New York, NY: Springer New York
Research suggests that men with this type of ED may have lower blood levels of L-arginine compared to those without ED, suggesting that deficiency in these amino acids may contribute to impaired blood flow and erectile function[4]
many cosmetic and anti-aging claims are far less well supported

Andrographolide is the major active component of AP, exhibits diverse pharmacological activities, including anti-inflammatory, antioxidant, and antidiabetic activities ( In vitro and in vivo studies demonstrated that Rg1 down-regulated MDA and ROS, up-regulated SOD, increased the expression of Bcl-2 protein, decreased the activity of proteins such as Bax, cleaved cystathionase-3, and cleaved cystathionase-9, and effectively inhibited the oxidative stress response and reduced apoptosis in rats with DN ( 3.3.2 Steroidal saponins Diosgenin (DIO) is a plant sterol saponin, since time immemorial, DIO and its derivatives, which are obtained from the rhizomes of Dioscorea (popularly known as Shanyao in Chinese) are utilized in traditional Chinese medications ( 3.3.3 Flavonoid Formononetin (FMN) is one of the major isoflavonoids isolated from Astragalus, which has been found to have antioxidant activity in some studies ( in vitro experiments and has mitochondrial protective and anti-apoptotic effects (114)

doi: 10.1016/j.mehy.2020.110102 37 Cerqueira BorgesR.Sayuri HohmannM.MarquesB