65 citations
,
July 2020 in “Science Advances” Dermal exosomes with miR-218-5p boost hair growth by controlling β-catenin signaling.
8 citations
,
April 2020 in “Journal of Ethnopharmacology” This review assessed experimental studies on herbs used for alopecia, identifying potential mechanisms involving hair cycle management and keratinocyte processes, but highlighted a need for improved evidence on quality control and toxicity of these herbal treatments.
16 citations
,
October 2019 in “Biological & Pharmaceutical Bulletin” This study suggests that Houttuynia cordata extract may promote hair growth by stimulating dermal papilla cell proliferation and extending the anagen phase through enhanced energy metabolism and gene expression changes.
19 citations
,
August 2019 in “Expert Opinion on Therapeutic Targets” This review discusses emerging targets for developing drugs to treat hair loss and reports no new clinical results; the authors emphasize the potential for therapies that regenerate hair follicles.
5 citations
,
December 2018 in “Biological & Pharmaceutical Bulletin” In this study, norgalanthamine was found to stimulate hair growth in cultured rat dermal papilla cells by activating the ERK 1/2, PI3K/AKT, and Wnt/β-catenin signaling pathways.
140 citations
,
November 2018 in “Pharmacology & Therapeutics” This review explores the potential of small molecules to activate the Wnt/β-catenin signaling pathway in treating diseases and reports no new experimental findings.
25 citations
,
September 2018 in “Scientific Reports” This study found that morroniside enhanced hair follicle growth and transition through the Wnt/β-catenin signaling pathway in a mouse model, suggesting its potential as a treatment for hair loss.
290 citations
,
December 2017 in “Journal of The American Academy of Dermatology” This article reviews the epidemiology, clinical evaluation, and pathogenesis of alopecia areata and highlights recent advancements, but it does not report new clinical findings.
13 citations
,
October 2017 in “Bioscience, Biotechnology, and Biochemistry” This study found that a titrated extract of Centella asiatica enhanced the hair growth potential of 3D spheroid cultured human dermal papilla cells.
33 citations
,
September 2017 in “Molecules” This study found that red ginseng oil and its major components improved hair regrowth in testosterone-treated mice by promoting an earlier anagen phase and altering related gene expressions.
15 citations
,
August 2017 in “International Journal of Molecular Medicine” This study reported that Panax ginseng extract significantly inhibited DKK-1-induced catagen-like changes in human hair follicles by promoting cell proliferation and reducing apoptosis, suggesting it may help mitigate hair loss associated with DKK-1.
99 citations
,
July 2017 in “Clinical Reviews in Allergy & Immunology” This review noted that alopecia areata is an autoimmune disease impacting hair follicles and offered insights into its complex pathogenesis involving immune responses, while highlighting ongoing research into new treatments such as Janus kinase inhibitors and other immunomodulatory drugs.
14 citations
,
July 2017 in “Fitoterapia” In this study, oleanolic acid was found to enhance hair follicle growth and promote hair matrix cell proliferation via the Wnt/β-catenin pathway in a human hair follicle organ culture model.
22 citations
,
February 2017 in “Clinical and Experimental Dermatology” This study suggests that icariin promotes hair follicle growth in mice by enhancing IGF-1 expression in dermal papilla cells.
11 citations
,
October 2015 in “Clinical and Experimental Dermatology” This study found that an extract from the root of Sophora flavescens Aiton significantly improved hair growth in patients with androgenetic alopecia over 6 months.
10 citations
,
July 2015 in “Journal of Cosmetic Dermatology” This study found elevated tissue levels of DKK-1 in patients with both androgenetic alopecia and alopecia areata compared to controls, suggesting DKK-1 as a potential therapeutic target for these conditions.
26 citations
,
March 2015 in “Phytotherapy Research” This study found that forsythiaside-A, a natural compound from Forsythia suspensa, was more effective than finasteride at preventing apoptosis of hair cells and delaying the catagen phase entry in an androgenic alopecia mouse model.
24 citations
,
December 2014 in “International Journal of Molecular Medicine” In this study, researchers found that petroleum ether extract of Eclipta alba significantly stimulated follicular keratinocyte proliferation and reduced TGF-β1 expression in nude mice, suggesting potential use for certain types of alopecia.
