October 2023 in “Journal of the Endocrine Society” In this study, estetrol (E4) treatment was associated with increased hair growth in ex vivo human hair follicles, suggesting its potential as a treatment for hair loss disorders.
May 2023 in “Frontiers in Cell and Developmental Biology” This review outlines the potential of using human pluripotent stem cells for hair follicle bioengineering, detailing current HF morphogenesis and cycling knowledge, various cell sources, and strategies using iPSCs, while discussing the challenges and prospects for therapeutic use in addressing hair loss.
6 citations
,
May 2023 in “Drugs” This study reports that baricitinib was more effective than placebo in promoting hair growth in adults with severe alopecia areata after 36 weeks of treatment in clinical trials.
This comprehensive review analyzes androgenetic alopecia treatments, discussing the mechanisms, costs, efficacy, and safety of FDA-approved drugs like minoxidil and finasteride, as well as newer non-FDA-approved options that have shown effectiveness across various studies.
7 citations
,
February 2023 in “Inflammation and Regeneration” This study found that IL-1α promotes hair follicle regeneration and stem cell activation in an age-dependent manner by modulating inflammatory cells and oxidative stress in mice.
December 2022 in “Cureus” This review discusses the hormonal impact on hair growth and the relationship between endocrine disorders and hair changes, reporting no new clinical results.
8 citations
,
October 2022 in “Regenerative Therapy” This review discusses regenerative medicine approaches for treating alopecia, including mesenchymal stem cell therapies and platelet-rich plasma, but reports no new clinical results, emphasizing the need for further study.
2 citations
,
October 2022 in “Journal of Biomedical Science” This review discusses the potential of secretome derived from stem cells for treating alopecia areata and reports no new clinical results; the authors suggest the need for further human trials.
24 citations
,
August 2022 in “Immunity” This study found that control of Demodex mite colonization in mice required skin ILC2s and IL-13, highlighting their role in maintaining HF integrity and limiting mite overgrowth.
36 citations
,
August 2022 in “Frontiers in Cell and Developmental Biology” This article reviews the aging process of sebaceous glands, highlighting the role of intrinsic and extrinsic factors on their degradation and reporting no new clinical findings.
12 citations
,
August 2022 in “Stem cell reviews and reports” This study found that PBX1 overexpression reduces hair follicle-derived mesenchymal stem cell senescence and apoptosis by interacting with SIRT1 and PARP1, highlighting a potential mechanism for addressing aging-related diseases.
39 citations
,
March 2022 in “Nature Protocols” This study describes a protocol for generating hair-bearing skin organoids from human pluripotent stem cells, achieving full complexity resembling fetal skin tissue by day 130 in vitro.
5 citations
,
March 2022 in “Frontiers in Medicine” This review analyzed 17 recent clinical trials on platelet-rich plasma for androgenetic alopecia but reports no new clinical results; the authors seek a consensus on optimal PRP use.
14 citations
,
March 2022 in “Journal of Biomedical Science” In this study, Cyanidin 3-O-arabinoside was found to protect against DHT-induced dermal papilla cell senescence and mitochondrial dysfunction in androgenetic alopecia, restoring hair growth in mouse models.
2 citations
,
March 2022 in “Journal of Cosmetic Dermatology” This review found that topical finasteride has similar efficacy to oral finasteride in treating male and female pattern hair loss, with fewer systemic side effects, mainly causing localized scalp reactions like irritation and erythema.
6 citations
,
January 2022 in “Journal of Investigative Dermatology” This study found that androgen receptor signaling is linked to blood vessel regression in the dermal papilla of balding scalp, contributing to hair follicle miniaturization in androgenetic alopecia.
20 citations
,
January 2022 in “Oxidative Medicine and Cellular Longevity” This study found that intrinsic reactive oxygen species drive the hair follicle cycle progression through DNA damage and repair, apoptosis, and macrophage polarization, influencing hair loss and regeneration dynamics in mice.
January 2022 in “Springer eBooks” 
489 citations
,
November 2021 in “Signal Transduction and Targeted Therapy” This review discusses the composition, activation, and regulation of the JAK/STAT pathway and highlights its role and inhibitors in various diseases, but reports no new experimental results.
4 citations
,
November 2021 in “Frontiers in Cell and Developmental Biology” Aging causes hair loss and graying due to stem cell decline and changes in cell behavior and communication.
9 citations
,
November 2021 in “Frontiers in Cell and Developmental Biology” This study found that PBX1 overexpression reduces hair follicle-derived mesenchymal stem cell senescence and apoptosis by alleviating ROS-mediated DNA damage, rather than enhancing DNA repair.
20 citations
,
November 2021 in “Frontiers in cell and developmental biology” This review discusses the current state of research on skin organoids, highlighting their potential for replicating complex skin structures and comparing recent studies on stem cell microenvironments.
