32 citations
,
February 2024 in “Growth Hormone & IGF Research” In this study, DHT was found to inhibit hair growth in mice by decreasing IGF-I production in dermal papillae through reduced sensory neuron stimulation.
8 citations
,
February 2016 in “The American Journal of Dermatopathology” In this study, the researchers found that transplanted hair follicles undergo significant morphological changes, including a thickened dermal sheath and increased hair shaft diameter, which are associated with altered follicular vascularization.
162 citations
,
October 2014 in “Autoimmunity reviews” This review discusses alopecia areata, highlighting its autoimmune aspects, environmental triggers, and current treatment options, but reports no new clinical results; recent studies suggest JAK pathway intervention may offer therapeutic potential.
30 citations
,
September 2014 in “Journal of Investigative Dermatology” This study found that certain chemotherapeutic agents, such as cyclophosphamide, disrupt feather formation and induce hair loss in mice by inhibiting cell proliferation through sonic hedgehog gene downregulation.
701 citations
,
August 2014 in “Nature medicine” This study found that JAK inhibitors promote hair regrowth in both mice and human alopecia areata cases by blocking key immune pathways involved in disease development.
426 citations
,
August 2014 in “Nature Medicine” This narrative review examines the interactions between skin stem cells and their niches, finding new insights from advancements in genetic and imaging tools but reporting no new experimental results.
61 citations
,
June 2014 in “Scientific Reports” This study found that overexpression of Wnt1a in bone marrow mesenchymal stem cells enhanced mouse hair follicle regeneration and promoted hair cycling.
53 citations
,
March 2014 in “Growth Hormone & IGF Research” This study found that IGF-1 injections increased hair follicle number and growth phase duration in wild-type mice, suggesting potential for baldness treatment.
27 citations
,
February 2014 in “Experimental Dermatology” This study found that dermal papilla cells from balding scalp follicles secrete significantly less insulin-like growth factor-1 and its binding proteins, suggesting a mechanism contributing to male pattern baldness.
13 citations
,
January 2014 in “Postępy Dermatologii i Alergologii” This report describes four cases of patchy, non-scarring alopecia areata that spared gray hairs and affected only pigmented hairs.
23 citations
,
December 2013 in “Regenerative Medicine” This review discusses advancements in cell culture techniques for hair growth treatments and provides insights into the potential and challenges of follicular cell implantation, reporting no new clinical results.
25 citations
,
December 2013 in “Journal of Investigative Dermatology Symposium Proceedings” In this study, researchers developed a new humanized mouse model for alopecia areata that highlights the role of specific immune cells and may aid in discovering new treatments for the disease.
57 citations
,
October 2013 in “international journal of endocrinology and metabolism” This review discusses clinical features, differential diagnosis, and treatments for female pattern hair loss, emphasizing the use of 2% topical Minoxidil and exploring alternative off-label therapies.
277 citations
,
February 2013 in “Science Signaling” This study found that mitochondrial reactive oxygen species are crucial for normal epidermal differentiation and hair follicle growth, as demonstrated by impaired development in mice lacking these signals due to a keratinocyte-specific TFAM deficiency.
218 citations
,
January 2013 in “The Lancet Oncology” This review discusses the pathobiology of chemotherapy-induced alopecia and highlights challenges in managing it, reporting no new clinical results and emphasizing the need for well-designed preclinical models to develop effective treatments.
88 citations
,
January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” This article reviews recent advancements in understanding and treating androgenetic alopecia, focusing on new genetic insights, stem cell roles, and diagnostic tools, without reporting new clinical results.
54 citations
,
September 2012 in “The journal of investigative dermatology/Journal of investigative dermatology” This study suggests that vitamin A influences the immune response and hair cycle, affecting the progression of alopecia areata in mouse models.
115 citations
,
September 2012 in “Experimental Dermatology” This article reviews the molecular mechanisms involved in androgenetic alopecia and the androgen's paradoxical role in hair growth, but reports no new experimental findings.
300 citations
,
August 2012 in “Seminars in Cell & Developmental Biology” This review discusses mesenchymal–epithelial interactions in hair follicle development and cycling, highlighting recent insights without reporting new experimental results.
205 citations
,
March 2012 in “Science Translational Medicine” PGD2 stops hair growth and is higher in bald men with AGA.
95 citations
,
January 2012 in “British Journal of Dermatology” This study found that androgens inhibit hair follicle stem cell differentiation by disrupting the Wnt signalling pathway in dermal papilla cells, but Wnt activation can restore differentiation.
66 citations
,
July 2010 in “Journal of Proteome Research” This study suggests that an immune response to trichohyalin and keratin 16 may contribute to the pathogenesis of alopecia areata.
717 citations
,
June 2010 in “Nature” This study identified key genetic regions associated with alopecia areata, highlighting both acquired and innate immune involvement, with a novel link to the upregulation of ULBP ligands in autoimmune disease.
81 citations
,
June 2010 in “Journal of Dermatological Treatment” This review discusses recent advancements in hair rejuvenation strategies and assesses the potential of herbal drugs as safer alternatives, but reports no new clinical results.
42 citations
,
March 2010 in “Endocrinology” This study reports the development of the first rodent model for androgenetic alopecia, demonstrating that overexpression of androgen receptors in mice delays hair regeneration and can be used to test new treatments.
21 citations
,
October 2009 in “Molecular Biology Reports” 
759 citations
,
February 2009 in “Current Biology” This review summarizes fundamental concepts and recent advancements in hair follicle biology, including insights from mouse models into broader molecular and cellular processes relevant to regeneration and development.
59 citations
,
September 2008 in “Experimental dermatology” This study reports that C3H/HeJ mice and DEBR rats serve as effective models for screening potential treatments for human alopecia areata, despite certain challenges in predictability and cost.
