305 citations
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March 2008 in “AJP Endocrinology and Metabolism” SSAT is a key enzyme affecting cell growth and metabolism, with potential but risky use in disease treatment.
128 citations
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December 2006 in “Journal of Biological Chemistry” Altering SSAT affects fat metabolism and body fat in mice.
124 citations
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July 1997 in “Journal of Biological Chemistry” Overexpressing a specific enzyme in mice causes hair loss and female infertility.
104 citations
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October 1999 in “The Journal of Urology” Finasteride doesn't harm male fertility or sperm quality, but may slightly reduce ejaculate volume.
72 citations
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September 1975 in “Biology of Reproduction” Most zinc in rat sperm is in the tail, linked to structures similar to hair keratin.
61 citations
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July 2011 in “PLOS ONE” Spermidine may help reduce hair loss and deserves further testing as a treatment.
54 citations
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February 2002 in “Carcinogenesis” Increasing SSAT makes skin more prone to cancer.
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.
49 citations
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December 2007 in “Fertility and Sterility” Stopping finasteride improved sperm counts in two men, reducing the need for fertility treatments.
37 citations
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February 2005 in “Journal of Investigative Dermatology” Overexpression of SSAT causes hair loss and skin issues, but reducing putrescine can help.
36 citations
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February 2011 in “Fertility and Sterility” Finasteride use may cause sperm damage and infertility, stopping it can improve sperm health.
35 citations
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October 2004 in “Biology of Reproduction” PNU157706 reduced rat sperm movement and fertility without affecting offspring health.
26 citations
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October 2014 in “Andrologia” Infertile men are more likely to produce sperm with abnormal chromosome numbers, which can affect pregnancy success and embryo health.
23 citations
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January 2007 in “Archives of Andrology” Finasteride may negatively affect male fertility.
20 citations
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January 2021 in “GeroScience” Spermidine helps protect against aging by preserving telomere length.
19 citations
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March 2016 in “Frontiers in Plant Science” Spermidine is essential for plant growth and adaptation to stress.
18 citations
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June 2009 in “Journal of Molecular Endocrinology” Finasteride exposure harms tadpole reproduction and hormone balance.
18 citations
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May 2002 in “BJUI” Finasteride doesn't change rat testicle weight or sperm production.
15 citations
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March 2015 in “PloS one” Scientists restored fertility in male mice lacking a key fertility gene by using a modified gene.
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.
11 citations
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March 2010 in “International Journal of Andrology” Finasteride 1-mg doesn't harm sperm or pregnancy chances.
10 citations
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July 1980 in “British Journal of Dermatology” Topical putrescine and spermine increased DNA synthesis in hairless mouse skin.
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.
4 citations
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September 2020 in “Andrologia” Oregano extract helps fix testis and sperm damage caused by finasteride.
3 citations
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July 2024 in “Urology Annals” Younger Klinefelter Syndrome patients have a better chance of successful sperm extraction.
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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March 2021 in “Reproduction” Finasteride may affect male fertility by interfering with specific sperm signaling.
2 citations
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September 2007 in “Fertility and Sterility” Stopping Propecia may improve sperm count and fertility.
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.