9 citations
,
November 2021 in “PubMed” This study found that FDA-approved low-level light/laser therapy devices significantly increased hair density in individuals with pattern hair loss compared to sham devices.
5 citations
,
October 2021 in “Frontiers in Cell and Developmental Biology” This study examined aging hair follicle stem cells in mice and found that inflammation reduction in dermal white adipose tissue can stimulate regenerative behavior, highlighting its role in hair follicle aging.
7 citations
,
August 2021 in “Heliyon” This study suggests that the herbal formulation Phyllotex™ may promote hair growth in androgenetic alopecia by enhancing cell proliferation and reducing oxidative stress and TGF-β1 expression in vitro.
31 citations
,
August 2021 in “Stem Cell Research & Therapy” This review examines the life cycle, biomarkers, and functions of hair follicle stem cells, emphasizing their role in hair loss therapy and other skin and hair disorders, but reports no new clinical results.
16 citations
,
June 2021 in “Journal of Dermatological Treatment” This study reported that while topical minoxidil exhibits hair regrowth in androgenetic alopecia, oral minoxidil 5 mg/day was more effective than topical forms after six months, with low doses also potentially effective for women and other hair loss types.
14 citations
,
June 2021 in “Journal of dermatological science” This study found that Argan press cake extracts stimulated hair growth and reduced inflammation and oxidative stress in human hair follicle dermal papilla cells, suggesting potential for anti-hair loss drug development.
10 citations
,
May 2021 in “Clinical, cosmetic and investigational dermatology” In this mouse study, UVA and UVB exposure led to hair follicle miniaturization, graying, and prolonged hair cycle duration, associated with changes in stem cells and increased Wnt signaling activity.
77 citations
,
March 2021 in “Nature” In this study, increased corticosterone from chronic stress prolonged hair follicle stem cell quiescence in mice, inhibiting regeneration, but restoring Gas6 expression overcame this inhibition.
12 citations
,
January 2021 in “Journal of Investigative Dermatology” This review discusses the role of telomere length dynamics in hair follicle biology and reports no new clinical findings, emphasizing the need for further research in humans.
1 citations
,
January 2021 in “Journal of Cutaneous and Aesthetic Surgery” This review indicates that low-level laser therapy may stimulate hair growth in both men and women with androgenetic alopecia, showing similar efficacy to minoxidil in some studies, but requires more robust evidence.
848 citations
,
October 2020 in “International Journal of Molecular Sciences” This review discusses the potential of platelet-rich plasma applications in regenerative medicine and explores recent progress and challenges in translating non-clinical PRP findings into human treatments, but reports no new clinical results.
1 citations
,
August 2020 in “Journal of Cosmetic Dermatology” This study suggests that the novel "After Minoxidil" spray improved styling ease and reduced greasiness in patients using topical minoxidil, which may enhance compliance and treatment efficacy.
77 citations
,
July 2020 in “Cell” This study found that sympathetic nerves and arrector pili muscles form a niche that modulates hair follicle stem cell activity, revealing their role in hair follicle regeneration.
86 citations
,
July 2020 in “International Journal of Molecular Sciences” This review discusses the role of Wnt/β-catenin signaling in hair follicle regeneration and highlights recent progress in developing hair loss treatments targeting this pathway, but reports no new clinical results.
425 citations
,
June 2020 in “Nature” Scientists created human skin with hair from stem cells, which could help treat hair loss and skin conditions.
20 citations
,
May 2020 in “Experimental Dermatology” This review discusses age-related changes in scalp skin and their potential effects on hair follicle aging, but reports no new clinical results, calling for further investigation.
23 citations
,
January 2020 in “Frontiers in Pharmacology” In this study, DHT was observed to have varying effects on hair follicle growth and related protein expression depending on concentration, with the Wnt/β-catenin pathway potentially playing a significant role.
260 citations
,
January 2020 in “Nature” Stress can cause hair to turn gray by depleting stem cells.
7 citations
,
January 2020 in “PubMed” In this review, researchers highlight preclinical and clinical studies on stem cell-based therapies for hair loss, noting promising early findings but indicating that further robust clinical research is necessary to better understand their effectiveness, safety, and mechanisms.
51 citations
,
October 2019 in “Cells” This study reported that inhibiting the JAK-STAT pathway with baricitinib restored cellular homeostasis, delayed senescence, and reduced proinflammatory markers in Hutchinson-Gilford progeria syndrome cell models.
19 citations
,
September 2019 in “PLOS genetics” This study found that telomere shortening disrupts BMP/pSmad/P63 signaling, leading to skin atrophy via Follistatin up-regulation, and suggests potential therapeutic targets.
44 citations
,
September 2019 in “The EMBO Journal” This study found that lymphatic vessels in mice are important for hair follicle development and organization, as their depletion blocks hair growth.
