27 citations
,
January 2015 in “International Journal of Trichology” This study found that a marine-extract dietary supplement significantly reduced hair shedding and increased hair diameter in premenopausal women with subclinical hair thinning or hair loss after 6 months of use.
7 citations
,
January 2015 in “Hair therapy & transplantation” This review discusses the impact of air pollution on hair loss and sensitive scalp syndrome, evaluating possible causes and management strategies, but reports no new clinical results.
24 citations
,
January 2015 in “International Journal of Trichology” This research observed that among young men with androgenic alopecia, there was a significant association with metabolic syndrome compared to healthy controls, suggesting AGA as a potential early marker for metabolic risk.
37 citations
,
March 2014 in “Journal of Trace Elements in Medicine and Biology” This study reported that Turkish males with male pattern androgenetic alopecia had significantly lower zinc and copper levels in their hair compared to healthy controls, suggesting these imbalances may play a role in the condition's etiology.
147 citations
,
January 2014 in “American Journal of Clinical Dermatology” This study found that low-level laser treatment with the HairMax Lasercomb significantly increased terminal hair density in both men and women with pattern hair loss, with no serious adverse events reported.
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.
56 citations
,
September 2013 in “Journal of Biochemistry and Molecular Biology” This study observed that androgen treatment increased ROS production and TGF-β1 secretion in rat hair follicle dermal papilla cells, suggesting that the androgen-induced TGF-β1 is mediated by ROS.
117 citations
,
September 2013 in “Lasers in Surgery and Medicine” This study found that low level laser therapy at 655 nm significantly increased hair counts in males with androgenetic alopecia.
165 citations
,
August 2013 in “Lasers in Surgery and Medicine” This review discusses the potential mechanisms and evidence supporting low-level laser therapy for stimulating hair growth in men and women, while noting its safety and effectiveness but needing further study on specific parameters.
56 citations
,
January 2013 in “International journal of trichology” This case report suggests that zinc supplements may be necessary to improve hair loss in hypothyroidism patients being treated with thyroxine.
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.
46 citations
,
December 2010 in “PubMed” This study demonstrated that tocotrienol supplementation increased hair number in individuals with hair loss compared to a placebo, likely due to its antioxidant effects.
10 citations
,
January 2010 in “PubMed” This article reviews current hair loss treatments, proposing a hypothesis that a combination of drugs, supplements, and therapies may effectively manage hair loss, but presents no new clinical results.
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.
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.
92 citations
,
June 2005 in “Journal of Investigative Dermatology” This study found that the retinoid all-trans retinoic acid induced a catagen-like stage in human scalp hair follicles, suggesting upregulation of TGF-beta2 as a contributing mechanism.
5 citations
,
January 2004 in “Japanese journal of geriatrics” In this study, androgens were found to stimulate keratinocyte growth in co-culture with beard dermal papilla cells but inhibit it in co-culture with balding frontal scalp DPCs, mediated by TGF-beta1.
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.
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.
229 citations
,
August 2002 in “Experimental Gerontology” This paper discusses key mechanisms of androgen metabolism in androgenetic alopecia and reports the effectiveness of treatments like oral finasteride and topical minoxidil, highlighting the limited success rate due to factors like follicular inflammation.
131 citations
,
August 2000 in “International Journal of Dermatology” Inflammation may be linked to hair loss, and targeting specific enzymes could help treat it.
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.
234 citations
,
December 1996 in “Journal of The American Academy of Dermatology” The authors concluded that chronic telogen effluvium in middle-aged women presents distinct clinical and histological features that differ from androgenetic alopecia and acute telogen effluvium.
30 citations
,
August 1993 in “PubMed” This study found that IL-1 alpha inhibits the growth of cultured human hair follicles and hair fibers, suggesting a potential role in inflammatory hair loss conditions like alopecia areata.
32 citations
,
June 1976 in “JAMA” In this study, nine individuals who underwent rigorous weight loss programs experienced significant hair loss, which researchers attributed to insufficient energy supply to the hair matrix, with regrowth occurring within months.
23 citations
,
June 1976 in “PubMed” This study observed that crash dieting led to significant hair loss in patients, with hair regrowth occurring several months after the diet.
