<prompt> Decreases contributory factor in chronic hypertension is associated withAldosteroneAngiotensin IINitric oxideReduced sympathetic nerve  <response>: Cl Nitric oxide 598- Ganong 22th 560- 562- K.S.4th 336-A.K. Jain 3rd 564- Ganong 23rd Excess of secretion of aldosterone from adrenal cortex leads to hypertension Tumours of the Juxtaglomerular cells leading to formation of excess of angiotension II- leads to Renal hypertension Nitric oxide No is an endothelium derived relaxing factor. It is synthesized from arginine. It is a vasodilator deficiency of this leads to hypertension Nitric oxide is necessary for maintenance of normal blood pressure NO- deficiency is associated with hypertension 