28 citations
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November 2009 in “European Journal of Neuroscience” Progesterone and allopregnanolone increase glycine release in rat brain cells.
Ethanol changes GABAA receptor α4 subunit levels through phosphorylation and neuroactive steroids.
6 citations
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March 2020 in “Scientific reports” Hair growth genes work better with more glucose due to changes in gene-regulating markers.
15 citations
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January 1988 Hair follicles have unique proteins that vary by species and are influenced by nutrition.
7 citations
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January 1959 in “Canadian Journal of Chemistry” Human and horse hair have similar end groups to wool and feathers.
2 citations
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August 1987 in “Analytical Biochemistry” A new method isolated previously undetected hair proteins rich in glycine and tyrosine.
1 citations
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July 2023 in “Al-Azhar Medical Journal” Higher antigliadin antibodies are linked to more severe alopecia areata, suggesting screening for celiac disease in these patients.
3 citations
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March 2016 in “Journal of Cosmetic Dermatology” GPIGS peptide increases thick hair growth in balding Japanese men.
46 citations
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April 1987 in “Brain Research” Hair-follicle nerves in cats' spinal cords can be inhibited by GABA-related connections.
May 2024 in “International Journal of Dermatology” More research is needed to understand if GLP-1 agonists affect hair health.
6 citations
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January 2016 in “Annals of Dermatology” Human hair contains more glycosaminoglycans in children than adults, and these compounds decrease with age, possibly affecting hair thickness.
15 citations
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August 1991 in “American Journal of Medical Genetics” A special diet can fix hair problems in argininosuccinase deficiency.
2 citations
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January 2025 in “Cutis” Glycemic control medications for Type 2 diabetes can affect skin conditions like psoriasis.
October 2021 in “JAAD Case Reports” Topical glycopyrrolate lotion helped reduce excessive sweating from eating in a diabetic man.
October 2024 in “Journal of the Endocrine Society” Ayme-Gripp Syndrome was confirmed in a woman through genetic testing, highlighting the need to consider rare genetic conditions in diagnoses.
54 citations
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January 1984 in “Molecular and Cellular Biochemistry” 3 citations
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September 2008 in “Current signal transduction therapy” Drugs that block GSK-3 show promise for treating various diseases.
2 citations
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January 1981 High temperatures and certain chemicals can significantly change the amino acid content in human hair.
Hair analysis can help identify specific minerals and amino acids linked to various diseases.
35 citations
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July 2010 in “The FEBS journal” The study found a specific peptide that helps detect TGase 3 activity in skin and hair follicles.
23 citations
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July 2020 in “Aging Cell” Aging changes sugar molecules on skin stem cells, which may affect their ability to repair skin.
36 citations
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April 2011 in “Journal of The American Academy of Dermatology” People with hair loss have higher risk of high blood sugar and diabetes, and lower levels of a specific hormone.
December 2023 in “Benha Journal of Applied Sciences” Men with male pattern baldness have higher blood sugar, bad cholesterol, and ZAG protein levels than healthy men.
11 citations
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January 2016 in “Molecular and Cellular Neuroscience” Chronic ethanol increases certain brain receptor levels, influenced by steroids and protein changes.
January 2022 in “Al-Azhar Medical Journal” Higher antigliadin antibody levels are linked to alopecia areata severity.
October 2025 in “Nephrology Dialysis Transplantation” Hair-straightening products with glyoxylic acid can cause kidney damage.
6 citations
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November 1977 in “International Journal of Legal Medicine” Human hair contains a substance that shows blood group A activity.
4 citations
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December 2018 in “Macedonian Journal of Chemistry and Chemical Engineering” A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.
Transglutaminases help form strong hair by linking proteins, and can potentially alter hair properties.
October 2025 in “JEADV Clinical Practice” GLP-1 receptor agonists may increase the risk of a specific type of hair loss called androgenetic alopecia.