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The present study was designed to examine the role of noradrenergic systems in the hypothalamic paraventricular nucleus (PVN) in the drinking response induced by microinjection of angiotensin II (ANG II) into the subfornical organ (SFO) in the awake rat. Intracerebral microdialysis techniques were utilized to quantify the extracellular concentration of noradrenaline (NA) in the region of the PVN....
OBJECTIVES: Our purpose was to determine whether blockade of inducible or endothelial nitric oxide synthesis prevents maternal vasodilation and blunting of angiotensin II responsiveness in the pregnant rat. STUDY DESIGN: Pregnant and nonpregnant rats were given (1) drinking water alone (untreated), (2) drinking water containing the inducible nitric oxide synthase inhibitor aminoguanidine (0.5 gm/L),...
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