Autonomic Nervous System Mediates the Hypotensive Effects of Aqueous and Residual Methanolic Extracts of Syzygium polyanthum (Wight) Walp. var. polyanthum Leaves in Anaesthetized Rats
Figure 7
Effects of -adrenergic receptors’ blockage on changes in (a) MAP, (b) SBP, (c) DBP, and (d) HR by various treatments in WKY rats (). Prop: 2 mg/kg propranolol hydrochloride, Isop: 1.2 μg/kg isoproterenol hydrochloride, ΔMAP/SBP/DBP/HR: changes of MAP/SBP/DBP/HR from baseline (expressed as mean percentage ± SD), AESP: aqueous extract of S. polyanthum leaves, met-AESP: residual methanolic extract of S. polyanthum leaves, WKY: Wistar-Kyoto rats, SHR: spontaneously hypertensive rats. *, **, and ***.