5 citations
,
March 2012 in “Journal of Investigative Dermatology” In their mouse study, Oda et al. found that removing the MED1 gene in the skin led to hair loss and changes in epidermal cell differentiation, indicating MED1's significant role in these processes.
59 citations
,
February 2012 in “Journal of Dermatological Science” This review discusses the multiple layers of environmental controls on hair stem cell homeostasis and suggests that targeting these layers could offer safer regenerative medicine therapies without directly using stem cells.
28 citations
,
January 2012 in “Biological & pharmaceutical bulletin” This study found that the protein hairless acts as both a corepressor and coactivator of the vitamin D receptor, influencing gene transcription in a ligand-selective manner.
40 citations
,
December 2011 in “British Journal of Dermatology” This article reviews how chronological aging affects female scalp hair growth and suggests that multiple factors, including environmental influences, contribute to female pattern hair loss; no new clinical results are presented.
38 citations
,
December 2011 in “British Journal of Dermatology” This review discusses the influence of menopausal status on hair parameters in women without alopecia, finding significant differences in hair growth rate, percentage anagen, and hair diameter distributions, particularly in the frontal scalp.
3 citations
,
November 2011 in “European Journal of Dermatology” This article discusses alopecia and the impact of hair loss on mental health, but it presents no new research findings and highlights the need for further studies.
50 citations
,
September 2011 in “Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids” This review examines the role of retinoic acid synthesis in hair follicles and sebaceous glands, focusing on its localization and function during normal and disease states, but reports no new results.
499 citations
,
September 2011 in “Cell” This study found that intradermal adipocyte lineage cells in mice are necessary and sufficient to activate follicular stem cells, highlighting their role in regulating skin stem cell activity.
11 citations
,
May 2011 in “World Journal of Pediatrics” The document emphasizes the importance of correctly identifying and classifying genetic hair disorders to help diagnose related health conditions.
176 citations
,
April 2011 in “Science” This study found that in a population of hair follicles, regenerative cycling stages are regulated by both intrinsic and extrinsic signals, with WNT/BMP signaling mediating interactions among follicles for adaptability.
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.
29 citations
,
March 2011 in “The Journal of Nutritional Biochemistry” Eating isoflavone can help mice grow hair by increasing a growth factor.
283 citations
,
February 2011 in “Cell stem cell” COL17A1 is crucial for preventing hair graying and loss by supporting hair and pigment stem cells.
235 citations
,
January 2011 in “Journal of Clinical Investigation” This study found that androgenetic alopecia may involve a defect in the conversion of hair follicle stem cells to progenitor cells, as demonstrated by a reduced presence of progenitor cells in bald scalp samples.
56 citations
,
December 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” This study suggests that the susceptibility of hair follicle melanocytes to oxidative stress as they age may be key in the graying of hair due to reduced catalase expression and activity.
150 citations
,
October 2010 in “The American Journal of Pathology” This review discusses the pathogenesis and challenges in treating primary cicatricial alopecia, highlighting the need to understand immune protection collapse in hair follicle stem cells; it reports no new clinical results.
151 citations
,
August 2010 in “British Journal of Dermatology” This guideline reviews the diagnosis of androgenetic alopecia and offers expert consensus recommendations tailored to males, females, and adolescents, but reports no new clinical results.
101 citations
,
August 2010 in “PLoS ONE” In this mouse study, severe selenoprotein deficiency in epidermal cells was linked to skin abnormalities, disrupted hair follicle development, and progressive alopecia, highlighting the role of selenoproteins in skin and hair health.
30 citations
,
July 2010 in “Experimental Dermatology” This article reviews the role of polyamines in hair follicle growth and discusses potential therapeutic applications but provides no new clinical results.
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.
69 citations
,
April 2010 in “British Journal of Dermatology” This study found a significant association between androgenetic alopecia and metabolic syndrome, highlighting high-density lipoprotein cholesterol as a particularly important factor.
22 citations
,
April 2010 in “Journal of Cellular Biochemistry” This study concluded that the hairless protein interacts with the vitamin D receptor to repress transcription crucial for hair cycling, employing multiple protein interfaces and modulating chromatin structure.
98 citations
,
February 2010 in “Dermatology Online Journal” This article outlines the potential for upregulating the vitamin D receptor in treating hair disorders, emphasizing the need for further studies to evaluate vitamin D's role in the hair cycle.
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.
12 citations
,
December 2009 in “Amino Acids” In this study, topical application of α-methylspermidine during the telogen phase in mice induced hair growth by increasing the polyamine pool and mimicking the anagen phase's characteristics.
62 citations
,
November 2009 in “Aging Cell” Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.