42 citations
,
March 2014 in “European Journal of Pharmacology” This study found that minor ginseng saponin F2 may promote hair growth more effectively than finasteride by enhancing anagen induction and modulating the Wnt signaling pathway in cell and mouse models.
27 citations
,
February 2014 in “Planta Medica” This study found that Scutellaria baicalensis extract and its main component baicalin inhibited androgen activation signaling and promoted proliferation of human dermal papilla cells, suggesting potential use in treating androgen-associated disorders.
22 citations
,
January 2014 in “Biological & Pharmaceutical Bulletin” This study found that ginsenoside F2 may suppress hair cell apoptosis and improve hair growth outcomes in a DHT-induced hair loss model more effectively than finasteride.
35 citations
,
January 2014 in “Postepy Dermatologii I Alergologii” This study found that increased dihydrotestosterone levels were observed in both androgenetic alopecia patients and controls, suggesting that follicle sensitivity to DHT may be more critical than DHT levels for alopecia development.
26 citations
,
May 2013 in “Marine Drugs” This study found that Ishige sinicola extract increased hair growth and cell proliferation in cultured vibrissa follicles and mice, suggesting potential benefits for treating alopecia through β-catenin activation and 5α-reductase inhibition.
40 citations
,
February 2013 in “American Journal of Clinical Dermatology” This study found that people with androgenic alopecia, particularly women, are more prone to anxiety and depression, often adopting avoidant coping strategies, which are linked to emotional and psychological impacts rather than clinical severity.
22 citations
,
January 2013 in “International Journal of Trichology” Hair loss is often linked to thyroid problems, especially in women and older people, and screening for thyroid issues is advised for those with hair loss.
25 citations
,
November 2012 in “Phytotherapy Research” In this study, oral administration of Crataegus pinnatifida extract was associated with hair growth promotion in mice by inducing anagen phase and enhancing cell signaling related to hair follicle development.
15 citations
,
September 2012 in “PTR. Phytotherapy research/Phytotherapy research” In this study, topical application of ginsenosides Rb₁ and Rd in mice increased cell proliferation in hair follicles, suggesting they may help prevent hair loss by promoting growth through p63 induction.
17 citations
,
August 2012 in “Archives of Pharmacal Research” Acankoreoside J from Acanthopanax koreanum may help promote hair growth.
49 citations
,
April 2012 in “Phytotherapy Research” This study found that topical Rosmarinus officinalis leaf extract improved hair regrowth in mice and inhibited androgen-associated mechanisms involved in hair loss.
205 citations
,
March 2012 in “Science Translational Medicine” PGD2 stops hair growth and is higher in bald men with AGA.
66 citations
,
November 2011 in “Journal of The American Academy of Dermatology” This study concluded that a polarized-light handheld dermatoscope attached to a digital camera is a practical and useful tool for diagnosing different types of alopecia.
41 citations
,
October 2011 in “Journal of Dermatology” This study observed that long-term use of finasteride in Japanese men with androgenetic alopecia was associated with progressive hair regrowth in 87.1% of participants without significant safety concerns.
15 citations
,
June 2011 in “Journal of Investigative Dermatology” This study found that overexpressing the 14-3-3σ protein in transgenic mice reduced keratinocyte proliferation and migration, leading to thinner epidermis and fewer hair follicles due to IGF-1 pathway inhibition.
91 citations
,
April 2011 in “Journal of Ethnopharmacology” This study found that Polygonum multiflorum extract may promote hair growth by inducing the anagen phase in the resting hair follicles of mice.
122 citations
,
November 2010 in “Journal of Dermatological Science” This study found that increased expression of type II 5α-reductase, androgen receptors, and Hic-5/ARA55 in dermal papilla cells upregulates androgen sensitivity, playing a key role in androgenetic alopecia pathogenesis.
31 citations
,
October 2010 in “BMB Reports” In this study, L-threonate was found to inhibit DHT-induced DKK-1 expression in cultured dermal papilla cells, suggesting it could help prevent androgen-driven balding.