27 citations
,
March 2008 in “Cell stress & chaperones” This study found that localized administration of heat or certain stress protein inducers effectively prevented chemotherapy-induced hair loss in rodent models without affecting chemotherapy efficacy.
253 citations
,
December 2007 in “Journal of Investigative Dermatology” This study suggests that human hair follicles may actively suppress natural killer cells, which contrasts with the observed defects in NK cell regulation in alopecia areata.
143 citations
,
January 2007 in “The American Journal of Human Genetics” This study identified four genetic loci on chromosomes 6, 10, 16, and 18 that may contribute to susceptibility for alopecia areata and suggested shared genetic factors with psoriasis.
97 citations
,
September 2006 in “Pharmaceutical Research” This review discusses advances in protecting against chemotherapy-induced alopecia and reports no new clinical results; calcitriol and cyclosporine A emerged as promising agents in animal models with broader efficacy across multiple chemotherapy drugs.
42 citations
,
March 2006 in “Drug Discovery Today: Therapeutic Strategies” This article discusses the need for rational strategies in developing hair loss drugs targeting specific events in hair follicle cycling, reporting no clinical findings but emphasizing the importance of understanding molecular controls.
21 citations
,
December 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” This study demonstrates that T-cell responses in extensive alopecia areata scalp may be aberrantly regulated, with reduced cytokine production but activated phenotype, providing insight into the disease's immune mechanisms.
23 citations
,
December 2004 in “Differentiation” This article reviews the interaction between sex hormone pathways and morphogenesis-related signaling in epithelial organ development, using a chicken model to propose testable hypotheses, but reports no new clinical results.
17 citations
,
May 2003 in “Journal of The American Academy of Dermatology” This study found that miniaturized hair follicles from pattern alopecia can regenerate rapidly when transplanted onto mice and may grow as well as or better than terminal hairs.
47 citations
,
April 2003 in “Journal of dermatological science” This study showed that Thujae occidentalis semen extract inhibited 5alpha-reductase type 2 in laboratory tests and reduced androgen-related hair loss in animal models, suggesting potential use for male pattern baldness.
165 citations
,
December 2002 in “Molecular and Cellular Endocrinology” This study found that finasteride improves scalp hair growth in men with male pattern hair loss by reducing scalp dihydrotestosterone levels, but it did not benefit postmenopausal women with female pattern hair loss.
13 citations
,
October 2002 in “Journal of Biochemical and Biophysical Methods” This study found that men with androgenic alopecia had significantly higher levels of certain urinary steroid metabolites, suggesting increased 5 alpha-reductase activity and possible mild hyperadrenal activity.
69 citations
,
July 2002 in “Clinical and Experimental Dermatology” This review discusses rodent models of alopecia areata and highlights genetic and epigenetic factors influencing its development, but reports no new experimental results.
34 citations
,
December 2000 in “The journal of investigative dermatology/Journal of investigative dermatology” This study observed that rat vibrissa hair follicles cultured in vitro showed morphological changes suggesting cyclical activity but remained blocked in the pro-anagen stage.
73 citations
,
November 2000 in “Proceedings of the National Academy of Sciences of the United States of America” This study demonstrated that anagen can be induced in Stat3-disrupted mice, suggesting that both Stat3-dependent and independent pathways, possibly involving PKC, mediate hair cycle progression with required PI3K activation.
26 citations
,
June 2000 in “Journal of The American Academy of Dermatology” This study found that older men with vertex balding had lower levels of IGFBP-3 and higher levels of IGF-1 in their plasma.
27 citations
,
October 1999 in “Experimental and Molecular Pathology” This article reviews potential animal models for studying androgenetic alopecia and reports no new experimental results; the authors highlight the need for further development of rodent models.
158 citations
,
November 1998 in “Cell” β-catenin affects hair growth and can lead to tumors, needing more research for better understanding.
23 citations
,
May 1998 in “Journal of Dermatological Science” This study suggests that skin sections from 4-week-old C3H mice could serve as an in vitro model for human androgenic alopecia, as minoxidil partially reverses suppressed hair follicle elongation.
71 citations
,
January 1998 in “Pathobiology” This review discusses the use of animal models to study alopecia areata and reports no new experimental results, emphasizing the potential for these models to explore the disease's genetics and treatment.
9 citations
,
November 1997 in “British Journal of Dermatology” 114 citations
,
October 1996 in “Dermatologic clinics” This chapter reviews laboratory models used for studying alopecia therapies but provides no new experimental findings.
90 citations
,
October 1996 in “Dermatologic Clinics” This study found that red ginseng oil may enhance hair growth and protect skin from UV damage in mouse models by promoting regenerative processes and reducing inflammation.
16 citations
,
August 1996 in “The journal of experimental zoology/Journal of experimental zoology” This study suggests that red deer stags provide a novel model for investigating hormonal regulation of hair growth due to the different cell growth rates in hair follicles during breeding and nonbreeding seasons.
13 citations
,
April 1994 in “Journal of Investigative Dermatology” Androgen receptors found in monkey scalps, similar to humans, affect hair growth.
385 citations
,
November 1990 in “Journal of Cell Science” This study successfully grew and maintained human hair follicles in vitro, noting that TGF-β1 negatively affects growth, while EGF replicates hair-removal effects seen in animals.
38 citations
,
July 1989 in “Archives of dermatological research” Testosterone causes hair loss in AGA mice, which are good for testing baldness treatments, and both minoxidil and cyproterone acetate can prevent this hair loss.
12 citations
,
December 1987 in “Cancer Chemotherapy and Pharmacology” Vitamin E in the diet might help protect against hair loss caused by the chemotherapy drug doxorubicin in rabbits.