39 citations
,
November 2009 in “Clinical and Experimental Dermatology” This study reports that in primary cicatricial alopecias, increased expression of certain immune markers in the hair-follicle bulge suggests a collapse of immune privilege, which may contribute to follicle destruction.
40 citations
,
June 2009 in “Journal of Cutaneous Pathology” This study found that Iranian patients with androgenetic alopecia had a higher terminal to vellus hair ratio compared to previous studies in Whites, suggesting potential onset of miniaturization.
34 citations
,
March 2009 in “British journal of dermatology/British journal of dermatology, Supplement” In this study, l-Ascorbic acid 2-phosphate was found to stimulate hair follicle growth in vitro by promoting IGF-1 expression via the PI3K pathway.
97 citations
,
March 2009 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” This study suggests that there is a U-shaped relationship between vitamin D hormonal forms and aging, with an optimal serum calcidiol concentration needed to minimize aging-related chronic disease risk.
217 citations
,
February 2009 in “The FASEB Journal” This study found that hydrogen peroxide accumulation and reduced methionine sulfoxide repair play a significant role in the oxidative damage linked to senile hair graying.
53 citations
,
January 2009 in “Journal of Investigative Dermatology” In this study, UVB irradiation of organ-cultured human anagen hair follicles in vitro reduced hair elongation and increased cell death, affecting hair growth and regulatory processes.
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.
50 citations
,
December 2008 in “Clinical Endocrinology” This study found that young males with stage III or higher androgenetic alopecia had higher insulin resistance and cardiovascular-related features, suggesting the need for metabolic assessment in this population.
1533 citations
,
October 2008 in “Endocrine reviews” This research highlights that engineered mice lacking the vitamin D receptor show multiple health issues similar to human vitamin D deficiency, underscoring the widespread impacts of the vitamin D endocrine system.
66 citations
,
September 2008 in “Dermatologic therapy” This review discusses medical treatments for hirsutism, focusing on oral contraceptives and other therapies, but reports no new results; the authors emphasize the lack of evidence for insulin sensitizers in treating hirsutism alone.
74 citations
,
July 2008 in “Dermatologic therapy” This review discusses histopathologic findings in diagnosing primary cicatricial alopecias and emphasizes the importance of correlating histology with clinical presentation for accurate diagnosis; it reports no new results.
159 citations
,
November 2007 in “American Journal of Pathology” In this study, researchers found that substance P triggered premature catagen development and immune changes in human scalp hair follicles, providing a possible biological link between stress and hair loss conditions like telogen effluvium and alopecia areata.
91 citations
,
November 2007 in “Archives of Dermatology” In this study, smoking status and intensity were significantly associated with moderate or severe androgenetic alopecia among Asian men, after accounting for age and family history.
26 citations
,
October 2007 in “Experimental Dermatology” This study found that l-carnitine stimulated hair growth in vitro by promoting proliferation and reducing apoptosis in human scalp hair follicles, suggesting potential as a treatment for hair loss.
120 citations
,
October 2007 in “Clinical Interventions in Aging” This review discusses the effects of estrogens on skin aging and highlights the potential benefits of estrogen replacement therapy and selective estrogen receptor modulators for improving skin health in postmenopausal women, but reports no new clinical findings.
99 citations
,
September 2007 in “The American journal of pathology” This study found that organ-cultured human scalp hair follicles can mimic chemotherapy-induced damage in vivo and serve as a model to explore molecular targets and protective agents for hair follicle preservation.
286 citations
,
August 2007 in “Journal of Clinical Investigation” This review examines the interplay of genetics and neuroimmunology in alopecia areata, highlighting its potential to inform broader autoimmunity research, but reports no new findings.
72 citations
,
January 2007 in “Dermatology” This study found a correlation between moderate to extensive alopecia and low-grade inflammation, a cardiovascular risk marker, particularly in young men under 35 with central obesity.
67 citations
,
January 2007 in “Climacteric” This article discusses the impact of estrogens on skin aging, highlighting the potential benefits and unresolved effectiveness of alternatives like phytoestrogens and selective estrogen receptor modulators; it reports no new clinical results.
47 citations
,
December 2006 in “Therapy” This study found that a dietary supplement containing L-cystine, medicinal yeast, and pantothenic acid significantly improved hair growth in women with telogen effluvium over six months compared to placebo.
108 citations
,
November 2006 in “Phytomedicine” This study found that EGCG from green tea may stimulate human hair growth by promoting the proliferation and anti-apoptotic activity in dermal papilla cells.
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.
22 citations
,
April 2006 in “Journal of The American Academy of Dermatology” This review discusses the diagnosis and treatment of iron deficiency, its potential link to hair loss, and emphasizes the importance for dermatologists to understand these aspects; it reports no new findings.
