54 citations
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May 2001 in “Journal of Investigative Dermatology” Excessive putrescine causes hair loss in transgenic mice by disrupting hair follicle development.
20 citations
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January 2021 in “GeroScience” Spermidine helps protect against aging by preserving telomere length.
13 citations
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July 2015 in “Archives of dermatological research” N1-methylspermidine helps hair growth and reduces inflammation in hair follicles.
13 citations
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March 1999 in “Biochemical Journal” Overexpressing SSAT in mice makes them highly sensitive to polyamine analogues, causing liver damage and high mortality.
8 citations
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October 2017 in “Dermatology practical & conceptual” A spermidine-based supplement may help hair grow longer by keeping it in the growth phase.
3 citations
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June 2011 in “EFSA Journal” Spermidine's effect on hair growth is not proven.
2 citations
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November 2017 in “Histochemistry and Cell Biology” Polyamines are abundant in certain parts of rat hair follicles and may play a key role in hair growth.
2 citations
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May 2006 in “Journal of Separation Science” The method effectively measures spermidine in hair lotions.
1 citations
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December 2011 in “EFSA Journal” Spermidine may help extend the growth phase of hair.
October 2025 in “Physiologia” Spermidine may improve skin health and hair growth by enhancing cell function.
January 2025 in “MEDS Public Health and Preventive Medicine” Spermidine supplements can help extend the hair growth phase and may be useful for treating hair loss.
July 2012 in “EFSA supporting publications” The EFSA maintained its view that spermidine's effect on hair growth is related to disease treatment and does not meet the health claim criteria.
10 citations
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July 1980 in “British Journal of Dermatology” Topical putrescine and spermine increased DNA synthesis in hairless mouse skin.
April 2026 in “ACS Applied Materials & Interfaces” Sper-12 nanoparticles may help treat hair loss by delivering siRNA to target androgen receptors.
42 citations
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February 1996 in “Journal of Investigative Dermatology” Polyamines, especially spermidine, are essential for hair growth.
10 citations
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June 2001 in “Annals of neurology” Alzheimer's patients have higher levels of certain chemicals in their hair.
6 citations
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January 2016 in “Bioorganic & Medicinal Chemistry Letters” Some minoxidil combinations can help differentiate leukemia cells without harming other cells.
2 citations
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January 2020 Certain dietary supplements can improve hair health.
2 citations
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January 2014 in “Hair therapy & transplantation” New treatments for hair growth disorders are needed due to limited current options and complex hair follicle biology.
November 2013 in “Tampere University Institutional Repository (Tampere University)” Tudor-SN is important for immune cells, and polyamines can promote hair growth.
August 2021 in “Journal of Investigative Dermatology” Adjusting polyamine levels could help treat skin disorders like psoriasis and skin cancer.
January 2020 in “International Journal of Applied Biology and P” Finasteride treatment for three years changes certain polyamine levels in the blood but not in urine.
January 2011 in “Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano)” New molecules can prevent cell death in hair follicles.
May 2024 in “Clinical Cosmetic and Investigational Dermatology” Manipulating cell cleanup processes could help treat hair loss.
17 citations
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May 2021 in “Journal of Cell Science” N1-acetylspermidine promotes hair follicle stem cell self-renewal.
22 citations
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December 2020 in “mSphere” A fungal enzyme was used to make compounds more soluble, aiding drug discovery and crop protection.
16 citations
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March 2020 in “Animal Biotechnology” Transgenic sheep embryos with a specific promoter were successfully created, but more research is needed for gene expression in hair follicles.
12 citations
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November 2014 in “Bioscience, Biotechnology, and Biochemistry” Genetically modifying a bacteria and changing its growth conditions significantly increased the production of a chemical called dipicolinic acid.
1 citations
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February 1991 in “Journal of Biological Chemistry” 6 citations
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June 1976 in “Journal of Investigative Dermatology”