Methods
(1) Tissue level: The samples were divided into the normotensive pregnancy (NP) group and severe preeclampsia (SP) group. Hematoxylin-eosin staining, quantitative PCR, Western blotting and immunohistochemistry were performed.
(2) Cellular level: The samples were divided into the control group, TRPV1 agonist group (capsaicin), and TRPV1 inhibitor group (capsazepine), quantitative PCR and Western blotting were performed.