PMID: 6402473Jan 1, 1983Paper

Ionic mechanisms of cerebrospinal fluid acid-base regulation

Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology
E E Nattie

Abstract

This review emphasizes the importance of strong ions in the regulation of cerebrospinal fluid (CSF) acid-base balance. In a solution like CSF that is devoid of nonbicarbonate buffers. [H+] and [HCO-3] are dependent variables, the independent variables being the CO2 partial pressure (PCO2) and the strong ion difference. Any measureable changes in CSF [HCO-3] and any change in [H+] that occur independent of changes in PCO2 must be accompanied by, if not caused by, changes in strong ions. The role of H+ and HCO-3 vs. strong ions in the ionic mechanisms of CSF acid-base regulation is unknown. For example, these mechanisms could depend only on changes in strong ions that accompany acid-base disorders, or they could be triggered by changes in [H+] or PCO2. These ideas are presented within the context of current concepts concerning the relationship of CSF to brain interstitial fluid (ISF) and the importance of choroid plexus and blood-brain barrier mechanisms in determining CSF and ISF ionic composition. Studies concerning CSF strong ions in normal and abnormal acid-base states are reviewed.

Citations

Jan 6, 2006·Pediatric Critical Care Medicine : a Journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies·Andrew Durward
May 1, 1991·Journal of Neurochemistry·D BairamianM H Epstein
Feb 16, 2021·Meat Science·E M Claudia TerlouwThierry Astruc
Oct 1, 1992·Trends in Neurosciences·M Chesler, K Kaila

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