22 citations
,
April 2006 in “Journal of Dermatological Science” This study reports that versican expression plays a crucial role in maintaining the anagen phase and hair inductive properties, as shown in a transgenic mouse model and hair growth assays.
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.
33 citations
,
January 2006 in “Journal of Dermatological Science” This article reviews the molecular interactions involved in hair follicle cycling and highlights the role of dermal papilla cells, but it presents no new research findings.
550 citations
,
December 2005 in “The Journal of clinical investigation/The journal of clinical investigation” This study found that bulge cells marked by CD200+ in human hair follicles show high colony-forming efficiency, suggesting successful enrichment of keratinocyte stem cells.
127 citations
,
December 2005 in “Experimental Dermatology” This study provides evidence that psychoemotional stress inhibits hair growth in mice by affecting the brain-hair follicle axis, with specific neuropeptides and treatments modulating this effect.
185 citations
,
August 2005 in “Autoimmunity Reviews” This review discusses alopecia areata as a model for studying tissue-directed autoimmune diseases and reports no new clinical findings.
33 citations
,
April 2005 in “British Journal of Dermatology” This study found that age and follicular miniaturization were extremely weak predictors of total hair count in women with hair loss.
76 citations
,
March 2005 in “Journal of Molecular Medicine” This study found that premature hair loss due to stress does not occur in NK-1 receptor knockout or mast cell deficient mice, suggesting a key role for neurokinin substance P and mast cell interaction in stress-related hair follicle changes.
92 citations
,
February 2005 in “Endocrinology” This study found that estrogen receptor beta plays a significant role in murine hair growth control, potentially acting as a silencer of estrogen receptor alpha's catagen-promoting effects.
108 citations
,
July 2004 in “American Journal of Pathology” This study suggests that nerve growth factor plays a crucial role in the stress-induced termination of hair growth in mice, and its antagonism might offer a therapeutic approach to mitigate stress-related hair loss.
44 citations
,
March 2004 in “Journal of Investigative Dermatology” This study observed that in vitro treatment of male frontotemporal scalp hair follicles with 17-β-estradiol stimulated hair shaft generation and hair matrix keratinocyte proliferation, suggesting potential anagen-prolonging effects.
78 citations
,
February 2004 in “British Journal of Dermatology” This article reviews the potential impact of melatonin on hair growth, noting its benefits observed in animals, but reports no clinical results in humans to date.
33 citations
,
January 2004 in “Photochemistry and Photobiology” This study found that applying superoxide dismutase (SOD) gel on mice protected against hair graying caused by UV-A and psoralen exposure, suggesting photosensitization may be a factor in hair aging.
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.
194 citations
,
March 2003 in “American Journal of Pathology” This study found that psychoemotional stress disrupts hair growth in mice by terminating anagen and suggests a potential pathway for pharmacological management of stress-related hair loss in humans.
114 citations
,
August 2002 in “Journal of Investigative Dermatology” Alopecia areata is caused by an immune response, and targeting immune cells might help treat it.
144 citations
,
July 2002 in “Clinical and Experimental Dermatology” This article reviews the concept of telogen effluvium and emphasizes the importance of identifying triggers and using diagnostic investigations to determine the cause of hair loss, without reporting new results.
3 citations
,
April 2002 in “Animal Science” This study found that intradermal spermidine injections stimulated cell proliferation and increased fibre length growth rate in wool follicles of Merino lambs, without significantly affecting fibre diameter.
38 citations
,
February 2002 in “British journal of dermatology/British journal of dermatology, Supplement” This report describes two cases of sustained hair repigmentation related to porphyria cutanea tarda, though the underlying mechanism remains unclear.
125 citations
,
September 2001 in “The FASEB Journal” This study demonstrated that stress inhibited hair growth in mice, likely through substance P-dependent activation of immune cells, highlighting a brain-hair follicle connection.
234 citations
,
February 2001 in “British Journal of Dermatology” FPHL affects hair density and diameter, causing visible hair loss in older women.
131 citations
,
August 2000 in “International Journal of Dermatology” Inflammation may be linked to hair loss, and targeting specific enzymes could help treat it.
130 citations
,
December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” In this study, different types of catagen in the C57BL/6 mouse model exhibited varying effects on hair follicle melanocytes and melanin distribution, with spontaneous and dexamethasone-induced catagen showing pigment incontinence, while cyclophosphamide-induced catagen retained dendritic melanocytes but increased ectopic melanin.
214 citations
,
March 1993 in “Archives of Dermatology” This article proposes five different mechanisms for telogen effluvium, supported by clinical findings, based on changes in different phases of the hair cycle.
34 citations
,
October 1975 in “Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis”
