18 citations,
March 2020 in “Frontiers in Neuroendocrinology” The enzymes 5α-reductase and 3α/β-hydroxysteroid oxidoreductase help create brain-active substances from progesterone and testosterone, which could be used for treatment, but more research is needed to ensure their safety and effectiveness.
46 citations,
September 2011 in “Journal of Endocrinology” Natural 5α-reduced glucocorticoids might be anti-inflammatory with fewer side effects than current options.
8 citations,
January 1986 in “Journal of hepatology” Men with liver cancer have higher levels of a specific testosterone byproduct in their liver and blood, despite overall lower male hormone levels.
10 citations,
December 1996 in “Fertility and Sterility” Women with acne have lower levels of a specific hormone marker than women without acne.
40 citations,
March 2016 in “The Journal of Clinical Endocrinology & Metabolism” Young girls whose mothers have PCOS may have higher activity of a specific enzyme that could lead to developing PCOS later.
10 citations,
May 2010 in “Analytica Chimica Acta” New tests detect finasteride and dutasteride in urine quickly and easily.
2 citations,
January 2010 in “Hormone Molecular Biology and Clinical Investigation” Low dose finasteride decreases certain steroids, possibly increasing depression risk.
26 citations,
November 1993 in “Progress in Neuro-psychopharmacology & Biological Psychiatry” Treatment during development affects hormone balance and sexual behavior in male rats.
54 citations,
July 2002 in “Clinical and Experimental Dermatology” DHT, a testosterone byproduct, causes male pattern baldness.
37 citations,
September 2018 in “Psychoneuroendocrinology” Finasteride treatment in male rats causes long-lasting effects on depression-like behavior, brain cell growth, inflammation, and gut bacteria composition.
4 citations,
May 2019 in “Physiology & Behavior” Cocaine impairs male sexual behavior and alters testosterone metabolism in the brain.
59 citations,
September 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride reduces scalp DHT levels, potentially treating male pattern baldness.
7 citations,
April 2019 in “The Journal of Steroid Biochemistry and Molecular Biology” 11α-Hydroxyprogesterone is changed into different substances by certain enzymes and may play a role in prostate cancer.
7 citations,
January 2018 in “Reproduction” Inhibiting 5α-reductase increases progesterone levels in late pregnant mares.
82 citations,
February 1989 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” A three-month treatment with a GnRH agonist significantly lowered androgen levels and 5α-reductase activity in men with benign prostatic hyperplasia.
7 citations,
June 2015 in “The American Journal of the Medical Sciences” Finasteride helps reduce blood vessel growth in diabetic rat kidneys.
58 citations,
June 2000 in “The Journal of Steroid Biochemistry and Molecular Biology” Different types of androgens bind differently to two receptors, AR1 and AR2, in Atlantic croaker's brain and ovarian tissues, suggesting these receptors may control different androgen actions in fish.
72 citations,
January 2011 in “Current Pharmaceutical Design” S5αR inhibitors might help treat schizophrenia and other mental disorders but need more research.
35 citations,
May 1986 in “Clinics in endocrinology and metabolism” The exact cause of increased 5α-reductase activity leading to hirsutism in women is still unknown.
26 citations,
July 1995 in “Neurobiology of Aging” Finasteride affects prostate weights and pituitary activity differently with age.
21 citations,
January 2020 in “General and Comparative Endocrinology” Lack or blocking of SRD5a, a key component in hormone creation, can lead to conditions like pseudohermaphrodism and affect hair growth, bone mass, muscle strength, and reproductive health. More research is needed on its regulation from fertilization to adulthood.
122 citations,
July 1990 in “Teratology” Finasteride exposure in pregnancy causes genital abnormalities in male rats.
11 citations,
May 1996 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” The main enzyme found in pubic skin that could be targeted to treat excessive hair growth is 5 alpha-R2.
8 citations,
January 1991 in “European Urology” Finasteride lowers DHT levels and raises testosterone in a dose-dependent way.
193 citations,
August 1985 in “Endocrinology” Different animals have unique versions of the enzyme that changes testosterone into another hormone, which is important for creating effective treatments for prostate and hair loss conditions.
137 citations,
March 2006 in “Cns Drug Reviews” Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.
33 citations,
December 2015 in “Neuroendocrinology” Finasteride treatment changes brain steroid levels and receptors, affecting brain function even after stopping treatment.
54 citations,
February 1993 in “Endocrine reviews” Androgen conjugates might be better indicators of skin sensitivity to hormones in women with excessive hair growth.
25 citations,
March 2017 in “Steroids” Allopregnanolone increases growth and changes gene activity in human brain cancer cells.
24 citations,
October 1994 in “Fertility and Sterility” People with hair loss may have different levels of certain hormones due to changes in hormone processing.