Abstract
Stress urinary incontinence (SUI) is a common disorder in middle-aged women and the elderly. Although surgical treatment of SUI has progressed, there are no effective pharmacological therapies without a side effect. We studied the effect of ginsenoside Rh2 against SUI. Here, we studied the effect of ginsenoside Rh2 on the contractile force of the urethra and blood vessels in an ex vivo organ bath assay. We further investigated the mechanisms and effects of Rh2 in cell culture and animal models. Ginsenoside Rh2 dose-dependently reduced lipopolysaccharide (LPS)-induced nitric oxide (NO) production and inducible nitric oxide synthase (iNOS) expression in RAW 264.7 cells. In the vaginal distension (VD)-induced SUI mouse model, ginsenoside Rh2 significantly reversed the VD-induced SUI physical signs and reduced blood pressure. The modulation of several SUI-related proteins, including myosin, survival motor neuron (SMN) protein, α-adrenergic receptor 1a (AdR1a), and superoxide dismutase 3 (SOD3), may play some crucial roles in the therapeutic approaches against SUI. In conclusion, the ginsenoside Rh2 may offer therapeutic potential against SUI.
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