new research results.
81 citations
,
October 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that silencing clock genes BMAL1 or PER1 in human hair follicles increased melanin content and melanocyte activity, suggesting these genes influence pigmentation.
13 citations
,
March 2020 in “Frontiers in cell and developmental biology” This study suggests that 3,4,5-tri-O-caffeoylquinic acid activates β-catenin to enhance pigmentation in mouse hair follicles, human melanocytes, and melanoma cells during the hair cycle's growth phase.
2 citations
,
September 2024 in “Animals” In this study, researchers identified key genes such as EDNRB2, GPNMB, TRPM1, TYR, and DCT that regulate melanin deposition in the breast muscles of black-boned chickens, contributing to their unique pigmentation during embryonic development.
2 citations
,
September 2022 In this study, researchers found that a PER3 gene SNP may be pathogenic for a new subtype of dyschromatosis universalis hereditaria, especially when combined with a SASH1 mutation.
6 citations
,
October 2019 in “Jo'jig gonghag gwa jaesaeng uihag/Tissue engineering and regenerative medicine” This study found that rice bran ash extract enhanced melanin biosynthesis-related protein expression in a 3D hair follicle-like tissue model and hair follicle organ culture, suggesting potential for future research in melanogenesis.