305 citations,
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,
December 2006 in “Journal of Biological Chemistry” Altering SSAT affects fat metabolism and body fat in mice.
124 citations,
July 1997 in “Journal of Biological Chemistry” Overexpressing a specific enzyme in mice causes hair loss and female infertility.
104 citations,
October 1999 in “The Journal of Urology” Finasteride doesn't harm male fertility or sperm quality, but may slightly reduce ejaculate volume.
61 citations,
July 2011 in “PLOS ONE” Spermidine may help reduce hair loss and deserves further testing as a treatment.
54 citations,
February 2002 in “Carcinogenesis” Increasing SSAT makes skin more prone to cancer.
54 citations,
May 2001 in “Journal of Investigative Dermatology” Excessive putrescine causes hair loss in transgenic mice by disrupting hair follicle development.
43 citations,
February 1999 in “Biochemical Journal” Overexpression of SSAT in mice causes hair loss, liver damage, and sensitivity to polyamine analogues.
37 citations,
February 2005 in “Journal of Investigative Dermatology” Overexpression of SSAT causes hair loss and skin issues, but reducing putrescine can help.
36 citations,
February 2011 in “Fertility and Sterility” Finasteride use may cause sperm damage and infertility, stopping it can improve sperm health.
35 citations,
October 2004 in “Biology of Reproduction” PNU157706 reduced rat sperm movement and fertility without affecting offspring health.
26 citations,
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,
January 2007 in “Archives of Andrology” Finasteride may negatively affect male fertility.
20 citations,
January 2021 in “GeroScience” Spermidine helps protect against aging by preserving telomere length.
18 citations,
June 2009 in “Journal of Molecular Endocrinology” Finasteride exposure harms tadpole reproduction and hormone balance.
18 citations,
June 2002 in “BJUI” Finasteride doesn't change rat testicle weight or sperm production.
15 citations,
March 2015 in “PloS one” Scientists restored fertility in male mice lacking a key fertility gene by using a modified gene.
13 citations,
July 2015 in “Archives of dermatological research” N1-methylspermidine helps hair growth and reduces inflammation in hair follicles.
13 citations,
March 1999 in “Biochemical Journal” Overexpressing SSAT in mice makes them highly sensitive to polyamine analogues, causing liver damage and high mortality.
11 citations,
March 2010 in “International Journal of Andrology” Finasteride 1-mg doesn't harm sperm or pregnancy chances.
10 citations,
July 1980 in “British Journal of Dermatology” Topical putrescine and spermine increased DNA synthesis in hairless mouse skin.
8 citations,
October 2017 in “Dermatology practical & conceptual” A spermidine-based supplement may help hair grow longer by keeping it in the growth phase.
4 citations,
September 2020 in “Andrologia” Oregano extract helps fix testis and sperm damage caused by finasteride.
3 citations,
June 2011 in “EFSA Journal” Spermidine's effect on hair growth is not proven.
3 citations,
April 2002 in “Animal Science” Spermidine injections increased wool growth rate in lambs without changing fibre thickness.
2 citations,
March 2021 in “Reproduction” Finasteride may affect male fertility by interfering with specific sperm signaling.
2 citations,
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,
May 2006 in “Journal of Separation Science” The method effectively measures spermidine in hair lotions.
1 citations,
January 2020 in “Recent Research in Genetics and Genomics/Recent Research in Genetics and Genomics ” High doses of Lepidium sativum seed extract are toxic and should be used with caution.
1 citations,
December 2011 in “EFSA Journal” Spermidine may help extend the growth phase of hair.