2 Dúvidas Sobre Tribulus Terrestres

[krebz 3772]

15 horas atrás, santanaanderson disse:

Não sei se já confirmaram mas até onde eu pesquisava, Tribulus terrestres não tinha comprovação científica sobre o seu funcionamento.

 

Na verdade ela até funcionava mas em casos bem específicos, ou seja só fazia efeito em uma minoria.

 

Confirmaram o que já foi visto até então a anos atrás:

 

Ainda é uma bosta para testosterona, mas talvez aumente a circulação de sangue no penis...

 

Citar

J Ethnopharmacol. 2016 Feb 17;179:345-55. doi: 10.1016/j.jep.2015.12.055. Epub 2015 Dec 28.

Pro-sexual and androgen enhancing effects of Tribulus terrestris L.: Fact or Fiction.

Neychev V¹, Mitev V².

Author information

 

Abstract

ETHNO-PHARMACOLOGICAL RELEVANCE:

Historically, aphrodisiacs have had a reputation for making sex more achievable and satisfying. It has been long believed that Tribulus terrestris L. (TT), an annual plant of the family Zygophyllaceae, possesses aphrodisiac properties purportedly attributed to its ability to influence levels or mimic function of sex hormones. Due to this appealing beliefs, the popularity of medicinal products from TT is expanding at a remarkable pace among consumers who are attempting to enhance their sexual health. However, reliable scientific evidence supporting these purported bioactivities are scant and far from conclusive.

AIM OF THE REVIEW:

To critically analyze and updated the evidence supporting a role for TT as an aphrodisiac and to reappraise the widely believed view of TT as an androgen enhancing botanical supplement.

MATERIAL AND METHOD:

An extensive review of the literature was carried out based on systematic search of major scientific databases (PubMed, Elsevier, Springer Link, Google Scholar, Medline Plus, and Web of Science) for studies of phytochemical, pharmacological and traditional uses of TT published between 1968 and 2015. In addition, the reference lists of the available articles were reviewed and relevant studies including material in journals which are not indexed internationally were reviewed.

RESULTS:

Analysis of phytochemical and pharmacological studies in humans and animals revealed an important role for TT in treating erectile dysfunction and sexual desire problems; however, empirical evidence to support the hypothesis that this desirable effects are due to androgen enhancing properties of TT is, at best, inconclusive, and analysis of empirical evidence from a comprehensive review of available literature proved this hypothesis wrong. While the mechanisms underlying TT aphrodisiac activity remain largely unknown, there is emerging compelling evidence from experimental studies in animals for possible endothelium and nitric oxide-dependent mechanisms underlying TT aphrodisiac and pro-erectile activities.

CONCLUSION:

It is becoming increasingly clear that the deep-seated traditional view of TT bioactivity focused exclusively on its androgen enhancing properties is outdated and incapable for accommodating the emerging evidence from recent clinical and experimental studies pointing toward new and, perhaps, more plausible modes of action. Novel paradigms guiding the development of new testable hypotheses for TT aphrodisiac properties are needed to stimulate further investigations into potential biological mechanisms in which many apparently conflicting observations can be reconciled.

Citar

J Diet Suppl. 2014 Mar;11(1):64-79. doi: 10.3109/19390211.2014.887602.

A systematic review on the herbal extract Tribulus terrestris and the roots of its putative aphrodisiac and performance enhancing effect.

Qureshi A¹, Naughton DP, Petroczi A.

Author information

 

Abstract

Tribulus terrestris (TT) is a dicotyledonous herbal plant of the Zygophyllaceae family. In ancient medicine, extracts of the aerial parts and fruits have been used for its diuretic, tonic, and aphrodisiac properties. Today, TT is widely used by athletes and bodybuilders based on the belief, fueled by claims in marketing information, that it can enhance testosterone concentrations. To assess TT's effect on testosterone levels in human and animals, an electronic literature search out using seven databases and the patent database up to August 2013 was carried out. Randomized control trials, which included healthy human subjects ingesting TT as sole or combined supplement, along with animal studies with TT as a sole treatment across a number of species were included. Eleven studies met the inclusion criteria, including one patent application. The results showed that trials varied in duration, dosage and supplementation with TT as sole or combined treatment, rendering meta-analysis impossible. A limited number of animal studies displayed a significant increase in serum testosterone levels after TT administration, but this effect was only noted in humans when TT was part of a combined supplement administration. Literature available for the effectiveness of TT on enhancing testosterone concentrations is limited. Evidence to date suggests that TT is ineffective for increasing testosterone levels in humans, thus marketing claims are unsubstantiated. The nitric oxide release effect of TT may offer a plausible explanation for the observed physiological responses to TT supplementation, independent of the testosterone level.

 

Editado Novembro 1, 2017 às 05:42 por krebz
escrevi sangue 2x....