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research The 5 Alpha-Reductase Isozyme Family: A Review of Basic Biology and Their Role in Human Diseases

218 citations, December 2011 in “Advances in Urology”

The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.

Inhibition of Rat 5α-Reductase Activity and Testosterone-Induced Sebum Synthesis in Hamster Sebocytes by an Extract of Quercus Acutissima Cortex

research Inhibition of Rat 5α-Reductase Activity and Testosterone-Induced Sebum Synthesis in Hamster Sebocytes by an Extract of Quercus Acutissima Cortex

37 citations, January 2015 in “Evidence-based Complementary and Alternative Medicine”

An extract from Quercus acutissima bark was found to reduce sebum production and block an enzyme linked to acne.

research Recent Advances in Drug Design and Drug Discovery for Androgen-Dependent Diseases

11 citations, February 2016 in “Current Medicinal Chemistry”

New treatments for prostate cancer and BPH show promise, including novel compounds that target hormone synthesis and response.

research Persistent Erectile Dysfunction in Men Exposed to 5α-Reductase Inhibitors, Finasteride, or Dutasteride

50 citations, March 2017 in “PeerJ”

Using finasteride or dutasteride may cause long-lasting erectile dysfunction.

research Potential Targets in the Discovery of New Hair Growth Promoters for Androgenic Alopecia

59 citations, May 2014 in “Expert Opinion on Therapeutic Targets”

The document concludes that targeting 5α-reductase, the androgen receptor, and hair growth genes, along with using compounds with anti-androgenic properties, could lead to more effective hair loss treatments.

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community DHT levels after 4 weeks of Fina and 8 weeks of Fina + 4 weeks of Duta

in Update 36 upvotes 5 years ago

The user reported early stage diffuse hair thinning and increased DHT levels after 4 weeks on Finasteride and 8 weeks on Finasteride plus 4 weeks on Dutasteride, despite the medications being authentic and stored properly. They are considering increasing their Dutasteride dosage due to the lack of side effects and are unsure if the treatment is helping their hair.

community Finasteride affects both 5a reductase and 5b reductase

7 upvotes 5 years ago

Finasteride not only inactivates the 5a reductase enzyme but also affects the 5b reductase enzyme in a dose-dependent manner, which can impact sexual behavior and brain activity. The user experienced significant hair regrowth and side effects on 1mg of finasteride, which diminished after reducing the dose to 0.5mg, leading to no side effects and further hair improvement.

community From the research study: "Dihydrotestosterone and the concept of 5a-reductase inhibition in human benign prostatic hyperplasia" - G. Bartsch, R.S. Rittmaster, H. Klocker (2002) in the "World Journal of Urology".

in Research/Science 23 upvotes 2 years ago

Dutasteride is a stronger 5AR inhibitor than finasteride and can significantly lower DHT levels. Reduced doses of dutasteride may lower side effects.

community A repository of links to current scientific research and findings into the nature of and relating to side-effects for Finasteride/Dutasteride/5a-reductase inhibitors.

in Finasteride 17 upvotes 5 years ago

Finasteride and dutasteride, used for hair loss, can cause sexual dysfunction, depression, and suicidal thoughts, with some effects persisting after stopping. The post stresses the importance of being aware of these risks.

community Massive study on finasteride side effects released

in Finasteride/Dutasteride 83 upvotes 1 year ago

The release of a study on 5a-reductase inhibitors (finasteride and dutasteride) which showed an increased risk of depression, dementia, decreased libido, and reduced semen load as potential side effects; discussion around other forms of hair loss treatments such as topical minoxidil, RU58841, or opting to accept baldness; and advice to consider professional help for deeper issues related to hair loss.

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