Research Article

Roles of Nitric Oxide and Prostaglandins in the Sustained Antihypertensive Effects of Acanthospermum hispidum DC. on Ovariectomized Rats with Renovascular Hypertension

Figure 1

Phytochemical analysis of ESAH obtained from A. hispidum DC. (a) Base peak chromatogram obtained by UPLC detected by HR-MS in the negative ionization and the fragmentation profile of monocaffeoylquinic acids, tentatively identified as neo-chlorogenic acid (5-CQA) (b), chlorogenic acid (3-CQA) (c), and crypto-chlorogenic acid (4-CQA) (d). The main breakdown site for dicaffeoylquinic acids is depicted in the 3,5 dicaffeoylquinic acid (3,5-di-CQA) and the fragmentation profile observed for peak 6.43 min (e), 6.67 min (f), and 7.07 min (g).