Therapeutic strategies for targeting excessive central sympathetic activation in human hypertension

Exp Physiol. 2010 May;95(5):572-80. doi: 10.1113/expphysiol.2009.047332. Epub 2010 Mar 19.

Abstract

The pathogenesis of hypertension and its mode of progression are complex, multifactoral and incompletely understood. However, there is accumulating evidence from humans and animal models of hypertension indicating that excessive central sympathetic nerve activity (SNA) plays a pathogenic role in triggering and sustaining the essential hypertensive state (the so-called 'neuroadrenergic hypothesis'). Importantly, augmented central sympathetic outflow has also been implicated in the initiation and progression of a plethora of pathophysiological processes independent of any increase in blood pressure, such as left ventricular hypertrophy and cardiac arrhythmias. Thus, the sympathetic nervous system constitutes an important putative drug target in hypertension. However, traditional pharmacological approaches for the management of essential hypertension appear ineffective in reducing central sympathetic outflow. Recently, several new and promising therapeutic strategies targeting neurogenic hypertension have been developed. The present report will provide a brief update of this topic with a particular emphasis on human studies examining the efficacy of novel pharmacological approaches (central sympatholytics and statins), lifestyle modification (aerobic exercise training, weight loss and stress reduction) and surgical intervention (renal denervation, chronic carotid baroreflex stimulation and deep brain stimulation) in reducing excessive central sympathetic activation in hypertension.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Antihypertensive Agents / therapeutic use
  • Baroreflex / physiology
  • Denervation
  • Electric Stimulation Therapy
  • Exercise
  • Humans
  • Hydroxymethylglutaryl-CoA Reductase Inhibitors / therapeutic use
  • Hypertension / drug therapy*
  • Hypertension / physiopathology
  • Kidney / innervation
  • Nitric Oxide / physiology
  • Nitric Oxide Synthase / antagonists & inhibitors
  • Reactive Oxygen Species / antagonists & inhibitors
  • Stress, Psychological
  • Sympathetic Nervous System / drug effects
  • Sympathetic Nervous System / physiopathology
  • Sympatholytics / therapeutic use
  • Weight Loss

Substances

  • Antihypertensive Agents
  • Hydroxymethylglutaryl-CoA Reductase Inhibitors
  • Reactive Oxygen Species
  • Sympatholytics
  • Nitric Oxide
  • Nitric Oxide Synthase