{Reference Type}: Journal Article {Title}: Chemical constituents from uncaria laevigata and their vasodilatory activities in vitro and action mechanism. {Author}: Huang L;Wang ZM;Zhao Q;Li HJ;Wu YC; {Journal}: Nat Prod Res {Volume}: 0 {Issue}: 0 {Year}: 2024 May 9 {Factor}: 2.488 {DOI}: 10.1080/14786419.2024.2352871 {Abstract}: A new triterpenoid compound 1* (scandine A1) was obtained from 95% ethanol extract of Uncaria laevigata. Meanwhile, eleven described compounds were also isolated for the first time from Uncaria laevigata. Herein, compound 2 exhibited strong diastolic cardio-cerebrovascular activity (EC50BA = 9.22 μM and EC50CA = 14.65 μM), which was not been previously described. Compound 1* also showed certain diastolic cardio-cerebrovasculary activity. Network pharmacology indicated that the diastolic cardio-cerebrovascular activity of compound 2 was most correlated with the Ras signalling pathway. Molecular docking confirmed that it exhibited strong binding activity with target protein (matrix metalloproteinase inhibitor-1). Moreover, compound 2 demonstrated significant potential on cardio-cerebrovascular activity in vitro. Overall, compounds 1* and 2 with good diastolic cardio-cerebrovascular activity were discovered in this work.