Gutmann H, Brugisser R, Schaffner W, Bogman K, Botomino A, Drewe J. Transport of amentoflavone across the blood-brain barrier in vitro. Planta Med. 2002;68(9):804 807.;
Baureithel KH, Buter KB, Engesser A, Burkard W, Schaffner W. Inhibition of benzodiazepine binding in vitro by amentoflavone, a constituent of various species of Hypericum. Pharm Acta Helv. 1997;72(3):153 157.;
Nielsen M, Frokjaer S, Braestrup C. High affinity of the naturally- occurring biflavonoid, amentoflavon, to brain benzodiazepine receptors in vitro. Biochem Pharmacol. 1988;37(17):3285 3287.
St. John\'s Wort can also be an effective tool when attempting to treat testosterone deficiency. : (Lisa Parris. Natural Testosterone Replacement Therapy | eHow.com). Effects of St John\'s wort (Hypericum perforatum L.) extract on plasma androgen concentrations in healthy men and women: a pilot study. (Phytother Res. 2005 Oct;19(10):901-6.) , , 5-, .. , , , . .
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Plasma hormone (FSH, LH, estradiol, progesterone, prolactin and testosterone ) and cytokine ... and weekly reports of anxiety, depression, ... did not differ significantly during the Hypericum perforatum and placebo cycles
, , . , "The efficacy of Hypericum perforatum (St John's wort) for the treatment of premenstrual syndrome: a randomized, double-blind, placebo-controlled trial" , "Hypericum perforatum was statistically superior to placebo in improving physical and behavioural symptoms of PMS (p < 0.05)." : " , PMS." "There were no significant effects of Hypericum perforatum compared with placebo treatment for mood- and pain-related PMS symptoms (p > 0.05). .... weekly reports of anxiety, depression, aggression and impulsivity, also did not differ significantly during the Hypericum perforatum and placebo cycles (p > 0.05)." , , , , (, , .), . - . "Further work is needed to determine whether pain- and mood-related PMS symptoms benefit from longer treatment duration." .
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RESULTS: Hypericum perforatum was statistically superior to placebo in improving physical and behavioural symptoms of PMS (p < 0.05). There were no significant effects of Hypericum perforatum compared with placebo treatment for mood- and pain-related PMS symptoms (p > 0.05). Plasma hormone (FSH, LH, estradiol, progesterone, prolactin and testosterone) and cytokine (IL-1beta, IL-6, IL-8, IFNgamma and TNFalpha) levels, and weekly reports of anxiety, depression, aggression and impulsivity, also did not differ significantly during the Hypericum perforatum and placebo cycles (p > 0.05).
: CNS Drugs. 2010 Mar 1;24(3):207-25.
The efficacy of Hypericum perforatum (St John's wort) for the treatment of premenstrual syndrome: a randomized, double-blind, placebo-controlled trial.
Canning S, Waterman M, Orsi N, Ayres J, Simpson N, Dye L.
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CONCLUSIONS: In women using OCPs ( ) and SJW ( - ) simultaneously, it appears that SJW does not interfere with the antiandrogenic properties of OCPs.
.: Contraception. 2006 Sep;74(3):245-8.
Does St. John's wort interfere with the antiandrogenic effect of oral contraceptive pills?
Fogle RH, Murphy PA, Westhoff CL, Stanczyk FZ.