Protection by acidotic pH against anoxic cell killing in perfused rat liver: Evidence for a pH paradox

R. T. Currin, Gregory James Gores, R. G. Thurman, J. J. Lemasters

Research output: Contribution to journalArticle

127 Citations (Scopus)

Abstract

Reperfusion of ischemic tissues causes a paradoxical injury. Here, we measured lactate dehydrogenase (LDH) release as an indicator of tissue damage in perfused rat livers during anoxia and reoxygenation. During anoxia, LDH release was substantially reduced at acidotic pH (pH 6.1-6.9). Using anoxia at pH 6.1 followed by reoxygenation at pH 7.3 to model ischemia and reperfusion, an abrupt release of LDH occurred after reperfusion. A similar release of LDH occurred when pH of anoxic livers was increased to 7.3 without reoxygenation, but LDH release did not occur after reoxygenation at pH 6.1. Thus, a rapid increase of pH rather than reoxygenation accounted for tissue injury after reperfusion of ischemic liver.

Original languageEnglish (US)
Pages (from-to)207-210
Number of pages4
JournalFASEB Journal
Volume5
Issue number2
StatePublished - 1991

Fingerprint

L-Lactate Dehydrogenase
Liver
Rats
Cells
lactate dehydrogenase
liver
rats
Tissue
Reperfusion
hypoxia
cells
ischemia
Reperfusion Injury
Ischemia
Wounds and Injuries
tissues
Hypoxia

Keywords

  • Anoxia
  • Ischemia
  • Lactate dehydrogenase
  • Reoxygenation
  • Reperfusion

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Cell Biology

Cite this

Protection by acidotic pH against anoxic cell killing in perfused rat liver : Evidence for a pH paradox. / Currin, R. T.; Gores, Gregory James; Thurman, R. G.; Lemasters, J. J.

In: FASEB Journal, Vol. 5, No. 2, 1991, p. 207-210.

Research output: Contribution to journalArticle

Currin, R. T. ; Gores, Gregory James ; Thurman, R. G. ; Lemasters, J. J. / Protection by acidotic pH against anoxic cell killing in perfused rat liver : Evidence for a pH paradox. In: FASEB Journal. 1991 ; Vol. 5, No. 2. pp. 207-210.
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