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Tribulus effects on T: 2008
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Thread: Tribulus effects on T: 2008
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01-24-2008, 07:23 AM #1Registered User
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Tribulus effects on T: 2008
Although this study did find pos effects on T, note the extract was administered intravenously, and I remain skeptical about the effects found in this study, but, it's interesting reading anyway:
Phytomedicine. 2008 Jan;15(1-2):44-54.Links
The hormonal effects of Tribulus terrestris and its role in the management of male erectile dysfunction - an evaluation using primates, rabbit and rat.
Gauthaman K, Ganesan AP.
Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 5 Lower Kent Ridge Road, 119074 Singapore.
Hormonal effects of Tribulus terrestris (TT) were evaluated in primates, rabbit and rat to identify its usefulness in the management of erectile dysfunction (ED). TT extract was administered intravenously, as a bolus dose of 7.5, 15 and 30mg/kg, in primates for acute study. Rabbits and normal rats were treated with 2.5, 5 and 10mg/kg of TT extract orally for 8 weeks, for chronic study. In addition, castrated rats were treated either with testosterone cypionate (10mg/kg, subcutaneously; biweekly for 8 weeks) or TT orally (5mg/kg daily for 8 weeks). Blood samples were analyzed for testosterone (T), dihydrotestosterone (DHT) and dehydroepiandrosterone sulphate (DHEAS) levels using radioimmunoassay.
In primates, the increases in T (52%), DHT (31%) and DHEAS (29%) at 7.5mg/kg were statistically significant. In rabbits, both T and DHT were increased compared to control, however, only the increases in DHT (by 30% and 32% at 5 and 10mg/kg) were statistically significant. In castrated rats, increases in T levels by 51% and 25% were observed with T and TT extract respectively that were statistically significant. TT increases some of the sex hormones, possibly due to the presence of protodioscin in the extract. TT may be useful in mild to moderate cases of ED.- Will @ BrinkZone
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01-24-2008, 07:43 AM #2I'm CEO, Bitch! ADMINISTRATOR
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01-24-2008, 08:05 AM #3Registered User
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That one was an abstract on pubmed. You would have to track down the journal listed and see if they ave a web page with free or paid downloads of the full paper.
Originally Posted by Prince
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01-24-2008, 09:27 AM #4Senior Member ELITE MEMBER
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yeah chuck D was posting this around. something to consider certainly.
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01-24-2008, 11:05 AM #5Registered User
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Much of it really makes no sense, so I am putting no real weight on it personally. Originally Posted by nni
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