Ionized calcium and magnesium: The effect of septic shock in the baboon

Donald Trunkey, Mary Ann Carpenter, James Holcroft

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Ionized calcium (Ca2+) and ionized magnesium (Mg2+) are important intracellular “second messengers” and control excitation-contraction coupling, excitation-secretion, oxidative phosphorylation, and mitochondrial acid-base balance. The present study examines the effect of septic shock on serum (Ca2+) and (Mg2+). Five adult female baboons were subjected to live E. coli septic shock and then resuscitated. Three baboons served as controls. Ca2+ was measured by the Orion SS-20 flow-through calcium electrode and Mg2+ calculated by the method of Killen. Other measurements included: total calcium, bound calcium, total magnesium, bound magnesium, phosphate, albumin, globulin, hemotocrit, and total protein. This study shows that there are significant disturbances of Ca2+ and Mg2+ during septic shock in the baboon. These disturbances may in part explain cellular dysfunction during shock including: decreased myocardial contractility, inappropriate secretion of endocrine cells, decrease in oxidative phosphorylation, and mitochondrial acidosis.

Original languageEnglish (US)
Pages (from-to)166-172
Number of pages7
JournalJournal of Trauma - Injury, Infection and Critical Care
Issue number3
StatePublished - Mar 1978

ASJC Scopus subject areas

  • Surgery
  • Critical Care and Intensive Care Medicine


Dive into the research topics of 'Ionized calcium and magnesium: The effect of septic shock in the baboon'. Together they form a unique fingerprint.

Cite this