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[Hypertension].

Kei Kamide1, Hiromi Rakugi

  • 1Division of Hypertension and Nephrology, National Cardiovascular Center, Osaka University Graduate School of Medicine.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|June 23, 2004
PubMed
Summary

Metabolic syndrome hypertension is linked to insulin resistance, which activates the renin-angiotensin system (RAS) and raises blood pressure. This review explores these mechanisms and treatments for hypertension in metabolic syndrome.

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Area of Science:

  • Endocrinology
  • Cardiovascular Medicine
  • Metabolic Disorders

Background:

  • Hypertension is a key feature of metabolic syndrome.
  • Insulin resistance is the primary suspected cause of metabolic syndrome.
  • Insulin resistance contributes to elevated blood pressure through various pathways.

Purpose of the Study:

  • To review the pathophysiologic mechanisms of hypertension in metabolic syndrome.
  • To discuss current antihypertensive therapies for metabolic syndrome patients.
  • To highlight the interplay between the renin-angiotensin system (RAS) and insulin signaling.

Main Methods:

  • Literature review of recent understandings.
  • Focus on pathophysiologic mechanisms.
  • Analysis of antihypertensive therapy.

Main Results:

  • Insulin resistance/hyperinsulinemia elevates blood pressure via sodium retention, sympathetic nervous system activation, and RAS activation.
  • Activated RAS (angiotensin II) and salt intake exacerbate insulin resistance by inhibiting insulin signaling.
  • A close relationship exists between vascular RAS and insulin's action on vasculature.

Conclusions:

  • Hypertension in metabolic syndrome is multifactorial, involving insulin resistance and RAS activation.
  • Therapeutic strategies should address both blood pressure and insulin sensitivity.
  • Understanding these interactions is crucial for effective management.

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