PREMESSA: negli ultimi mesi ho assunto l'integratore di the verde e quello dell'ortica con l'intenzione di stimolare la produzione di SHBG. Contingentemente ho osservato un lieve aumento - ma non so se è fisiologico, cioè non so se si sarebbe ugualmente verificato - dei peli e della barba che non riuscivo a spiegarmi. Fino a che non ho letto su questo forum che l'ortica poteva avere anche un effetto antiaromatasi. Dunque l'ho sospesa, perché i peli di troppo non li volevo, eheh, e ho deciso di puntare solo sul the verde. Sono due mesi che non assumo più ortica (se non la quantità presente in una capsula di kmax: io difatti, attualmente, ogni giorno assumo due capsule di the verde della longlife, un capsula di taurina (sempre longlife), una di kmax, e un complesso di vitamine specifico per capelli). In questi due mesi, sospendendo l'ortica, mi dicevo che la crescita dei peli recenti si sarebbe interrotta, e invece è continuata. Qualche minuto fa cerco su internet e approdo in un forum in cui un utente ha postato questo studio (e sosteneva di averne letti altri) in cui si parlava degli effetti antiaromatasi del the verde. Che ne pensate?
http://www.ncbi.nlm.nih.gov/entrez/utils/fref.cgi?http://linkinghub.elsevier.com/retrieve/pii/S0278691502000662)
Inhibition of aromatase activity by green tea extract catechins and their endocrinological effects of oral administration in rats.
Satoh K, Sakamoto Y, Ogata A, Nagai F, Mikuriya H, Numazawa M, Yamada K, Aoki N.
Department of Toxicology, The Tokyo Metropolitan Research Laboratory of Public Health, 24-1 Hyakunincho 3 chome, Shinjuku-ku, Japan. sato@tokyo-eiken.go.jp
We orally administered polyphenone-60 (P-60), green tea extract catechins, in the diet (0, 1.25 and 5%) to male rats for 2, 4 and 8 weeks initiated at 5 weeks old. It was found that a 5% dose to male rats for 2-8 weeks induced goiters and decreased weights of the body, testis and prostate gland. Endocrinologically, elevating plasma thyroid stimulating hormone (TSH), luteinizing hormone (LH) and testosterone levels and decreasing tri-iodothyronine (T(3)) and thyroxine (T(4)) levels were induced by this treatment. We also found that P-60 as a whole and some of its constituents exhibited inhibitory effects on human placental aromatase activity by in vitro assay. The concentration of P-60 that required producing 50% inhibition of the aromatase activity (IC(50) value) was 28 microg/ml. The IC(50) values of (-)-catechin gallate (Cg), (-)-epig
http://www.ncbi.nlm.nih.gov/entrez/utils/fref.cgi?http://linkinghub.elsevier.com/retrieve/pii/S0278691502000662)
Inhibition of aromatase activity by green tea extract catechins and their endocrinological effects of oral administration in rats.
Satoh K, Sakamoto Y, Ogata A, Nagai F, Mikuriya H, Numazawa M, Yamada K, Aoki N.
Department of Toxicology, The Tokyo Metropolitan Research Laboratory of Public Health, 24-1 Hyakunincho 3 chome, Shinjuku-ku, Japan. sato@tokyo-eiken.go.jp
We orally administered polyphenone-60 (P-60), green tea extract catechins, in the diet (0, 1.25 and 5%) to male rats for 2, 4 and 8 weeks initiated at 5 weeks old. It was found that a 5% dose to male rats for 2-8 weeks induced goiters and decreased weights of the body, testis and prostate gland. Endocrinologically, elevating plasma thyroid stimulating hormone (TSH), luteinizing hormone (LH) and testosterone levels and decreasing tri-iodothyronine (T(3)) and thyroxine (T(4)) levels were induced by this treatment. We also found that P-60 as a whole and some of its constituents exhibited inhibitory effects on human placental aromatase activity by in vitro assay. The concentration of P-60 that required producing 50% inhibition of the aromatase activity (IC(50) value) was 28 microg/ml. The IC(50) values of (-)-catechin gallate (Cg), (-)-epig