32 citations
,
August 2019 in “Nature Communications” In this study, researchers found that alkylating chemotherapy causes hair follicle stem cells to lose their regenerative ability by initially triggering proliferation followed by apoptosis, leading to permanent regeneration loss.
26 citations
,
August 2019 in “Stem Cell Research & Therapy” This study found that PBX1 enhances the proliferation and reprogramming of hair follicle mesenchymal stem cells by activating the AKT/GSK3β signaling pathway, promoting NANOG expression, and inhibiting apoptosis.
2 citations
,
August 2019 in “PubMed” This abstract reports that topical minoxidil is currently the only FDA-approved treatment for pattern hair loss in both men and women.
25 citations
,
July 2019 in “Experimental Dermatology” This review discusses the role of cholesterol homeostasis in hair follicle biology and its potential connections to various hair disorders, but it reports no new findings.
73 citations
,
April 2019 in “Experimental Dermatology” This review explores the hair follicle microbiome's interaction with the immune system, discussing its potential clinical implications for scalp health and disease but reports no new clinical results.
101 citations
,
March 2019 in “Cell Stem Cell” This study found that Oncostatin M, via JAK-STAT5 signaling, keeps hair follicle stem cells inactive, and its removal leads to hair growth initiation in mice.
14 citations
,
March 2019 in “Journal of Cosmetic Dermatology” This laboratory study found that activated platelet‐rich plasma supernatant enhanced hair growth signaling pathways in cultured human dermal papilla cells, suggesting potential for treating androgenic alopecia.
45 citations
,
September 2018 in “International Journal of Women's Dermatology” This review discusses the use of platelet-rich plasma as a treatment for androgenetic alopecia and highlights the need for standardized protocols, reporting no new clinical results.
30 citations
,
July 2018 in “Scientific Reports” In this study, a high-fat, high-cholesterol diet in atherosclerotic mice led to skin inflammation and hair problems, which could be reversed by inhibiting glycosphingolipid synthesis.
23 citations
,
April 2018 in “PubMed” This review finds preliminary evidence suggesting that topical finasteride may significantly reduce hair loss and increase hair counts in treating androgenetic alopecia, with a promising safety profile.
18 citations
,
February 2018 in “International Journal of Molecular Sciences” This study found that prostaglandin D2 promotes androgen receptor and AKT signaling in human dermal papilla cells through the DP2 receptor, potentially contributing to androgenetic alopecia.
26 citations
,
January 2018 in “Annals of dermatology/Annals of Dermatology” This review examines current understanding of hair graying and suggests it may be caused by depletion of melanocyte stem cells due to genotoxic stress or dysfunctional melanocytes from oxidative stress.
100 citations
,
September 2017 in “Molecular and Cellular Endocrinology” This review discusses the molecular mechanisms of androgens and androgen receptors in skin disorders, particularly androgenetic alopecia, and reports no new clinical results; it highlights potential areas for future treatment development.
31 citations
,
July 2017 in “Stem cell investigation” This article discusses the use of platelet-rich plasma as a supportive treatment for hair loss, emphasizing its potential to enhance hair follicle health and patient satisfaction, but reports no new clinical results.
38 citations
,
June 2017 in “The Journal of Dermatology” This review synthesizes recent findings on the hair follicle stem cell niche and its complex interactions, exploring potential pathways for developing new hair growth therapies; it reports no new clinical results.
29 citations
,
December 2016 in “The EMBO Journal” This study found that the transcription factor Gata6 plays a crucial role in adult mouse hair follicle regeneration by promoting the renewal and preventing DNA damage of rapidly proliferating progenitor cells.
242 citations
,
February 2016 in “Science” This research found that Foxc1 transcription factor and COL17A1 are critical in regulating quiescence and hair thinning in hair follicle stem cells, with aging-related DNA damage leading to hair loss.
159 citations
,
October 2015 in “Science Advances” This study observed that applying JAK-STAT pathway inhibitors to mouse and human skin led to rapid hair growth by inducing the anagen phase of hair follicles.
184 citations
,
February 2015 in “EBioMedicine” This study observed that baricitinib treatment led to significant improvement in a patient's alopecia areata symptoms and suggests further clinical trials to explore its potential as a treatment.
175 citations
,
December 2014 in “PLoS Biology” This study found that macrophages near hair follicles contribute to the activation of skin epithelial stem cells in mice, suggesting a novel role for macrophages in regulating hair growth.
46 citations
,
December 2014 in “Journal of The American Academy of Dermatology” This study found that smoking, obesity, and family history are significant risk factors for premature hair graying in young men.
98 citations
,
July 2014 in “Trends in Molecular Medicine” This article discusses the role of human hair follicles in neuroendocrinology and suggests potential new therapeutic targets by examining how neuromediators influence hair growth, pigmentation, and stem cell biology in organ cultures.
