Abstract
Preeclampsia is a disorder of hypertension and proteinuria accompanied by abnormal inflammatory responses. Both aspirin and quercetin possess anti-inflammatory and anti-hypertensive properties. A low dose of aspirin is recommended for the prevention of preeclampsia in patients with preeclampsia history. Whether quercetin can enhance the effect of aspirin on preeclampsia remains elusive. Female Sprague-Dawley pregnant rats were treated with daily administration of aspirin, quercetin, or a combination of aspirin and quercetin and subsequently received lipopolysaccharides (LPS) injection to induce preeclampsia-like symptoms. The systolic blood pressure and proteinuria from all groups of rats were assessed. Our results demonstrated that the combination of quercetin and aspirin exerted significantly stronger effects than aspirin alone on decreasing systolic blood pressure and proteinuria, reducing pro-inflammatory cytokine production, and inhibiting M1-type decidual macrophages polarization in an LPS-induced rat model of preeclampsia. This study suggested that quercetin may serve as an excellent supplement to aspirin in preventing or treating patients with preeclampsia.
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