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Lorigo, Margarida; Mariana, Melissa; Lemos, Manuel C.; Cairrao, Elisa
Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology, February 2020, 2020-Feb, 2020-02-00, 20200201, Letnik: 196Journal Article
Display omitted •The main non-genomic vascular mechanism of Testosterone (T) is vasorelaxation.•T causes dependent-endothelium vasodilation by Gi/o protein and PKA activation.•T causes independent-endothelium vasodilation by pGC and PKG activation.•T-induced PKG activation activate Kv and BKCa and inactivate L-Type VOCC channels.•T is beneficial to the cardiovascular system and TRT may become a CVD treatment. Testosterone (T) is the predominant endogenous androgen in the bloodstream. At the vascular level, T presents genomic and non-genomic effects, and both effects may overlap. The genomic actions assume that androgens can freely cross the plasma membrane of target cells and bind to nuclear androgen receptors, inducing gene transcription and protein synthesis. The non-genomic effects have a more rapid onset and may be related to the interaction with protein/receptor/ion channels of the plasma membrane. The key T effect at the vascular level is vasorelaxation, which is primarily due to its rapid effect. Thus, the main purpose of this review is to discuss the T non-genomic effects at the vascular level and the molecular pathways involved in its vasodilator effect observed in in vivo and in vitro studies. In this sense, the nuclear receptor activation, the influence of vascular endothelium and the activation or inhibition of ion channels (potassium and calcium channels, respectively) will be reviewed regarding all the data that corroborated or not. Moreover, this review also provides a brief update on the association of T with the risk factors for cardiovascular diseases, namely metabolic syndrome, type 2 diabetes mellitus, obesity, atherosclerosis, dyslipidaemia, and hypertension. In summary, in this paper we consider the non-genomic vascular mode of action of androgen in physiological conditions and the main risk factors for cardiovascular diseases.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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