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    Glossary Anagen Hair Follicles

    phase where hair actively grows

    Anagen hair follicles, also known as growing hair follicles or active hair follicles, are in the phase of the hair growth cycle where the hair is actively growing. This phase can last anywhere from 2 to 7 years, during which the hair shaft is continuously produced by the follicle, resulting in longer hair. This is the most prolonged phase of the hair cycle and is crucial for determining the length of the hair.

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    1. 883 Hair follicle bulb developed as 3D scaffold free microtissue Journal of Investigative Dermatology · 2017
    2. Exposure to gamma-rays at the telogen phase of the hair cycle inhibits hair follicle regeneration at the anagen phase in mice International Journal of Radiation Biology · 2013 · 6 citations
    3. Exposure to gamma-rays at the telogen phase of the hair cycle inhibits hair follicle regeneration at the anagen phase in mice Institutional Repositories DataBase (IRDB) · 2013
    4. Exposure to gamma-rays at the telogen phase of the hair cycle inhibits hair follicle regeneration at the anagen phase in mice Institutional Repositories DataBase (IRDB) · 2013
    5. Do Hair Bulb Melanocytes Undergo Apotosis During Hair Follicle Regression (Catagen)? 1998 · 130 citations
    6. Beyond the Epidermal-Melanin-Unit: The Human Scalp Anagen Hair Bulb Is Home to Multiple Melanocyte Subpopulations of Variable Melanogenic Capacity 2023
    7. Histologic Study of the Regeneration Process of Human Hair Follicles Grafted onto SCID Mice after Bulb Amputation Journal of Investigative Dermatology Symposium Proceedings · 2001 · 19 citations
    8. Stress-sensing in the human greying hair follicle: Ataxia Telangiectasia Mutated (ATM) depletion in hair bulb melanocytes in canities-prone scalp Scientific reports · 2020 · 14 citations
    9. Beyond the Epidermal-Melanin-Unit: The Human Scalp Anagen Hair Bulb Is Home to Multiple Melanocyte Subpopulations of Variable Melanogenic Capacity International Journal of Molecular Sciences · 2023
    10. Temporary hair removal by low fluence photoepilation: Histological study on biopsies and cultured human hair follicles Lasers in surgery and medicine · 2008 · 134 citations
    11. Hair follicle stem cells: Walking the maze European Journal of Cell Biology · 2007 · 165 citations
    12. The effects of gamma rays on the regeneration of hair follicles are carried over to later hair cycles International Journal of Radiation Biology · 2015 · 5 citations
    13. Supplementary Material for: Life of the B10 mouse: a view from the hair follicles and tissue stem cells Figshare · 2023
    14. Hair Follicle Immune Privilege Revisited: The Key to Alopecia Areata Management 2017 · 102 citations
    15. In vitro effects of testosterone, dihydrotestosterone and estradiol on cell growth of human hair bulb papilla cells and hair root sheath fibroblasts. Acta Dermato Venereologica · 1990 · 22 citations
    16. Sex Hormones and Antiandro Growth of Dermal Papilla H ens Influence In Vitro Ce Is and Outer Root Sheath Keratinocytes of Human Hair Follicles 1993
    17. Growth and viability of Liaoning Cashmere goat hair follicles during the annual hair follicle cycle Genetics and Molecular Research · 2014 · 10 citations
    18. Extremely Low-Frequency Electromagnetic Fields Increase Cytokines in Human Hair Follicles through Wnt/β-Catenin Signaling Biomedicines · 2022 · 2 citations
    19. Hot water extract of oriental melon leaf promotes hair growth and prolongs anagen hair cycle: In vivo and in vitro evaluation Food Science and Biotechnology · 2016 · 3 citations
    20. LB1010 Ashwagandha-derived exosome-like nanoparticles significantly promote human hair growth ex vivo and in vivo by stimulating the production of the anagen promoting growth factor VEGF-A Journal of Investigative Dermatology · 2024
    21. Basonuclin as a cell marker in the formation and cycling of the murine hair follicle Differentiation · 1998 · 27 citations
    22. Basonuclin as a cell marker in the formation and cycling of the murine hair follicle Differentiation · 1998
    23. Keratin Expression Provides Novel Insight into the Morphogenesis and Function of the Companion Layer in Hair Follicles Journal of Investigative Dermatology · 2006 · 38 citations
    24. Removal of Intact Hair Papilla and Connective Tissue Sheath by Plucking Anagen Hairs**From the Department of Dermatology of the University of Hamburg, Germany. Journal of Investigative Dermatology · 1967 · 7 citations
    25. DNA determination of human hair bulbs in normal and androgenetic alopecia Journal of Cutaneous Pathology · 1994 · 1 citations
    26. 0980 Tanshinone capsule enhances hair follicle regeneration in a mouse model of androgenetic alopecia via IGF1 and Wnt/β-catenin pathway Journal of Investigative Dermatology · 2026
    27. 576 A preliminary study of melanogenic markers in the differentiation of the human hair follicle melanin unit 2022
    28. EP-2270: Novel protective effect of prostaglandin for timely hair follicle regeneration from radiation injury Radiotherapy and Oncology · 2018
    29. Sustained Human Hair Follicle Growth Ex Vivo in a Glycosaminoglycan Hydrogel Matrix International journal of molecular sciences · 2019 · 9 citations
    30. Melatonin and the hair follicle Journal of pineal research · 2007 · 109 citations