27 citations
,
November 2013 in “Dermatologic Therapy” This study suggests that a hair follicle enzyme assay may predict response to minoxidil treatment for androgenetic alopecia with high sensitivity and specificity in a preliminary analysis.
17 citations
,
October 2013 in “Plastic and reconstructive surgery. Global open” This review examines misconceptions and gaps in the understanding of androgenic alopecia (AGA) etiopathogenesis, offering new perspectives but no new experimental results.
67 citations
,
August 2013 in “International Journal of Cosmetic Science” This review discusses the role of oxidative stress in hair greying and suggests that understanding melanocyte susceptibility at different follicular locations may help develop therapies for preventing and reversing the process; it reports no new experimental results.
76 citations
,
April 2013 in “PLoS ONE” The researchers reported that reactive oxygen species regulate the stress-induced SP-Mast cell pathway, which might support using antioxidants to treat stress-related hair loss.
176 citations
,
January 2013 in “Proceedings of the National Academy of Sciences” This study reveals an antagonistic competition between BMP and Wnt signaling within stem cells, influencing their fate towards hair germ characteristics based on the BMP/Wnt activity ratio.
42 citations
,
July 2012 in “PLOS ONE” This study found that estrogen can cause reversible suppression of the hair cycle by inducing premature catagen and maintaining the telogen phase without damaging the hair follicle stem cell niche or the signature gene expressions of dermal papilla cells.
205 citations
,
March 2012 in “Science Translational Medicine” PGD2 stops hair growth and is higher in bald men with AGA.
39 citations
,
January 2012 in “Indian Dermatology Online Journal” This article examines the evidence regarding finasteride's sexual side effects and offers recommendations for patient counseling but reports no new clinical findings.
35 citations
,
May 2011 in “Experimental Dermatology” This study found that hair follicles undergo significant molecular changes with age, notably a decline in keratins and keratin-associated proteins, which may contribute to age-related hair alterations.
55 citations
,
March 2010 in “Aging” This study found that circadian clock genes are involved in regulating the hair growth cycle, suggesting a connection between daily rhythms and the longer hair follicle cycling process.
126 citations
,
January 2009 in “International Journal of Trichology” This review discusses the potential role of oxidative stress in hair graying and age-related alopecia, emphasizing the need for new strategies to counteract these effects, but reports no new results.
210 citations
,
May 2006 in “The FASEB journal” This study found that oxidative stress in hair follicle melanocytes contributes to premature aging and apoptosis, providing insights into graying as a model for studying aging and testing antiaging therapies.
80 citations
,
April 2006 in “Clinical Interventions in Aging” This review discusses factors affecting hair aging and the current pharmacological treatments for androgenetic alopecia, mentioning topical minoxidil and oral finasteride, but does not present new clinical findings.
375 citations
,
February 2006 in “Journal of Cell Science” This article reviews the stages and regulation of the hair cycle, highlighting molecular regulators involved, but it does not present new research findings.
103 citations
,
January 2006 in “Journal of Cell Science” This review summarizes the major events and regulators of the hair cycle in mammals but reports no new experimental results; it emphasizes the complex regulation of stem cell activation and differentiation during hair growth.
99 citations
,
June 2005 in “Journal of Cosmetic Dermatology” This article reviews factors influencing hair aging and available treatments like minoxidil and finasteride for androgenetic alopecia but reports no new clinical results.
152 citations
,
December 2003 in “Micron” This review discusses the development, regulation, and aging of the human hair follicle pigmentary system and suggests potential for reversing hair graying by manipulating follicle melanocytes in vitro, but reports no clinical results.
123 citations
,
February 2002 in “Journal of The American Academy of Dermatology” Minoxidil can cause skin allergy; use alternative solvents or treatments if allergic.
236 citations
,
July 2001 in “Trends in Molecular Medicine” This review discusses common hair loss conditions and explores how advancements in hair follicle biology might lead to more effective treatments but reports no new results.
79 citations
,
January 2000 in “Annals of Clinical Psychiatry” This review discusses the potential for mood stabilizers, antidepressants, and some antipsychotic and antianxiety drugs to induce alopecia and reports no clinical results.
49 citations
,
January 1998 in “International Journal of Molecular Medicine” In this study, lipid peroxides were found to induce apoptosis in hair follicle cells and advance the catagen phase in mice, suggesting a potential mechanism for alopecia development.
187 citations
,
January 1994 in “The New England Journal of Medicine” Finasteride treats enlarged prostate and may help with baldness, but effects on sexual function and male fetuses are unclear.
96 citations
,
October 1981 in “Drugs” Minoxidil effectively treats severe hypertension but may cause side effects, so careful monitoring is needed.
