January 1974 in “Nippon Nōgei Kagakukaishi/Nihon Nougei Kagakkaishi” Applying L-methionine and L-serine to the skin promotes the most hair growth.
84 citations
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June 1970 in “Journal of Investigative Dermatology” June 1996 in “Journal of Dermatological Science” February 2020 in “The Pharmaceutical Society of Japan” 186 citations
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October 1957 in “A M A Archives of Dermatology” Alopecia mucinosa is a challenging condition with unclear diagnosis and treatment.
175 citations
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January 1995 in “Birkhäuser Basel eBooks” Human hair growth and structure are influenced by keratin proteins, genes, melanin, and lipids.
98 citations
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February 2021 in “Dermatologic Therapy” Air pollution harms skin, causing aging, diseases, and cancer.
53 citations
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March 2006 in “Biopolymers” TTD hair is brittle due to fewer sulfur amino acids and unstable disulfide bonds.
37 citations
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October 2006 in “Steroids” New sulfur-containing steroid analogs show promise for more targeted medical treatments.
26 citations
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January 1983 in “PubMed” Trichothiodystrophy involves brittle hair due to low sulfur amino acids, not a transport defect.
21 citations
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January 2000 in “Fetal Diagnosis and Therapy” Prenatal diagnosis of trichothiodystrophy is possible in the second trimester using fetal eyebrow biopsy, with sulfur content analysis being more reliable.
20 citations
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November 2019 in “International Journal of Environmental Research and Public Health” Breathing in high levels of certain air pollutants significantly increases women's risk of developing Polycystic Ovary Syndrome.
18 citations
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December 2010 in “Journal of analytical atomic spectrometry” A new method accurately measures lead levels in hair to assess exposure.
18 citations
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January 2018 in “Advances in experimental medicine and biology” Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.
13 citations
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March 2010 in “International Journal of Cosmetic Science” Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
12 citations
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January 1994 in “Dermatology” The patient's hair had unique damage and a lower sulfur-to-nitrogen ratio compared to relatives, but not compared to healthy controls.
11 citations
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December 1921 in “Archives of dermatology and syphilology” A rare scalp disease causes hair loss, pus-filled nodules, and scarring.
10 citations
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January 1985 in “PubMed” Trace elements like calcium, iron, and zinc are unevenly distributed in hair, while sulfur is even, and increased phosphorus and potassium levels are linked to skin reactions.
10 citations
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March 1997 in “Pediatric Dermatology” A rare case of trichothiodystrophy was found with autism, seizures, and mental retardation.
7 citations
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March 2004 in “Journal of the American Academy of Dermatology” Tiger tail banding and hair abnormalities are reliable indicators for diagnosing trichothiodystrophy.
7 citations
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January 1982 in “Acta agriculturae Scandinavica” Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.
4 citations
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February 2007 in “Journal of the European Academy of Dermatology and Venereology” The study suggests silicon might be important for healthy hair, as less silicon was found in people with hair loss.
3 citations
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January 2021 in “Veterinary dermatology” A litter of cats had a hair condition similar to a mouse mutation, leading to hair loss and abnormal hair and skin.
2 citations
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January 1986 in “PubMed” PIXE is an effective method to analyze hair's elemental composition.
2 citations
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July 1994 in “Journal of Dermatological Science” Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.
1 citations
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December 2011 in “Journal of the American Academy of Dermatology” Using hair oil/grease may be linked to dandruff in African American girls.
1 citations
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August 1985 in “Proceedings annual meeting Electron Microscopy Society of America” SEM/EDX can analyze hair elements but struggles with trace elements, limiting its forensic use.
1 citations
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February 1938 in “Archives of Dermatology” The woman's hair loss might be due to a chronic infection.
1 citations
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July 2022 in “Bali Medical Journal” A combination of cyclosporine and oral corticosteroid successfully regrew hair in a 19-year-old with alopecia universalis.
1 citations
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August 1981 in “The Journal of Dermatology” All major hair defects involve cuticle abnormalities.