作者: A. H. Gilani , F. Shaheen , S. A. Saeed
DOI: 10.1007/BF02974250
关键词: Blood pressure 、 In vivo 、 Atropine 、 Norepinephrine (medication) 、 Endocrinology 、 Adrenergic receptor 、 Internal medicine 、 Thoracic aorta 、 Cholinergic 、 Pharmacology 、 Medicine 、 Diastole
摘要: Ethanolic extract ofDaucus carota (DC) at the dose of 10–100 mg/kg caused a dose-dependent fall in systolic and diastolic arterial, blood pressure normotensive anesthetized rats. These effects were not blocked by atropine (1 mg/kg) pretreatment withDC did alter pressor response to norepinephrine indicating that, cardiovascular ofDC are independent cholinergic or adrenergic receptors involvement. In spontaneously beating guinea-pig paired atria,DC induced a, concentration-dependent (0.3–5 mg/ml) decrease force rate atrial contractions. rabbit thoracic aorta,DC inhibition K+-induced contractions similar concentrations. results suggest that may exhibit Ca2+ channel blocking-like direct relaxant action on cardiac smooth muscle preparations this be responsible for its hypotensive effect observed thein vivo studies.