Erectile Dysfunction (Impotence)

Effect of Shi Chuang Zi plant-extract (osthole) on erectile tissue

Conclusion: Cnidium Monnieri (Shi Chuang Zi) naturally increases nitric oxide release, which powerfully increases the production of cGMP. Cyclic Guanosine Monophosphate (cGMP) is the key in obtaining and sustaining a powerful erection. cGMP relaxes the muscles around the penis, which makes it possible for the cells in the penis to take in blood, thus allows you to experience a proper erection.

Chen J, Chiou WF, Chen CC, Chen CF. Institute of Clinical Medicine, National Yang-Ming University, and National Research Institute of Chinese Medicine, Taipei, Taiwan, Republic of China.

Chinese herbs that have effect of eNOS expression (i.e. same function as viagra)

The purported effects of "circulation-improving" herbs used in traditional Chinese medicine (TCM) show striking similarities with the vascular actions of nitric oxide (NO) produced by the endothelial NO synthase (eNOS). We have previously reported that Salviae miltiorrhizae radix (Dan Shen) and Zizyphi spinosae semen (da zao) upregulate eNOS expression. In the present study, we studied the effect on eNOS gene expression of 15 Chinese herbs with potential effects on the vasculature, and identified Prunella vulgaris L. (PVL) (flowering spike, xia ku cao) as a potent eNOS-upregulating agent.

The relaxation/erectile mechanisms of tetrandrine (Chinese herb Fen Fang Ji)

Conclusion: Tetrandrine, the main active ingredient in the Chinese herb Fen Fang Ji (the safe Fang Ji), has shown to relax penis muscles for enhanced blood flow to erectile tissue. It's mode of action is through Ca channel blocking, not nitric oxide pathways (which is the mechanism of viagra).

Nat Prod Res. 2009;23(2):112-21. Chen J, Liu J, Wang T, Xiao H, Yin C, Yang J, Chen X, Ye Z.Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

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