The reaction between nitrite and hemoglobin: the role of nitrite in hemoglobin-mediated hypoxic vasodilation

J Inorg Biochem. 2005 Jan;99(1):237-46. doi: 10.1016/j.jinorgbio.2004.10.034.

Abstract

The reaction between nitrite and hemoglobin has been studied for over a century. However, recent evidence indicating nitrite is a latent vasodilatory agent that can be activated by its reaction with deoxyhemoglobin has led to renewed interest in this reaction. In this review we survey, in the context of our own recent studies, the chemical reactivity of nitrite with oxyhemoglobin, deoxyhemoglobin and methemoglobin, and place these reactions in both a physiological and pharmacological/therapeutic context.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Animals
  • Hemoglobins / chemistry*
  • Hemoglobins / pharmacology*
  • Humans
  • Hypoxia*
  • Nitrites / chemistry*
  • Oxygen / metabolism
  • Vasodilation / drug effects*
  • Vasodilation / physiology

Substances

  • Hemoglobins
  • Nitrites
  • Oxygen