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.
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.
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.
37 citations
,
February 2005 in “Journal of Investigative Dermatology” Overexpression of SSAT causes hair loss and skin issues, but reducing putrescine can help.
19 citations
,
March 2016 in “Frontiers in Plant Science” Spermidine is essential for plant growth and adaptation to stress.
14 citations
,
March 2020 in “Cold Spring Harbor Perspectives in Biology” Mouse spermatogenesis shows that stem cells can behave flexibly and move widely in open environments.
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.
1 citations
,
January 2018 in “PubMed” Women with PCOS have a similar chance of getting pregnant using assisted reproductive treatment as those without PCOS.
1 citations
,
January 2002 in “Yaoxue jinzhan” Finasteride reduces sperm count and affects male reproductive function, while Epristeride does not.
January 2025 in “The World Journal of Men s Health” Intratesticular PRP injections are safe but not proven to improve sperm retrieval in certain infertile men.
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 2007 in “Journal of Reproduction & Infertility” Short-term finasteride use likely doesn't harm male fertility.
128 citations
,
December 2006 in “Journal of Biological Chemistry” Altering SSAT affects fat metabolism and body fat in mice.
104 citations
,
October 1999 in “The Journal of Urology” Finasteride doesn't harm male fertility or sperm quality, but may slightly reduce ejaculate volume.
72 citations
,
September 1975 in “Biology of Reproduction” Most zinc in rat sperm is in the tail, linked to structures similar to hair keratin.
61 citations
,
July 2011 in “PLOS ONE” Spermidine may help reduce hair loss and deserves further testing as a treatment.
49 citations
,
December 2007 in “Fertility and Sterility” Stopping finasteride improved sperm counts in two men, reducing the need for fertility treatments.
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.
31 citations
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January 2001 in “PubMed”
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
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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
,
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.