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Effect of Testosterone Supplementation With and Without a Dual 5α-Reductase Inhibitor on Fat-Free Mass in Men With Suppressed Testosterone Production

research Effect of Testosterone Supplementation With and Without a Dual 5α-Reductase Inhibitor on Fat-Free Mass in Men With Suppressed Testosterone Production

124 citations , March 2012 in “JAMA”

This abstract discusses the unclear role of dihydrotestosterone (DHT) in postembryonic life in marsupials and possibly humans, reporting no new findings.

Overexpression of Aldo-Keto Reductase 1C3 in LNCaP Cells Diverts Androgen Metabolism Towards Testosterone Resulting in Resistance to the 5α-Reductase Inhibitor Finasteride

research Overexpression of aldo-keto reductase 1C3 (AKR1C3) in LNCaP cells diverts androgen metabolism towards testosterone resulting in resistance to the 5α-reductase inhibitor finasteride

45 citations , January 2012 in “The Journal of Steroid Biochemistry and Molecular Biology”

This study found that overexpression of AKR1C3 in prostate cancer cells redirected androgen metabolism towards testosterone production, which facilitated cell proliferation, potentially reducing the effectiveness of finasteride treatment.

research Evaluation of 5α-reductase inhibitory activity of certain herbs useful as antiandrogens

33 citations , May 2013 in “Andrologia”

This study identified several herbs, including Ganoderma lucidum and Urtica dioica, that showed promising 5α-reductase inhibitory activity suggesting potential use in managing androgenic disorders.

research Long-term use of 5α-reductase inhibitors and the risk of male breast cancer

28 citations , August 2014 in “Cancer Causes & Control”

In this study, there was no evidence that using 5α-reductase inhibitors for either short or long durations increased the risk of male breast cancer.

research Synthesis and biological evaluation of novel unsaturated carboxysteroids as human 5α-reductase inhibitors: A legitimate approach

17 citations , June 2012 in “European journal of medicinal chemistry”

This study found that compounds 21–23 and 25 exhibited strong 5α-reductase II inhibition in vitro and significantly reduced rat prostate weight, performing comparably to finasteride.

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community Did anybody use beta sisterol for hair loss? I saw in many articles in the internet that said that beta sisterol blocks dht by inhibiting 5a reductase type 2 enzyme and some reviews of people who said that it worked better than saw palmetto in terms of stoping hair loss and helping prostate.

in Research/Science 9 upvotes 3 years ago

Beta-sitosterol may inhibit 5-alpha reductase type 2 enzyme, potentially reducing DHT levels and promoting hair growth, similar to finasteride but possibly with fewer side effects. Its effectiveness and side effects compared to other treatments like saw palmetto and finasteride remain uncertain due to limited research.

community Supposedly dairy contains precursors to DHT that are already 5a-reduced and convert to DHT independent of 5a-reductase inhibition

26 upvotes 5 months ago

Dairy may contain DHT precursors that could affect hair loss and prostate health, with some users noting reduced hair shedding after eliminating dairy. Individual responses to dairy and DHT blockers vary, with some attributing hair health to diet changes and others seeing no impact.

community Intriguing Molecular Structures and Questions (DHT, Progesterone, Fin, etc)

7 upvotes 2 years ago

The conversation discusses the molecular structures of compounds that reduce DHT levels, including finasteride and Ashwagandha. It explores the potential of using Ashwagandha topically as a 5a reductase inhibitor.

community Connection between Finasteride and cortisol???

3 upvotes 2 years ago

Finasteride may temporarily increase cortisol levels by inhibiting the 5a-reductase enzyme, potentially causing fatigue and insomnia. The body might adjust over time, but some users report prolonged issues with elevated cortisol and sleep disturbances.

community Mechanism of action of alfatradiol (17 alpha estradiol)

5 upvotes 2 years ago

The conversation discusses the mechanism of action of alfatradiol (17 alpha estradiol) in treating hair loss. It explores theories that it either inhibits 5 alpha reductase to prevent T->DHT conversion or aromatizes scalp T into 17-alpha-estradiol to save hair.

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