126 citations
,
January 2010 in “British Journal of Dermatology” This study found that the prevalence of androgenetic alopecia in Chinese men and women was lower than in Caucasians and similar to that in Koreans.
39 citations
,
March 2009 in “Archives of Dermatological Research” This study suggests that apigenin may stimulate hair growth by downregulating TGF-ß1 gene expression in human epidermal keratinocytes and promoting hair follicle elongation in a rat hair follicle culture.
20 citations
,
October 2008 in “Archives of dermatological research” This study found that angiogenin is expressed in human dermal papilla cells, where it might stimulate hair growth by promoting cell proliferation and local skin angiogenesis.
171 citations
,
July 2007 in “Journal of Investigative Dermatology” The researchers reported that DHT-inducible DKK-1 may play a significant role in DHT-driven balding by inhibiting hair follicle cell growth and promoting apoptosis in androgenetic alopecia.
16 citations
,
September 2006 in “Journal of Cutaneous Pathology” This study found that the p63 transcription factor is expressed during rat epidermal development and may serve as a specific marker for keratinocyte progenitor cells.
25 citations
,
July 2004 in “Experimental Dermatology” This study found that water-soluble extracts of Illicium anisatum promoted hair follicle elongation in cultured mouse vibrissae, suggesting potential use in hair growth products.
57 citations
,
June 2003 in “American Journal of Physiology-cell Physiology” This study found that cyclosporin A treatment enhances hair growth in mice by inhibiting calcineurin-NFAT1 activity, which alters keratinocyte differentiation and apoptosis-related gene expression in hair follicles.
60 citations
,
April 2003 in “Biomaterials” This study found that the controlled release of specific growth factors from biodegradable hydrogels significantly enhanced hair follicle growth and hair shaft length in mice compared to growth factors in solution.
190 citations
,
October 2002 in “The FASEB journal” In this study, androgen did not affect keratinocyte growth in coculture with androgenetic alopecia-derived dermal papilla cells, but did significantly suppress keratinocyte growth when androgen receptor was overexpressed in the papilla cells.
39 citations
,
December 2001 in “JNCI: Journal of the National Cancer Institute” This study found that enhanced expression of the Sonic hedgehog gene via an adenovirus vector accelerated hair regrowth in mice with chemotherapy-induced alopecia.
520 citations
,
February 2001 in “Journal of Clinical Investigation” This study found that VEGF significantly enhances perifollicular vascularization during the hair growth phase, accelerating hair regrowth and increasing follicle and hair size, while its inhibition retards hair growth.
72 citations
,
January 2001 in “Drugs” This review discusses current and emerging drug therapies for treating androgenetic alopecia and alopecia areata, and reports no clinical results; it highlights a need for improved and novel treatments.
194 citations
,
May 2000 in “Journal of Investigative Dermatology” This study demonstrated that blocking the Sonic hedgehog signaling pathway in mice led to reversible inhibition of body coat hair morphogenesis, while whisker development was unaffected.
100 citations
,
September 1999 in “British Journal of Dermatology” This study suggests that finasteride's effect on promoting hair growth in men with androgenetic alopecia may be due to its inhibition of 5aR2 localized in hair follicles.
169 citations
,
June 1998 in “Journal of Investigative Dermatology” This study found no significant genetic association between the 5α-reductase enzyme genes and male pattern baldness, suggesting a polygenic etiology rather than simple inheritance.
109 citations
,
April 1998 in “Journal of Investigative Dermatology” This study found that recombinant human HGF/SF injections altered hair follicle growth cycles and mildly promoted hair elongation in mice, depending on their hair cycle stage.
416 citations
,
September 1997 in “Journal of Investigative Dermatology” People with hair loss have more androgen receptors and enzymes in certain follicles, with men and women showing different patterns.
135 citations
,
January 1996 in “Journal of Investigative Dermatology”
101 citations
,
April 1994 in “Baillière's clinical endocrinology and metabolism” This review discusses the role of 5α-reductase enzymes in androgen action and related disorders, noting that their specific inhibitory drugs show promise for conditions like benign prostatic hypertrophy; it reports no new clinical results.