A novel flavonoid derivative of icariside II improves erectile dysfunction in a rat model of cavernous nerve injury.

Andrology
Sheng-Ji GuRui-Li Guan

Abstract

Icariside II (ICA II), an active flavonoid monomer, has been proven to restore post-prostatectomy erectile dysfunction in rats; however, the high cost of extraction from natural plants limits the application of ICA II. To investigate the therapeutic effect and possible mechanism of action of YS-10, a new flavonoid compound, which was designed and synthesized based on the structure of ICA II in a rat model in of cavernous nerve injury. Eight of 32 adult male Sprague-Dawley rats were selected as the normal control (NC) group and received vehicle treatment. The remaining rats were subjected to bilateral cavernous nerve injury (BCNI) and randomized into three groups: BCNI group, BCNI + ICA II group (2.5 mg/kg/day), and BCNI + YS-10 group (2.5 mg/kg/day). The total procedure lasted for 21 days, followed by a washout period of 3 days. All animals were evaluated for erectile function, and tissues were harvested for histopathological analyses. It was observed that in YS-10 group, the ratio of intracavernous pressure (ICP) to mean arterial pressure (MAP) and the area under the ICP/MAP curve were effectively enhanced. The maximum ICP/MAP increased by 30% in the YS-10 group (0.86 ± 0.085) compared with the BCNI group (0.66 ± 0.058), which...Continue Reading

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